Talk:Allochrony

Initial gene pool for sympatric speciation?
Purely abstract models are very dubious, I guess. In this case:
 * "Allochrony is one of the few ecological phenomena that lend clear support to models and theories of sympatric speciation; the idea that related lineages can differentiate into independent gene pools while still sharing the same physical environment, simply by virtue of changes in the life cycle that lead to separation in time of different portions of the ancestral population."

First, this statement implicitely only applies to sexual species, doesn't it? There is no issue about sympatric speciation for non-sexual species, is there? Instead it's an ubiquitous phenonmenon, as far as I know.

Also, it presupposes a (rather large & radical) mutation leading to 2 populations separated by life cycles. Timely separation brings the required 2nd factor for sympatric speciation, namely interbreeding barrier (see my note on talk page of that article). But: how do the initial individuals of the new form survive & thrive & reproduce? How do they manage to construct a sufficient gene pool? --denis &#34;spir&#34; (talk) 09:05, 6 October 2011 (UTC)

Actually there is at least one example of sympatric speciation by allochrony: Band-Rumped Storm-Petrels on several islands across the Atlantic and the Pacific show seperation by breeding time and not by any other environmental factors. More information can be found in "Sympatric speciation by allochrony in a seabird" by Friesen et al. (2007).--130.15.114.139 (talk) 22:37, 10 September 2012 (UTC)