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首页> 外文期刊>Herpetologica >Defensive Strategies of Puerto Rican Dwarf Geckos (Sphaerodactylus macrolepis) Against Invasive Fire Ants
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Defensive Strategies of Puerto Rican Dwarf Geckos (Sphaerodactylus macrolepis) Against Invasive Fire Ants

机译：波多黎各侏儒壁虎（Sphaerodactylus macrolepis）对入侵火蚁的防御策略

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摘要

Invasive species present challenges to native organisms and offer unique opportunities to examine adaptations to novel stressors. We studied behavioral responses to invasive Red Imported Fire Ants (Solenopsis invicta) in native Puerto Rican Dwarf Geckos (Sphaerodactylus macrolepis) on Guana Island, British Virgin Islands. Geckos were exposed to no fire ants, few fire ants, or many fire ants. Solenopsis invicta was aggressive toward the geckos and the foraging ants frequently stung Dwarf Geckos, even when far from the mound. Dwarf Geckos displayed an array of anti-ant behaviors including consuming fire ants, flicking ants away with their limbs and/or tail, and rapidly fleeing attacking ants. These behaviors were elicited more frequently when more fire ants were encountered. Despite being stung often and by as many as nine fire ants, none of the tiny geckos died. Future research could usefully explore potentially delayed effects of fire ant envenomation and the impacts of fire ants on these geckos via egg predation or competition for invertebrate prey.
机译：入侵物种对本地生物提出了挑战，并为研究对新压力源的适应性提供了独特的机会。我们研究了英属维尔京群岛瓜纳岛的波多黎各侏儒壁虎（Sphaerodactylus macrolepis）对入侵性红火蚁（Solenopsis invicta）的行为反应。壁虎没有接触火蚁，很少接触火蚁，或者接触很多火蚁。Solenopsis invicta 对壁虎具有攻击性，觅食的蚂蚁经常蜇伤侏儒壁虎，即使远离土丘也是如此。侏儒壁虎表现出一系列反蚂蚁行为，包括吃火蚁，用四肢和/或尾巴甩开蚂蚁，以及迅速逃离攻击的蚂蚁。当遇到更多的火蚁时，这些行为会更频繁地被引发。尽管经常被多达九只火蚁蜇伤，但这些小壁虎都没有死亡。未来的研究可以有效地探索火蚁毒液中毒的潜在延迟影响，以及火蚁通过卵捕食或竞争无脊椎动物猎物对这些壁虎的影响。

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