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Distribution And Abundance Of Marine Birds
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Book Synopsis A Study of the Distribution and Abundance of Marine Birds in the Eastern Indian Ocean by : J. N. Dunlop
Download or read book A Study of the Distribution and Abundance of Marine Birds in the Eastern Indian Ocean written by J. N. Dunlop and published by . This book was released on 1988 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Distribution and Abundance of Marine Birds, Part I, Shipboard Surveys by : Calvin J. Lensink
Download or read book Seasonal Distribution and Abundance of Marine Birds, Part I, Shipboard Surveys written by Calvin J. Lensink and published by . This book was released on 1976 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Abundance of Marine Birds by : Calvin J. Lensink
Download or read book Distribution and Abundance of Marine Birds written by Calvin J. Lensink and published by . This book was released on 1978 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Distribution and Abundance of Marine Birds and Mammals in the Gulf of the Farallones and Adjacent Waters, 1985-1992 by : Sarah Gardner Allen
Download or read book The Distribution and Abundance of Marine Birds and Mammals in the Gulf of the Farallones and Adjacent Waters, 1985-1992 written by Sarah Gardner Allen and published by . This book was released on 1996 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Distribution and Abundance of Marine Birds by : Calvin J. Lensink
Download or read book Seasonal Distribution and Abundance of Marine Birds written by Calvin J. Lensink and published by . This book was released on 1976 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Distribution and Abundance of Marine Birds by : Calvin J. Lensink
Download or read book Seasonal Distribution and Abundance of Marine Birds written by Calvin J. Lensink and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Describes activites by U.S. Fish and Wildlife Service personnel related to shipboard surveys of marine birds in Alaskan waters during the two quarters from 1 January to 30 June 1976"--Leaf 1.
Book Synopsis Patterns of Distribution, Abundance, and Change Over Time in the Marine Bird Community of Prince William Sound, Alaska, 1989-2012 by : Daniel Arel Cushing
Download or read book Patterns of Distribution, Abundance, and Change Over Time in the Marine Bird Community of Prince William Sound, Alaska, 1989-2012 written by Daniel Arel Cushing and published by . This book was released on 2014 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent decades, the marine ecosystems of Prince William Sound (PWS), Alaska have experienced the concurrent effects of a major anthropogenic disturbance, the 1989 Exxon Valdez oil spill (EVOS), and a dynamic atmospheric-oceanic environment. Studies of top marine consumers can provide insights into processes of ecosystem change. Using data collected during boat-based marine bird surveys in PWS over the period 1989-2012, I used complimentary taxon- and community-centric approaches to investigate patterns of distribution and abundance of marine birds across space and time. In doing so, I sought to provide insight into processes that may have affected both the birds themselves and the ecosystems of which they are a part. I found that the marine bird community as a whole was spatially structured along a primary onshore-offshore environmental gradient, and secondarily structured along an estuarine-marine environmental gradient. I found two patterns of community variability across time. The first temporal community-level pattern was likely related to sustained rates of change in the abundance of some genera, likely caused by demographic processes. This pattern was correlated with climate variability at time-scales of several years to a decade. The second temporal community-level pattern was characterized by fluctuations that correlated with climate variability at an annual time-scale, likely caused by movements of birds between PWS and the adjacent Gulf of Alaska. I also evaluated changes in the abundance of 18 genera of marine birds, and found that seven had declined in abundance and three had increased over the study period; all genera that declined were piscivorous or planktivorous. Furthermore, the rates of population change of genera were related to their position in the onshore-offshore gradient, with the highest rates of decline occurring in offshore-associated genera. I also investigated spatial habitat associations and temporal changes in abundance of a focal taxon, the seabird genus Brachyramphus. Two species within this piscivorous, pursuit-diving genus occur in PWS, the marbled murrelet (B. marmoratus) and the Kittlitz's murrelet (B. brevirostris). Both are species of conservation concern, and both experienced acute mortality in PWS caused by the EVOS. Using a statistical model that accounted for variables affecting observed abundance across space and time, I found that abundance decreased by more than two-thirds over the study period. I found no evidence that rates of change differed along environmental or geographic gradients. There was also no evidence that changes in seasonal patterns of abundance occurred. These results are indicative of a widespread decline in the abundance of Brachyramphus murrelets within PWS. Taken as a whole, the results of my thesis are consistent with the hypothesis that climate change has differentially affected nearshore and offshore components of PWS food webs. This in turn has likely contributed to the failure of some taxa, including Brachyramphus murrelets, to recover from population injury caused by the EVOS.
Book Synopsis Distribution and Abundance of Marine Birds in the Eastern Indian Ocean by : J N. Dunlop
Download or read book Distribution and Abundance of Marine Birds in the Eastern Indian Ocean written by J N. Dunlop and published by . This book was released on 1988 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Bird Distribution and Abundance in Offshore Waters by : Elizabeth A. Labunski
Download or read book Marine Bird Distribution and Abundance in Offshore Waters written by Elizabeth A. Labunski and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aerial Surveys of Distribution and Abundance of Marine Birds and Mammals in Santa Barbara Channel and the Santa Maria Basin by : Russell J. Schmitt
Download or read book Aerial Surveys of Distribution and Abundance of Marine Birds and Mammals in Santa Barbara Channel and the Santa Maria Basin written by Russell J. Schmitt and published by . This book was released on 2003 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Marine Bird Distribution and Abundance Off Southern California by : Karl David Hyrenbach
Download or read book Marine Bird Distribution and Abundance Off Southern California written by Karl David Hyrenbach and published by . This book was released on 2001 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Seasonal Distribution and Abundance of Marine Bird Populations in the Strait of Juan de Fuca and Northern Puget Sound in 1978 by : David A. Manuwal
Download or read book The Seasonal Distribution and Abundance of Marine Bird Populations in the Strait of Juan de Fuca and Northern Puget Sound in 1978 written by David A. Manuwal and published by . This book was released on 1979 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and abundance of marine bird and pinniped populations within Port Foster, Deception Island, Antarctica by : K.A. KENDALL
Download or read book Distribution and abundance of marine bird and pinniped populations within Port Foster, Deception Island, Antarctica written by K.A. KENDALL and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Abundance of Marine Birds and Mammals Wintering in the Kodiak Area of Alaska by : P. J. Gould
Download or read book Distribution and Abundance of Marine Birds and Mammals Wintering in the Kodiak Area of Alaska written by P. J. Gould and published by . This book was released on 1981 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Abundance of Marine Birds and Mammals Wintering in the Kodiak Area of Alaska by : U.S. Fish and Wildlife Service. Office of Biological Services
Download or read book Distribution and Abundance of Marine Birds and Mammals Wintering in the Kodiak Area of Alaska written by U.S. Fish and Wildlife Service. Office of Biological Services and published by . This book was released on 1981 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution, Abundance, Migration, and Breeding Locations of Marine Birds, Lower Cook Inlet, Alaska, 1976 by : David Erikson
Download or read book Distribution, Abundance, Migration, and Breeding Locations of Marine Birds, Lower Cook Inlet, Alaska, 1976 written by David Erikson and published by . This book was released on 1977 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Eastern Bering Sea Shelf by : Donald Wilbur Hood
Download or read book The Eastern Bering Sea Shelf written by Donald Wilbur Hood and published by . This book was released on 1981 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: