Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Suzann G. Speckman"'
Autor:
John J. Brueggeman, Leslie A. Cornick, Kim E. W. Shelden, Suzann G. Speckman, Amanda Prevel-Ramos, Beverly A. Agler
Publikováno v:
Marine Fisheries Review. 76:22-50
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56ac68596cfb7e0182fb2a2a0667d3be
https://doi.org/10.7755/mfr.76.1_2.2
https://doi.org/10.7755/mfr.76.1_2.2
Autor:
Anatoly A. Kochnev, Alexander Lisovsky, Anthony S. Fischbach, Suzann G. Speckman, Mark S. Udevitz, Vladimir I. Chernook, Douglas M. Burn, Alexander Vasilev, Chadwick V. Jay, R. Bradley Benter
Publikováno v:
Marine Mammal Science. 27:514-553
In spring 2006, we conducted a collaborative U.S.–Russia survey to estimate abundance of the Pacific walrus (Odobenus rosmarus divergens). The Bering Sea was partitioned into survey blocks, and a systematic random sample of transects within a subse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::702349e83c71549ae284a08925c80b05
https://doi.org/10.1111/j.1748-7692.2010.00419.x
https://doi.org/10.1111/j.1748-7692.2010.00419.x
An improved procedure for detection and enumeration of walrus signatures in airborne thermal imagery
Publikováno v:
International Journal of Applied Earth Observation and Geoinformation. 11:324-333
In recent years, application of remote sensing to marine mammal surveys has been a promising area of investigation for wildlife managers and researchers. In April 2006, the United States and Russia conducted an aerial survey of Pacific walrus (Odoben
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471d41bff03faeaf23cf81f41bd3265b
https://doi.org/10.1016/j.jag.2009.05.004
https://doi.org/10.1016/j.jag.2009.05.004
Autor:
Thomas I. Van Pelt, John F. Piatt, Michael T. Shultz, Suzann G. Speckman, Ann M. A. Harding, Arthur B. Kettle, Gary S. Drew
Publikováno v:
Marine Ecology Progress Series. 352:221-234
In his seminal paper about using seabirds as indicators of marine food supplies, Cairns (1987, Biol Oceanogr 5:261-271) predicted that (1) parameters of seabird biology and behavior would vary in curvilinear fashion with changes in food supply, (2) t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30f020edd9d89f49e860b4cff64a9c45
https://doi.org/10.3354/meps07078
https://doi.org/10.3354/meps07078
Autor:
Suzann G. Speckman, Michael T. Shultz, Thomas I. Van Pelt, Joel A. Schmutz, John F. Piatt, Ann M. A. Harding, Arthur B. Kettle
Publikováno v:
Ecology. 88:2024-2033
Flexible time budgets allow individual animals to buffer the effects of variable food availability by allocating more time to foraging when food density decreases. This trait should be especially important for marine predators that forage on patchy a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a7c3b7eb7907d39ef570e8cc9ce84c6
https://doi.org/10.1890/06-1695.1
https://doi.org/10.1890/06-1695.1
Like other top predators that compete with human beings for prey species, sea otters inspire extremes of emotion. Debates about sea otter management in California and Alaska over the past several decades have revealed widely divergent perspectives. P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cbc776f231db4f6a583fc3edf0e148d
https://doi.org/10.1016/b978-0-12-801402-8.00012-3
https://doi.org/10.1016/b978-0-12-801402-8.00012-3
Publikováno v:
Progress in Oceanography. 66:25-65
We assessed spatial and temporal variability in the physical environment of a subarctic estuary, and examined concurrent patterns of chlorophyll abundance (Xuorescence), and zooplankton and forage Wsh community structure. Surveys were conducted in lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::397c0aace2df2cea83b2adb6eb752edf
https://doi.org/10.1016/j.pocean.2005.04.001
https://doi.org/10.1016/j.pocean.2005.04.001
Autor:
Michael A. Litzow, John F. Piatt, Alisa A. Abookire, Suzann G. Speckman, Mayumi L. Arimitsu, Jared D. Figurski
Publikováno v:
The Condor. 106:410-415
Low spatiotemporal variability in the abundance of nonschooling prey might allow Pigeon Guillemots (Cepphus columba) to maintain the high chick provisioning rates that are characteristic of the species. We tested predictions of this hypothesis with d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c635a047d095a39eca650e14c98fe1
https://doi.org/10.1093/condor/106.2.410
https://doi.org/10.1093/condor/106.2.410
Publikováno v:
Waterbirds. 26:266-274
We surveyed Marbled Murrelets (Brachyramphus marmoratus) daily from small boats in Auke Bay and Fritz Cove, Alaska, from May through August 1992 and 1993. Differences in numbers of juveniles and in the timing of their presence in the study area betwe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdaab0687eef6df88d3439cc407c3aa1
https://doi.org/10.1675/1524-4695(2003)026[0266:dtssom]2.0.co
https://doi.org/10.1675/1524-4695(2003)026[0266:dtssom]2.0.co
Publikováno v:
Northwestern Naturalist. 85:32-34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34cf234b687f64d712143f6d27ca1469
https://doi.org/10.1898/1051-1733(2004)085<0032:sbdfmm>2.0.co
https://doi.org/10.1898/1051-1733(2004)085<0032:sbdfmm>2.0.co