Fortune may favor the flexible: environment-dependent behavioral shifts in invasive coquí frogs.

IF 2 2区 生物学 Q2 ZOOLOGY
Current Zoology Pub Date : 2024-09-27 eCollection Date: 2025-06-01 DOI:10.1093/cz/zoae055
Katharina M Soto, Devin Edmonds, Andrea L Colton, Michael R Britton, Faith O Hardin, Eva K Fischer
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Abstract

Biological invasions are a major driver of global biodiversity loss, impacting endemic species, ecosystems, and economies. Although the influence of life history traits on invasive success is well-established, the role of behavior in the invasive potential of animals is less studied. The common coquí frog, Eleutherodactylus coqui, is a highly successful invader in Hawai'i. We build on previous research characterizing changes in physiology and morphology to explore behavioral variation across the invasive range of coquí in Hawai'i. Coquí have expanded both outward and upward from their initial introduction site, and-by comparing frogs from different densities and elevations-we specifically asked how the physiological challenges of high-elevation living interact with the competitive challenge of high-densities at population centers. To investigate whether differences in the field represent local adaptation or behavioral plasticity, we additionally evaluated behavior following acclimation to a shared laboratory environment. Although we identified only subtle behavioral variation among populations in the field, we found that individuals from all populations became less bold, active, and exploratory in the laboratory, converging on a similar behavioral phenotype. Alongside previous work, our results suggest that coquí adjust their behavior to local environmental conditions across their invasive range and that behavioral flexibility may contribute to invasive success.

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在入侵的coquí青蛙中,命运可能会倾向于灵活的:依赖环境的行为转变。
生物入侵是全球生物多样性丧失的主要驱动因素,影响特有物种、生态系统和经济。虽然生命史特征对入侵成功的影响是公认的,但行为在动物入侵潜力中的作用研究较少。常见的coquí蛙,Eleutherodactylus coqui,是夏威夷非常成功的入侵者。我们在先前的研究基础上描述了生理和形态的变化,以探索夏威夷coquí入侵范围内的行为变化。Coquí已经从最初的引进地点向外和向上扩展,并且通过比较来自不同密度和海拔的青蛙,我们特别询问了高海拔生活的生理挑战如何与人口中心高密度的竞争挑战相互作用。为了研究野外差异是否代表了局部适应或行为可塑性,我们还评估了适应共享实验室环境后的行为。虽然我们在野外只发现了种群之间细微的行为差异,但我们发现,在实验室中,所有种群的个体都变得不那么大胆、活跃和探索性,趋同于相似的行为表型。除了之前的工作,我们的结果表明coquí在其入侵范围内调整其行为以适应当地环境条件,行为灵活性可能有助于入侵成功。
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来源期刊
Current Zoology
Current Zoology Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
3.20
自引率
9.10%
发文量
111
审稿时长
6 weeks
期刊介绍: About the Journal Current Zoology (formerly Acta Zoologica Sinica, founded in 1935) is an open access, bimonthly, peer-reviewed international journal of zoology. It publishes review articles and research papers in the fields of ecology, evolution and behaviour. Current Zoology is sponsored by Institute of Zoology, Chinese Academy of Sciences, along with the China Zoological Society.
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