Volume : V, Issue : XII, December - 2016

COMPARATIVE STUDY OF SELECTED WETLAND BIRDS POPULATION IN VISNAGAR AREA, GUJARAT

M. G. Patel, Dr. Acharya, C. A

Abstract :

 Polyspecific (mixed) bird population of 29 species at semi–arid condition was investigated at six sites for 48 months. All 29 species are belonging to 7 orders and 12 families. Out of which 1/3 population is Resident where as 2/3 population is Local Migrant. ?e highest percentage of population is observed in family anatidae ( Ducks) and lowest in ciconiidae (Storks). ?e population of Cattle Egret as a resident species is highest due to availability of food (insects) in croplands, better nesting sites and shelter. Shoveller as a migratory species observed high in numbers, where as Darter as a migratory speices was very less in number. Species wise as well as total population of birds is recorded maximum at such sites where human interference is very less. Anthopogenic pressure threats the birds from their favorable habitat. Water table is also the second important factor. Rainfall is not directly involved but high or moderate rainfall of the previous year affect to the next year for migratory species. Yearly average record shows that the range of these birds has remained between 239 and 375 per visit. Breeding behavior also regulates the population especially in Herons and Egrets

Keywords :

Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

M.G.Patel, Dr. Acharya, C.A, COMPARATIVE STUDY OF SELECTED WETLAND BIRDS POPULATION IN VISNAGAR AREA, GUJARAT, International Journal of Scientific Research, Volume : 5 | Issue : 12 |December 2016

Number of Downloads : 542

References :