Modeling the Past and Current Distribution and Habitat Suitability for Ablepharus grayanus and A. pannonicus (Sauria: Scincidae)

Study of the climate variability in the past and present, and correlating those with changes in the distribution range of species has attracted considerable research interest. The genus Ablepharus consists of 10 recognized species, of which A. bivittatus, A. grayanus and A. pannonicus are documented from Iran. In the present study, we modeled with MaxEnt the potential distribution areas and determined the suitable habitats in past (mid-Holocene [MH], and the Last Interglacial [LIG]) and their current distribution for two species of snake-eyed skinks (A. grayanus and A. pannonicus) separately. Models of the species indicated good fit by the average high area under the curve (AUC) values (A. grayanus = 0.929 ± 0.087 and A. pannonicus = 0.979 ± 0.007). Precipitation of the driest quarter of the year, mean temperature of the coldest quarter of the year, and precipitation of the driest month variables made important contributions to A. grayanus. Two important climate variables contributed importantly to A. pannonicus; temperature seasonality, and mean temperature of the wettest quarter of the year, and one topographic variable, slope. We conclude that these variables form a natural barrier for species dispersal. The MH and the LGM models indicated a larger suitable area than the current distribution

Molecular systematics of the genus Pseudocerastes (Ophidia: Viperidae) based on the mitochondrial cytochrome b gene

The false horned vipers of the genus Pseudocerastes consist of 3 species; all have been recorded in Iran. These include Pseudocerastes persicus, P. fieldi, and P. urarachnoides. Morphologically, the taxonomic border between P. fieldi and P. persicus is not as clear as that between P. urarachnoides and P. persicus or P. fieldi. Regarding the weak diagnostic characters differentiating P. fieldi from P. persicus and very robust characters separating P. urarachnoides from both, there may arise some uncertainty in the exact taxonomic status of P. urarachnoides and whether it should remain at the current specific level or be elevated to a distinct genus. Based on our sequence data from the mitochondrial cytochrome b gene, the taxonomic status of the 3 false horned vipers is confirmed. Although P. fieldi has equal genetic distance from P. persicus and P. urarachnoides, the spider-tailed viper is more closely related to P. persicus than P. fieldi. There are also some subdivisions among the populations of P. persicus in Iran

A Review on Taxonomy and Distribution of the Genus Echis Merrem, 1820 (Serpentes: Viperidae) with Special Reference to the Middle East.

Saw scaled vipers of the genus Echis belong to the family Viperidae and subfamily Viperinae. These vipers are widely distributed from East Africa to Southwest and Central Asia. Echis bite is one of the major causes of mortality in the world. Different populations of these medically important snakes have different venom composition, and the relevant antivenom is highly species-specific. Echis has a complex taxonomic history. For many years, only two species were recognized (i.e., Echis coloratus and E. carinatus). Over the past 50 years, the number of species have been raised to 12, of which six species reside in the Middle East. Phylogenetic studies show that the genus Echis fall into four species groups: the E. carinatus, E. coloratus, E. ocellatus and E. pyramidum groups. Until recently, only E. carinatus in Southwest Asia and India and E. coloratus in Arabia were assigned to the Middle East. Several morphological and phylogenetic studies raised the number of Echis species in the Middle East from two to six. These Middle Eastern vipers belong to three different species groups. An Asian, an Arabian and an African group. Distribution and basal split of the genus Echis, likely have been shaped by vicariance and tectonic events, which have separated or connected the land masses. In this study, a brief review on biogeography, taxonomy and distribution of the genus especially in the Middle East is presented

A review on the genus Trapelus Cuvier, 1817 (Sauria: Agamidae) in the Iranian Plateau

The genus Trapelus Cuvier, 1817, belonging to the subfamily Agaminae, is described with 13 species. There are absolutely four species in Iran: T. agilis, T. ruderatus, T.sanguinolentus and T. persicus. Within the vast distribution range of Trapelus, current and past climate and vicariance events have significantly influenced their diversification patterns and distributions. Recently, the first and the most comprehensive assessment based on molecular genetic analyses within T. ruderatus in western Asia including Iran, Turkey, Syria, and Iraq, has shown that Iranian populations have slight divergence whereas are undoubtedly isolated from Turkey's population. Also, this study introduced the populations of southern Iraq as belonging to T. persicus. In this review, we have tried to have a complete examination and comparison based on all of the available relevant literature about the taxonomy, phylogeny, evolutionary history, and biogeography of the genus Trapelus in the Iranian plateau and neighboring regions, as well as we examined the controversial nomenclature changes and their reasons in some species and subspecies of this genus. We will also give a brief overview of our unpublished dissertation on comparative morphology and dimorphism in the genus T. ruderatus. In the end, we present an identification key based on the latest changes in the classification and taxonomy of the genus

