Results 21 to 30 of about 184 (142)

极端天气气候事件对宁夏野生动物种群安全的影响

open access: yes野生动物学报, 2009
通过问卷调查和样地调查方法,分析极端天气气候对宁夏野生动物种群安全产生的影响。极端天气气候对优势物种数量影响严重。雀形目种群安全主要受到沙尘暴、冰雹和暴雨的影响较大;迁徙鸟类种群安全主要受到沙尘暴、冰雹和暴雨的影响较大;啮齿类种群安全主要受到暴雨的影响较大;岩羊种群安全受到沙尘暴、冰雹、暴雨和降雪的影响。
刘晓红
doaj   +2 more sources

卧龙自然保护区雪豹的生境选择偏好与食源结构特征

open access: yes野生动物学报, 2021
近年来,人类活动范围不断扩大,对雪豹(Panthera uncia)所处高海拔生态系统侵入不断增加,对雪豹生存已造成威胁。准确掌握雪豹生境选择偏好与食源结构特征,可以完善雪豹基础研究,提高雪豹保护管理效率。因此于2019年7月对卧龙自然保护区内雪豹集中分布区域进行野外调查,研究雪豹对各生境因子的选择偏好情况;分析粪便组成,明确雪豹食源结构。结果显示:雪豹偏好于海拔3500—4500 m、坡度31°—45°且地形较为崎岖的无家畜活动区域,在坡位的选择上,雪豹偏好于山脊与上坡位,避开中、下坡位与山谷 ...
洪 洋 张晋东
doaj   +1 more source

白马雪山中华鬣羚种群数量和分布初步调查

open access: yes野生动物学报, 2013
中华鬣羚是CITES附录I物种,已被IUCN列为近危种,是国家Ⅱ级保护野生动物。国内鲜有鬣羚种群数量的报道。2011年10月,采用样线调查法对白马雪山鬣羚的数量进行调查,共在白马雪山叶日片区布设9条样线总计48.3 km。研究表明,叶日片区为鬣羚的理想栖息地,区内鬣羚种群的平均种群密度为2.58±1.25头/km2,整个叶日片区约有鬣羚140头,80%的置信区间为72~208头。本研究还发现,鬣羚在叶日片区内具有来自狼等肉食动物的捕食风险。在生境选择上,鬣羚偏好利用高山栎林带,样线调查中鬣羚的主要粪堆 ...
陈永春, 肖林, 李学友
doaj   +2 more sources

红外触发相机技术在山区动物调查中的应用

open access: yes野生动物学报, 2014
近年来,红外触发相机凭借各种优势,在野生动物种类与数量调查中得到越来越多的应用。2012年6月~2013年3月,在安西极旱荒漠国家级自然保护区山区的水源及兽径处放置20部红外触发相机,以检验该技术在山区动物种类调查中的应用效果。监测期间共获得独立照片732张,经辨认,共拍摄到25种野生动物,隶属2纲,10目,15科,25属。哺乳类拍摄率最高的3种是北山羊(Capra ibex)、岩羊(Pseudois nayaur)及中亚兔(Lepus capensis); 鸟类拍摄率最高的3种为红嘴山鸦 ...
王 亮 赵 伟 杨增武 陶金鼎 包新康
doaj   +1 more source

Spatial and Temporal Changes and Prediction of Habitat Quality in Key Ecological Function Area of Hu'nan Province [PDF]

open access: yes, 2022
[Objective] Land use change and habitat quality in Nanyue key ecological function area of Hu'nan Province were studied to reveal the relationship between forest land reduction and habitat quality caused by human activities, in order to promote the ...
Deng Chuxiong   +5 more
core   +1 more source

矮岩羊考察记

open access: yes野生动物学报, 1998
王小明, 彭基泰, 周华明
doaj   +2 more sources

香格里拉县次恩丁村纳西语音系研究 [PDF]

open access: yes, 2012
International audienceThis is a phonemic analysis of the Naxi dialect of Ciending hamlet (Sanba township, Zhongdian prefecture; now renamed 'Shangri-la prefecture'). An appendix offers a word list.
Michaud, Alexis, Xu, Jirong
core   +3 more sources

Swidden Cultivation of the Jinuo and a Comparisonwith Swiddening Practiced by Other Ethnic Groups in Yunnan [PDF]

open access: yes, 1992
departmental bulletin ...
4689   +3 more
core   +1 more source

Identifying the beginnings of Sheep Husbandry in Westen China [PDF]

open access: yes, 2017
Situated at the two sides of Eurasia, Western Asia and China are both important centres for the origins of agriculture and civilization. Key suites of domestic crops, animals, and technologies were independently developed at these two centres.
Wang, Yiru
core   +1 more source

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