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Amphibian Research and Monitoring Initiative

ARMI » Research Projects

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Research Projects


Pacific Northwest - Biology

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek F; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek E; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RAAU Apex: Rana aurora (Northern Red-legged Frog)
Location: National Wildlife Refuges and an interagency wetland complex; South Honker Hollow; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Monitor Rana aurora

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek G; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RAAU Apex: Rana aurora (Northern Red-legged Frog)
Location: National Wildlife Refuges and an interagency wetland complex; Turtle Flats North; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010
Monitor Rana aurora

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek I; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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Trask Apex: Ascaphus truei (Coastal Tailed Frog)
Location: Tillamook County, Oregon; Pothole Creek; Years: 2008, 2009, 2010, 2011
Monitor stream amphibian population before and after experimental clearcut harvest to evaluate the impacts of current forest management practices on aquatic ecosystems.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek J; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Slab Creek; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Winterville; Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RAAU Apex: Rana aurora (Northern Red-legged Frog)
Location: National Wildlife Refuges and an interagency wetland complex; Dugout 1 (North); Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Monitor <I>Rana aurora</I>

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RAAU Apex: Rana aurora (Northern Red-legged Frog)
Location: National Wildlife Refuges and an interagency wetland complex; Killdeer; Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Monitor Rana aurora

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RAAU Apex: Rana aurora (Northern Red-legged Frog)
Location: National Wildlife Refuges and an interagency wetland complex; Lower 22 Pond; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Monitor Rana aurora

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Willamette Valley Mid-level Monitoring: Lithobates catesbeianus, Pseudacris regilla, Taricha granulosa, Rana aurora, Ambystoma gracile, Ambystoma macrodactylum (American Bullfrog, Pacific Treefrog, Rough-skinned Newt, Northern Red-legged Frog, Northwestern Salamander, Long-toed Salamander)
Location: National Wildlife Refuges and the West Eugene (multi-organization) Wetlands complex in the Willamette Valley; Willamette Valley; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Estimate extinction probabilities for native amphibians at sites with and without bullfrogs.

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» View trends in abundance

Trask Apex: Ascaphus truei (Coastal Tailed Frog)
Location: Tillamook County, Oregon; Gus Creek; Years: 2008, 2009, 2010, 2011
Monitor stream amphibian population before and after experimental clearcut harvest to evaluate the impacts of current forest management practices on aquatic ecosystems.

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Trask Apex: Ascaphus truei (Coastal Tailed Frog)
Location: Tillamook County, Oregon; Rock Creek; Years: 2008, 2009, 2010, 2011
Monitor stream amphibian population before and after experimental clearcut harvest to evaluate the impacts of current forest management practices on aquatic ecosystems.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Black Mountain Little; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends in abundance

Trask Apex: Ascaphus truei (Coastal Tailed Frog)
Location: Tillamook County, Oregon; Upper Mainstem Trask River; Years: 2008, 2009, 2010, 2011
Monitor stream amphibian population before and after experimental clearcut harvest to evaluate the impacts of current forest management practices on aquatic ecosystems.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Big Skinny Dip; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Black Mountain Middle; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Camp Creek Lower; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Black Mountain Lower; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Camp Creek Lowest; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Little Greenhorn; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Camp Creek Upper; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

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RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; NF Burnt River NE; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Elk Creek; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek A; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; NF Burnt River West; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

» View trends egg mass counts

RALU Apex: Rana luteiventris (Columbia Spotted Frog)
Location: Blue Mountains, eastern Oregon; Pine Creek D; Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Determine effect of cattle grazing on Rana luteiventris populations in eastern Oregon.

Southwest, Northern California - Biology

» View trends in abundance

Yosemite Apex mark - recapture of Rana sierrae: Rana sierrae (Sierra Nevada Yellow-legged Frog)
Location: Yosemite N. P.; Summit Meadow; Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Collect information on Rana sierrae abundance and other population parameters from a meadow complex in the Merced river basin of Yosemite.

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Yosemite Mid-level Monitoring: Rana sierrae, Pseudacris sierra, Anaxyrus canorus (Sierra Nevada Yellow-legged Frog, Sierran Treefrog, Yosemite Toad)
Location: Yosemite N.P.; Watersheds 1-14; Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013
Monitor presence of 3 species of amphibians in 14 watersheds in the Merced and Tuolumne river basins of Yosemite N.P.