Modeling the Past and Current Distribution and Habitat Suitability for Two Snake-eyed Skinks, <em>Ablepharus grayanus</em> and <em>A. pannonicus</em> (Sauria: Scincidae)

The study of the climate variability in the past and present, correlating those with changes in the distribution range of species, has attracted considerable research interest. The genus Ablepharus consists of 10 recognized species, of which A. bivittatus, A. grayanus, and A. pannonicus are documented from Iran. In the present study, we modeled with MaxEnt the potential distribution areas and determined the suitable habitats in the past [mid-Holocene (MH) and the last interglacial (LIG)] and their current distribution for two species of snake-eyed skinks (A. grayanus and A. pannonicus) separately. Models of the species indicated good fit by the average high area under the curve (AUC) values (A. grayanus = 0.929 ± 0.087 and A. pannonicus = 0.979 ± 0.007). Precipitation of the driest quarter of the year, mean temperature of the coldest quarter of the year, and precipitation of the driest month variables made important contributions to A. grayanus. Two important climate variables contributed importantly to A. pannonicus: temperature seasonality and mean temperature of the wettest quarter of the year and one topographic variable, slope. We conclude that these variables form a natural barrier for species dispersal. The MH and the LIG models indicated a larger suitable area than the current distribution

Interspecific variation within the genus Ophiomorus DUMÉRIL & BIBRON, 1839 (Sauria: Scincidae) in Iran based on morphological characters

Many studies conducted on range of animals showed that morphology is related to habitat. In the present study, we aimed to examine the morphological characteristics of species assigned to the genus Ophiomorus in Iran. Seventy-one specimens from throughout the range of distribution in the central plateau of Iran were investigated. Eleven morphometric and four meristic variables were analyzed independently. Multivariate analyses were performed using canonical variate analysis (CVA) and principal component analysis (PCA). The results showed that there is significant morphological differentiation between three species groups brevipes, tridactylus, and punctatissimus in this genus in relation to habitat choice. ANOVA results showed that 14 morphological characters (SVL, HL, HW, HH, SL, LF, LA, LFL, LFH, LHF, NSL, NDSB, NMC, and NIL; 10 metric and four Meristic) were significantly different among all Ophiomorus species, which based on this, TL did not show a significant difference among species. Finally, we assigned three species groups based on limb reduction (especially fingers), and habitat surface (comparison based on habitat observations) for all Ophiomorus species in Iran. In addition, using newly applied morphological characteristics we proposed an updated identification key for the genus

A report on Platyceps ventromaculatus (Colubridae) from Fereydan County in Isfahan province-Iran

Snakes are among the predatory reptiles in the wild. Due to the importance of knowing the habitats of these reptiles and their distribution, this study has been done. During the study, the specimen snake was found in the garden of a house in the region of Afus, of Fereydan County, in the west of Isfahan province. The city of Afus is 2800 meters above the sea level, on the roof of Iran. Afus is located at 50°5’, 646 East longitude, and at 33°1’, 464 North Latitude. Afus is a mountainous region with a moderate climate, its winters are cold and snowy while its summers are mild and pleasant. The mountainous nature of Afus and the sudden changes in temperature cause seasonal winds to blow. Temperature changes in this city are such that in winter and especially in January reaches minus 30°C and in summer and on the hottest day of the year will be 31°C. This suitable climate and soil type cause the growth of varieties of herbaceous plants and medicinal herbs in this region. The presence of these plants causes Afus land to be green and fertile in the hot season. After initial identification of this species according to the available sources, its photos and videos were presented to a high expert herpetologist who confirmed the identity of the snake. On the basis of morphological characters, the specimen was Platyceps ventromaculatus belong to the Colubridae family and is considered as a non-venomous snake

A new species of Eremias (Sauria: Lacertidae) from highlands of Kermanshah Province, western Iran

Volume: 9Start Page: 107End Page: 11

Two new subspecies of Trapelus agilis complex (Sauria: Agamidae) from lowland southwestern Iran and southeastern Pakistan

Volume: 8Start Page: 90End Page: 10