Now showing items 93-112 of 120

    • Quantifying climate sensitivity and climate-driven change in North American amphibian communities 

      Miller, David A. W.; Grant, Evan H. Campbell; Muths, Erin; Amburgey, Staci M.; Adams, Michael J.; Joseph, Maxwell B.; Waddle, J. Hardin; Johnson, Pieter T. J.; Ryan, Maureen E.; Schmidt, Benedikt R.; Calhoun, Daniel L.; Davis, Courtney L.; Fisher, Robert N.; Green, David M.; Hossack, Blake R.; Rittenhouse, Tracy A. G.; Walls, Susan C.; Bailey, Larissa L.; Cruickshank, Sam S.; Fellers, Gary M.; Gorman, Thomas A.; Haas, Carola A.; Hughson, Ward; Pilliod, David S.; Price, Steven J.; Ray, Andrew M.; Sadinski, Walt; Saenz, Daniel; Barichivich, William J.; Brand, Adrianne; Brehme, Cheryl S.; Dagit, Rosi; Delaney, Katy S.; Glorioso, Brad M.; Kats, Lee B.; Kleeman, Patrick M.; Pearl, Christopher A.; Rochester, Carlton J.; Riley, Seth P. D.; Roth, Mark; Sigafus, Brent H. (2018-09-25)
      Changing climate will impact species' ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited ...
    • Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines 

      Grant, Evan H. Campbell; Miller, David A. W.; Schmidt, Benedikt R.; Adams, Michael J.; Amburgey, Staci M.; Chambert, Thierry; Cruickshank, Sam S.; Fisher, Robert N.; Green, David M.; Hossack, Blake R.; Johnson, Pieter T. J.; Joseph, Maxwell B.; Rittenhouse, Tracy A. G.; Ryan, Maureen E.; Waddle, J. Hardin; Walls, Susan C.; Bailey, Larissa L.; Fellers, Gary M.; Gorman, Thomas A.; Ray, Andrew M.; Pilliod, David S.; Price, Steven J.; Saenz, Daniel; Sadinski, Walt; Muths, Erin (Springer Nature, 2016-05-23)
      Since amphibian declines were first proposed as a global phenomenon over a quarter century ago, the conservation community has made little progress in halting or reversing these trends. The early search for a "smoking gun" ...
    • Rapid Life-History Diversification of an Introduced Fish Species across a Localized Thermal Gradient 

      Zhu, Fengyue; Rypel, Andrew L.; Murphy, Brian R.; Li, Zhongjie; Zhang, Tanglin; Yuan, Jing; Guo, Zhiqiang; Tang, Jianfeng; Liu, Jiashou (PLOS, 2014-02-04)
      Climatic variations are known to engender life-history diversification of species and populations at large spatial scales. However, the extent to which microgeographic variations in climate (e.g., those occurring within a ...
    • Remaining populations of an upland stream fish persist in refugia defined by habitat features at multiple scales 

      Dunn, C.G.; Angermeier, P.L. (Blackwell Publishing Ltd, 2018-12-17)
      Aim: Conserving stream biota could require strategies that preserve habitats conveying resistance to ecological impacts of changing land use and climate. Retrospective analyses of species’ responses to anthropogenic ...
    • Return Rates of Aluminum Versus Plastic Leg Bands from Electrocuted Harris's Hawks (Parabuteo Unicinctus) 

      Dwyer, James F.; Mannan, R. William (Raptor Research Foundation, 2009)
      Ecological research programs investigating dispersal, migration, habitat selection, social structure, survival, reproductive success, and population size depend on the ability to identify individual study animals on multiple ...
    • Roosting and Foraging Social Structure of the Endangered Indiana Bat (Myotis sodalis) 

      Silvis, Alexander; Kniowski, Andrew B.; Gehrt, Stanley D.; Ford, W. Mark (PLOS, 2014-05-09)
      Social dynamics are an important but poorly understood aspect of bat ecology. Herein we use a combination of graph theoretic and spatial approaches to describe the roost and social network characteristics and foraging ...
    • Seeing the Forest through the Trees: Considering Roost-Site Selection at Multiple Spatial Scales 

      Jachowski, David S.; Rota, Christopher T.; Dobony, Christopher A.; Ford, W. Mark; Edwards, John W. (PLOS, 2016-03-30)
      Conservation of bat species is one of the most daunting wildlife conservation challenges in North America, requiring detailed knowledge about their ecology to guide conservation efforts. Outside of the hibernating season, ...
    • Senescence and carryover effects of reproductive performance influence migration, condition, and breeding propensity in a small shorebird 

      Weithman, Chelsea; Gibson, Daniel; Hunt, Kelsi; Frierich, Meryl; Fraser, James; Karpanty, Sarah M.; Catlin, Daniel (Wiley, 2017-11-15)
      Breeding propensity, the probability that an animal will attempt to breed each year, is perhaps the least understood demographic process influencing annual fecundity. Breeding propensity is ecologically complex, as ...
    • Serum Immune-Related Proteins are Differentially Expressed during Hibernation in the American Black Bear 

      Chow, Brian A.; Donahue, Seth W.; Vaughan, Michael R.; McConkey, Brendan; Vijayan, Mathilakath M. (PLOS, 2013-06-25)
      Hibernation is an adaptation to conserve energy in the face of extreme environmental conditions and low food availability that has risen in several animal phyla. This phenomenon is characterized by reduced metabolic rate ...
    • Socrates Opens a Pandora’s Box of Northern Snakehead Issues 

      Orth, Donald J. (American Fisheries Society, 2019-08-01)
      Although the origin, distribution, abundance, and spread of the Northern Snakehead Channa argus in the Potomac River have been studied, management and control plans for other invasive species are increasingly contested in ...
    • Space Use and Habitat Selection by Resident and Transient Red Wolves (Canis rufus) 

