Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Alan D. Afton"'
Autor:
Jón Einar Jónsson, Alan D. Afton
Publikováno v:
Ecology and Evolution, Vol 6, Iss 21, Pp 7656-7670 (2016)
Abstract Physical exertion during growth can affect ultimate size and density of skeletal structures. Such changes from different exercise regimes may explain morphological differences between groups, such as those exhibited by lesser snow geese (Che
Externí odkaz:
https://doaj.org/article/15f5e92ebe0d4c39a834992fd2d4ad1a
Publikováno v:
Wildlife Society Bulletin. 44:5-14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7002444be61bfc3681695846d3ec0588
https://doi.org/10.1002/wsb.1076
https://doi.org/10.1002/wsb.1076
Autor:
Scott A. Petrie, Mark A. Mitchell, Alan D. Afton, Glenn H. Olsen, Shannon S. Badzinski, Michael L. Schummer
Publikováno v:
The Journal of Wildlife Management. 82:1252-1262
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea176d8253bdde385dc1995c30b704bd
https://doi.org/10.1002/jwmg.21478
https://doi.org/10.1002/jwmg.21478
Autor:
Michael J Anteau, Alan D Afton
Publikováno v:
PLoS ONE, Vol 6, Iss 1, p e16029 (2011)
Animals frequently undergo periods when they accumulate lipid reserves for subsequent energetically expensive activities, such as migration or breeding. During such periods, daily lipid-reserve dynamics (DLD) of sentinel species can quantify how land
Externí odkaz:
https://doaj.org/article/40baf89b06514965ab394086bc8c0743
Publikováno v:
The American Midland Naturalist. 178:203-214
Home range size, location, and movements between home ranges may differ markedly within species. Some populations of Bald Eagles breed in summer and move south in winter, whereas others breed in winter and move north in summer, while even others stay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0116fc30b1cc00c365b52ee46d2c37a6
https://doi.org/10.1674/0003-0031-178.2.203
https://doi.org/10.1674/0003-0031-178.2.203
Publikováno v:
The Journal of Wildlife Management. 81:1142-1148
We recently analyzed long-term (1951–2011) continental band-recovery data from lesser scaup (Aythya affinis) and demonstrated that harvest rates declined through time, but annual survival rates exhibited no such trends; moreover, annual harvest and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::223b57cb71742115c2da5e47c3891f52
https://doi.org/10.1002/jwmg.21315
https://doi.org/10.1002/jwmg.21315
Publikováno v:
Journal of Raptor Research. 50:301-304
Determinacion Morfometrica Del Sexo de Pollos Del Primer Ano de Haliaeetus leucocephalus En Luisiana Haliaeetus leucocephalus es una especie con plumaje monomorfico pero sexualmente dimorfica en cuanto al tamano, siendo las hembras tipicamente de may
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20dba7ede5a3d0219406d9386cf72cf8
https://doi.org/10.3356/jrr-15-60.1
https://doi.org/10.3356/jrr-15-60.1
Autor:
Mark A. Mitchell, Kevin J. Jacobs, Glenn H. Olsen, Alan D. Afton, Michael L. Schummer, Shannon S. Badzinski, Michael A. Johnson, Taylor A. Finger, Michael L. Szymanski, Scott A. Petrie
Publikováno v:
The Journal of Wildlife Management. 80:1437-1449
Identifying environmental metrics specific to lesser scaup (Aythya affinis; scaup) spring migration chronology may help inform development of conservation, management and population monitoring. Our objective was to determine how environmental conditi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c8195a7c96366ac2d0a78f2f352ccee
https://doi.org/10.1002/jwmg.21131
https://doi.org/10.1002/jwmg.21131
Publikováno v:
The Journal of Wildlife Management. 80:850-861
Management of lesser scaup (Aythya affinis) has been hindered by access to reliable data on population trajectories and vital rates. We conducted a Bayesian analysis of historical (1951–2011) band-recovery data throughout North America to estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c94246f2688ff537686f698ce99b8f4f
https://doi.org/10.1002/jwmg.21074
https://doi.org/10.1002/jwmg.21074