Filipe Gomes de Almeida, François Ciavatti, Angélica Pulido, Thomas Gendre, P. Geniez, Aimeric Eble, Elise Leblanc, Yoann Mansier, Ivain Martinossi-Allibert, Blaise Raymond, Adrien Pineau, Jérémie Demay, P. Crochet
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引用次数: 0
摘要
Pelophylax 属包括两个由 Pelophylax ridibundus 与其他物种杂交产生的主要杂交系统:P. lessonae-esculentus(LE)系统和 P. perezi-grafi(PG)系统,其分布范围部分(LE)或全部(PG)位于 P. ridibundus 的自然分布区之外。在这些杂交系统自然栖息的许多地区,P. ridibundus 的引入和随后的扩展导致其减少或局部灭绝。对这些系统进行有效的种群调查和采取保护措施的主要障碍之一是,由于它们形态相似且发声记录较少,很难进行可靠的物种鉴定,尤其是对 PG 系统。我们这项工作的目的是设计一种可靠的声学识别方法,以区分构成杂交系统的类群与 P. ridibundus,并评估通过发声区分 PG 和 LE 系统的可能性。事实证明,我们的声学识别方法能非常准确地将 PG 和 LE 系统与 P. ridibundus 区分开来,但只有一部分 PG 和 LE 的叫声能被识别出来。
Acoustics of parental and hybridogenetic water frogs (Pelophylax: Amphibia: Ranidae): a tool for monitoring an invasive species
The Pelophylax genus comprises two main hybridogenetic systems resulting from hybridization between Pelophylax ridibundus and other species: the P. lessonae-esculentus (LE) system and the P. perezi-grafi (PG) system, whose distribution ranges lie partly (LE) or entirely (PG) outside the natural distribution of P. ridibundus. The introductions and subsequent expansions of P. ridibundus in many areas naturally inhabited by these hybridogenetic systems have led to their decrease or local extinction. One of the major impediments to efficient population surveys and conservation measures for these systems is the difficulties of reliable species identification due to their similar morphology and poorly documented vocalizations, especially for the PG system. Our aim in this work was to design a reliable method of acoustic identification to distinguish the taxa composing the hybridogenetic systems from P. ridibundus and to assess the possibility of separating the PG and LE systems by their vocalizations. Our acoustic identification methods proved highly accurate to separate the PG and LE systems from P. ridibundus but only a fraction of the PG and LE calls can be identified.
期刊介绍:
Amphibia-Reptilia is a leading European multi-disciplinary journal devoted to most of the aspects of herpetology: ecology, behaviour, evolution, conservation, physiology, morphology, paleontology, genetics, and systematics.
Amphibia-Reptilia publishes high quality original papers, short-notes, reviews, book reviews and news of the Societas Europaea Herpetologica (SEH). The Societas Europaea Herpteologica (SEH) website is located at: www.seh-herpetology.org.