Darwinian evolution does not rule out the gaia hypothesis.
Darwinian evolution does not rule out the gaia hypothesis.
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达尔文进化论并不排除盖亚假说。
DOI：
10.1006/jtbi.2002.3091
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发表时间：
2002
影响因子：
2
通讯作者：
T. Sugimoto
中科院分区：
文献类型：
--
作者：
T. Sugimoto
这项研究从数学角度详细地探索了所谓的达尔文雏菊世界。最初的雏菊世界是由 Watson 和 Lovelock（1983）提出的，旨在展示两种雏菊如何通过这些物种之间与不断上升的太阳光度的竞争来调节地球的全球温度，即盖亚假说。它的变体是达尔文雏菊世界，其中雏菊可以适应当地的温度。 Robertson & Robinson (1998) 根据电子表格模拟，坚持认为达尔文雏菊失去了温度调节能力。 Lenton 和 Lovelock（2000）指出，在欧拉代码模拟的基础上，对适应的限制恢复了达尔文雏菊的温度调节能力。目前的研究表明，这两个雏菊世界存在精确且封闭的解。结果与之前的研究相矛盾：罗伯逊和罗宾逊的雏菊确实比非适应性雏菊调节全球温度的时间更长；由于适应性的限制，Lenton 和 Lovelock 的雏菊的适应性不如 Robertson 和 Robinson 的雏菊；弱适应性的引入将物种推向进化的死胡同。因此，目前的结果证实了盖亚假说和达尔文进化论可以共存。
This study explores so-called Darwinian Daisyworlds mathematically rigorously in detail. The original Daisyworld was introduced by Watson & Lovelock (1983) to demonstrate how two species of daisies regulate the global temperature of their planet through competition among these species against the rising solar luminosity, i.e. the Gaia hypothesis. Its variants are Darwinian Daisyworlds in which daisies can adapt themselves to the local temperature. Robertson & Robinson (1998) insist their Darwinian daisies lose the ability for temperature regulation on the basis of their spreadsheet simulations. Lenton & Lovelock (2000) point out that the constraints on adaptation recovers Darwinian daisies' ability of temperature regulation on the basis of their Euler-code simulations. The present study shows there exist the exact and closed-form solutions to these two Daisyworlds. The results contradict the former studies: Robertson and Robinson's daisies do regulate the global temperature even longer than non-adaptive daisies; Lenton and Lovelock's daisies are less adaptive than Robertson and Robinson's daisies because of the constraints on adaptation; the introduction of weak adaptability drives species into a dead end of evolution. Thus, the present results confirm that the Gaia hypothesis and Darwinian evolution can coexist.