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Rana draytonii Apex: Rana draytonii (California red-legged frog)
Location: Point Reyes N. S.; Cemetery pond; Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Collect information on Rana draytonii abundance and other population parameters from a representative pond in Olema Valley, Point Reyes National Seashore.

Southwest, Southern California - Biology

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Gabriel Mountains, Angeles National Forest, Southern California; Vincent Gulch, Angeles National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for this endangered species in the southern part of its range

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Gabriel Mountains, Angeles National Forest, Southern California; South Fork Big Rock Creek, Angeles National Forest; Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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MYLF Apex- Southern Califonia Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Gabriel Mountains, Angeles National Forest, Southern California; Devil's Canyon, Angeles National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Gabriel Mountains, Angeles National Forest, Southern California; Little Rock Creek, Angeles National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Bernardino Mountains, San Bernardino National Forest, Southern California; East Fork City Creek, San Bernardino National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Jacinto Mountains, San Bernardino National Forest, Southern California; Fuller Mill Creek, San Bernardino National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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MYLF Apex- Southern California Mountains: Rana muscosa (Sierra Madre Yellow-legged Frog)
Location: San Jacinto Mountains, San Bernardino National Forest, Southern California; Dark Canyon, San Bernardino National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

» View trends egg mass counts

CRLF Egg Mass Counts - San Francisquito Canyon: Rana draytonii (California red-legged frog)
Location: Upper Santa Clara River, Angeles National Forest, Southern California; San Francisquito Canyon, Angeles National Forest; Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of CRLF to determine population status and change over time, as well as gathering data relevant to the mangement and recovery of an endangered species

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AT post-fire monitoring- San Diego: Anaxyrus californicus (Arroyo Toad)
Location: San Diego River west of Julian, CA; Upper San Diego River; Years: 2008, 2009, 2010
To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

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AT post-fire monitoring- San Diego: Anaxyrus californicus (Arroyo Toad)
Location: San Dieguito River watershed east of Escondido, CA; Upper San Dieguito River Watershed; Years: 2008, 2009, 2010
To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

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AT post-fire monitoring- SanDiego: Anaxyrus californicus (Arroyo Toad)
Location: Cuyamaca Rancho State Park; Upper Sweetwater River; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010
To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

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AT post-fire monitoring- San Diego: Anaxyrus californicus (Arroyo Toad)
Location: Cottonwood Creek south of Dulzura, CA; Cottonwood Creek; Years: 2008, 2009, 2010
To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

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AT midlevel monitoring- MCBCP: Anaxyrus californicus (Arroyo Toad)
Location: Marine Corps Base Camp Pendleton, Southern California; MCBCP, Southern Califonia; Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Monitor population trends for the arroyo toad at Marine Corps Base Camp Pendleton http://www.werc.usgs.gov/sandiego/pdfs/MCB-protocol-3-2003.pdf

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MYLF Apex- Southern California Mountains: Aneides lugubris, Rana muscosa (Arboreal Salamander, Sierra Madre Yellow-legged Frog)
Location: San Gabriel Mountains, Angeles National Forest, Southern California; Bear Gulch, Angeles National Forest; Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Scientific investigations into the natural history of MYLF to track population dynamics and population changes over time for an endangered species in the southern part of its range

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San Diego County Terrestrial Amphibian Surveys: Anaxyrus boreas, Spea hammondii, Batrachoseps major, Pseudacris hypochondriaca (Western Toad, Western Spadefoot, Garden Slender Salamander, Baja California Chorus Frog)
Location: East of Miramar MCAS, San Diego County; UCSD Elliott Chaparrall Reserve; Years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Track amphibian population trends within the conserved lands system of San Diego County.
San Diego County Terrestrial Amphibian Surveys: Pseudacris hypochondriaca, Batrachoseps major, Spea hammondii, Ensatina eschscholtzii, Anaxyrus boreas (Baja California Chorus Frog, Garden Slender Salamander, Western Spadefoot, Ensatina, Western Toad)
Location: East of Escondido, San Diego County; Wild Animal Park; Years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Track amphibian population trends within the conserved lands system of San Diego County.

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San Diego County Terrestrial Amphibian Surveys: Anaxyrus boreas, Ensatina eschscholtzii (Western Toad, Ensatina)
Location: East of Chula Vista, San Diego County, California; Little Cedar; Years: 1995, 1996, 1997, 1998, 1999, 2000, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Track amphibian population trends within the conserved lands system of San Diego County.

