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Scott M. Ramsay
Sex allocation in black-capped chickadees.
Scott M. Ramsay, Daniel J. Mennill, Ken A. Otter, Laurene M. Ratcliffe and Peter T. Boag
published: 2003 | Research publication | Chickadees
This study, drawn from a ten-year investigation, shows no evidence for adaptive sex allocation by female black-capped chickadees. We examined five different factors that predict patterns of sex ratio variation including clutch size, maternal condition, parental rank, hatch date and paternity. We found no patterns of variation related to any of these factors.
Download: PDF (348k) Sex_Ratio_Paper.PDF
revised Jul 19/05
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