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Year Published: 2018

Extinction risk and conservation options for Maui Parrotbill, an endangered Hawaiian honeycreeper

Extinction rates for island birds around the world have been historically high. For forest passerines, the Hawaiian archipelago has suffered some of the highest extinction rates and reintroduction is a conservation tool that can be used to prevent the extinction of some of the remaining endangered species. Population viability analyses can be used...

Mounce, Hanna L.; Warren, Christopher C.; McGowan, Conor P.; Paxton, Eben H.; Groombridge, J.J.

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Year Published: 2018

Riparian defoliation by the invasive green alder sawfly influences terrestrial prey subsidies to salmon streams

Invasive species in riparian forests are unique as their effects can transcend ecosystem boundaries via stream‐riparian linkages. The green alder sawfly (Monsoma pulveratum) is an invasive wasp whose larvae are defoliating riparian thin‐leaf alder (Alnus tenuifolia) stands across southcentral Alaska. To test the hypothesis that riparian...

Roon, David A.; Wipfli, Mark S.; Kruse, James J.

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Year Published: 2018

Evidence for exposure to selenium by breeding interior snowy plovers (Charadrius nivosus) in saline systems of the Southern Great Plains

Interior snowy plover (Charadrius nivosus) population declines and deteriorating conditions throughout the Southern Great Plains (SGP) of Texas, New Mexico, and Oklahoma may be linked to environmental contaminants. Concentrations of V, As, Cd, Pb, and Se were quantified in breeding snowy plover blood, feathers (5th primary; P5), and potential prey...

Ashbaugh, H.M.; Conway, Warren C.; Haukos, David A.; Collins, D. P.; Comer, C. E.; French, A. D.
Ashbaugh, H.M., Conway, W.C., Haukos, D.A. et al. Ecotoxicology (2018) 27: 703. https://doi.org/10.1007/s10646-018-1952-2

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Year Published: 2018

The influence of nutrients from carcasses of sea lamprey (Petromyzon marinus) on larval growth and spawner abundance

Migrations of anadromous sea lamprey (Petromyzon marinus) from marine ecosystems serve as vectors of nutrients into freshwater food webs. Larval sea lamprey reside in streams for 6–8 years as deposit feeders before metamorphosing into juveniles and migrating to the ocean. Previous work has shown that carcass nutrients, which result from the death...

Weaver, Daniel M.; Coghlan, Stephen M.; Zydlewski, Joseph D.

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Year Published: 2018

Assessment of Alaska rain-on-snow events using dynamical downscaling

The ice formed by cold-season rainfall or rain on snow (ROS) has striking impacts on the economy and ecology of Alaska. An understanding of the atmospheric drivers of ROS events is required to better predict them and plan for environmental change. The spatially/temporally sparse network of stations in Alaska makes studying such events challenging...

Bieniek, Peter A.; Bhatt, Uma S.; Walsh, John E.; Lader, Rick; Griffith, Brad; Roach, Jennifer K.; Thoman, Richard L.

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Year Published: 2018

Examination of multiple working hypotheses to address reproductive failure in reintroduced Whooping Cranes

Understanding multiple challenges that restrict conservation success is a central task of applied ecology, especially when resources are limited and actions are expensive, such as with reintroduction programs. Simultaneous consideration of multiple hypotheses can expedite identification of factors that most limit conservation success. Since 2001,...

Barzen, Jeb A.; Converse, Sarah J.; Adler, Peter H.; Lacy, Anne E; Gray, Elmer; Gossens, Andrew

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Year Published: 2018

Evaluation of targeted and untargeted effects-based monitoring tools to assess impacts of contaminants of emerging concern on fish in the South Platte River, CO

Rivers in the arid Western United States face increasing influences from anthropogenic contaminants due to population growth, urbanization, and drought. To better understand and more effectively track the impacts of these contaminants, biologically-based monitoring tools are increasingly being used to complement routine chemical monitoring....

