Pattern and Process in Strepsirhine Phylogeny
Pattern and Process in Strepsirhine Phylogeny
复制标题
链球菌系统发育的模式和过程
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
I. Tattersall
中科院分区：
文献类型：
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作者：
J. Masters;R. J. Rayner;I. Tattersall
尽管达尔文关于多样性产生的因素和力量的观点在《物种起源》的不同版本中略有不同，但到他撰写第六版时，他的思想已经明确（达尔文，1872年，第129页）：
“虽然隔离在新物种的产生中是非常重要的，但总的来说，我倾向于相信，面积的广阔仍然更重要，特别是对于那些将证明能够持续很长一段时间并广泛传播的物种的产生。在一个广大的开阔地区，不仅由于那里有大量的同种个体，有利的变异的机会更大，而且由于大量的现有物种，生活条件也要复杂得多;如果这些物种中的一些物种发生了变异和改进，其他物种将不得不在相应的程度上得到改进，否则它们将被灭绝。每一种新的形式，一旦得到很大的改进，也将能够扩展到开放和连续的区域，从而与许多其他形式竞争。(our强调）
Although Darwin’s ideas concerning the factors and forces responsible for the generation of diversity varied somewhat from one edition of The Origin of Species to the next, by the time he came to write the sixth edition his thoughts had crystallized (Darwin, 1872, p. 129):
“Although isolation is of great importance in the production of new species, on the whole I am inclined to believe that largeness of area is still more important, especially for the production of species which shall prove capable of enduring for a long period, and of spreading widely. Throughout a great and open area, not only will there be a better chance of favourable variations, from the large number of individuals of the same species there supported, but the conditions of life are much more complex from the large number of already existing species; and if some of these many species become modified and improved, others will have to be improved in a corresponding degree, or they will be exterminated. Each new form, also, as soon as it has been much improved, will be able to spread over the open and continuous area, and will thus come into competition with many other forms.” (our emphasis)