Zobrazeno 1 - 10
of 13
pro vyhledávání: '"R. Bradford Allen"'
Autor:
Glen Joseph Parsons, Katherine R. Mehl, Daniel G. McAuley, R. Bradford Allen, Martin Patenaude-Monette, Jean-François Giroux, Mark L. Gloutney, Scott G. Gilliland, Eric T. Reed, Nic R. McLellan, G. Randy Milton
Publikováno v:
The Journal of Wildlife Management. 85:1646-1655
Autor:
Jeffrey S Hall, Robin E Russell, J Christian Franson, Catherine Soos, Robert J Dusek, R Bradford Allen, Sean W Nashold, Joshua L TeSlaa, Jón Eínar Jónsson, Jennifer R Ballard, Naomi Jane Harms, Justin D Brown
Publikováno v:
PLoS ONE, Vol 10, Iss 12, p e0144524 (2015)
Wild waterfowl are primary reservoirs of avian influenza viruses (AIV). However the role of sea ducks in the ecology of avian influenza, and how that role differs from freshwater ducks, has not been examined. We obtained and analyzed sera from North
Externí odkaz:
https://doaj.org/article/b9e6f441dd0d4c91bf77c5f3ed961616
Autor:
Joelle M. Mangelinckx, Erik J. Blomberg, R. Bradford Allen, Samantha R. B. Davis, Kelsey Sullivan
Publikováno v:
The Auk. 135:933-948
Theory suggests that animals should select resources on the basis of perceived fitness benefits, and avoid other available resources that may result in fitness costs. However, resource selection is both a scale- and a life-stage-specific process, in
Autor:
Robert J. Dusek, Daniel A. Grear, R. Bradford Allen, Jeffrey S. Hall, Sean W. Nashold, Joshua L. TeSlaa
Publikováno v:
Ecological Applications
Waterfowl and shorebirds are the primary hosts of influenza A virus (IAV), however, in most surveillance efforts, large populations of birds are not routinely examined; specifically marine ducks and other birds that reside predominately on or near th
Autor:
R. Bradford Allen, Joelle M. Mangelinckx, Samantha R. B. Davis, Erik J. Blomberg, Kelsey Sullivan
Publikováno v:
The Journal of Wildlife Management. 82:1263-1272
Autor:
R. Bradford Allen, Richard P. Schauffler, Jordan Chalfant, Linda J. Welch, Glen H. Mittelhauser
Publikováno v:
Waterbirds. 39:57-67
The status and trends of Maine's island-nesting Herring Gull (Larus argentatus) and Great Blackbacked Gull (L. marinus) populations have changed dramatically over the last century. Aerial photographs were used to count nesting Herring and Great Black
Publikováno v:
Northeastern Naturalist. 26:656
Although most species of sea ducks are poorly studied, much is known about the population dynamics of the American race of Somateria mollissma dresseri (Common Eider). Although Common Eiders typically have high adult survival and low recruitment rate
Autor:
Justin C. Brown, Joshua L. TeSlaa, Sean W. Nashold, Jennifer R. Ballard, R. Bradford Allen, Naomi Jane Harms, Jón Einar Jónsson, J. Christian Franson, Robin E. Russell, Catherine Soos, Robert J. Dusek, Jeffrey S. Hall
Publikováno v:
PLoS ONE
PLoS ONE, Vol 10, Iss 12, p e0144524 (2015)
PLoS ONE, Vol 10, Iss 12, p e0144524 (2015)
Wild waterfowl are primary reservoirs of avian influenza viruses (AIV). However the role of sea ducks in the ecology of avian influenza, and how that role differs from freshwater ducks, has not been examined. We obtained and analyzed sera from North
Publikováno v:
Northeastern Naturalist. 18:73-86
Productivity is a primary parameter used in waterfowl population models; however, few long-term metrics of reproductive output exist for eastern North American waterfowl. We used 52 years of brood survey data from throughout Maine to determine mean C
Autor:
Julie C. Ellis, Stephen W. Kress, Neil M. Burgess, Catherine I. Otorowski, David C. Evers, R. Bradford Allen, Linda J. Welch, Steven E. Mierzykowski, Robert J. Taylor, Alexander L. Bond, C. Scott Hall, Anthony W. Diamond, M. Wing Goodale
Publikováno v:
EcoHealth. 5:409-425
From existing databases, we compiled and evaluated 604 total mercury (Hg) levels in the eggs and blood of 17 species of marine foraging birds from 35 Gulf of Maine islands to provide baseline data and to determine the best tissue, age class, and spec