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Showing 3 results for Chatterjee
A survey on the mammal species from a peri-urban coal mining plateau of Eastern India
Debayan Gayen, Paromit Chatterjee, Tapajit Bhattacharya,
Volume 3, Issue 3 (9-2021)
Abstract
The present study was conducted to determine the diversity of mammalian species from a peri-urban coal mining region of West Bengal for almost three years from September 2017 to August 2020. The survey was done on the basis of direct sightings, extensive searches, detection and identification of indirect mammalian signs such as pug marks and droppings, opportunistic sightings and road-kill incidents. Secondary information from previous literature and information from local people, citizen scientists and Forest Department were also included in the study. A total of 20 mammals belonging to 9 orders, 15 families and 20 genera were observed from 31 locations during the present study and 6 species belonging to two orders, three families and four genera which were previously reported from the present study location but not observed during this study were also included in the list. Two endangered species, Asian Elephant Elephas maximus and Indian Pangolin Manis crassicaudata, were observed from the present study location within the study period. Based on the habitat types, the maximum number of species was observed from the Human Habitation (HH) areas whereas the least number of species was noted from the Riverside Zones (RS). Proportion of the different habitat types for each mammalian species found in the present study and also obtained from literature depicted that Asian House Shrew Suncus murinus, Asian Palm Squirrel Funambulus pennant and Indian Pygmy Pipistrelle Pipistrellus mimus were among the most abundant mammals in the study area. Golden Jackal Canis aureus was observed from a wide variety of habitat types whereas the two varieties of civets were only observed from the riverside areas. Principle Component Analysis between species and habitat type indicated that the Bengal Fox Vulpes bengalensis and the Black-naped Hare Lepus nigricollis were only associated with the grasslands. The Hanuman Langur Semnopithecus entellus and other small rodent species were generally found in the human habitation areas. Various threats like habitat destruction, habitat degradation and hunting posed the major problems in the present study location.
 

First record of the Long-snouted Bhutan Squirrel Dremomys lokriah bhotia (Wroughton, 1916) (Mammalia: Rodentia) from the state of West Bengal, India
Paromit Chatterjee, Kamalika Bhattacharyya, Silanjan Bhattacharyya,
Volume 4, Issue 1 (3-2022)
Abstract
We present the first confirmed report of the Long-snouted Bhutan Squirrel Dremomys lokriah bhotia from the state of West Bengal, India. Previously the subspecies was known from limited localities of East Sikkim (India) and Bhutan. This article, thus, adds to the global knowledge of the subspecies with a note on its habitat and activity pattern, along with new details on it’s current global distribution.
 

Foraging and diving pattern of the Little Cormorant Microcarbo niger (Vieillot) (Pelecaniformes: Phalacrocoracidae) of Ecopark, Kolkata, India
Lina Chatterjee, Abhik Rong, C. S. Samrat, Saswati Sinha, Tarak Samanta, Arjan Basu Roy,
Volume 6, Issue 4 (9-2024)
Abstract
This study aims to investigate the feeding behaviour and diving habits of the Little Cormorant (Microcarbo niger) in the vicinity of Pakhibitan, which is a component of Ecopark, the largest urban park located in Newtown, Kolkata, West Bengal, India. The study took place for three days a week starting from September 2021 to February 2022. The Little Cormorant mostly used the Lake as a foraging location in Pakhibitan, with the highest number of dives (1957 dives, 10.78 ± 10.43 sec) and surface pauses (1980 surface pauses, 6.02 ± 5.48 sec) compared to a nearby smaller pond. The pattern of dive bout/surface pause showed considerable variability between lake (F = 1.055, df = 1, P > 0.05) and pond (F = 0.153, df = 1, P > 0.05). There may be a correlation between the average duration of dives and the average recovery time between dives, and the depth of the water bodies. In certain cases, longer dives were associated with longer rest periods, resulting in increased time spent searching for prey. Consequently, the foraging efficiency of the dives may decrease as the diving depth increases. The feeding behaviour of the Little Cormorant is subject to the influence of various environmental conditions, necessitating a more comprehensive investigation.

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