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Nest site distribution pattern of house sparrows (Passer domesticus) in Fukang, Xinjiang, Northwest China: The role of food abundance and inter-specific competition.

HU Yi-ping1, HUANG Jia-liang1, HUO Juan1, YANG Can-chao1, MA Ming2, LIANG Wei1*   

  1. (1Ministry of Education Key Laboratory for Tropical Plant and Animal Ecology, College of Life Sciences, Hainan Normal University, Haikou 571158, China; 2Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China)
  • Online:2016-01-10 Published:2016-01-10

Abstract: Spatial distribution pattern of nest sites of house sparrows (Passer domesticus) in Fukang, Xinjiang, Northwest China, was investigated during the breeding season from 〖JP3〗May to July during 2013-2014. The breeding population density of house sparrow was 299.8±163.6 birds·km-2, with the highest density of 491.9±87.8 birds·km-2 in the forest dominated by trees Populus tomentosa. A total of 75 house sparrow nests were found, with the distance index of spatial distribution (I) being 4.77. The nest site distribution pattern of house sparrows in Fukang were clumped in farmland and forest. Our results suggested that food abundance, inter-specific competition and potential predation by rufous-tailed shrike (Lanius isabellinus) might play a key role in nest distribution pattern and nest-site selection of house sparrows.

Key words: inconsistency, lowest navigable water level, hydrological analysis and calculation, dry seasons, second-moment variability., synthetic duration curve design method