We have deployed a new feature : Traits ! Read all about it on the IBP blog http://bit.ly/2gVflyS

Featured Document

Browse Documents

2 documents found tagged evenness [X]
  • Title
    Avian diversity and density estimation of birds of the Indian Institute of Forest Management Campus, Bhopal, India
    Type
    Journal Article
    Description
    A study to find out the bird diversity at the Indian Institute of Forest Management (IIFM), Bhopal, was carried out over a period of nine months from July 2012 to March 2013. IIFM is located on a hill facing Bhadbhada barrage in Bhopal. Physiographically the area is classified as Vindhayan Hills. A total of 106 bird species belonging to 52 families were recorded during the study covering an area of about 93 hectares. The study area was divided into three major habitat types: open scrub, dry deciduous, and urbanized. Bird species were classified into eight feeding guilds: carnivore, ground insectivore, sallying insectivore, canopy and bark insectivore, nectar insectivore, general insectivore, frugivore and water birds. Of the total 106 species observed, 27 species were recorded as winter visitors. Density analysis was done using DISTANCE software and density was found out to be 32.7 birds per hectare. Rank abundance curve was used for assessing species composition in different habitats and during different seasons. In terms of both richness and evenness, open scrub scored the highest rank (72 species, and most even distribution of species). Higher species richness with lower species evenness was recorded during winter season for all the habitats.
    Attribution
    Aggarwal Anjali, Tiwari Govind, Harsh Sprih (2015). Journal of Threatened Taxa 2(7) pp. 6891-6902; doi:10.11609/jott.1850.6891-6902
  • Title
    Butterfly diversity in tropical moist deciduous sal forests of Ankua Reserve Forest, Koina Range, Saranda Division, West Singhbhum District, Jharkhand, India
    Type
    Journal Article
    Description
    Butterflies were sampled during February and September 2008 using pollard walk method to assess the species diversity in the tropical moist deciduous sal forest habitats of Ankua Reserve Forest, Koina Range, Saranda Division, West Singhbhum District, Jharkhand. This area, a total of 999.9ha, is being proposed for lease under an iron ore mining project. This short-term study revealed high beta diversity of butterflies in these forest tracts, with 71 species recorded. Of these, two species, Leopard Lacewing Cethosia cyane (Drury, 1773) and Restricted Demon Notocrypta curvifascia (C. & R. Felder, 1862), are new records for Jharkhand state while three other species recorded are listed in the Indian Wildlife (Protection) Act 1972. This study provides support for long-term conservation of these fragmented sal forest tracts to ensure biodiversity protection.
    Attribution
    Singh A.P. (2010). Journal of Threatened Taxa 9(2) pp. 1130-1139; doi:10.11609/JoTT.o2274.1130-9