USGS - science for a changing world

Amphibian Research and Monitoring Initiative

ARMI » Topics » Management

Management


Vernal pool
Larissa Bailey (Colorado State), USGS, FWS, and SCC volunteers building vernal pools at Patuxent NWR, to adaptively manage for climate change. Photo by: A. Green.

Only a few years ago, amphibians were rarely considered in the development and implementation of management plans. But now, it’s not uncommon to see amphibian populations as the primary targets of management activities.

ARMI scientists conduct research on the impacts of various traditional management actions on amphibians, and have worked with partners to develop and test novel management options specifically to benefit amphibians.

Important decisions are made every day on management and policy that affect multiple wildlife species. ARMI works with its partners in Federal and State agencies to develop processes for structuring their natural resource decisions to achieve their conservation objectives related to amphibians.

ARMI Products on Management

* USGS neither sponsors nor endorses non-USGS web sites; per requirement "3.4.1 Prohibition of Commercial Endorsement."
* PDF documents require Adobe Reader or Google Chrome Browser for viewing.

Content image.
BA Mosher  
This is an ARMI Product. Design- and model-based recommendations for detecting and quantifying an amphibian pathogen in environmental samples
Authors: Mosher BA, Huyvaert KP, Chestnut T, Kerby JL, Madison JD, Bailey LL | Date: 2017-12 | Outlet: Ecology and Evolution | Format: .PDF
Accurate pathogen detection is essential for developing management strategies to address emerging infectious diseases, an increasingly prominent threat to wildlife. Sampling for free-living pathogens outside of their hosts has benefits for inference and study efficiency, but is still uncommon. We used a laboratory experiment to evaluate the influences of pathogen concentration, water type, and qPCR inhibitors on the detection and quantification of Batrachochytrium dendrobatidis (Bd) using water filtration. We compared results pre- and post-inhibitor removal, and assessed inferential differences when single versus multiple samples were collected across space or time. We found that qPCR inhibition influenced both Bd detection and quantification in natural water samples, resulting in biased inferences about Bd occurrence and abundance. Biases in occurrence could be mitigated by collecting multiple samples in space or time, but biases in Bd quantification were persistent. Differences in Bd concentration resulted in variation in detection probability, indicating that occupancy modeling could be used to explore factors influencing heterogeneity in Bd abundance among samples, sites, or over time. Our work will influence the design of studies involving amphibian disease dynamics and studies utilizing environmental DNA (eDNA) to understand species distributions.

Content image.
P Bartelt  
This is an ARMI Product. Response of anurans to wetland restoration on a midwestern agricultural landscape
Authors: Bartelt P E, Klaver R W | Date: 2017-09-01 | Outlet: Journal of Herpetology 51:504-514 | Format: .PDF
Since the early 1990s, > 5,000 ha of historic wetlands (and adjacent prairie)
have been restored on the row-crop agricultural landscape of Winnebago County, Iowa, USA.
From 2008?2011, we surveyed 22 of these sites for probabilities of occupancy and colonization
by Boreal Chorus Frogs (BCF; Pseudacris maculata), Northern Leopard Frogs (NLF; Lithobates
pipiens), and American Toads (AT; Anaxyrus americanus). We used radio telemetry to measure
patterns of movement and habitat use by 22 NLF and 54 AT, and deployed biophysical models
in available habitats to estimate their physiological costs. BCF occupied 100% of restored
wetlands; NLF and AT occupied 59?91% and 71?89%, respectively, varying according to annual
weather conditions. BCF colonized new sites within a year; NLF and AT required 3 and 2 yr,
respectively.

Content image.
E. Muths  
This is an ARMI Product. Amphibian conservation: clarifications to comments from Andreone
Authors: Muths E, Fisher RN | Date: 2017 | Format: .PDF
We appreciate the review and comments from Andreone (2016) regarding our proposed alternative strategy for addressing the amphibian crisis. Andreone recognizes the utility of an incident command system approach but doubts the feasibility of implementation at an international level. We stated in our original article, however, that ‘The feasibility of our suggestion is debatable, but our point is that radically different approaches are necessary to effectively manage the largest extinction event in modern history’


Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://armi.usgs.gov/topic.php?topic=Management
Page Contact Information: ARMI Webmaster
Page Last Modified: Wednesday, November 22, 2017