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The breeding habitat selection by houbara bustards in Mori, Xinjiang, China duringthe breeding seasons from April to June 1998-2000 was studied. Most of habitats chosen forbreeding were short sub-shrubby and open areas close to high bushy patches. The nesting re-males clearly prefer Iow covered areas and avoid densely covered and high vegetation sites. Thenumber of herb species was significantly smaller at nest sites than at randomly selected sites.Only the distance to the closest fox den contributed the most to discrimination between successfuland predated nests. The average distance to the closest fox den was significantly longer at suc-cessful nests than at depredated nests. Vegetative density, plant species richness, topography anddistance to the closest fox den are possibly the most important factors that determined the nestsites selection of houbara bustard. The displaying males clearly prefer Iow covered areas andavoid densely covered and high vegetation sites. The vegetation density and number of plant spe-cies at display sites was significantly lower than that at randomly selected sites. The average dis-tance to the closest bushy patch was significantly shorter at display sites than at random sites.Plant species richness, vegetative density, vegetative cover and distance to the bushy patches arepossibly the most important factors for the display sites selection of houbara bustard. 相似文献
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Activity rhythms of captive-bred reintroduced houbara bustards (Chlamydotis undulata macqueenii) were studied in the Mahazat as-Sayd reserve in Saudi Arabia. Birds were radio tagged with solar powered transmitters and activity was recorded with an automatic recording station over several weeks in the summer of 1993. Peaks of diurnal activity were observed at dawn and dusk. Daytime activity was negatively related to solar radiation and soil surface temperature. Nocturnal activity was triggered by moonlight. Food consumption, the duration of night-time activity and the minimum distance moved at night by houbara were positively correlated to the duration of moonlight. 相似文献
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Weikang Yang Jianfang Qiao Olivier Combreau Xingyi Gao Wenqin Zhong 《Journal of Arid Environments》2002,51(4):625
Display-site selection by houbara bustards was studied in Mori, Xinjiang, China during the breeding seasons from April to June 2000. Most of the habitats chosen for displaying were short sub-shrubby and open areas close to high shrub patches. The displaying males clearly prefer low covered areas and avoid densely covered and high vegetation sites. The vegetation density and number of plant species at display sites were significantly lower from that at randomly selected sites. The average distance to the closest shrub patch was significantly shorter at display sites than at random sites. Plant species richness, vegetative density, vegetative cover and distance to the shrub patches are possibly the most important factors that determined the display-sites selection of houbara bustard. 相似文献
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