By William F. Perrin, Bernd Würsig, Visit Amazon's J.G.M. Thewissen Page, search results, Learn about Author Central, J.G.M. Thewissen,
This thorough revision of the vintage first variation brings this authoritative e-book correct updated. Articles describe each species intimately, in response to the very most recent taxonomy, and a bunch of organic, ecological and sociological points in terms of marine mammals. the newest details at the biology, ecology, anatomy, habit and interactions with guy is supplied through a forged of specialist authors - all offered in such aspect and readability to help either marine mammal experts and the intense naturalist. totally referenced all through and with a clean number of the simplest colour photos on hand, the long-awaited 2d variation continues to be on the leading edge because the go-to reference on marine mammals. * greater than 20% NEW fabric contains articles on weather switch, Pacific White-sided Dolphins, Sociobiology, Habitat Use, Feeding Morphology and extra * Over 260 articles at the person species with subject matters starting from anatomy and behaviour, to conservation, exploitation and the effect of worldwide weather switch on marine mammals * New colour illustrations convey each species and record topical articles FROM the 1st version "This ebook is so good...a cut price, jam-packed with riches...packed with interesting brand new info. i like to recommend it unreservedly it to participants, scholars, and researchers, in addition to libraries". - Richard M. legislation, MARINE MAMMALS technological know-how "...establishes an excellent and pleasurable starting place for present learn and destiny exploration" - Ronald J. Shusterman, technology
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Extra info for Encyclopedia of Marine Mammals
Borchers, D. , and Thomas, L. (eds) (2004). ” Oxford University Press, Oxford. Chapman, D. , and Johnson, A. M. (1968). Estimation of fur seal populations by randomized sampling. Trans. Am. Fish. Soc. 97, 264–270. Hammond, P. , Mizroch, S. , and Donovan, G. P. (eds) (1990). ” International Whaling Commission, Cambridge. Hammond, P. , et al. (10 authors) (2002). Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. J. App. Ecol. 39, 361–376. Pollock, K. H. (1991).
The sizes of colonies of pinnipeds can also be determined using estimates of the area of all colonies coupled with estimates of the density of animals on those colonies. Although this method is often used to estimate the sizes of bird colonies, it has only been used occasionally to estimate pinniped population sizes. The estimates of the areas of the colonies were made from maps of the colonies. Counts or corrected counts, or mark–recapture estimates of the population of interest, are determined on a subsample of colonies.
Abundance of sirenian populations has traditionally been obtained by strip transect methods. C. Cue Counting In cue counting, observers on a ship or in an aircraft cover a sector ahead of their observation platform and record all cues detected within the sector and the distances of the cues from the platform. In principle, the method can be used for any marine mammal, but in practice, it has been used primarily for large whales, for which the cue is the blow. The same design considerations apply as for line transect sampling, although the analysis is essentially the same as for point transect sampling.
Encyclopedia of Marine Mammals by William F. Perrin, Bernd Würsig, Visit Amazon's J.G.M. Thewissen Page, search results, Learn about Author Central, J.G.M. Thewissen,