By Jean-Pierre L. Savard, Dirk V. Derksen, Dan Esler, John M. Eadie
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.
Read Online or Download Ecology and Conservation of North American Sea Ducks PDF
Similar evolution books
In a Darwinian global, non secular habit - similar to different behaviors - is probably going to have passed through a means of normal choice during which it was once rewarded within the evolutionary foreign money of reproductive luck. This ebook goals to supply a greater realizing of the social eventualities within which choice strain ended in non secular practices turning into an developed human trait, i.
The e-book offers with the list of significant Neoproterozoic to Early Palaeozoic occasions in southwestern Gondwana, that heralded the Cambrian explosion and the sunrise of recent ecosystems. It features a special account of the Neoproterozoic to Cambrian geological checklist in a poorly-known a part of the area, that's whilst key to appreciate primary methods on the Proterozoic-Cambrian transition.
Karl Striegler investigates novel fabrics for photocatalytic hydrogen evolution from water. Graphitic Carbon Nitrides are a fascinating type of fabrics with a constitution with reference to graphite. For overcoming sure barriers, the writer used various methods to functionalize the fundamental fabric.
- Classification and evolution of the eumenine wasp genus Symmorphus Wesmael (Hymenoptera: Vespidae)
- The Evolution of The Milky Way
- In Gods We Trust: The Evolutionary Landscape of Religion (Evolution and Cognition)
- Microstructure evolution in metal forming processes
- The Fundamental Role of Teletraffic in the Evolution of Telecommunications Networks
- Evolution: Where Do Muslims Stand
Extra resources for Ecology and Conservation of North American Sea Ducks
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.
Ecology and Conservation of North American Sea Ducks by Jean-Pierre L. Savard, Dirk V. Derksen, Dan Esler, John M. Eadie