Inordinate fondness explained: Why are there so many beetles?

被引:603
作者
Farrell, BD [1 ]
机构
[1] Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA
关键词
D O I
10.1126/science.281.5376.555
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The phylogeny of the Phytophaga, the Largest and oldest radiation of herbivorous beetles, was reconstructed from 115 complete DNA sequences for the 18S nuclear ribosomal subunit and from 212 morphological characters. The results of these analyses were used to interpret the role of angiosperms in beetle diversification. Jurassic fossils represent basal Lineages that are still associated with conifers and cycads. Repeated origins of angiosperm-feeding beetle Lineages are associated with enhanced rates of beetle diversification, indicating a series of adaptive radiations. Collectively, these radiations represent nearly half of the species in the order Coleoptera and a similar proportion of herbivorous insect species.
引用
收藏
页码:555 / 559
页数:7
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