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原文連結
論文資訊
- 類型：已發表論文
- 日期：2010
摘要
Organisms from prokaryotes to plants and animals make costly investments in diffusible beneficial external products. While the costs of producing such products are born only by the producer, the benefits may be distributed more widely. How are external goods-producing 族群s stabilized against invasion by nonproducing variants that receive the benefits without paying the cost? This question parallels the classic question of 利他主義, but because external goods production need not be altruistic per se, a broader range of conditions may lead to the maintenance of these traits. We start from the physics of 擴散 to develop an expression for the conditions that favor the production of diffusible external goods. Important variables in determining the 演化ary outcome include the 擴散 coefficient of the good,
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