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Log in. Log in through your institution. Numerous explanations have been offered for biased sex ratios including sampling bias, skewed primary sex ratios, differential mortality, differntial immigration and emigration, and differential maturity of the sexes. The overall adult male:female sex ratio was 1. Although males predominated numerically, the probability of recapturing individuals of either sex was the same 0. Sex ratios were consistently male biased when based on monthly and yearly samples.
This bias was not altered by the www adultsex of different collecting techniques or restriction of the sample to major habitats within the study area. ly reported adult sex ratios for other populations range from strongly male biased to strongly female biased. Reports of female-biased samples appear to be a result of sampling bias or the artificial conditions under which terrapins have been cultivated in the past.
The excess of males in our population appears to be a result of differences in the timing of maturity between the sexes. Male Malaclemys mature after their third year and females after their sixth year. Assuming a minimal effect from the other potential factors and regular juvenile recruitment, www adultsex expect that male Malaclemys will maintain numerical superiority in most populations.
We propose that adult sex ratio variation in turtles, and other organisms with sexual differences in the timing of maturity, can be explained with a simple model: the earlier maturing sex will predominate numerically. Oikos is a journal issued by the Nordic Ecological Society and is one of the leading peer-reviewed journals in ecology.
Oikos publishes original and innovative research on all aspects of ecology. Emphasis is on theoretical and empirical work aimed at generalization and synthesis across taxa, systems and ecological disciplines. Papers should be well founded in ecological theory and contribute to new developments in ecology by reporting novel theory or critical experimental.
Confirming www adultsex extending the established literature is given less priority. Synthesis of new and emerging fields in ecology and beyond is encouraged. Papers of review character should should strive for conceptual unification and being a point of departure for future work rather that restrospective summaries of established fields or topics.
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Abstract Numerous explanations have been offered for biased sex ratios including sampling bias, skewed primary sex ratios, differential mortality, differntial immigration and emigration, and differential maturity of the sexes. Journal Information Oikos is a journal issued by the Nordic Ecological Society and is one of the leading peer-reviewed journals in ecology.
Publisher Information Wiley is a global provider of content and content-enabled workflow solutions in areas of scientific, technical, medical, and scholarly research; professional development; and education.Www adultsex
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