Predictive potential distribution modeling is of increasing importance in modern herpetological studies and determination of environmental and conservation priorities. In this article we provided results of analysis a...Predictive potential distribution modeling is of increasing importance in modern herpetological studies and determination of environmental and conservation priorities. In this article we provided results of analysis and forecasts of the potential distribution of smallscaled rock agama Paralaudakia microlepis （Blanford, 1874） using the distribution models through Maxent （www.cs.princeton.edu/- schapire / maxent）. We made an attempt for comparison of input of bioclimatic factors and characteristics of biotope distribution for three species of genus Paralaudalda. Constructed model identified dissemination of Paralaudakia microlepis enough performance （AUC = 0.972 with dispersion 0.003）. According to the map constructed, the most suitable habitats of smallscaled rock agama Paralaudakia microlepis are located in southern and eastern Iran, the west of central Pakistan and southeastern Afghanistan.展开更多
We describe the complete mitochondrial genome of a small-scaled forest agamid （Pseudocalotes microlepis）, which is 17 873 bp in size, containing 13 PCGs, 2 rRNAs, 22 tRNAs and non-coding regions. The mitogenome has ...We describe the complete mitochondrial genome of a small-scaled forest agamid （Pseudocalotes microlepis）, which is 17 873 bp in size, containing 13 PCGs, 2 rRNAs, 22 tRNAs and non-coding regions. The mitogenome has a typical gene order among squamates. 13 PCGs include 2 start codons （ATG and ATA）, 3 stop codons （TAG, TAA and AGG）, and an incomplete stop codon （T-）. Codon usage analyses showed that CUA-Leul and CGG-Arg are the most frequently and rarely used codon, respectively. All 22 tRNAs were predicted to form canonical cloverleaf secondary structures, except for two tRNAs （tRNAcys and tRNASer （AGY）） lacking the dihydorouridine （DHU） arm. The large non- coding region （control region） is 2 687 bp long （28.3% T, 18.2% C, 42.3% A, and 11.2% G）, with four different types of repeating sequences. The phylogenetic tree resulting from BEAST analyses based on concatenated 2 rRNAs and 13 PCGs in sequence revealed that the newly sequenced P. microlepis, where the genus Acanthosaura were aggregated. Together with Calotes versicolor, they constitute the subfamily Draconinae.展开更多
A new subspecies of Laudakia microlepis（Blanford, 1874） is described, from Taftan Mountain in southeastern Iran, based on morphological and genetic characteristics. This new subspecies is distinguished from the nomi...A new subspecies of Laudakia microlepis（Blanford, 1874） is described, from Taftan Mountain in southeastern Iran, based on morphological and genetic characteristics. This new subspecies is distinguished from the nominal subspecies by having a yellowish head along with the following combination of characters： a relatively larger body size; different number of scales around middle of body; larger, weakly keeled, dorsal median scales arranged in 11–13 oblique longitudinal rows; 123–136 scales in a single row from posterior edge of gular fold to vent; 27–31 scales in the first complete whorl around the tail. The type locality of Laudakia microlepis taftanica ssp. nov., is hereby, reported as the Taftan Mountain, about 300 kilometer southeast of the nominal subspecies known range.展开更多
Opsaridium microlepis migrates for spawning during the rainy season （November to May） to major affluent rivers. Linthipe River is one of the major rivers, into which this species migrates. Determination of reproduct...Opsaridium microlepis migrates for spawning during the rainy season （November to May） to major affluent rivers. Linthipe River is one of the major rivers, into which this species migrates. Determination of reproductive seasonality of O. microlepis is paramount in the improved management of this endangered species. Reproductive seasonality ofO. microlepis in the Linthipe River in Central Malawi was estimated using 546 specimens for 12 months. The GSI （Gonadosomatic Index） ranged between 5.6% and 13% for females and between 0.3% and 1.4% for males, respectively. GSI variation between the months was significantly different （one-way ANOVA （analysis of variance）, P 〈 0.05）. The peak breeding activity was observed between January to April. This was at the onset of rainy season while the condition factor of O. microlepis was found to be variable with lowest value in the month of August. The study revealed that for O. microlepis fishery to be sustainably exploited, proper management regimes should be instituted along the migratory rivers during the peak breeding periods. These sustainable methods need to be managed in a participatory manner together with the majority of people living along these rivers.展开更多
基金partially supported by grants from the Russian Foundation for Basic Research to NBA (Project 12-04-00057)the Scientific School Support Program (NSh- 2990.2014)
文摘Predictive potential distribution modeling is of increasing importance in modern herpetological studies and determination of environmental and conservation priorities. In this article we provided results of analysis and forecasts of the potential distribution of smallscaled rock agama Paralaudakia microlepis （Blanford, 1874） using the distribution models through Maxent （www.cs.princeton.edu/- schapire / maxent）. We made an attempt for comparison of input of bioclimatic factors and characteristics of biotope distribution for three species of genus Paralaudalda. Constructed model identified dissemination of Paralaudakia microlepis enough performance （AUC = 0.972 with dispersion 0.003）. According to the map constructed, the most suitable habitats of smallscaled rock agama Paralaudakia microlepis are located in southern and eastern Iran, the west of central Pakistan and southeastern Afghanistan.
