Wildlife Program

Publications

Filter Total Items: 272
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Year Published: 2014

Evidence for seasonal patterns in the relative abundance of avian influenza virus subtypes in blue-winged teal (Anas discors)

Seasonal dynamics of influenza A viruses (IAVs) are driven by host density and population immunity. Through an analysis of subtypic data for IAVs isolated from Blue-winged Teal (Anas discors), we present evidence for seasonal patterns in the relative abundance of viral subtypes in spring and summer/autumn.

Ramey, Andrew M.; Poulson, Rebecca L.; González-Reiche, Ana S.; Wilcox, Benjamin R.; Walther, Patrick; Link, Paul; Carter, Deborah L.; Newsome, George M.; Müller, Maria L.; Berghaus, Roy D.; Perez, Daniel R.; Hall, Jeffrey S.; Stallknecht, David E.
Evidence for seasonal patterns in the relative abundance of avian influenza virus subtypes in blue-winged teal (Anas discors); 2014; Article; Journal; Journal of Wildlife Diseases; Ramey, Andrew M.; Poulson, Rebecca L.; González-Reiche, Ana S.; Wilcox, Benjamin R.; Walther, Patrick; Link, Paul; Carter, Deborah L.; Newsome, George M.; Müller, Maria L.; Berghaus, Roy D.; Perez, Daniel R.; Hall, Jeffrey S.; Stallknecht, David E.

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Year Published: 2014

Melanin-based color of plumage: role of condition and of feathers' microstructure

Whether melanin-based colors honestly signal a bird's condition during the growth of feathers is controversial, and it is unclear if or how the physiological processes underlying melanogenesis or color-imparting structural feather microstructure may be adversely affected by condition. Here we report results from two experiments designed to measure...

D'Alba, Liliana; Van Hemert, Caroline R.; Spencer, Karen A.; Heidinger, Britt J.; Gill, Lisa; Evans, Neil P.; Monaghan, Pat; Handel, Colleen M.; Shawkey, Matthew D.
D'Alba, L., C. R. Van Hemert, K. A. Spencer, B. J. Heidinger, L. Gill, N. P. Evans, P. Monaghan, C. M. Handel, and M. D. Shawkey. 2014. Melanin-based color of plumage: Role of condition and of feathers' microstructure. Integrative and Comparative Biology 54(4):633-644. doi:10.1093/icb/icu094

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Year Published: 2014

Global research priorities to mitigate plastic pollution impacts on marine wildlife

Marine wildlife faces a growing number of threats across the globe, and the survival of many species and populations will be dependent on conservation action. One threat in particular that has emerged over the last 4 decades is the pollution of oceanic and coastal habitats with plastic debris. The increased occurrence of plastics in marine...

Vegter, Amanda C.; Barletta, Mário; Beck, Cathy A.; Borrero, Jose C.; Burton, Harry; Campbell, Marnie L.; Costa, Monica F.; Eriksen, Marcus; Eriksson, Cecilia; Estrades, Andres; Gilardi, Kirsten V.; Hardesty, Britta D.; do Sul, Juliana A. Ivar; Lavers, Jennifer L.; Lazar, Bojan; Lebreton, Laurent; Nichols, Wallace J.; Ribic, Christine A.; Ryan, Peter G.; Schuyler, Qamar A.; Smith, Stephen D. A.; Takada, Hideshige; Townsend, Kathy A.; Wabnitz, Colette C. C.; Wilcox, Chris; Young, Lindsay C.; Hamann, Mark
Vegter, A.C., Barletta, M., Beck, C., Borrero, J., Burton, H., Campbell, M.L., Costa, M.F., Eriksen, M., Eriksson, C., Estrades, A., Gilardi, K.V.K., Hardesty, B.D., Ivar do Sul, J.A., Lavers, J.L., Lazar, B., Lebreton, L., Nichols, W.J., Ribic, C.A., Ryan, P.G., Schuyler, Q.A., Smith, S.D.A., Takada, H., Townsend, K.A., Wabnitz, C.C.C., Wilsox, W., Young, LC., and Hamann, M., 2014, Global research priorities to mitigate plastic pollution impacts on marine wildlife: Endangered Species Research, v. 25, p. 225-247, http://dx.doi.org/10.3354/esr00623.

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Year Published: 2014

Changing Arctic ecosystems: ecology of loons in a changing Arctic

The U.S. Geological Survey (USGS) Changing Arctic Ecosystems (CAE) initiative informs key resource management decisions for Arctic Alaska by providing scientific information on current and future ecosystem response to a changing climate. From 2010 to 2014, a key study area for the USGS CAE initiative has been the Arctic Coastal Plain of northern...

Uher-Koch, Brian D.; Schmutz, Joel A.; Whalen, Mary E.; Pearce, John M.
Changing Arctic ecosystems: ecology of loons in a changing Arctic; 2014; FS; 2014-3093; Uher-Koch, Brian; Schmutz, Joel; Whalen, Mary; Pearce, John M.

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Year Published: 2014

Changing Arctic ecosystems: sea ice decline, permafrost thaw, and benefits for geese

Through the Changing Arctic Ecosystems (CAE) initiative, the U.S. Geological Survey (USGS) strives to inform resource management decisions for Arctic Alaska by providing scientific information on current and future ecosystem response to a warming climate. A key area for the USGS CAE initiative has been the Arctic Coastal Plain of northern Alaska....

