Altitudinal variation in drosophila species of Hadya, Western Ghats, Karnataka State of India

Megha, B. G. and Krishna, M. S. (2015) Altitudinal variation in drosophila species of Hadya, Western Ghats, Karnataka State of India. International Journal of Current Research, 7 (6). pp. 16741-16745. ISSN 0975-833X

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Abstract

Drosophila (L.) (Diptera: Drosophilidae) is a very good model organism since the time of Morgan it has been used to understand the pattern of inheritance, variation, speciation and evolution. In addition to this basic research work, it has also been utilized to understand many of human metabolic disorders due to availability mutants and conserved physiological mechanism in both of it. Further species of Drosophila not only show cosmopolitan nature but also exhibits. Complexities in species compositions form good model to study the eco-distributional patterns of various species. This study analysed the altitudinal variation in Drosophila species of hadya, of Western ghats, Karnataka state, India. A total of 2548 Drosophila flies belonging to 11 species of 4 subgenera were collected at altitudes of 800, 1000 and 1200 m a.s.l. The subgenus Sophophora was predominant, with 8 species. Subgenus Drosophila, Dorsilopha and Scaptodrosophila were represented by 1 species each. Population densities and relative abundances of the different species at different altitudinal variations were studied. The diversity of the Drosophila community was assessed by applying Simpsons diversity index. Diversity of species of Drosophila was more at altitude 800m and it started decling with increasing altitude. The results suggest the distributional pattern of a species Drosophila at different altitude was uneven in space and time.

Item Type: Article
Uncontrolled Keywords: Cluster Analysis and Occurrence Constancy Method and Simpson's Diversity Index
Subjects: B Life Science > Zoology
Divisions: Department of > Zoology
Depositing User: Shrirekha N
Date Deposited: 01 Jul 2019 09:50
Last Modified: 01 Jul 2019 09:50
URI: http://eprints.uni-mysore.ac.in/id/eprint/4254

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