弄岗穗鹛与短尾鹪鹛冬季取食空间生态位比较

doi:10.16088/j.issn.1001-6600.2015.04.020

Abstract

Abstract: The eco-factors of the foraging sites of Longgang babbler and Streaked Wren babbler were surveyed in Nonggang National Natural Reserve from Dec. 2011 to Feb. 2012 and Dec. 2012 to Feb. 2013. The analyses of the niche width, niche overlap and interspecific competition of eight eco-factors showed that the niche width of the two babblers which had different genera and sympatric distribution in 5 factors (slope, arbor coverage, herbage coverage, microhabitats, foraging height) was lower, but higher in 3 factors (shrub coverage, litter coverage, bare rock ratio). The niche overlap and competition coefficient were very high between the two species. The pressure of interspecific competition in their foraging sites was intense. Longgang babbler and Streaked Wren babbler had strong tendency to choose the eco-factors such as broad-leaved forest habitat, larger arbor coverage and ground feeding.

Key words: Longgang babbler, niche breadth, niche overlap, interspecific competition

CLC Number:

Q958.1

LU Zhou, YANG Gang, SHU Xiao-lian, YU Gui-dong, ZHOU Fang. Spatial Niches of Nonggang Babbler and Streaked Wren Babbler in Winter[J].Journal of Guangxi Normal University(Natural Science Edition), 2015, 33(4): 120-126.

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Spatial Niches of Nonggang Babbler and Streaked Wren Babbler in Winter

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