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Showing 6 results for Rana

Harshil Patel, Raju Vyas, Bhautik Dudhatra, Vaibhav Naik, Ashish Chavda, Devendra Chauhan, Amit Vaghashiya, Ramesh Vagadiya, Pranav Vaghashiya,
Volume 1, Issue 2 (12-2019)
Abstract

The Saurashtra Peninsula, the largest geographical region of Gujarat state, is a prominent place for herpetofauna in the state and recent herpetological explorations have uncovered three new reptilian species from this region. However, fine scale information on the distribution status of amphibians and reptiles, and baseline information about the regional herpetological diversity of many areas of Saurashtra is still lacking. In an attempt to fill the gaps in information, we surveyed the Girnar hill complex of Gujarat state for its herpetofaunal diversity from September, 2016 to August, 2018. In all, 56 species, comprising 10 species of amphibians belonging to 7 genera and 3 families and 46 species of reptiles, belonging to 31 genera and 15 families were recorded; of which, 2 unidentified frog and 2 unidentified lizard species need further taxonomic attention.

Pranav Pandya, Mansi Thakkar, Mansi Goswami,
Volume 3, Issue 2 (6-2021)
Abstract

Natural and human disturbances can affect population and community assemblages in complex ways. The present study was carried out from June 2019 to January 2020, along the Northern Gulf of Kachchh (can also be spelled as Kutch), western India wherein an effort was made to investigate the intertidal assemblage at three distinct but spatially closely located stations (Kathda, Mandvi, and Modhva). The efforts were also made to correlate anthropogenic effects with intertidal assemblage. The Mandvi station served as an anthropogenically active area whereas the other two remained as control stations with minimal disturbance. Replicate quadrat samples on fixed transect lines and wet biomass analyses were carried out for three seasons. In total, 43 species, viz. Mollusca (21), Crustacea (12), Polychaeta (7), Nemertea (1), and fishes (2) were recorded. Cumulatively, during pre-monsoon, post-monsoon and winter, overall population densities ranged from 0 to 999 individuals/m2; biomass from 0 to 899 g/m2, and the Simpson evenness index score remained between 0.15 to 0.89. Overall, high density and diversity were observed during winter (December 2019 and January 2020) with the maximum number of two Mollusc species Umbonium vestiarium and Cerethidia cingulata. High densities were observed at the Modhva station followed by Kathda and Mandvi stations. Relatively lower intertidal macrofaunal diversity and density were clearly observed at Mandvi station which is a famous tourist destination. Comparative data recorded in the present study can serve as a vital baseline and can be a part of future monitoring processes, especially at anthropogenically influenced stations.

Bipana Maiya Sadadev, Thakur Silwal, Bijaya Dhami, Nabaraj Thapa, Bijaya Neupane, Anisha Rana, Harsha Bahadur Singh,
Volume 3, Issue 3 (9-2021)
Abstract

Few researches have been conducted on the hispid hare Caprolagus hispidus, an endangered small mammal native to the southern foothills of the Himalayas. In major protected areas of Nepal, grassland burning has been considered as one of the most important habitat management tools however its effects on grassland dependent species such as hispid hare has been less explored. Thus, this study was conducted to determine the grassland burning practices and its effect on distribution pattern of hispid hare at Shuklaphanta National Park, far-western Nepal. A total of 90 plots were laid in unburned (n= 45) and burned areas (n= 45) from November 2017 to May 2018. Two different approaches of grassland burning were observed: alternate and complete burning. Grassland burns are conducted from November to April each year, which coincides with the prime breeding season of hispid hares. A total of 89 pellet groups were observed in 22 plots out of 45 unburned plots while a total of 56 pellet groups were found in 17 plots out of 45 burned plots, both showing clumped type of distribution pattern of hispid hare in the study site. Higher number of fresh pellets was observed in the unburned plot. In contrast, higher number of old pellets was found in the burned plots. Thus, it is suggested that alternate year burning practices might have more positive effects on distribution and survival of this endangered species, rather than every year.

