Evolutionary consequences of niche construction and their implications for ecology
Evolutionary consequences of niche construction and their implications for ecology
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DOI：
10.1073/pnas.96.18.10242
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发表时间：
1999-08-31
影响因子：
11.1
通讯作者：
Feldman, MW
中科院分区：
文献类型：
--
作者：
Laland, KN;Odling-Smee, FJ;Feldman, MW
生物体定期修改本地资源分布，影响其生态系统和性状的进化，其适应性取决于环境中自然选择的可变来源;我们称这些过程为生态位构建。我们探索生态位建设的进化后果，使用一个真正的基因座的人口遗传模型，它扩展了早期的分析，允许资源分布的影响生态位建设和独立的更新和耗尽的过程。分析证实，生态位的建设可以是一个强大的进化代理，通过产生选择，导致固定，否则有害的等位基因，支持稳定的多态性，没有预期，消除什么，否则将是稳定的多态性，并产生不寻常的进化动力学。即使是少量的生态位建设，或生态位建设，只有微弱的影响资源动态，可以显着改变生态和进化模式。
Organisms regularly modify local resource distributions, influencing both their ecosystems and the evolution of traits whose fitness depends on such alterable sources of natural selection in environments; We call these processes niche construction. We explore the evolutionary consequences of niche construction using a true-locus population genetic model, which extends earlier analyses by allowing resource distributions to be influenced both by niche construction and by independent processes of renewal and depletion. The analysis confirms that niche construction can be a potent evolutionary agent by generating selection that leads to the fixation of otherwise deleterious alleles, supporting stable polymorphisms where none are expected, eliminating what would otherwise be stable polymorphisms, and generating unusual evolutionary dynamics. Even small amounts of niche construction, or niche construction that only weakly affects resource dynamics, can significantly alter both ecological and evolutionary patterns.