Now showing items 51-70 of 83

    • Ocelot Leopardus pardalis in Belize: the impact of trap spacing and distance moved on density estimates 

      Dillon, A.; Kelly, M. J. (Cambridge University Press, 2007-10)
      We used remote cameras to obtain information on an elusive species and to examine the effects of different camera trapping methodologies on abundance estimates. We determined activity pattern, trail use, trap success, and ...
    • Offshore distribution of alewife, alosa-pseudoharengus, and blueback herring, alosa-aestivalis, along the atlantic coast 

      Neves, R. J. (National Marine Fisheries Service Scientific Publication Office, 1981)
      This study of the offshore distribution of alewife, Alosa pseudoharengus, and blueback herring, A. aestivalis, in the Atlantic Ocean was based on catch data collected over the 16-year period 1963-78 during bottom trawl ...
    • Ospreys Use Bald Eagle Nests in Chesapeake Bay Area 

      Therres, Glenn D.; Chandler, Sheri K. (Raptor Research Foundation, 1993)
      Ospreys (Pandion haliaetus) and Bald Eagles (Haliaeetus leucocephalus) share similar breeding habitat in the Chesapeake Bay area and elsewhere. The nests of these species are similar in size and appearance. Ospreys typically ...
    • Overcoming barriers in evaluating outbreaks of diarrheal disease in resource poor settings: assessment of recurrent outbreaks in Chobe District, Botswana 

      Alexander, Kathleen A.; Blackburn, Jason K (2013-08-26)
      Background Diarrheal illness remains a leading cause of global morbidity and mortality, with the majority of deaths occurring in children <5 years of age. Lack of resources often prohibits the evaluation of outbreak ...
    • Partner PhDs: dual careers in grad school and beyond 

      Homyack, J. A.; Gorman, T. A. (Ecological Society of America, 2009-04)
    • Population Status of a Cryptic Top Predator: An Island-Wide Assessment of Tigers in Sumatran Rainforests 

      Wibisono, Hariyo T.; Linkie, Matthew; Guillera-Arroita, Gurutzeta; Smith, Joseph A.; Sunarto; Pusparini, Wulan; Asriadi; Baroto, Pandu; Brickle, Nick; Dinata, Yoan; Gemita, Elva; Gunaryadi, Donny; Haidir, Iding A.; Herwansyah; Karina, Indri; Kiswayadi, Dedy; Kristiantono, Decki; Kurniawan, Harry; Lahoz-Monfort, Jose J.; Leader-Williams, Nigel; Maddox, Tom; Martyr, Deborah J.; Maryati; Nugroho, Agung; Parakkasi, Karmila; Priatna, Dolly; Ramadiyanta, Eka; Ramono, Widodo S.; Reddy, Goddilla V.; Rood, Ente J. J.; Saputra, Doddy Y.; Sarimudi, Ahmad; Salampessy, Adnun; Septayuda, Eka; Suhartono, Tonny; Sumantri, Ade; Susilo; Tanjung, Iswandri; Tarmizi; Yulianto, Koko; Yunus, Mohammad; Zulfahmi (PLOS, 2011-11-02)
      Large carnivores living in tropical rainforests are under immense pressure from the rapid conversion of their habitat. In response, millions of dollars are spent on conserving these species. However, the cost-effectiveness ...
    • Potential causes of mortality for horseshoe crabs (Limulus polyphemus) during the biomedical bleeding process 

      Hurton, L.; Berkson, J. (National Marine Fisheries Service Scientific Publication Office, 2006-04)
      Biomedical companies catch and bleed horseshoe crabs for the production of Limulus amebocyte lysate (LAL), a product used for protecting public health (Berkson and Shuster, 1999). LAL is a clotting agent, derived solely ...
    • Prevalence of Ingested Fish Hooks in Freshwater Turtles from Five Rivers in the Southeastern United States 

      Steen, David A.; Hopkins, Brittney Cole; Van Dyke, James U.; Hopkins, William A. (PLoS, 2014-03-12)
      Freshwater turtles may ingest baited fish hooks because many are opportunistic scavengers. Although the ingestion of fish hooks is known to be a source of mortality in multiple vertebrate groups, the prevalence of hook ...
    • Preventing Raptor Electrocutions in an Urban Environment 

      Dwyer, James F.; Mannan, R. William (Raptor Research Foundation, 2007)
      Electrocution of raptors on poles supporting overhead electric lines is a cause of concern in the United States. Techniques for modifying (i.e., retrofitting) potentially lethal poles to reduce electrocutions have been ...
    • prey morphology constrains the feeding ecology of an aquatic generalist predator 

      Willson, J. D.; Hopkins, W. A. (Ecological Society of America, 2011-03)
      Resource availability and accessibility are primary factors guiding the distribution and abundance of organisms. For generalists, prey availability reflects both prey abundance and differences in quality among prey taxa. ...
    • Prosomal-width-to-weight relationships in American horseshoe crabs (Limulus polyphemus): examining conversion factors used to estimate landings 

      Graham, L. J.; Botton, M. L.; Hata, D.; Loveland, R. E.; Murphy, B. R. (National Marine Fisheries Service Scientific Publication Office, 2009-04)
      Horseshoe crabs (Limulus polyphemus) are valued by many stakeholders, including the commercial fishing industry, biomedical companies, and environmental interest groups. We designed a study to test the accuracy of the ...
    • 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 ...
    • 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; 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 ...
    • 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) ...