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  • Human hunting mortality threshold rules for extinction in mammals (and fish)

    Creator:
    Charnov, Eric L. and Zuo, Wenyun
    Abstract:
    Question: Are there general life-history rules for exploitation-caused extinction of mammal populations? Mathematical methods: A population of size N faced with the added mortality of human exploitation will deterministically go extinct if its per-capita birth rate can no longer match its per-capita mortality rate as N approaches zero. We develop...
    Resource Type:
    Article
    Full Text:
    statement on the inside front cover for non-commercial copying policies. Evolutionary Ecology Research

  • Intraspecific home range scaling: a case study from the owl limpet (Lottia gigantea)

    Creator:
    Fenberg, Phillip B.
    Abstract:
    Background: The owl limpet (Lottia gigantea) is an ectothermic invertebrate that inhabits the rocky intertidal zone where it territorially defends home ranges and grazes algae growing on the rocks. Among endothermic species, home range scales isometrically with body mass. Hypothesis: Home range area scales isometrically (scaling exponent ∼1.0) across individuals...
    Resource Type:
    Article
    Full Text:
    copying policies. Evolutionary Ecology Research, 2013, 15: 103–110 © 2013 Phillip B. Fenberg The home

  • Shrimp adjust their sex ratio to fluctuating age distributions

    Creator:
    Charnov, Eric L. and Hannah, Robert W.
    Abstract:
    Long-term data sets that quantitatively confirm basic ecological theory are rare for field populations. Highly variable recruitment often causes wide temporal variation in population age distribution and basic theory for adaptive sex ratio often predicts ‘sex ratio tracking’ to match the fluctuating age distribution. Using sex-changing shrimp as a model...
    Resource Type:
    Article
    Full Text:
    statement on the inside front cover for non-commercial copying policies. Evolutionary Ecology Research