The evolution of invasiveness in garden ants.
The evolution of invasiveness in garden ants.
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DOI：
10.1371/journal.pone.0003838
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发表时间：
2008
期刊：
影响因子：
3.7
通讯作者：
Boomsma, Jacobus J.
中科院分区：
文献类型：
--
作者：
Cremer, Sylvia;Ugelvig, Line V.;Drijfhout, Falko P.;Schlick-Steiner, Birgit C.;Steiner, Florian M.;Seifert, Bernhard;Hughes, David P.;Schulz, Andreas;Petersen, Klaus S.;Konrad, Heino;Stauffer, Christian;Kiran, Kadri;Espadaler, Xavier;d'Ettorre, Patrizia;Aktac, Nihat;Eilenberg, Jorgen;Jones, Graeme R.;Nash, David R.;Pedersen, Jes S.;Boomsma, Jacobus J.
目前尚不清楚为什么一些物种成为成功的入侵者，而另一些物种失败，以及入侵的成功是否取决于原生物种已经存在的预适应，还是取决于引入后从头进化的特征。蚂蚁是最严重的入侵害虫之一，疏忽长蚁及其在欧洲和亚洲的迅速传播是可能成为全球问题的有害蚂蚁的最新例子。在此，我们首次对大斑潜蝇及其非入侵姊妹种大斑潜蝇的行为、形态、种群遗传学、化学识别和寄生虫载量进行了综合研究。我们发现，忽略斑潜蚁表现出与其他入侵蚂蚁相同的超殖民地综合症，这是一种以交配而不是分散的社会制度为特征的社会系统，并且由大量的合作巢穴组成，而不是较小的相互敌对的蚁群。我们的结论是，忽略斑潜蝇的入侵成功依赖于引入后的寄生虫释放和在引入之前很久就进化出的交配系统、体型、蜂数和识别效率的预适应的组合。我们的结果挑战了这样的观点，即超殖民地组织是在小型侵入性创始人群体中化学识别线索的低遗传变异的必然结果。我们推测，在天然范围内，角质层油气剖面已经存在低变化和有限的挥发性，并结合低分散性和高粘性的群体结构。因此，人类向相对混乱的城市地区的运输成为诱导寄生虫释放的决定性因素，寄生虫在非社会性动植物中是公认的侵袭性普遍促进剂，但在入侵社会性昆虫中研究较少。
It is unclear why some species become successful invaders whilst others fail, and whether invasive success depends on pre-adaptations already present in the native range or on characters evolving de-novo after introduction. Ants are among the worst invasive pests, with Lasius neglectus and its rapid spread through Europe and Asia as the most recent example of a pest ant that may become a global problem. Here, we present the first integrated study on behavior, morphology, population genetics, chemical recognition and parasite load of L. neglectus and its non-invasive sister species L. turcicus. We find that L. neglectus expresses the same supercolonial syndrome as other invasive ants, a social system that is characterized by mating without dispersal and large networks of cooperating nests rather than smaller mutually hostile colonies. We conclude that the invasive success of L. neglectus relies on a combination of parasite-release following introduction and pre-adaptations in mating system, body-size, queen number and recognition efficiency that evolved long before introduction. Our results challenge the notion that supercolonial organization is an inevitable consequence of low genetic variation for chemical recognition cues in small invasive founder populations. We infer that low variation and limited volatility in cuticular hydrocarbon profiles already existed in the native range in combination with low dispersal and a highly viscous population structure. Human transport to relatively disturbed urban areas thus became the decisive factor to induce parasite release, a well established general promoter of invasiveness in non-social animals and plants, but understudied in invasive social insects.
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影响因子：
2.6
作者：
Bouwma, AM;Ahrens, ME;DeWayne Shoemaker, D
通讯作者：
DeWayne Shoemaker, D
影响因子：
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Power, AG
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2.6
作者：
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通讯作者：
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