Results 11 to 20 of about 71 (55)
野生动物学报云南德宏是犀鸟种群的集中分布区域。2020年12月—2021年11月，利用样线法分别对德宏境内的冠斑犀鸟（Anthracoceros albirostris）、双角犀鸟（Buceros bicornis）和花冠皱盔犀鸟（Rhyticeros undulatus）进行野外分布位点调查，利用MaxEnt模型对3种犀鸟的潜在适宜栖息地进行预测。结果表明：冠斑犀鸟的最适宜栖息地主要分布在盈江县西北部和西南部边缘以及瑞丽市，总面积约116 km2；双角犀鸟的最适宜栖息地主要分布在盈江县西南部边缘 ...
段正攀 +6 more
doaj +2 more sources
野生动物学报, 2020 气候变化是导致生境丧失和生物多样性下降的主要因素之一。研究气候变化对物种生境的影响对于保护物种多样性，维护生态系统功能完整性具有重要意义。本研究以新疆为研究区域，以塔里木兔、草兔和雪兔为研究对象，选取可能影响它们生境分布的10个环境因子，利用MaxEnt模型预测它们当前和未来RCP 4.5和RCP 8.5两种气候情景下2041—2060年（2050s）、2061—2080年（2070s）的潜在生境分布，并找出影响生境分布的关键因子。研究结果表明，模型预测新疆兔属3个物种生境分布的精度达到较高水平 ...
伊拉木江·托合塔洪1阿迪力·艾合麦提 1 +5 more
doaj +1 more source
野生动物学报, 2018 黑颈鹤(Grus nigricollis)是青藏高原的特有鹤类,其目前已知最大的越冬栖息地位于我国的西藏自治区。根据以往调查,约6000只黑颈鹤越冬于西藏的雅鲁藏布江中上游河谷以及拉萨河—彭波河谷地区,而仅有少量个体在林芝地区越冬。2016～2017年,对西藏东部雅鲁藏布江下游湿地进行调查时,在位于林芝地区的尼洋河与雅鲁藏布江汇合处的 “T” 型河谷地带记录到527只黑颈鹤在沙洲及江岸农田中集群越冬,总数约占该物种全球种群的5.0%。两年的连续观察中记录到该越冬种群幼体新增率分别为8.64%和6.64%,
韩雪松 郭玉民
doaj +1 more source
Assessment of rockfall susceptibility along the expressway based on the CF-AHP coupling model: A case study of the Tucheng-Wanglong section of the Rongzun expressway [PDF]
, 2023 Frequent geological hazards have occurred along the Rongzun Expressway (Tucheng - Wanglong section, posing a threat to the safety of the highway and even human life and property.
Jianguo CHEN, Lianxiang ZHONG
core +1 more source
Spatial and Temporal Changes and Prediction of Habitat Quality in Key Ecological Function Area of Hu'nan Province [PDF]
, 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
Integrative Conservation, Volume 2, Issue 4, Page 201-213, December 2023., 2023 Livestock disturbances decreased the area of suitable habitat of forest pheasants by 14.28% in 7 years. Livestock activities remarkably increased the nest failure rate (by 2.18 times) of forest pheasants. Abstract The degradation and fragmentation of natural habitats, driven largely by anthropogenic activities such as grazing, represent growing ...
Xing Chen +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为进行泥石流易发性分区及环境因子的敏感性评价,选取降水、高程、坡度、坡向、径流量、岩性、断层、归一化植被指数、土壤侵蚀模数等9个环境因子,基于最大熵(MaxEnt)模型对187个泥石流沟道进行易发性评价。结果表明:导致泥石流易发的主导因素依次是径流量、高程、降水、岩性、断层、坡度、归一化植被指数、土壤侵蚀模数、坡向。依据泥石流灾害易发概率进行易发性分区发现,贡山-福贡段泥石流易发性最强,模型AUC值为0.974,标准差为0.010,模型分析结果与实际结果一致。与研究区山洪沟道9个环境因子进行对比评价发现,
皋子琪 +6 more
doaj +2 more sources
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Understanding how habitat fragmentation affects individual species is complicated by challenges associated with quantifying species‐specific habitat and spatial variability in fragmentation effects within a species’ range. We aggregated a 29‐year breeding survey data set for the endangered marbled murrelet (Brachyramphus marmoratus) from >42 ...
Jonathon J. Valente +7 more
wiley +1 more source
Integrative Conservation, Volume 2, Issue 3, Page 119-132, September 2023., 2023 Benefits derived from leisure and recreational, and wildlife cultural ecosystem services (CES) were predominantly safeguarded by nature reserves. In contrast, folk and custom CES and spiritual and religious CES were less reliant on these reserves due to intrinsic community‐based protection. Abstract Cultural ecosystem services (CES) play a pivotal role
Peng Liu +10 more
wiley +1 more source