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Remote Training Site Warner Springs AT Monitoring: Anaxyrus californicus (Arroyo Toad)
Location: Upper San Luis Rey watershed west of Warner Springs; Canada Aguanga; Years: 2010
Triennial monitoring of arroyo toads at the Remote Training Site Warner Springs.

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Remote Training Site Warner Springs AT Monitoring: Anaxyrus californicus (Arroyo Toad)
Location: Upper San Luis Rey watershed west of Warner Springs; San Luis Rey River; Years: 2010
Triennial monitoring of arroyo toads at the Remote Training Site Warner Springs.

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Remote Training Site Warner Springs AT Monitoring: Anaxyrus californicus (Arroyo Toad)
Location: Upper San Luis Rey watershed west of Warner Springs; West Fork San Luis Rey River; Years: 2010
Triennial monitoring of arroyo toads ath the Remote Training Site Warner Springs.

Rocky Mountains, Southern - Biology

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ROMO-ARMI: Anaxyrus boreas, Lithobates pipiens, Lithobates sylvaticus, Ambystoma mavortium, Pseudacris maculata (Western Toad, Northern Leopard Frog, Wood Frog, Western Tiger Salamander, Boreal Chorus Frog)
Location: Rocky Mountain NP; Rocky Mountain NP; Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 1988, 1989, 1990, 1994
Monitor occupancy of amphibian populations.

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Cameron Pass-Lily Pond: Lithobates sylvaticus, Pseudacris maculata (Wood Frog, Boreal Chorus Frog)
Location: Arapaho-Roosevelt NF; Lily Pond; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
1) investigate breeding phenology in 2 species 3) track presence of amphibian chytrid fungus 2) mark-recapture study of adult Pseudacris maculata to estimate population size and demographic rates (e.g., survival, recruitment, and movement).
Cameron Pass-Mathew's Pond: Lithobates sylvaticus, Pseudacris maculata (Wood Frog, Boreal Chorus Frog)
Location: Arapaho-Roosevelt N.F.; Mathew's Pond; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Investigate breeding phenology in 2 species and track presence of amphibian chytrid fungus. Mark-recapture study of adult Pseudacris maculata to estimate population size and demographic rates (e.g., survival, recruitment, and movement.

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Blackrock: Pseudacris maculata, Anaxyrus boreas (Boreal Chorus Frog, Western Toad)
Location: Bridger-Teton NF, Black Rock Ranger Station; Blackrock; Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Mark-recapapture study of adult A. boreas to estimate population size and demographic rates, especially with regards to infection prevalance and intensity by amphibian chytrid fungus.
Cameron Pass: Pseudacris maculata, Lithobates sylvaticus (Boreal Chorus Frog, Wood Frog)
Location: Arapaho-Roosevelt N.F.; Mathew's-Longdraw-Lily-Spencer16; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Investigate breeding phenology in 2 species using automated call surveys.

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North Fork Drainage-Lost: Anaxyrus boreas (Western Toad)
Location: Rocky Mountain NP; Lost Lake; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
1) monitor population changes in Anaxyrus boreas in association with identification of the amphibian chytrid fungus 2) mark-recapture study of adult A. boreas to estimate population size and demographic rates (e.g., survival, recruitment, and movement).

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North Fork Drainage-Kettle: Anaxyrus boreas (Western Toad)
Location: Rocky Mountain NP; Kettle Tarn; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 1991, 1992, 1993, 1994, 1995, 1996
1) monitor population changes in Anaxyrus boreas in association with identification of the amphibian chytrid fungus 2) mark-recapture study of adult Anaxyrus boreas to estimate population size and demographic rates (e.g., survival, recruitment, and movement).
Spruce: Anaxyrus boreas (Western Toad)
Location: Rocky Mountain NP; Spruce Lake; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 1991, 1992, 1993, 1994, 1995, 1996
1) monitor population changes in Anaxyrus boreas in association with identification of the amphibian chytrid fungus 2) mark-recapture study of adult A. boreas to estimate population size and demographic rates (e.g., survival, recruitment, and movement).