      Hinton, Joseph W.; Proctor, Christine; Kelly, Marcella J.; van Manen, Frank T.; Vaughan, Michael R.; Chamberlain, Michael J. (PLOS, 2016-12-21)
      Recovery of large carnivores remains a challenge because complex spatial dynamics that facilitate population persistence are poorly understood. In particular, recovery of the critically endangered red wolf (Canis rufus) ...
    • Spatiotemporal Variation and the Role of Wildlife in Seasonal Water Quality Declines in the Chobe River, Botswana 

      Alexander, Kathleen A.; Fox, J. Tyler (PLOS, 2015-10-13)
      Sustainable management of dryland river systems is often complicated by extreme variability of precipitation in time and space, especially across large catchment areas. Understanding regional water quality changes in ...
    • Spatiotemporal Variation in Environmental Vibrio cholerae in an Estuary in Southern Coastal Ecuador 

      Ryan, Sadie J.; Stewart-Ibarra, Anna M.; Ordóñez-Enireb, Eunice; Chu, Winnie; Finkelstein, Julia L.; King, Christine A.; Escobar, Luis E.; Lupone, Christina; Heras, Froilan; Tauzer, Erica; Waggoner, Egan; James, Tyler G.; Cárdenas, Washington B.; Polhemus, Mark (MDPI, 2018-03-10)
      Cholera emergence is strongly linked to local environmental and ecological context. The 1991–2004 pandemic emerged in Perú and spread north into Ecuador’s El Oro province, making this a key site for potential re-emergence. ...
    • Species, sex and geo-location identification of seized tiger (Panthera tigris tigris) parts in Nepal—A molecular forensic approach 

      Karmacharya, Dibesh; Sherchan, Adarsh M.; Dulal, Santosh; Manandhar, Prajwol; Manandhar, Sulochana; Joshi, Jyoti; Bhattarai, Susmita; Bhatta, Tarka R.; Awasthi, Nagendra; Sharma, Ajay N.; Bista, Manisha; Silwal, Nawa R.; Pokharel, Pravin; Lamichhane, Rom R.; Sharma, Netra; Llewellyn, Bronwyn; Wultsch, Claudia; Kelly, Marcella J.; Gour, Digpal; Waits, Lisette; Hero, Jean-Marc; Hughes, Jane (PLOS, 2018-08-23)
      Tiger (Panthera tigris) populations are in danger across their entire range due to habitat loss, poaching and the demand for tiger parts. The Bengal tiger (Panthera tigris tigris) is an endangered apex predator with a ...
    • species-area relationships for stream fishes 

      Angermeier, P. L.; Schlosser, I. J. (Ecological Society of America, 1989-10)
      We sampled riffles and pool habitats of small streams in Minnesota, Illinois, and Panama to examine variation in species-area relationships within and between the respective fish faunas. For six of the seven steams studies, ...
    • Species-specific variations in reproductive traits of three yellow catfish species (Pelteobagrus spp.) in relation to habitats in the Three Gorges Reservoir, China 

      Liao, Chuansong; Chen, Sibao; Guo, Zhiqiang; Ye, Shaowen; Zhang, Tanglin; Li, Zhongjie; Murphy, Brian R.; Liu, Jiashou (PLOS, 2018-07-16)
      The reproductive biology of three yellow catfish congeners was studied in the Three Gorges Reservoir of the Yangtze River, China. We compared reproductive traits among the lentic, transitional, and lotic zones. A total of ...
    • Spontaneous Magnetic Alignment by Yearling Snapping Turtles: Rapid Association of Radio Frequency Dependent Pattern of Magnetic Input with Novel Surroundings 

      Landler, L; Painter, MS; Youmans, PW; Hopkins, WA; Phillips, JB (PLOS, 2015-05-15)
      We investigated spontaneous magnetic alignment (SMA) by juvenile snapping turtles using exposure to low-level radio frequency (RF) fields at the Larmor frequency to help characterize the underlying sensory mechanism. ...
    • Subordinate Males Sire Offspring in Madagascar Fish-eagle (Haliaeetus Vociferoides) Polyandrous Breeding Groups 

      Tingay, Ruth E.; Culver, Melanie; Hallerman, Eric M.; Fraser, James D.; Watson, Richard T. (Raptor Research Foundation, 2002)
      The island endemic Madagascar Fish-Eagle (Haliaeetus vociferoides) is one of the most endangered birds of prey. Certain populations in west-central Madagascar sometimes exhibit a third, and sometimes a fourth, adult involved ...
    • Summary results of the 2014-2015 DARPA Chikungunya challenge 

      Del Valle, Sara Y.; McMahon, Benjamin H.; Asher, Jason; Hatchett, Richard; Lega, Joceline C.; Brown, Heidi E.; Leany, Mark E.; Pantazis, Yannis; Roberts, David J.; Moore, Sean; Peterson, A Townsend; Escobar, Luis E.; Qiao, Huijie; Hengartner, Nicholas W.; Mukundan, Harshini (2018-05-30)
      Abstract Background: Emerging pathogens such as Zika, chikungunya, Ebola, and dengue viruses are serious threats to national and global health security. Accurate forecasts of emerging epidemics and their ...
    • The application of microsatellite DNA markers for forensic analysis of koi carp (Cyprinus carpio) 

      Grobler, J. P.; Kotze, A.; Swart, H.; Hallerman, Eric M. (Academy of Science of South Africa, 2005)
      We describe the use of microsatellite DNA markers, previously developed for common carp, to investigate a forensic case involving ornamental koi carp. Two South African breeders offered koi strains for sale, which a third ...