Climate change selects for heterozygosity in a declining fur seal population

  title={Climate change selects for heterozygosity in a declining fur seal population},
  author={Jaume Forcada and Joseph I. Hoffman},
Global environmental change is expected to alter selection pressures in many biological systems, but the long-term molecular and life history data required to quantify changes in selection are rare. An unusual opportunity is afforded by three decades of individual-based data collected from a declining population of Antarctic fur seals in the South Atlantic. Here, climate change has reduced prey availability and caused a significant decline in seal birth weight. However, the mean age and size of… CONTINUE READING
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Proceedings of the National Academy of Sciences of the United States of America • 2017

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