Rocky Mountains, Northern - Biology

Boreal toad population dynamics (Lost Trail): Anaxyrus boreas (Western Toad)
Location: Lost Trail National Wildlife Refuge, Montana; LOTR; Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Population dynamics (population size, annual survival) of male boreal toads, especially with regards to variation in amphibian chytrid disease.
Boreal toad population dynamics (Two Medicine): Anaxyrus boreas (Western Toad)
Location: Glacier National Park, MT; Two Medicine; Years: 2008, 2009, 2010
Estimate survival and movement of boreal toads (Anaxyrus [Bufo] boreas).

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Multi-species Occupancy Monitoring: Anaxyrus boreas, Rana luteiventris, Pseudacris regilla, Pseudacris maculata, Ambystoma macrodactylum (Western Toad, Columbia Spotted Frog, Pacific Treefrog, Boreal Chorus Frog, Long-toed Salamander)
Location: Glacier NP; Glacier NP; Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Monitor occupancy of amphibian populations at both the catchment and wetland scales.

» View trends in occupancy

Multispecies Occupancy, Greater Yellowstone Ecosystem: Pseudacris maculata, Rana luteiventris, Ambystoma mavortium, Anaxyrus boreas (Boreal Chorus Frog, Columbia Spotted Frog, Western Tiger Salamander, Western Toad)
Location: Grand Teton and Yellowstone National Parks; Grand Teton and Yellowstone National Parks; Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Monitor occupancy of amphibian populations at both the catchment and wetland scales. This is a collaborative project with the Greater Yellowstone Inventory and Monitoring Network.

» View trends egg mass counts

Egg mass counts, Columbia spotted frogs (Lost Horse): Rana luteiventris (Columbia Spotted Frog)
Location: Bitterroot NF; Lost Horse Creek Marsh; Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Count egg masses annually (since 1999) to track size of the female population. These data are also used to to estimate potential effects of climate change (via changes in snowpack) on amphibian populations.
Site-specific Monitoring: Anaxyrus boreas (Western Toad)
Location: National Elk Refuge (Nowlin Ponds, Romney Ponds, and Gros Ventre River); National Elk Refuge; Years: 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Monitor presence of historical boreal toad breeding populations.

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Columbia spotted frog population dynamics, upper Lodge Creek: Rana luteiventris (Columbia Spotted Frog)
Location: Yellowstone NP; upper Lodge Creek; Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 1953, 1954, 1955, 1992, 1993, 1994, 1995, 1996
Describe long-term changes in population size, structure, phenology, and habitat use patterns of Columbia spotted frogs. This is a collaborative project with the Greater Yellowstone Inventory and Monitoring Network.

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Boreal toad (Anaxyrus boreas) population dynamics, Lubrecht Experimental Forest: Anaxyrus boreas (Western Toad)
Location: Lubrecht Experimental Forest, Montana; Lubrecht Experimental Forest Pond; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
Capture-recapture study of adult Anaxyrus boreas to estimate population size and demographic rates (e.g., annual survival and recruitment.

Midwest - Biology

St. Croix National Scenic Riverway (SCNSR): Lithobates pipiens, Lithobates septentrionalis, Anaxyrus americanus, Lithobates sylvaticus, Hyla versicolor, Hyla chrysoscelis, Pseudacris triseriata, Lithobates clamitans, Pseudacris crucifer (Northern Leopard Frog, Mink Frog, American Toad, Wood Frog, Gray Treefrog, Cope's Gray Treefrog, Western Chorus Frog, Green Frog, Spring Peeper)
; St. Croix National Scenic Riverway; Years: 2008, 2009, 2010, 2011
Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.
Upper Mississippi River (UMR): Pseudacris crucifer, Lithobates clamitans, Pseudacris triseriata, Hyla chrysoscelis, Hyla versicolor, Lithobates sylvaticus, Anaxyrus americanus, Lithobates pipiens (Spring Peeper, Green Frog, Western Chorus Frog, Cope's Gray Treefrog, Gray Treefrog, Wood Frog, American Toad, Northern Leopard Frog)
Location: Upper Mississippi River; Upper Mississippi River; Years: 2008, 2010, 2011
Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.
Neal Smith National Wildlife Refuge: Acris blanchardi, Lithobates blairi, Lithobates pipiens, Lithobates catesbeianus, Anaxyrus americanus, Hyla versicolor, Hyla chrysoscelis, Pseudacris triseriata, Ambystoma tigrinum (Blanchard's Cricket Frog, Plains Leopard Frog, Northern Leopard Frog, American Bullfrog, American Toad, Gray Treefrog, Cope's Gray Treefrog, Western Chorus Frog, Tiger Salamander)
Location: Neal Smith National Wildlife Refuge, Iowa; Neal Smith National Wildlife Refuge; Years: 2003, 2004, 2005
Describe presence, baseline occupancy, relative diversity, gross external deformities, and the presence of pathogens relative to environmental conditions.
Mississippi National River and Recreation Area: Ambystoma tigrinum, Pseudacris sp., Hyla versicolor, Lithobates clamitans, Anaxyrus americanus, Lithobates pipiens, Lithobates catesbeianus (Tiger Salamander, Chorus Frogs, Gray Treefrog, Green Frog, American Toad, Northern Leopard Frog, American Bullfrog)
Location: Mississippi National River and Recreation Area; Mississippi National River and Recreation Area; Years: 2004, 2005
Describe presence, baseline occupancy, relative diversity, gross external deformities, and the presence of pathogens relative to environmental conditions.

