Foraging sites selection of green peafowl (Pavo muticus imperator) in different seasons in Shiyangjiang Valley of upper Yuanjiang drainage, Yunnan

doi:10.3724/SP.J.1003.2008.08098

Abstract

Abstract:

From March to April and October to November in 2007, we investigated foraging site selection of green peafowl (Pavo muticus imperator) using line transect bird survey and quadrant habitat sampling in Shiyangjiang Valley of upper Yuanjiang drainage in Yunnan Province, China. We measured twenty one habitat and landscape variables at used and random plots. The results suggested that distance to road, tree type, and liana density were different between used and random plots in spring, but were not different in autumn. The logistic regression analysis showed that green peafowl chose locations with abundant fruits, close water resource, gentle slope, higher degree of trees coverage, and larger trees as their foraging sites in both seasons. Foraging sites in spring and autumn could be discriminated by coverage of trees and grasses and distance to road, residential area, and forest edge. The map of distribution probability and spatial analysis indicated that the foraging sites tended to be clumped with partially overlap between spring and autumn. The results from principal component analysis showed that human disturbance affected foraging site selection.

Key words: Pavo muticus imperator, green peafowl, foraging behavior, habitat selection, spatial distribution

Zhao Liu, Wei Zhou, Rengong Zhang, Yichang Xie, Qingwen Huang, Yunyan Wen. Foraging sites selection of green peafowl (Pavo muticus imperator) in different seasons in Shiyangjiang Valley of upper Yuanjiang drainage, Yunnan[J]. Biodiv Sci, 2008, 16(6): 539-546.

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URL: https://www.biodiversity-science.net/EN/10.3724/SP.J.1003.2008.08098

https://www.biodiversity-science.net/EN/Y2008/V16/I6/539

Figures/Tables 5

References 13

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样方 Plots	生态因子 Ecological factors	回归系数 Coefficient (B)	标准误 S.E.	Wald χ²	显著性 Sig.
春季利用样方对对照样方 Spring used plots vs. control plots	乔木盖度 × 乔木胸径 (CT×DBT)	0.002	0.001	6.896	0.009
	坡度 (SL)	-0.089	0.036	5.961	0.015
	常数 Constant	1.372	1.105	1.542	0.214
秋季利用样方对对照样方 Autumn used plots vs. control plots	乔木盖度 × 乔木胸径 (CT×DBT)	0.006	0.002	11.508	0.001
	坡度 (SL)	-0.113	0.054	4.293	0.038
	常数 Constant	-0.798	1.597	0.249	0.617
春季利用样方对秋季利用样方 Spring used plots vs. autumn used plots	乔木盖度 (CT)	0.063	0.034	3.373	0.066
	草本盖度 (CG)	0.057	0.029	3.823	0.051
	距小路距离 (DR)	0.020	0.009	4.746	0.029
	距居民点距离 (DSC)	0.003	0.001	6.098	0.014
	距林缘距离 (DFE)	0.008	0.005	2.778	0.096
	常数 Constant	-12.368	3.738	10.950	0.001

样方 Plots	生态因子 Ecological factors	回归系数 Coefficient (B)	标准误 S.E.	Wald χ²	显著性 Sig.
春季利用样方对对照样方 Spring used plots vs. control plots	乔木盖度 × 乔木胸径 (CT×DBT)	0.002	0.001	6.896	0.009
	坡度 (SL)	-0.089	0.036	5.961	0.015
	常数 Constant	1.372	1.105	1.542	0.214
秋季利用样方对对照样方 Autumn used plots vs. control plots	乔木盖度 × 乔木胸径 (CT×DBT)	0.006	0.002	11.508	0.001
	坡度 (SL)	-0.113	0.054	4.293	0.038
	常数 Constant	-0.798	1.597	0.249	0.617
春季利用样方对秋季利用样方 Spring used plots vs. autumn used plots	乔木盖度 (CT)	0.063	0.034	3.373	0.066
	草本盖度 (CG)	0.057	0.029	3.823	0.051
	距小路距离 (DR)	0.020	0.009	4.746	0.029
	距居民点距离 (DSC)	0.003	0.001	6.098	0.014
	距林缘距离 (DFE)	0.008	0.005	2.778	0.096
	常数 Constant	-12.368	3.738	10.950	0.001

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