基金provided by grant from Zhejiang Provincial Natural Science Foundation to Longhui LIN (LY17C030003)grants from the National Natural Science Foundation of China (31270571 and 31670422)
文摘We describe the complete mitochondrial genome of a small-scaled forest agamid （Pseudocalotes microlepis）, which is 17 873 bp in size, containing 13 PCGs, 2 rRNAs, 22 tRNAs and non-coding regions. The mitogenome has a typical gene order among squamates. 13 PCGs include 2 start codons （ATG and ATA）, 3 stop codons （TAG, TAA and AGG）, and an incomplete stop codon （T-）. Codon usage analyses showed that CUA-Leul and CGG-Arg are the most frequently and rarely used codon, respectively. All 22 tRNAs were predicted to form canonical cloverleaf secondary structures, except for two tRNAs （tRNAcys and tRNASer （AGY）） lacking the dihydorouridine （DHU） arm. The large non- coding region （control region） is 2 687 bp long （28.3% T, 18.2% C, 42.3% A, and 11.2% G）, with four different types of repeating sequences. The phylogenetic tree resulting from BEAST analyses based on concatenated 2 rRNAs and 13 PCGs in sequence revealed that the newly sequenced P. microlepis, where the genus Acanthosaura were aggregated. Together with Calotes versicolor, they constitute the subfamily Draconinae.
文摘A new subspecies of Laudakia microlepis（Blanford, 1874） is described, from Taftan Mountain in southeastern Iran, based on morphological and genetic characteristics. This new subspecies is distinguished from the nominal subspecies by having a yellowish head along with the following combination of characters： a relatively larger body size; different number of scales around middle of body; larger, weakly keeled, dorsal median scales arranged in 11–13 oblique longitudinal rows; 123–136 scales in a single row from posterior edge of gular fold to vent; 27–31 scales in the first complete whorl around the tail. The type locality of Laudakia microlepis taftanica ssp. nov., is hereby, reported as the Taftan Mountain, about 300 kilometer southeast of the nominal subspecies known range.
文摘Opsaridium microlepis migrates for spawning during the rainy season （November to May） to major affluent rivers. Linthipe River is one of the major rivers, into which this species migrates. Determination of reproductive seasonality of O. microlepis is paramount in the improved management of this endangered species. Reproductive seasonality ofO. microlepis in the Linthipe River in Central Malawi was estimated using 546 specimens for 12 months. The GSI （Gonadosomatic Index） ranged between 5.6% and 13% for females and between 0.3% and 1.4% for males, respectively. GSI variation between the months was significantly different （one-way ANOVA （analysis of variance）, P 〈 0.05）. The peak breeding activity was observed between January to April. This was at the onset of rainy season while the condition factor of O. microlepis was found to be variable with lowest value in the month of August. The study revealed that for O. microlepis fishery to be sustainably exploited, proper management regimes should be instituted along the migratory rivers during the peak breeding periods. These sustainable methods need to be managed in a participatory manner together with the majority of people living along these rivers.
