Resource shifts in Malagasy dung beetles: contrasting processes revealed by dissimilar spatial genetic patterns.
Resource shifts in Malagasy dung beetles: contrasting processes revealed by dissimilar spatial genetic patterns.
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DOI：
10.1111/j.1461-0248.2008.01239.x
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发表时间：
2008-11
期刊：
影响因子：
8.8
通讯作者：
Rahagalala P
中科院分区：
文献类型：
--
作者：
Hanski I;Wirta H;Nyman T;Rahagalala P
当地的粪甲虫亚族Helictopleurina有65种，主要分布在马达加斯加东部的潮湿森林中。马达加斯加没有现存的本地有蹄类动物，但在过去的1500年里，有三种Helictopleurus在开放的栖息地转移到了引进的牛粪上。Helictopleurus neoamplicollis和Helictopleurus marsyas表现出非常有限的细胞色素氧化酶亚基1单倍型多样性和一个单一的单倍型是目前整个马达加斯加，这表明这些物种转移到牛粪在一个小区域，然后迅速扩大范围。相比之下，Helictopleurus quadripunctatus的分子多样性模式表明，马达加斯加南部大部分地区的饮食逐渐转变，与该物种的饮食范围更广一致。三个牛粪使用Helictopleurus物种有显着更大的地理范围比森林居住的物种，显然是因为转移到目前非常丰富的新资源放松种间竞争，阻碍了范围扩大的森林物种。生态学快报（2008）11：1208-1215
The endemic dung beetle subtribe Helictopleurina has 65 species mostly in wet forests in eastern Madagascar. There are no extant native ungulates in Madagascar, but three Helictopleurus species have shifted to the introduced cattle dung in open habitats in the past 1500 years. Helictopleurus neoamplicollis and Helictopleurus marsyas exhibit very limited cytochrome oxidase subunit 1 haplotype diversity and a single haplotype is present across Madagascar, suggesting that these species shifted to cattle dung in a small region followed by rapid range expansion. In contrast, patterns of molecular diversity in Helictopleurus quadripunctatus indicate a gradual diet shift across most of southern Madagascar, consistent with somewhat broader diet in this species. The three cattle dung-using Helictopleurus species have significantly greater geographical ranges than the forest-dwelling species, apparently because the shift to the currently very abundant new resource relaxed interspecific competition that hinders range expansion in the forest species. Ecology Letters (2008) 11: 1208–1215
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DOI：
10.1111/j.1095-8312.1999.tb01160.x
发表时间：
1999-09-01
影响因子：
1.9
作者：
Hewitt, GM
通讯作者：
Hewitt, GM
影响因子：
4.9
作者：
Clement, M;Posada, D;Crandall, KA
通讯作者：
Crandall, KA
影响因子：
3.3
作者：
Brown, JM;Abrahamson, WG;Way, PA
通讯作者：
Way, PA
影响因子：
5.9
作者：
Simberloff, D;Stiling, P
通讯作者：
Stiling, P
影响因子：
3.6
作者：
Orsini, Luisa;Koivulehto, Helena;Hanski, Ilkka
通讯作者：
Hanski, Ilkka