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Behavioral differences among mutualist species in a shrimp-goby association

机译:虾虎虾协会中互惠物种之间的行为差​​异

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摘要

Alpheid shrimps and gobiid fishes engage in a mutualism in which shrimp construct burrows that are co-habited with gobies and used as refuge from predators by both. Gobies act as sentinels for shrimp. In the western Atlantic, different goby species have been hypothesized to have a facultative (Ctenogobius saepepallens) and obligate (Nes longus) association with the shrimp Alpheus floridanus. I compared various behaviors among these 2 gobies and another goby that occasionally associates with shrimp (Coryphopterus glaucofraenum). The putatively obligate goby had the greatest preference for shrimp burrows versus other shelters, had the greatest partner fidelity, and facilitated more emergence by shrimp by remaining for longer periods at shrimp burrow entrances. These findings provide evidence that in shrimp-goby mutualism, the more specialized and dependent mutualist gobies provide greater services to their shrimp partners.
机译:Alpheid虾和gobiid鱼类参与了一种共生关系,在这种共生中,虾构建了与gobie同居的洞穴,并被双方用作避难者的避难所。虾虎鱼充当虾的哨兵。在西大西洋,已假设不同的虾虎鱼种类与虾Al(Alpheus floridanus)具有兼性(Ctenogobius saepepallens)和专性(Nes longus)联系。我比较了这两个虾虎鱼和另一只偶尔与虾有关的虾虎鱼的行为。相对于其他庇护所,假定的专长虾虎鱼对虾洞穴的偏好最大,其伙伴保真度最大,并且通过在虾洞穴入口停留更长的时间来促进虾的更多出苗。这些发现提供了证据,证明在虾虎鱼共生中,更加专业和相互依存的虾虎鱼为虾虾伴侣提供了更好的服务。

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