Dhanapal Sangavi, Padur Sankaranarayanan Anisha, Govindharaj Vinothini, Parthasarathy Thiruchenthil Nathan,
Volume 5, Issue 1 (3-2023)
Abstract

A detailed investigation of the spider diversity in Salem district, Tamil Nadu was carried out across different habitats for a period of five years. A total of 184 spider species belonging to 97 genera in 29 families were recorded, which represented nearly 10% of Indian and 65% of Tamil Nadu spider diversity. Among them 25 spider species are endemic to India. From the 29 families, the 3 most abundant families based on number of specimens sampled were Lycosidae (21%), Araneidae (18%), and Eresidae (17%), constituting 56% of the spider species. Simpson diversity indices ranged between 0.88 to 0.30 for all the studied habitats. The species richness was highest in bamboo fields (2.78), and the lowest was observed in grasslands (0.76). The highest abundance of spider species was observed in the sugarcane fields (0.83), followed by the grasslands (0.57) and paddy fields (0.53). Further, these spiders were categorized into nine types based on their foraging guilds. Among them, the highest species richness was observed in foliage runners. A maximum of nine spider guilds were observed in the shrub ecosystem. Natural ecosystems such as shrublands, treescapes, and grasslands had higher spider diversity than altered agricultural and domestic ecosystems. This is the first report on spider diversity in Salem District, Tamil Nadu revealing the varying spider diversity along with their guild types across different habitats.

Raju Vyas, Vishal Mistry, Pranav Vaghasiya, Devendra Chauhan,
Volume 5, Issue 1 (3-2023)
Abstract

Railway lines, roadways, canals, and electricity cable networks, pose serious problems to wildlife, fragmenting habitats worldwide. These infrastructures are well-recognized as linear intrusions. Today it is a threat to wildlife, including the Mugger or Marsh Crocodile (Crocodylus palustris). The current study documents 15 crocodile-vehicle collisions (CVC) recorded in two years (2021 and 2022); 11 were on roads, and four were on railway tracks. Sex was determined for 11 individuals (five males, six females), and four unknown due to crushing). A total of 13 individuals were found dead at the various sites of collision, and two juvenile individuals were found injured, and one of them was treated successfully and returned to the wild. The high numbers (9) of CVCs occur in the Central Gujarat and follow 3 CVCs in Saurashtra, 2 CVC in the Kutch region, and one in north Gujarat. Mitigation measures would be required for the collision situationsin Gujarat are discussed. The literature survey shows totals of 75 CVCs were recorded within the last 18 years due to the state's road (n= 51, 68%) and railway (n= 24, 32%) networks, with the highest numbers of 56 CVCs observed in the Central Gujarat and lowest 2 CVC noted in north Gujarat, and no CVC was noted in south Gujarat. The high number of subadults and juvenile muggers victimized due to the CVC. The CVC site location in different regions of Gujarat state positively corresponds to crocodile populations. However, the Mugger crocodile (C. palustris) has been nationally protected under Indian Wildlife Act as Schedule I species, the IUCN criteria as ‘Vulnerable’, and the Appendix I of CITES, therefore conservation acts are essential. The CVC incidences were recorded widely in the entire species distribution range, from Iran, India, and Sri Lanka and can be classified as an emerging threat for mugger crocodiles.

Raju Vyas, Devendra Chauhan, Pranav Vaghashiya, Harshil Patel,
Volume 6, Issue 1 (In Press 2024)
Abstract

Mugger Crocodiles (Crocodylus palustris) are apex predators of freshwater aquatic ecosystems throughout South Asia whose natural history and ecology are incompletely known. We present some noteworthy observations on feeding behavior, hunting strategy, and diet of the species based on seven observations during the last four years as part of a long-term monitoring study in Junagadh, Gujarat, India. We found Muggers of this region feeding on the domestic dog (Canis familiaris), Indian rock python (Python molurus), Indian flap-shelled turtle (Lissemys punctata), several species of fishes, as well as cannibalism events. Moreover, we review and discuss some published observations of the species.



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