id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
5999n298v5h	Thomas H. Q. Powell	Ecological Divergence, Host Race Formation, and Speciation: Host Plant Adaptation as a Driver of Insect Diversification	2012		.txt	text/plain	365	12	24	These findings support the following conclusions regarding the five questions: (1) Sympatrically-formed species can represent host races writ-large; (2) The initiation of ecological speciation may proceed readily in Rhagoletis; (3) Both olfactory and diapause traits are important to ecological adaptation and reproductive isolation in Rhagoletis, but there are limits to their role in diversification; (4) Standing genetic variation, in the form of heterogeneous resource use in allopatric populations and latitudinal clines, has been a major factor in the radiation of the R. pomonella species complex; and (5) The transition from host race to species appears to involve the uplift of genomic 'continents of speciation' driven global reductions in effective migration. I addressed these questions by investigating two components of the R. pomonella species complex: 1) populations of R. pomonella infesting an array of hawthorn species in the southeastern U.S. and (2) the flowering dogwood fly, the sister species to R. pomonella.	cache/5999n298v5h.txt	txt/5999n298v5h.txt