Acta Herpetologica <div> <p><em>Acta Herpetologica</em>, a journal open to academics all over the world, offers itself as a new site for the presentation and discussion of the most recent results in the field of research on Amphibians and Reptiles, both living and extinct. The official journal of the&nbsp;<em>Societas Herpetologica Italica</em>&nbsp;(S.H.I.), Acta Herpetologica publishes original works – extended articles, short notes and book reviews – mostly in English, dealing with the biology and diversity of Amphibians and Reptiles.</p> </div> <p><br><strong>Editor in Chief</strong><br>Marco Mangiacotti, Università degli Studi di Pavia, Italy</p> en-US <p>Authors retain the copyright and grant the journal right of first publication with the work simultaneously licensed under a <strong>Creative Commons Attribution 4.0 International Public License (<a href="">CC-BY-4.0</a>)</strong> that allows others to share the work with an acknowledgment of the work's authorship and initial publication.</p> <p><a href="" rel="license"><img src="" alt="Creative Commons License"></a><br>This work is licensed under a <a href="" rel="license">Creative Commons Attribution 4.0 International License</a></p> (Marco Mangiacotti) (Alessandro Pierno) Thu, 08 Jul 2021 08:44:01 +0000 OJS 60 Microhabitat segregation of two coexisting tadpole species on Emei Mountain <p class="p1">Understanding mechanisms determining the coexistence between different species is one of the key issues in community ecology and biodiversity conservation. Microhabitat segregation is a way for species to coexist, which reflects the specific habitat selection of coexisting species in a finer spatial scale. Despite quantitative studies have been conducted to investigate the microhabitat segregation of coexisting species, this type of studies was not often performed on tadpoles. In this study, we assessed the habitat selection of two coexisting tadpoles (<span class="s1">Quasipaa boulengeri</span> and <span class="s1">Leptobrachium boringii</span>) in a stream on Emei Mountain, China. Our results demonstrated that <span class="s1">L. boringii</span> and <span class="s1">Q. boulengeri</span> tadpoles occupied different microhabitats. Specifically, <span class="s1">Q. boulengeri</span> tadpoles preferred deep, narrow, and weak acid stream segments with slow current velocity and low value of conductivity, while <span class="s1">L. boringii</span> tadpoles tended to occur in a wide, shallow water bodies with relatively higher pH, conductivity, and current velocity. Overall, our study supported the Hutchinson’s niche concept, showing that at least one dimension of niche differentiation (i.e., microhabitat) occurred between coexisting tadpole species.</p> Zijian Sun, Chunlin Zhao, Dan Xu, Wenbo Zhu, Wenbo Fan, Tian Zhao, Shengqi Su Copyright (c) 2021 Zijian Sun, Chunlin Zhao, Dan Xu, Wenbo Zhu, Wenbo Fan, Tian Zhao, Shengqi Su Wed, 05 May 2021 00:00:00 +0000 Morphometric differentiation and sexual dimorphism in Limnomedusa macroglossa (Duméril & Bibron, 1841) (Anura: Alsodidae) from Uruguay <p class="p1">Intersexual morphological differences within a species occur in many traits, including body size and shape. Many processes that cause geographic variability in morphology have been proposed: population structure, phenotypic plasticity (environmental effects on development), and natural and/or sexual selection. Several hypotheses can explain patterns of sexual dimorphism in anurans, including natural or intra/inter-sexual selection, and differences in life history strategies between sexes. <span class="s1">Limnomedusa macroglossa</span> is considered a habitat specialist restricted to rocky outcrops in Brazil, Argentina, Paraguay, and Uruguay. We evaluated the extent of sexual (size and shape) dimorphism in <span class="s1">L. macroglossa</span> from Uruguay based on morphometrics and secondary sexual characteristics, while taking into account geographic variation. Sexual dimorphism in body size of adults was found, but multivariate analyses did not demonstrate the existence of significant differences in shape. There were also significant differences in body size and hind leg measurements among six hydrographic basins as a result from the phenotypic plasticity correlated with local temperature, representing a clinal variation along the latitudinal gradient of Uruguay. The sexual dimorphism found in body size is probably the consequence of higher growth rates and/or late sexual maturity in females, which favors larger body size for accommodating larger ovaries, and thus, higher reproductive output.<span class="Apple-converted-space">&nbsp;</span></p> Valeria de Olivera-López, Arley Camargo, Raúl Maneyro Copyright (c) 2021 Valeria de Olivera-López Tue, 11 May 2021 00:00:00 +0000 Reptile diversity in a Mediterranean wetlands landscape (Alto Guadalquivir region, southeastern Spain): are they affected by human impacts? <p class="p1">This study was carried out to evaluate the diversity in reptile communities in wetland landscapes located in the Mediterranean region. For this, the status of the reptile populations linked to different Mediterranean wetlands in relation to the different types of land use established in the nearby drainage basins (500 m around the wetlands perimeter) was determined. The different types of land use were determined together with the presence/absence, abundance and size class of the different reptile species. The results showed that areas with high anthropic pressure had a lower diversity of species, as well as a less balanced community structure, that could put at risk the effective recruitment and hence the maintenance of the reptile populations in these areas. The reasons behind the decline in the reptile community are similar to those put forward for explaining the decline in amphibians in the same area.