Origins of altruism diversity II: Runaway coevolution of altruistic strategies via "reciprocal niche construction".
Origins of altruism diversity II: Runaway coevolution of altruistic strategies via "reciprocal niche construction".
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DOI：
10.1111/j.1558-5646.2012.01629.x
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发表时间：
2012-08
期刊：
影响因子：
--
通讯作者：
Wade MJ
中科院分区：
文献类型：
--
作者：
Van Dyken JD;Wade MJ
理解利他主义的进化需要了解它的限制和驱动因素。在这里，我们表明，矛盾的是，利他主义的生态约束可能最终是其最强大的驱动力。我们构建了一个具有两个特征的、具有局部资源竞争的遗传结构种群的社会进化的协同进化适应动力学模型。本地资源竞争的强度，这影响了社会选择的方向和强度，这是典型的静态参数，在这里被允许是一个可进化的特性。生存/繁殖力利他主义的进化，需要弱的本地竞争，增加本地竞争，因为它的演变，创造负面的环境反馈，最终抑制其进一步的进化进展。另一方面，基于资源的利他主义的进化需要强大的本地竞争，随着它的进化，本地竞争会减弱，最终也会导致它自己的进化停滞。当独立进化时，这些利他策略本质上是自我限制的。然而，这两种利他主义类型的共存将每种策略对自身产生的负面生态进化反馈转化为对另一种策略的正面反馈，允许一种特征的存在驱动另一种特征的进化。我们称这种反馈转换为“互惠利基建设”。在缺乏约束的情况下，这一过程会导致利他主义类型的失控共同进化。我们讨论了应用程序的起源和进化的真社会性，分工，过度的生态成功的真社会物种，以及技术和人口之间的相互作用，在人类进化。我们的理论表明，极端社会性的进化可能往往是一个自催化过程。
Understanding the evolution of altruism requires knowledge of both its constraints and its drivers. Here we show that, paradoxically, ecological constraints on altruism may ultimately be its strongest driver. We construct a two-trait, co-evolutionary adaptive dynamics model of social evolution in a genetically structured population with local resource competition. The intensity of local resource competition, which influences the direction and strength of social selection and which is typically treated as a static parameter, is here allowed to be an evolvable trait. Evolution of survival/fecundity altruism, which requires weak local competition, increases local competition as it evolves, creating negative environmental feedback that ultimately inhibits its further evolutionary advance. Alternatively, evolution of resource-based altruism, which requires strong local competition, weakens local competition as it evolves, also ultimately causing its own evolution to stall. When evolving independently, these altruistic strategies are intrinsically self-limiting. However, the co-existence of these two altruism types transforms the negative eco-evolutionary feedback generated by each strategy on itself into positive feedback on the other, allowing the presence of one trait to drive the evolution of the other. We call this feedback conversion “reciprocal niche construction”. In the absence of constraints, this process leads to runaway co-evolution of altruism types. We discuss applications to the origins and evolution of eusociality, division of labor, the inordinate ecological success of eusocial species, and the interaction between technology and demography in human evolution. Our theory suggests that the evolution of extreme sociality may often be an autocatalytic process.
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影响因子：
2.9
作者：
Agrawal, AF;Brodie, ED;Wade, MJ
通讯作者：
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作者：
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通讯作者：
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