Comparative demography of new world populations of thrushes (Turdu spp.).

From: Ecological Monographs | Date: February 1, 1997| Author: | Copyright information

This analysis uses information obtained primarily from museum collections to estimate demographic parameters of populations of thrushes (Turdus spp.) from throughout the Western Hemisphere. Adult survival rates were estimated from the proportions of individuals [is greater than] 1 yr old in museum collections, assuming constant population size, discrete reproductive seasons, unbiased collecting, and maturity at 1 yr old. The effects of relaxing each of these assumptions were examined. The resulting biases were found to be small compared to differences between populations, and in several ...

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