Acta Herpetologica 10(2)

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One scute ring per year in Testudo graeca? A novel method to identify ring deposition patterns in tortoises.

Roberto Rodríguez-Caro, Eva Graciá, Renata Morais Dos Santos, José D. Anadón and Andrés Gimenez. 2015. Acta Herpetologica. 10 (2): 77-84. A reliable estimation of individuals’ age is helpful to conduct demographic studies on wildlife populations. In tortoises, many studies have estimated individuals’ age by counting growth rings on their scutes, assuming one ring per year (1:1 ratio). However, the accuracy of this method is controversial. The ring deposition pattern can vary
depending on species, or even populations, and should be studied comprehensively. We studied the ring deposition pattern of Testudo graeca in southeastern Iberian Peninsula, using recaptures of 156 individuals between 2004 and 2010. Leer más.

Variation of growth rate and survival in embryos and larvae of Rana temporaria populations from the Pyrenees.

Oromi, Neus, Sebastià Camarasa, Isabel Sanuy and Delfi Sanuy. 2015. Acta Herpetologica. 10 (2): 85-91. In the present study, we analysed the effects of temperature on several embryonic and larval traits (survival, development and growth rate until the metamorphosis) of Rana temporaria in two populations living at different altitude (1540 and 2100 m) in the Pyrenees. Leer más.

Where to look when identifying roadkilled amphibians?

Franch, Marc, Cristiano Silva, Gil Lopes, Fernando Ribeiro, Paulo Trigueiros, Luis Seco and Neftalí Sillero. 2015. Acta Herpetologica 10(2). Our main goal here was to give a numerical priority sequence of particular characteristics of roadkilled amphibians to improve the computing and learning process of algorithms. We asked hundred and five amateur and professional herpetologists to answer a simple test of five sets with ten images each of roadkilled amphibians, in order to determine which body parts or characteristics (body form, colour, and other patterns) are used to identify correctly the species. Leer más.

Ansonia smeagol • The Phylogenetic Relationships of A New Stream Toad of the Genus Ansonia Stoliczka, 1870 (Anura: Bufonidae) from A Montane Region in Peninsular Malaysia

Twelve species of Ansonia occur on the Thai-Malay peninsula, of which, five from Peninsular Malaysia, form a monophyletic group. One of these, A. jeetsukumarani, is endemic to the Titiwangsa Mountain Range, in which, we discovered a new population of Ansonia that is not A. jeetsukumarani or even its closest relative. Based on morphology, color pattern, and molecular phylogenetic analyses using the mitochondrial genes 12s and 16s rRNA, we have determined that this new species, Ansonia smeagol sp. nov., forms the sister lineage to an upland, monophyletic group composed of A. jeetsukumarani, A. lumut, A. malayana, and A. penangensis. Leer más.