New records and a notable observation of potentially predator-avoiding amplectic behaviour in Boophis erythrodactylus from Madagascar

IF 0.8 4区 生物学 Q3 ZOOLOGY African Journal of Herpetology Pub Date : 2022-04-14 DOI:10.1080/21564574.2022.2055653
R. Abraham, C. Hutter
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Abstract

ABSTRACT The Red-fingered Bright-eyed Frog Boophis erythrodactylus is an endemic, range-restricted arboreal frog found only in the eastern rainforests of Madagascar. We report new localities for this species, along with locality records for its sister species B. tasymena, including localities where they occur in sympatry, which has never been reported before. We also document evidence for the existence of a colour variant of B. tasymena that is identical to B. erythrodactylus in appearance. We also observed never before documented breeding behaviour in the poorly known B. erythrodactylus, where the male and female in amplexus used a submerged site in a river potentially for oviposition. We also explore why this may be a predator-avoidance strategy considering the presence of aquatic invertebrate predators active near the surface and absence of fully aquatic vertebrate predators, such as fish in headwater stream habitats. Predator-avoidance strategies are a vital component of organismal survival, particularly for amphibians with complex life cycles. Natural history observations are key to revealing such strategies and behaviour, and they form the basis of evolutionary biology and is also fundamental for conservation management.
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马达加斯加红指Boophis erythdactylus潜在捕食者回避示例行为的新记录和显著观察
红指亮眼蛙红指亮眼蛙是一种特有的、活动范围有限的树栖蛙,仅在马达加斯加东部雨林中发现。我们报告了该物种的新地点,以及其姊妹种B. tasymena的地点记录,包括它们在同属中发生的地点,这是以前从未报道过的。我们还记录了一种与红趾双歧杆菌外观相同的色变双歧杆菌存在的证据。我们还观察到以前从未有文献记载的鲜为人知的红趾b虫的繁殖行为,在那里,雄性和雌性的amplexus在一条河的一个潜在的水下地点产卵。我们还探讨了为什么这可能是一种捕食者-回避策略,考虑到在水面附近活动的水生无脊椎动物捕食者的存在,以及在源头流栖息地中缺乏完全水生脊椎动物捕食者(如鱼类)。捕食者-躲避策略是生物体生存的重要组成部分,特别是对于具有复杂生命周期的两栖动物。自然历史观察是揭示这些策略和行为的关键,它们构成了进化生物学的基础,也是保护管理的基础。
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来源期刊
CiteScore
3.00
自引率
6.70%
发文量
15
审稿时长
>12 weeks
期刊介绍: African Journal of Herpetology (AJH) serves as an outlet for original research on the biology of African amphibians and reptiles. AJH is an interdisciplinary journal that publishes original articles and reviews from diverse fields and disciplines, such as conservation, phylogenetics, evolution, systematics, performance, physiology, ecology, behavioural ecology, ethology, and morphology. The Journal publishes two issues a year. There are no page charges .
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