Effects of experimental warming and nutrient enrichment on wetland communities at the Arctic’s edge

Authors: J M Davenport; L Fishback; Blake R Hossack
Contribution Number: 759

The disproportionate effects of warming for high-latitude, freshwater ecosystems has been well documented, but in some areas, changes have been further impacted by human-subsidized increases of waterfowl. To gain insight into how predicted changes in temperature and nutrient inputs might affect ecosystem function, we conducted a mesocosm experiment in the Canadian Subarctic with three levels of simulated goose enrichment and warming to measure changes in size and survival of larval wood frogs and boreal chorus frogs and primary productivity (phytoplankton and periphyton biomass). Our results highlight that the consequences of these rapid changes are non-linear and even non-intuitive, with species-specific consumer and ecosystem responses that depend on the magnitude of temperature and nutrient changes as well as community composition.

Publication details
Published Date: 2020-09
Outlet/Publisher: Hydrobiologia
Media Format:

ARMI Organizational Units:
Rocky Mountains, Northern - Biology
Climate Change; Species and their Ecology; Water
Place Names:
amphibians; climate; habitat alteration; land cover/land use; water quality
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