Ecology and Conservation of North American Sea Ducks - download pdf or read online

By Jean-Pierre L. Savard, Dirk V. Derksen, Dan Esler, John M. Eadie

ISBN-10: 1482248972

ISBN-13: 9781482248975

The prior decade has visible an important raise within the curiosity and a spotlight directed towards sea geese, the Mergini tribe. This has been encouraged, largely, through the conservation matters linked to numerical declines in different sea duck species and populations, in addition to a transforming into appreciation for his or her attention-grabbing ecological attributes. Reflecting the huge examine lately performed in this tribe, Ecology and Conservation of North American Sea Ducks examines the 15 extant species of sea geese from North America.

Chapters are prepared conceptually to target, examine, and distinction the ecological attributes of the tribe. specialists supply in-depth remedies of a number of subject matters, including:

  • Population dynamics and genetics
  • Infectious illnesses and parasites
  • Breeding bills and cross-seasonal affects
  • Contaminant burdens
  • Foraging habit and energetics
  • Migration suggestions, molt ecology, and habitat affinities and dynamics
  • Breeding structures and reproductive behavior
  • Harvest background

The publication provides a finished synthesis of sea duck ecology, records components that experience triggered inhabitants declines of a few species, and offers managers with measures to reinforce restoration of depressed populations of sea geese in North the USA. shooting the present nation of data of this certain tribe, it presents a benchmark for the place we're in conservation efforts and indicates destiny instructions for researchers, managers, scholars, conservationists, and avian fans.

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Extra resources for Ecology and Conservation of North American Sea Ducks

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B. Fischer and R. A. Stehn, unpubl. report). An average of approximately 3,500 Common Eider nests were estimated (after correcting for undetected nests; J. B. Fischer and R. A. Stehn, unpubl. report) on the Yukon–Kuskokwim Delta during the most recent 5-year period (2008–2012). 1).  M. Platte and R. A. Stehn, unpubl. report). In the Aleutian Islands, various surveys conducted periodically since the 1970s provide minimal estimates for the region. S. Fish and Wildlife Service, unpubl. report). Reliable long-term trend data are nearly nonexistent for most of the Aleutians, as is the case for other large sections of the breeding range for the Pacific Common Eider.

2008) and eastern North America (S. G. Gilliland, pers. ), it is clear that there are two distinct populations of Black Scoters: one that breeds in Alaska and one that breeds in Eastern Canada. We refer to these populations as Pacific and Atlantic Black Scoters, respectively. 4). Aerial survey and ground observations have indicated that nearly all scoters in the Alaska tundra strata are Black Scoters. 9). The Pacific Black Scoter survey, initiated in 2004 specifically to monitor this breeding population, indicates an increasing trend from 2004 to 2012.

Lawrence Estuary, Quebec, during eiderdown collections, 1965–2007. Fitted local polynomial regressions (solid curve) with 95% confidence intervals (gray shading) for fitted values are also plotted. (From Duvetnor and Société Protectrice des Eiders de l’Estuaire, unpubl. ) although no comprehensive coast-wide survey has been conducted (R. B. Allen, Maine Department of Inland Fisheries and Wildlife, unpubl. data). Numbers of American Common Eiders in the southern part of their breeding range appeared to peak in the late 1990s; however, data from colonies in the St.

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Ecology and Conservation of North American Sea Ducks by Jean-Pierre L. Savard, Dirk V. Derksen, Dan Esler, John M. Eadie

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