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Non-federal lands in Iowa, Illinois, Wisconsin, and Minnesota: Lithobates catesbeianus, Lithobates pipiens, Anaxyrus americanus, Lithobates blairi, Acris blanchardi, Lithobates sphenocephalus, Lithobates clamitans, Hyla versicolor, Hyla chrysoscelis, Pseudacris triseriata (American Bullfrog, Northern Leopard Frog, American Toad, Plains Leopard Frog, Blanchard's Cricket Frog, Southern Leopard Frog, Green Frog, Gray Treefrog, Cope's Gray Treefrog, Western Chorus Frog)
Location: Non-federal lands in Iowa, Illinois, Wisconsin, and Minnesota; Non-federal lands in Iowa, Illinois, Wisconsin, and Minnesota; Years: 2002, 2003, 2004, 2005, 2006, 2007
Describe baseline amphibian diversity, gross external deformities, and the presence of pathogens relative to environmental conditions. Estimate baseline occupancy and detection probabilities when possible.

Northeast - Biology

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National Capital Region Monitoring: Eurycea bislineata, Desmognathus fuscus, Pseudotriton ruber (Northern Two-lined Salamander, Northern Dusky Salamander, Red Salamander)
Location: Potomac, MD; C&O NHP Goldmine Loop; Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
determine whether the integrity and status of amphibian populations are changing over time

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ACS Vernal Pools: Ambystoma maculatum, Lithobates sylvaticus (Spotted Salamander, Wood Frog)
Location: Massachusetts; Cape Cod National Seashore; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: Maryland; Patuxent Research Refuge; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Ambystoma maculatum, Lithobates sylvaticus (Spotted Salamander, Wood Frog)
Location: Massachusetts; Eastern Massachusetts NWR Complex; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: Maine; Acadia National Park; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Ambystoma maculatum, Lithobates sylvaticus (Spotted Salamander, Wood Frog)
Location: Maine; Rachel Carson NWR; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: West Virginia; Canaan Valley NWR & State Park; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Ambystoma maculatum, Lithobates sylvaticus (Spotted Salamander, Wood Frog)
Location: Pennsylvania; Erie NWR; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Ambystoma laterale, Lithobates sylvaticus (Blue-spotted Salamander, Wood Frog)
Location: New Jersey; Great Swamp NWR; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma laterale (Wood Frog, Blue-spotted Salamander)
Location: New York; Iroquois NWR; Years: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in occupancy

National Capital Region Monitoring: Desmognathus fuscus, Eurycea bislineata, Pseudotriton ruber (Northern Dusky Salamander, Northern Two-lined Salamander, Red Salamander)
Location: Maryland/D.C.; Rock Creek Park; Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
determine whether the integrity and status of amphibian populations are changing over time

» View trends in occupancy

SNP Pshe/Pcin Occupancy: Plethodon cinereus, Plethodon shenandoah (Eastern Red-backed Salamander, Shenandoah Salamander)
Location: SNP Central, VA; Shenandoah National Park; Years: 2007, 2008, 2009, 2011, 2012, 2013
assess occupancy dynamics of Plethodon shenandoah and P. cinereus in high-elevation habitats of Shenandoah National Park

» View trends in occupancy

National Capital Region Monitoring: Pseudotriton ruber, Eurycea bislineata, Desmognathus fuscus (Red Salamander, Northern Two-lined Salamander, Northern Dusky Salamander)
Location: Virginia; Prince William Forest Park; Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
determine whether the integrity and status of amphibian populations are changing over time

» View trends in occupancy

» View trends in occupancy

ACS Vernal Pools: Ambystoma maculatum, Lithobates sylvaticus (Spotted Salamander, Wood Frog)
Location: Maryland; Rock Creek Park; Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in abundance

Egg Mass Counts
Location: Lake Umbagog NWR; Day Flat; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in occupancy

ACS Vernal Pools: Ambystoma maculatum, Ambystoma laterale, Lithobates sylvaticus (Spotted Salamander, Blue-spotted Salamander, Wood Frog)
Location: New Jersey; Wallkill River NWR; Years: 2004, 2005, 2006, 2010, 2011, 2012
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Robin's Pond; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Kettle Hole Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Walkill River NWR; Judge Beach #1; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Lake Umbagog NWR; Errol Hill 01; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Acadia National Park; Gorge VP; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Sam's Pond; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Replacement Pool; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Walkill River NWR; Scenic Lakes Rd North; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Lake Umbagog NWR; Errol Hill 02 VPEH02; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Acadia National Park; Otter VP; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rock Creek National Park; Parkside; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Rona's Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Walkill River NWR; Wood Duck Nature Trail 2; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Lake Umbagog NWR; Little Berlin VPLB03; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Acadia National Park; Schooner Head Road; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rock Creek National Park; Riley Springs; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Triple Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Missisquoi NWR; Field 10 Pond; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Acadia National Park; Western Mtn Rd N; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rock Creek National Park; Weir Pond; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; Batch Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Missisquoi NWR; Field 46; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Aroostook NWR; Greenlaw; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rock Creek National Park; West Beach; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; Juice Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Missisquoi NWR; Field 8 Pond; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Aroostook NWR; Nebraska; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rachel Carson NWR; Campground Pond; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; PeWa (PeeWee's) Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Missisquoi NWR; Henry's Pond; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Aroostook NWR; Obar; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rachel Carson NWR; Goosefair; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; Swamp Road Pool; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Missisquoi NWR; New HQ Pond; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Aroostook NWR; Railroad; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rachel Carson NWR; Kate; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; Teepleville Road Pool; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Moosehorn NWR; Barn Meadow; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; E18; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rachel Carson NWR; Rachel's Pond; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Erie NWR; Wolf's Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Moosehorn NWR; Hanson Pit; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; E21; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Rachel Carson NWR; Short Farm; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Bay NWR; Field; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Moosehorn NWR; McConvey Rd; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; E4; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Shenandoah NP; Big Meadows; Years: 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Bay NWR; Games I; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Moosehorn NWR; Route 191 - East Side; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; W15; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Shenandoah NP; Hog Camp Swamp; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Bay NWR; Office Pool; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Moosehorn NWR; South Ridge Road - Site 6; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; W3; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Shenandoah NP; Pond Ridge; Years: 2002, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Bay NWR; Point Pool ; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Prime Hook NWR; Annie's Pond; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Cape Cod National Seashore; W6; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Beltsville 1; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Bay NWR; Road Ditch Pool; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Prime Hook NWR; Black Farm Road; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley NWR; Beall Cabin Woods; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: Northeast US; Gettysburg National Military Park; Years: 2004, 2005, 2006, 2007, 2012, 2013
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Beltsville 2; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Swamp NWR; Behrens Pond; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Prime Hook NWR; Gravel Pit; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley NWR; Forest Rd 80 Quarry Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Entomology - Boards 1-19; Years: 2002, 2003, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Swamp NWR; Harding Landfill VP; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Prime Hook NWR; Shop Pond; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley NWR; FR 80 Bog Pools; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Entomology - Boards 91-113; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Swamp NWR; MCOECP; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Parker River NWR; Chain Pond; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley NWR; Middle Ridge Beaver Ponds; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Entomology Back Pond 1; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Swamp NWR; Passaic River Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Parker River NWR; Cranberry Bog; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley NWR; Middle Ridge Slash Pool; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: Maine; Moosehorn NWR; Years: 2004, 2005, 2006, 2007
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Entomology Back Pond 2; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Great Swamp NWR; Red Trail Vernal Pool; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Parker River NWR; Hellcat Swamp Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley State Park; Back Hollow Pond; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Laura's Pond; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Iroquois NWR; Feeder Pool; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Parker River NWR; Lot 6 Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley State Park; Cabin Pond; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Powerline 1-36; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Iroquois NWR; Horseshoe Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Blue Road Pool; Years: 2003, 2004, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley State Park; Lodge Pond; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Powerline 57-68; Years: 2002, 2003, 2004, 2005
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Iroquois NWR; Jefferson Pool; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Cabin Pond; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Canaan Valley State Park; North Gravel Pit; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Powerline 84-136; Years: 2002, 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Iroquois NWR; Onondaga Pool; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Evaac Pool; Years: 2003
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Academy Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: USDA Beltsville Agricultural Research Center; Shumate; Years: 2002, 2003, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Iroquois NWR; Sour Springs South; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in occupancy

