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Species on the rocks: Delimiting species in the Ptyodactylus hasselquistii complex (Reptilia: Gekkota)

Autor Metallinou, Margarita ; Wilms, Thomas; Červenka, H.; Kratochvíl, Lukáš; Schmitz, Andreas; Carranza, Salvador
Fecha de publicación ene-2012
Citación I Congreso Ibérico de Sistemática Animal (2012)
ResumenIn order to understand the evolutionary processes, study the biogeographical patterns and conduct conservation planning, it is of fundamental importance to define species boundaries and identify independent evolutionary units. From morphology-based classical approaches to modern molecular systematics, there exist nowadays a variety of species delimitation methods. In this context, the concept of Integrative Taxonomy advocates the combined use of these methods in order to achieve the recognition and diagnosis of the species based on multiple independent sets of characters. The geckos of the genus Ptyodactylus are specialized rock dwellers distributed widely across Arabia and North Africa. Among its seven currently described species, the P. hasselquistii species complex members are found in eastern North Africa and the entire Arabian Peninsula. We examined the phylogenetic relationships of the genus based on a dataset of 103 samples and six molecular markers (12S, cytb, C-mos, ACM4, MC1R, RAG-2). The existence of numerous deep lineages within the complex was uncovered. We then applied molecular species delimitation methods in order to investigate the speciation history of P. hasselquistii based on the molecular evidence. Additionally, a morphological analysis of 177 specimens was also carried out using multivariate methods and morphologically distinguishable units were defined. Results among the different methods are highly congruent and point toward the existence of several undescribed species.
Descripción Trabajo presentado en el I Congreso Ibérico de Sistemática Animal (CISA2012), celebrado en Madrid del 17 al 19 de enero de 2012.
URI http://hdl.handle.net/10261/107870
Aparece en las colecciones: (IBE) Comunicaciones congresos
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