</p> Arancha de Castro-Expósito, Enrique García-Muñoz, Francisco Guerrero Copyright (c) 2021 Francisco Guerrero, Arancha de Castro-Expósito, Enrique García-Muñoz Wed, 05 May 2021 00:00:00 +0000 Sex chromosome diversification in the smooth snake Coronella austriaca (Reptilia, Serpentes) <p class="p1"><span class="s1">The smooth snake </span><span class="s2">Coronella austriaca</span><span class="s1"> is a widespread Palearctic colubrid species. The species has been the subject of several molecular and phylogeographic studies which highlighted the occurrence of distinct genetic lineages in different areas of the species distribution, but scarce cytogenetic data are currently available on the species. In this paper we present a molecular and karyological study performed with several banding, staining methods and NOR-FISH on samples of </span><span class="s2">C.</span> <span class="s2">austriaca</span><span class="s1"> from different geographical areas (Italy and Greece) of the species distribution. The molecular and phylogenetic analysis unambiguously placed the studied samples in different clades with a clear geographical pattern. The karyotype of the two female samples studied was composed of 2n = 36 chromosomes with 16 macro- and 20 microchromosomes and a mix of plesiomorphic and derivate chromosome features. All macrochromosomes were biarmed with the exception of pair 5 that was telocentric. NORs were detected on a microchromosome pair. In both females, the pair 4 was heteromorphic (and completely heterochromatic after C-banding in the Italian female), representing the first report of a ZZ/ZW sex chromosome system with female heterogamety in </span><span class="s2">C. austriaca</span><span class="s1">. In addition, the W chromosome showed a different morphology between the two female studied (submetacentric and subtelocentric), highlighting the occurrence of a chromosomal diversification among distinct geographical areas of the species distribution and further supporting that the species contains different diverging evolutionary clades.</span></p> Marcello Mezzasalma, Gaetano Odierna Copyright (c) 2021 Marcello Mezzasalma, Gaetano Odierna Wed, 05 May 2021 00:00:00 +0000 Rana temporaria on Monti della Laga (Central Italy): isolated population or wide distribution? First record in Abruzzo and Marche <p class="p1">In Central Italy <span class="s1">Rana temporaria</span> is only known to occur as a glacial relict on the eastern side of Monti della Laga (Lazio). In this study we report the presence of the species in other areas of the mountain chain, with documented sightings in five distinct localities in Marche and Abruzzo. We use these new records, together with other occurrence data from the Apennine chain, to generate a species distribution model and perform an analysis of the geological preference of the species in Central Italy. Although the model indicates a wide area of Marche and Abruzzo as suitable for <span class="s1">R. temporaria</span>, the actual distribution of the species in northern and central Apennine appears strongly associated with sandstones. Therefore, we argue that the presence of this geological substrate on Monti della Laga, but not in surrounding karst uplands, could be among the factors explaining its isolation. Our study aims at paving the way for future surveys and measures to protect these isolated populations from the threat posed by climate change.</p> Francesco Di Toro, Gianmarco Minuti, Luca Coppari, Matteo De Albentiis, Paolo Laghi, Dino Scaravelli, Valerio Ricciardi, Giacomo Bruni Copyright (c) 2021 Luca Coppari Wed, 05 May 2021 00:00:00 +0000 Flight initiation distance of Urosaurus ornatus from the Sierra de Samalayuca, Mexico <p class="p1">In lizards, flight initiation distance (FID), the distance between a prey individual and a predator when escape begins, can be affected by numerous intrinsic and extrinsic factors, including sex, temperature, and level of conspicuousness. Here we report on a study of FID in a population of Ornate Tree Lizards, <span class="s1">Urosaurus ornatus</span>, from the Sierra de Samalyuca, Chihuahua, Mexico which are cryptic due to their dorsal coloration blending into their background. <span class="s1">Urosaurus ornatus</span> in our study population allowed close approaches (mean FID = 65 cm). Mean FID did not differ between males and females. We also found no effect of body, air, or substrate temperature on FID. The short FID we observed may be related to the cryptic nature of <span class="s1">U. ornatus.</span></p> Julio A. Lemos-Espinal, Geoffrey R. Smith Copyright (c) 2021 Julio Lemos-Espinal, Geoffrey Smith Sun, 11 Apr 2021 00:00:00 +0000 MARIELLA TURRINI – La tartaruga nella cultura dei popoli – Miti, leggende e Folklore <p>None</p> Sebastiano Salvidio, Massimo Delfino Copyright (c) 2021 Sebastiano Salvidio, Massimo Delfino Tue, 11 May 2021 00:00:00 +0000