ACS Vernal Pools: Lithobates sylvaticus, Ambystoma maculatum (Wood Frog, Spotted Salamander)
Location: Pennsylvania, New Jersey; Delaware Water Gap NRA; Years: 2005, 2006
investigate large-scale patterns in the distribution and occupancy of vernal pools by wood frog and spotted salamanders

» View trends in abundance

Egg Mass Counts
Location: Patuxent Wildlife Research Center; Red Road; Years: 2003, 2004, 2004
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Eastern Massachusetts NWR; Forest Pool; Years: 2002
Estimate abundance of AMAC and RSYL

» View trends in abundance

Egg Mass Counts
Location: Walkill River NWR; Headquarters #1; Years: 2002
Estimate abundance of AMAC and RSYL

Southeast - Biology

» View trends in occupancy

Monitoring winter breeding frogs and salamanders: Pseudacris nigrita, Pseudacris ornata, Ambystoma talpoideum (Southern Chorus Frog, Ornate Chorus Frog, Mole Salamander)
Location: St Marks NWR; St Marks NWR; Years: 2009, 2010, 2011, 2012, 1996
Estimate extinction and colonization rates of pond breeding frogs and salamanders in relation to climate.
Detection Probabilities and Occupancy Estimates for Amphibians at Okefenokee NWR (Spring): Lithobates sphenocephalus, Lithobates grylio, Rana virgatipes, Hyla femoralis (Southern Leopard Frog, Pig Frog, Carpenter Frog, Pine Woods Treefrog)
Location: Okefenokee NWR; Okefenokee NWR; Years: 2001, 2002
Amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interiorís national Amphibian Research and Monitoring Initiative.
Detection Probabilities and Occupancy Estimates for Amphibians at Okefenokee NWR (Summer): Hyla femoralis, Rana virgatipes, Lithobates grylio, Lithobates sphenocephalus (Pine Woods Treefrog, Carpenter Frog, Pig Frog, Southern Leopard Frog)
Location: Okefenokee NWR; Okefenokee NWR; Years: 2001, 2002
Amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interiorís national Amphibian Research and Monitoring Initiative
Detection Probabilities and Occupancy Estimates for Amphibians at Okefenokee NWR (Fall): Lithobates sphenocephalus, Lithobates grylio, Rana virgatipes, Hyla femoralis (Southern Leopard Frog, Pig Frog, Carpenter Frog, Pine Woods Treefrog)
Location: Okefenokee NWR; Okefenokee NWR; Years: 2001, 2002
Amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interiorís national Amphibian Research and Monitoring Initiative.
Detection Probabilities and Occupancy Estimates for Amphibians at Okefenokee NWR (Winter): Hyla femoralis, Rana virgatipes, Lithobates grylio, Lithobates sphenocephalus (Pine Woods Treefrog, Carpenter Frog, Pig Frog, Southern Leopard Frog)
Location: Okefenokee NWR; Okefenokee NWR; Years: 2001, 2002
Amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interiorís national Amphibian Research and Monitoring Initiative
Aquatic Salamander population monitoring-Ordway: Amphiuma means, Siren sp. (Two-toed Amphiuma, Sirens)
Location: Ordway Biological Station, Melrose, Florida; Lake Suggs; Years: 2001, 2003, 2004, 2005
Monitior abundance and survivorship of sirens and amphiuma at Ordway Biological Station.

