Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Margaret R. Petersen"'
Autor:
Diana V. Solovyeva, Sarah A. Sonsthagen, Abby N. Powell, Christy L. Haughey, Margaret R. Petersen, Matthew G. Sexson
Publikováno v:
Conservation Genetics. 21:175-179
We examined the genetic structure of the threatened spectacled eider 14–18 years after the initial assessment to evaluate the influence of population recovery on diversity. Concordant with the initial assessment, spectacled eiders were highly struc
Autor:
Christopher J. Latty, Tuula E. Hollmén, Margaret R. Petersen, Abby N. Powell, Russel D. Andrews
Publikováno v:
The Condor. 120:185-187
Publikováno v:
The Condor. 118:463-476
Shifts in the distribution of benthivorous predators provide an indication of underlying environmental changes in benthic-mediated ecosystems. Spectacled Eiders (Somateria fischeri) are benthivorous sea ducks that spend the nonbreeding portion of the
Autor:
Abby N. Powell, Tuula E. Hollmén, Christopher J. Latty, Margaret R. Petersen, Russel D. Andrews
Publikováno v:
The Condor. 118:489-501
Some statistics in “Biochemical and clinical responses of Common Eiders to implanted satellite transmitters” were miscalculated due to missing data. We provide corrected values for the affected variables. Corrected data did not affect the conclus
Publikováno v:
North American Fauna. 81:1-41
Spectacled eider Somateria fischeri numbers have declined and they are considered threatened in accordance with the US Endangered Species Act throughout their range. We synthesized the available information for spectacled eiders to construct determin
Publikováno v:
Journal of Avian Biology. 46:538-549
Islands provide refuges for populations of many species where they find safety from predators, but the introduction of predators frequently results in elimination or dramatic reductions in island-dwelling organisms. When predators are removed, re-col
Autor:
Sandra L. Talbot, Robert E. Wilson, Sarah A. Sonsthagen, G. Vernon Byrd, Margaret R. Petersen, Jeffrey C. Williams, Kevin G. McCracken
Publikováno v:
The Condor. 115:28-39
Since the late 18th century bird populations residing in the Aleutian Archipelago have been greatly reduced by introduced arctic foxes (Alopex lagopus). We analyzed data from microsatellite, nuclear intron, and mitochondrial (mtDNA) loci to examine t
Publikováno v:
The Auk. 129:399-408
In northern marine habitats, the presence or absence of sea ice results in variability in the distribution of many species and the quality and availability of pelagic winter habitat. To understand the effects of ice on intra- and inter-annual winter
Autor:
J. Christian Franson, Andrew B. Reeves, Hon S. Ip, Margaret R. Petersen, Andrew M. Ramey, John M. Pearce
Publikováno v:
Archives of Virology. 156:1813-1821
Avian influenza virus (AIV) prevalence and sequence data were analyzed for Steller’s eiders (Polysticta stelleri) to assess the role of this species in transporting virus genes between continents and maintaining a regional viral reservoir with symp