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Sociability between invasive guppies and native topminnows

机译：侵入性孔雀鱼和本地小min之间的交际性

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The role of interspecific social interactions during species invasions may be more decisive than previously thought. Research has revealed that invasive fish improve their foraging success by shoaling with native Mexican species, and potentially increase the chances of invasion success. However, do native individuals tend to associate with invaders as well? We tested the hypothesis that the twoline skiffia (Neotoca bilineata) and the Lerma livebearer (Poeciliopsis infans), both native endemic Mexican topminnows, will associate with guppies, a notorious invasive species present in Mexico. Our investigation shows that guppies, twoline skiffias and Lerma livebearers have a mutual tendency to associate with each other. Although there is a marked tendency to shoal with heterospecifics in this system, shoaling partners do not necessarily benefit equally from the association. Further research on invasive-native social interactions is needed to promote our understanding of potential facilitation by natives.
机译：种间社会互动在物种入侵过程中的作用可能比以前认为的更具决定性。研究表明，入侵性鱼类通过与墨西哥本地物种进行滩涂来提高觅食的成功率，并有可能增加入侵成功的机会。但是，土著人是否也倾向于与侵略者交往？我们检验了这样的假设，即既是墨西哥特有的当地特有种，即两线制斯基摩犬（Neotoca bilineata）和莱尔马活体（Poeciliopsis infans）将与孔雀鱼（墨西哥存在的一种臭名昭著的入侵物种）相关联。我们的调查显示，孔雀鱼，二线斯基夫斯基犬和莱尔马活体动物具有相互交往的倾向。尽管在此系统中存在使用异性物种进行暗沙的明显趋势，但是暗沙伙伴并不一定会从关联中平等受益。需要对侵入性-本机社会互动进行进一步研究，以增进我们对土著人潜在便利的理解。

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