South Central - Biology

Marbled Salamander Reproductive Ecology: Ambystoma opacum (Marbled Salamander)
Location: Kisatchie National Forest; Kisatchie District, Kisatchie Bayou Campground Area; Years: 2010, 2011
The primary goal of this study is to investigate nest ecology and dynamics in marbled salamanders in Kisatchie District of Kisatchie National Forest.
Ambystomatid Salamander Monitoring at Kisatchie National Forest: Ambystoma opacum, Ambystoma maculatum, Ambystoma talpoideum, Ambystoma texanum (Marbled Salamander, Spotted Salamander, Mole Salamander, Small-mouthed Salamander)
Location: Kisatchie National Forest; Kisatchie District, Kisatchie Bayou Campground Area; Years: 2010, 2011
The goals of this study are to 1.) estimate the number of adults of each species using the pond, 2.) determine the reproductive effort of adults (number of egg masses), 3.) estimate the density of larvae and predators in the pond, and 4.) examine the yearly variability in phenology of breeding among species.
Potential impacts of salinity on anuran occupancy dynamics at Big Thicket National Preserve: Pseudacris crucifer, Lithobates clamitans, Hyla chrysoscelis, Hyla cinerea, Hyla versicolor, Gastrophryne carolinensis, Lithobates catesbeianus, Lithobates grylio, Lithobates sphenocephalus, Incilius nebulifer, Acris blanchardi, Pseudacris fouquettei (Spring Peeper, Green Frog, Cope's Gray Treefrog, Green Tree Frog, Gray Treefrog, Eastern Narrow-mouthed Toad, American Bullfrog, Pig Frog, Southern Leopard Frog, Gulf Coast Toad, Blanchard's Cricket Frog, Cajun Chorus Frog)
Location: Big Thicket National Preserve; Beaumont Unit, Big Thicket National Preserve; Years: 2010, 2011
The goal of this study is to monitor anuran occupancy using standard protocols while also recording salinities, as this area is below a salwater barrier on the Neches River and is susceptible to saltwater encroachment during tropical storm surges or periods of drought, which may impact anuran occupancy. We also added 20 sites north of the saltwater barrier as reference sites.
Mechanical disking to herbicide treatments in waterfowl managed ponds: The effect of management changes on amphibians: Pseudacris crucifer, Anaxyrus fowleri, Acris crepitans, Hyla cinerea, Gastrophryne carolinensis, Lithobates catesbeianus, Lithobates sphenocephalus (Spring Peeper, Fowler's Toad, Northern Cricket Frog, Green Tree Frog, Eastern Narrow-mouthed Toad, American Bullfrog, Southern Leopard Frog)
Location: Coldwater River National Wildlife Refuge; Various old catfish ponds on property; Years: 2009, 2010, 2011
The objective of this study is to assess the effects on amphibians of treating waterfowl managed ponds with herbicide. Previously, mechanical disking was used exclusively to control weeds in the ponds.

» View trends in occupancy

Anuran Occupancy Monitoring: Pseudacris crucifer, Lithobates clamitans, Hyla chrysoscelis, Gastrophryne carolinensis, Hyla squirella, Hyla cinerea, Lithobates catesbeianus, Lithobates grylio, Pseudacris fouquettei, Anaxyrus fowleri, Acris blanchardi, Incilius nebulifer, Lithobates sphenocephalus (Spring Peeper, Green Frog, Cope's Gray Treefrog, Eastern Narrow-mouthed Toad, Squirrel Treefrog, Green Tree Frog, American Bullfrog, Pig Frog, Cajun Chorus Frog, Fowler's Toad, Blanchard's Cricket Frog, Gulf Coast Toad, Southern Leopard Frog)
Location: South-central Louisiana, Lower Mississippi Valley; Atchafalaya Basin; Years: 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011
The primary goal here is to accomplish long-term monitoring of the diverse anuran assemblage in this large bottomland hardwood area. Additional research questions centered on the effects of changes in hydrology will also be addressed.

National Wildlife Health Center

No available projects in this region.

Pacific Northwest - Water

No available projects in this region.

Rocky Mountains - Water

No available projects in this region.

Southwest, Arizona - Biology

» View trends in occupancy

BANWR Occupancy Monitoring: Lithobates chiricahuensis (Chiricahua Leopard Frog)
Location: BANWR; BANWR; Years: 2007, 2008, 2009, 2010, 2011, 2012
Multi-species occupancy monitoring

Southwest - Water

No available projects in this region.

Midwest - Water

No available projects in this region.

South Central - Water

No available projects in this region.

Southeast - Water

No available projects in this region.

Northeast - Water

No available projects in this region.

National Headquarters

No available projects in this region.


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