Species abundance distributions of bird communities in four agroecosystems

dc.contributor.author	Fernand, P.U.U.
dc.contributor.author	Amarasinghe, N.J. De S.
dc.date.accessioned	2023-05-03T07:09:50Z
dc.date.available	2023-05-03T07:09:50Z
dc.date.issued	2002-09-04
dc.identifier.issn	1391-3646
dc.identifier.uri	http://ir.lib.ruh.ac.lk/xmlui/handle/iruor/12548
dc.description.abstract	The fit to log-normal distribution of species abundance of bird communities in fopr agroecosystems: vegetable cultivation, slash and burn agriculture (<chenas), paddy cultivation & tea plantation, in the Southern Province of Sri Lanka was analyzed. Point-scan line-transect technique (encounter survey) was employed to estimate bird abundance. None of the distributions differed significantly from log-normal distribution when data were transformed into octave scale of Preston. The dispersion of the log-normal curves was between 2.29-2.70. Compared to predicted values, 69-93 per cent of species theoretically present in the sample area. The analysis showed that log-normal curve is applicable for bird communities in agroecosystems.	en_US
dc.language.iso	en	en_US
dc.publisher	Faculty of Agriculture, University of Ruhuna, SriLanka	en_US
dc.subject	Species abundance	en_US
dc.subject	Log-normal distributions	en_US
dc.subject	Bird communities	en_US
dc.subject	Agroecosystems	en_US
dc.title	Species abundance distributions of bird communities in four agroecosystems	en_US
dc.type	Article	en_US