Ekman, Drew R.; Keteles, Kristen; Beihoffer, Jon; Cavallin, Jenna E.; Dahlin, Kenneth; Davis, John M.; Jastrow, Aaron; Lazorchak, James M.; Mills, Marc A.; Murphy, Mark; Nguyen, David; Vajda, Alan M.; Villeneuve, Daniel L.; Winkelman, Dana L.; Collette, Timothy W.
Drew R. Ekman, Kristen Keteles, Jon Beihoffer, Jenna E. Cavallin, Kenneth Dahlin, John M. Davis, Aaron Jastrow, James M. Lazorchak, Marc A. Mills, Mark Murphy, David Nguyen, Alan M. Vajda, Daniel L. Villeneuve, Dana L. Winkelman, Timothy W. Collette, Evaluation of targeted and untargeted effects-based monitoring tools to assess impacts of contaminants of emerging concern on fish in the South Platte River, CO, Environmental Pollution, Volume 239, 2018, Pages 706-713, ISSN 0269-7491, https://doi.org/10.1016/j.envpol.2018.04.054.

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Year Published: 2018

Food web contaminant dynamics of a large Atlantic Slope river: Implications for common and imperiled species

Persistent and bioaccumulative contaminants often reach concentrations that threaten aquatic life by causing alterations in organism behavior and development, disruption of biological processes, reproductive abnormalities, and mortality. The objectives of this research were to determine the aquatic food web structure and trophic transfer and...

Kwak, Thomas J.; Penland, Tiffany N.; Grieshaber, Casey A.; Cope, W. Gregory; Heise, Ryan J.; Sessions, Forrest W.
Tiffany N. Penland, Casey A. Grieshaber, Thomas J. Kwak, W. Gregory Cope, Ryan J. Heise, Forrest W. Sessions, Food web contaminant dynamics of a large Atlantic Slope river: Implications for common and imperiled species, Science of The Total Environment, Volume 633, 2018, Pages 1062-1077

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Year Published: 2018

Quantifying population-level effects of water temperature, flow velocity and chemical-induced reproduction depression: A simulation study with smallmouth bass

Evaluating stochastic abiotic factors and their combined effects on fish and wildlife populations have been challenging in environmental sciences. Contributing to this challenge is the paucity of data describing how observations made on individuals related to exposure to chemical compounds ultimately effect population vital rates, and how this...

Wagner, Tyler; Blazer, Vicki S.; Yan Li
Yan Li, Vicki S. Blazer, Tyler Wagner, Quantifying population-level effects of water temperature, flow velocity and chemical-induced reproduction depression: A simulation study with smallmouth bass, Ecological Modelling, Volume 384, 2018, Pages 63-74

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Year Published: 2018

Landscape composition mediates movement and habitat selection in bobcats (Lynx rufus): Implications for conservation planning

The analysis of individual movement choices can be used to better understand population-level resource selection and inform management.

Abouelezz, Hanem; Donovan, Therese M.; Mickey, Ruth M.; Murdock, James N.; Freeman, Mark; Royar, Kim
Abouelezz, H.G., Donovan, T.M., Mickey, R.M. et al. Landscape Ecol (2018) 33: 1301. https://doi.org/10.1007/s10980-018-0654-8

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Year Published: 2018

Implicit decision framing as an unrecognized source of confusion in endangered species classification

Legal classification of species requires scientific and values‐based components, and how those components interact depends on how people frame the decision. Is classification a negotiation of trade‐offs, a decision on how to allocate conservation efforts, or simply a comparison of the biological status of a species to a legal standard? The answers...

Cummings, Jonathan; Converse, Sarah J.; Smith, David R.; Morey, Steve; Runge, Michael C.

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Year Published: 2018

Survival and cause-specific mortality of translocated female mule deer in southern New Mexico, USA

Context: Many mule deer (Odocoileus hemionus) populations in New Mexico have failed to recover from previous population declines, while some populations near urban areas have increased, resulting in more frequent human–wildlife conflicts. Translocations were used in an effort to simultaneously reduce an urban mule deer population and augment...

Cain, James W.; Ashling, Jana B.; Liley, Stewart