Forest and Rangeland Ecosystem Science Center

Publications

Filter Total Items: 1,755
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Year Published: 2021

Monitoring wetland water quality related to livestock grazing in amphibian habitats

Land use alteration such as livestock grazing can affect water quality in habitats of at-risk wildlife species. Data from managed wetlands are needed to understand levels of exposure for aquatic life stages and monitor grazing-related changes afield. We quantified spatial and temporal variation in water quality in wetlands occupied by threatened...

Smalling, Kelly; Rowe, Jennifer; Pearl, Christopher; Iwanowicz, Luke R.; Givens, Carrie E.; Anderson, Chauncey W.; McCreary, Brome; Adams, Michael J.

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Year Published: 2021

Yearly temperature fluctuations and survey speed influence road counts of wintering raptors

Globally, evaluation of population trends is the most pressing research need for many species of conservation concern. Road counts for birds of prey are useful for monitoring long‐term population trends and examining year‐to‐year variations in abundance. We examined data from 2155 road surveys conducted from 2001 to 2018 by community scientists...

McClure, Christopher J W; Rolek, Brian W.; Grove, Gregory W; Katzner, Todd E.

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Year Published: 2021

Shared functional traits explain synchronous changes in long‐term count trends of migratory raptors

AimAssessing long‐term shifts in faunal assemblages is important to understand the consequences of ongoing global environmental change. One approach to assess drivers of assemblage changes is to identify the traits associated with synchronous shifts in count trends among species. Our research identified traits influencing trends in 73 years...

Dumandan, Patricia Kaye T.; Bildstein, Keith L.; Goodrich, Laurie J.; Zaiats, Andrii; Caughlin, Trevor; Katzner, Todd E.

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Year Published: 2021

Performance of the ecosystem demography model (EDv2.2) in simulating gross primary production capacity and activity in a dryland study area

Dryland ecosystems play an important role in the global carbon cycle, including regulating the inter-annual global carbon sink. Dynamic global vegetation models (DGVMs) are essential tools that can help us better understand carbon cycling in different ecosystems. Currently, there is limited knowledge of the performance of these models in drylands...

Dashti, Hamid; Pandit, Karun; Glenn, Nancy F.; Shinneman, Douglas J.; Flerchinger, Gerald N.; Hudak, Andrew A.; de Graaf, Marie Anne; Flores, Alejandro N; Ustin, Susan L.; Ilangakoon, Nayani; Fellows, Aaron W.

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Year Published: 2021

From forests to fish: Mercury in mountain lake food webs influenced by factors at multiple scales

Mountain lakes, while seemingly pristine, have been subjected to historical fish stocking practices and exposure to atmospherically deposited contaminants like mercury. Mercury bioaccumulation in these ecosystems varies widely due to strong environmental gradients, and there are complex, hierarchical factors that affect mercury transport and...

Chiapella, Ariana M.; Eagles-Smith, Collin; Strecker, Angela L

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Year Published: 2021

It’s complicated…environmental DNA as a predictor of trout and char abundance in streams

The potential to provide inferences about fish abundance from environmental (e)DNA samples has generated great interest. However, the accuracy of these abundance estimates is often low and variable across species and space. A plausible refinement is the use of common aquatic habitat monitoring data to account for attributes that influence eDNA...

Sepulveda, Adam J.; Al-Chokhachy, Robert; Laramie, Matthew; Crapster, Kyle; Knotek, Ladd; Miller, Brian T.; Zale, Alexander V.; Pilliod, David

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Year Published: 2021

From satellites to frogs: Quantifying ecohydrological change, drought mitigation, and population demography in desert meadows

Increasing frequency and severity of droughts have motivated natural resource managers to mitigate harmful ecological and hydrological effects of drought, but drought mitigation is an emerging science and evaluating its effectiveness is difficult. We examined ecohydrological responses of drought mitigation actions aimed at conserving populations...

Pilliod, David; Hausner, Mark B.; Scherer, Rick D.

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Year Published: 2021

Nowhere to hide: The importance of instream cover for stream‐living Coastal Cutthroat Trout during seasonal low flow

Through their multiple functions, refuges may be important for stream‐living fishes, particularly during stressful events such as seasonal low flow or drought. Coastal Cutthroat Trout Oncorhynchus clarkii clarkii is an ideal study organism to understand the importance of refuge. During seasonal low flow, lower water levels limit access...

Penaluna, Brooke E; Dunham, Jason B.; Andersen, Heidi V

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Year Published: 2021

The snag’s the limit: Habitat selection modeling for the western purple martin in a managed forest landscape

The western purple martin (Progne subis arboricola), an avian insectivore, is a species of conservation concern throughout the Pacific Northwest. Compared to the well-studied eastern subspecies (Progne subis subis), little is known of the life history and biology of the western subspecies. Availability of breeding habitat is believed to be a major...

Sherman, Lorelle M.; Hagar, Joan

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Year Published: 2021

High frequency of lead exposure in the population of an endangered Australian top predator, the Tasmanian wedge-tailed eagle (Aquila audax fleayi)

Lead poisoning, mainly through incidental ingestion of lead ammunition in carcasses, is a threat to scavenging and predatory bird species worldwide. In Australia, shooting for animal control is widespread, and a range of native scavenging species are susceptible to lead exposure. However, the prevalence of lead exposure in Australia's scavenging...

Pay, James M.; Katzner, Todd E.; Hawkins, Clare E.; Koch, Amelia J.; Wiersm, Jason M.; Brown, William E.; Mooney, Nick J.; Cameron, Elissa Z.

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Year Published: 2021

Relative abundance of coyotes (Canis latrans) influences gray fox (Urocyon cinereoargenteus) occupancy across the eastern United States

Gray fox (Urocyon cinereoargenteus (Schreber, 1775)) populations in portions of the eastern United States have experienced declines whose trajectories differ from those of other mesocarnivore populations. One hypothesis is that gray fox declines may result from interspecific interactions, particularly competition with abundant coyotes (Canis...

Egan, Michael E.; Day, Casey C.; Katzner, Todd E.; Zollner, Patrick A.