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Article

Abundance and conservation status of the Yangtze finless porpoise in the Yangtze River, China

Xiujiang Zhao, Auteur ; Jay Barlow, Auteur ; Barbara L. Taylor, Auteur ; Robert L. Pitman, Auteur ; Kexiong Wang, Auteur ; Zhuo Wei, Auteur ; Brent S. Stewart, Auteur ; Samuel T. Turvey, Auteur ; Tomonari Akamatsu, Auteur ; Randall R. Reeves, Auteur ; Ding Wang, Auteur

Dans Biological Conservation (141(12) DEC 2008)

middle and lower reaches of the Yangtze River, China. It is the only freshwater population of porpoises in the world and is currently listed as Endangered by IUCN. In November and December 2006 we used two boats and line transect methods to surv[...]

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Article

Bayesian state-space model of fin whale abundance trends from a 1991-2008 time series of line-transect surveys in the California Current

Jeffrey E. Moore, Auteur ; Jay Barlow, Auteur

Dans Journal of Applied Ecology (48(5) OCT 2011)

1. Estimating temporal trends in animal abundance is central to ecology and conservation, but obtaining useful trend estimates is challenging when animal detection rates vary across surveys (e.g. because of differences in observers or conditions[...]

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