Flint, Paul L.; Whalen, Mary E.; Pearce, John M.
Changing Arctic ecosystems: sea ice decline, permafrost thaw, and benefits for geese; 2014; FS; 2014-3088; Flint, Paul; Whalen, Mary; Pearce, John M.

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Year Published: 2014

Using sightability-adjusted brood-pair ratios to estimate waterfowl productivity

Historically, biologists used brood-pair ratios (BPRs) as an index to waterfowl productivity to help guide management decisions and evaluate conservation practices. However, BPRs are biased by imperfect detection probabilities, especially for broods. We conducted roadside surveys for breeding waterfowl pairs on 7–8 study sites in the springs...

Pagano, Anthony M.; Amundson, Courtney L.; Pieron, Matthew R.; Arnold, Todd W.; Kimmel, Timothy C.

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Year Published: 2014

Phenological adjustment in arctic bird species: relative importance of snow melt and ecological factors

Previous studies have documented advancement in clutch initiation dates (CIDs) in response to climate change, most notably for temperate-breeding passerines. Despite accelerated climate change in the Arctic, few studies have examined nest phenology shifts in arctic breeding species. We investigated whether CIDs have advanced for the most abundant...

Liebezeit, Joseph R.; Gurney, K. E. B.; Budde, Michael E.; Zack, Steve; Ward, David H.
Liebezeit, J. R., K. E. B. Gurney, M. Budde, S. Zack, and D. H. Ward. 2014. Phenological adjustment in arctic bird species: relative importance of snow melt and ecological factors. Polar Biology 37(9):1309-1320. doi:10.1007/s00300-014-1522-x

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Year Published: 2014

Survival of surf scoters and white-winged scoters during remigial molt

Quantifying sources and timing of variation in demographic rates is necessary to determine where and when constraints may exist within the annual cycle of organisms. Surf scoters (Melanitta perspicillata) and white-winged scoters (M. fusca) undergo simultaneous remigial molt during which they are flightless for >1 month. Molt could result in...

Uher-Koch, Brian D.; Esler, Daniel N.; Dickson, Rian D.; Hupp, Jerry W.; Evenson, Joseph R.; Anderson, Eric M.; Barrett, Jennifer; Schmutz, Joel A.
Uher-Koch, B. D., D. Esler, R. D. Dickson, J. W. Hupp, J. R. Evenson, E. M. Anderson, J. Barrett, and J. A. Schmutz. 2014. Survival of Surf Scoters and White-Winged Scoters during remigial molt. Journal of Wildlife Management 78(7):1189-1196. doi:10.1002/jwmg.774

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Year Published: 2014

Environmental and physiological influences to isotopic ratios of N and protein status in a montane ungulate in winter

Winter severity can influence large herbivore populations through a reduction in maternal proteins available for reproduction. Nitrogen (N) isotopes in blood fractions can be used to track the use of body proteins in northern and montane ungulates. We studied 113 adult female caribou for 13 years throughout a series of severe winters that reduced...

Gustine, David D.; Barboza, Perry S.; Adams, Layne G.; Wolf, Nathan B.
Environmental and physiological influences to isotopic ratios of N and protein status in a montane ungulate in winter; 2014; Article; Journal; PLoS One; Gustine, David D.; Barboza, Perry S.; Adams, Layne G.; Wolf, Nathan B.

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Year Published: 2014

Mapping and monitoring Mount Graham red squirrel habitat with Lidar and Landsat imagery

The Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) is an endemic subspecies located in the Pinaleño Mountains of southeast Arizona. Living in a conifer forest on a sky-island surrounded by desert, the Mount Graham red squirrel is one of the rarest mammals in North America. Over the last two decades, drought, insect...

Hatten, James R.
Mapping and monitoring Mount Graham red squirrel habitat with Lidar and Landsat imagery; 2014; Article; Journal; Ecological Modelling; Hatten, James R.

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Year Published: 2014

Multilocus phylogeography and systematic revision of North American water shrews (genus: Sorex)

North American water shrews, which have traditionally included Sorex alaskanus, S. bendirii, and S. palustris, are widely distributed through Nearctic boreal forests and adapted for life in semiaquatic environments. Molecular mitochondrial signatures for these species have recorded an evolutionary history with variable levels of regional...

Hope, Andrew G.; Panter, Nicholas; Cook, Joseph A.; Talbot, Sandra L.; Nagorsen, David W.
Multilocus phylogeography and systematic revision of North American water shrews (genus: Sorex); 2014; Article; Journal; Journal of Mammalogy; Hope, Andrew G.; Panter, Nicholas; Cook, Joseph A.; Talbot, Sandra L.; Nagorsen, David W.

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Year Published: 2014

A hierarchical model combining distance sampling and time removal to estimate detection probability during avian point counts

Imperfect detection during animal surveys biases estimates of abundance and can lead to improper conclusions regarding distribution and population trends. Farnsworth et al. (2005) developed a combined distance-sampling and time-removal model for point-transect surveys that addresses both availability (the probability that an animal is available...

Amundson, Courtney L.; Royle, J. Andrew; Handel, Colleen M.
A hierarchical model combining distance sampling and time removal to estimate detection probability during avian point counts; 2014; Article; Journal; The Auk; Amundson, Courtney L.; Royle, J. Andrew; Handel, Colleen M.