Hastings Natural History Reservation

02 May, 08 AM - 11 May, 05 AM

We will use a unique historical record gathered by Joseph Grinnell and colleagues over the past 100 years to examine changes in patterns of avian diversity. Between 1904 and 1940, Grinnell and colleagues documented mammals, birds, amphibians and reptiles from >700 locations spanning the environmental diversity of California. We propose here to look for latitudinal range shifts and local extinctions and colonizations in coastal California avifauna in response to varying degrees of climate change over the past century. Resurveys will be analyzed using occupancy modeling statistical approaches that estimate detectability in both Grinnell and contemporary periods in order to provide and unbiased estimate of occupancy. Our results will provide bias-free, spatially-explicit estimates and tests of changes in occupancy over the past 100 years in relation to climate change, which, in combination with recent and on-going Grinnell project surveys elsewhere in California, will provide important information for the testing and evaluation of climate change models.

Visit #21378 @Hastings Natural History Reservation

Approved

Under Project # 21734 | Research

Assessing Long-term Dynamics of Bird Distributions in Relation to Climate Change: From Grinnell to Present

graduate_student - University of California, Davis

Reservation Members(s)

Peter Epanchin May 2 - 11, 2010 (10 days)

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