Leading up to the National Moth Week on July 22, we interview some contributors of moth observations.Listen to the first podcast episode with Nagesh O. S. on the IBP blog.

Featured Document

Browse Documents

7 documents found tagged west bengal [X]
  • Title
    An observation on the Odonata fauna of the Asansol- Durgapur Industrial Area, Burdwan, West Bengal, India
    Type
    Journal Article
    Description
    The present investigation was undertaken as a pilot study to examine the diversity, occurrence and distribution pattern of dragonfies and damselfies (Odonata) from the selected study sites of the Asansol-Durgapur industrial area of Burdwan District of West Bengal, India from January 2012 to December 2015. A combination of direct search and opportunistic sighting methods were applied to record 57 di􀄫erent Odonata species (38 dragon􀅇ies and 19 damsel􀅇ies). Among the dragon􀅇ies the most diverse family was Libellulidae represented by 36 species while among damsel􀅇ies Coenagrionidae was the most diverse family represented by 16 species. In spite of the Asansol-Durgapur region being an industrial urban area, the present study revealed a handsome diversity of odonates. A suitable geographic location, favourable climatic conditions, heterogeneous habitat types that included ponds, wetlands, riverbeds, grasslands and agricultural lands along with the presence of appropriate vegetationprovided a comfortable shelter for Odonata species to flourish in this ecoregion. All the odonates noted in the present study belong to the Least Concerned category as designated by IUCN.
    Attribution
    © Nayak & Roy 2016.
  • Title
    On the Behaviour, abundance, habitat use and potential threats of the Gangetic Dolphin Platanista gangetica in southern West Bengal, India
    Type
    Journal Article
    Description
    The Ganga River Dolphin Platanista gangetica Roxburgh, 1801 is a globally endangered cetacean found in the River system of Ganga, Brahmaputra and Meghna in Bangladesh and India. A survey and research were conducted from 2012–2014 to explore the behaviour, abundance, habitat use and potential threats of the Dolphin in the lower, middle and upper stretches of the river Ganga and its tributaries in southern West Bengal. The study recorded different types of surfacing patterns with respect to their age class as well as on diurnal activity pattern of the individual. The adults and sub-adults were found to have different types of surfacing during different hours of the day. The morning and afternoon were observed to be feeding hours of the Dolphin. Multiple potential threats were encountered during the present study such as destructive fishing gears, dumping of solid and municipal waste, industrial effluents, agricultural run-off, construction of water structures, water extraction and reduction of river depth attributed to siltation. These factors contributed to the present study of the river dolphins in the Ganga, which are localised at certain pockets in good number.
    Attribution
    Mahua Roy Chowdhury, Sangita Mitra & Saswati Sen, Journal of Threatened Taxa, Vol 8, No 9 (2016); pp. 9131–9137 http://dx.doi.org/10.11609/jott.1752.8.9.9131-9137
  • Title
    Notes on the occurrence of Mortonagrion aborense Laidlaw, 1914 (Odonata: Coenagrionidae) from lower West Bengal, India
    Type
    Journal Article
    Description
    A new distribution record of an Odonata species from lower West Bengal. Mortonagrion aborense laidlaw, 1914 is recorded for the first time from Purba Medinipur district, lower West Bengal. Previously the species was recorded only from north-east India (Mizoram, West Bengal, Assam and Nagaland). Diagnostic characters with photographic details of male anal appendages are also given for easy identification of this rare damselfly species.
    Attribution
    Arajush Payra & Ashish D. Tiple, Journal of Threatened Taxa, Vol 8, No 7 (2016); pp. 9038–9041 http://dx.doi.org/10.11609/jott.1992.8.7.9038-9041
  • Title
    Light attracted butterflies: a review from the Indian sub-region with an inventory from West Bengal, India
    Type
    Journal Article
    Description
    Butterflies are generally considered diurnal and crepuscular. Several reports regarding occasional attraction of butterflies to artificial lights at night in different regions of the India, along with some observations by the present authors (2008-2009) from West Bengal reveal a total of 31 species, comprising 3 species of Papilionids, seven Pierids, 11 Nymphalids, six Lycaenids and four Hesperiids, have been observed at artificial light sources. The previous and present observations, when analysed, suggest that the greatest number of incidents of light-attraction take place during the monsoon months (June - October).
    Attribution
    Chowdhury S., Soren R. (2011). Journal of Threatened Taxa 6(3) pp. 1868-1871; doi:10.11609/JoTT.o2476.1868-71
  • Title
    Sighting of Elymnias panthera (Lepidoptera: Nymphalidae: Satyrinae) in West Bengal, eastern India
    Type
    Journal Article
    Description
    The Tawny Palmfly butterfly, Elymnias panthera (Lepidoptera: Nymphalidae: Satyrinae), is a Malayan species that is also known from the Nicobar Islands. Here we report sighting of E. panthera from the Bethuadahari Wildlife Sanctuary in West Bengal, eastern India. This is the first sighting of the species from mainland India, and is a possible range extension of the species into northeastern India.
    Attribution
    Roy A.B., Ghosh U., Kunte K. (2010). Journal of Threatened Taxa 1(2) pp. 670-671; doi:10.11609/JoTT.o2280.670-1
  • Title
    New record of the earthworm Drawida papillifer papillifer Stephenson from West Bengal, India
    Type
    Journal Article
    Description
    During the studies on earthworm, the present species Drawida papillifer papillifer was collected from West Bengal. This species was not recorded from West Bengal earlier.
    Attribution
    Chowdhury A., Hazra A.K., Nandi A.P. (2010). Journal of Threatened Taxa 2(2) pp. 716-717; doi:10.11609/JoTT.o2323.716-7
  • Title
    Rediscovery of Small Salmon Arab Colotis amata Fabricius (Lepidoptera: Pieridae) from saline and semi-saline areas of West Bengal, India
    Type
    Journal Article
    Description
    Small Salmon Arab, Colotis amata Fabricius (Lepidoptera: Pieridae) is reported from the coastal (Sagar Island and Haldia) and inland (Piyali) saline areas of West Bengal, India after a time lapse of seven decades. The survey revealed a patchy distribution with a few individuals , signalling potential local extinction due to habitat destruction.
    Attribution
    Chowdhury S., Soren R. (2009). Journal of Threatened Taxa 6(1) pp. 351-352; doi:10.11609/JoTT.o2127.351-2