関連する実験動画

Updated: May 2, 2026

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila
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人口密度は,値二型化の局所的な進化を駆動する

Joseph L Tomkins1, Gordon S Brown

  • 1Division of Environmental and Evolutionary Biology, Sir Harold Mitchell Building, University of St Andrews, St Andrews, Fife KY16 9TH, UK. jlt1@st-andrews.ac.uk

Nature
|October 29, 2004
PubMed
まとめ

オスのイアウィッグは,その大きさや地位に基づいて,異なる生殖戦術を進化させる. 人口密度は,この進化を駆動し,短距離で明確な雄性二型化につながります.

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Population Growth00:57

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Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
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