Results 21 to 30 of about 816,284 (147)

上海市野生动植物及其栖息地保护管理现状及思考

open access: yes野生动物学报, 2003
一、野生生物资源及栖息地现状 1.野生动物资源 根据历年的调查和历史文献记载,上海地区分布有哺乳类40种,鸟类424种(含亚种),爬行类32种,两栖类14种,鱼类25。种。其中属于国家一级重点保护的野生动物有9种,如白头鹤、东方白鹤、中华鲟等,国家二级重点保护野生动物有62种,如黑脸琵鹭、灰鹤、小天鹅、白琵鹭、虎纹蛙、海龟等;列入《濒危野生动植物种国际贸易公约》(CITES)附录的有56种;属于《中日保护候鸟及其栖息环境协定》规定保护的鸟类有185种;属于《中澳保护候鸟及其栖息环境协定》
汤臣栋, 管利琴, 谢一民
doaj   +2 more sources

卫星跟踪白尾海雕迁徙路线和栖息地利用

open access: yes野生动物学报
白尾海雕(Haliaeetus albicilla)为顶级捕食者,国家一级重点保护野生动物,2023年2月—2024年4月,采用卫星跟踪技术对1只北京野放的白尾海雕活动轨迹进行追踪,研究其迁徙路线、日活动节律、活动区面积和栖息地利用情况。结果表明:(1)白尾海雕在俄罗斯西伯利亚北部度夏,在蒙古国东部东方省越冬,春季迁徙速度(98.49 km/d)比秋季迁徙速度(106.09 km/d)慢,春季迁徙距离6 106.21 km,历时 62 d,秋季迁徙距离为4 137.63 km,历时39 d;(2 ...
张微   +4 more
doaj   +2 more sources

Constructed value of information with iterative scoring and parametric uncertainty to identify management-relevant research priorities for a declining raptor species. [PDF]

open access: yesConserv Biol
Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Davis KP   +7 more
europepmc   +2 more sources

Movement and Space Use Patterns of the Beale's Eyed Turtle (Sacalia bealei) Suggest Sensitivity to Environmental Changes and Poaching 比氏眼斑龟 (Sacalia bealei) 的活动与空间利用模式揭示其对环境变化及盗猎的敏感性

open access: yesWildlife Letters, EarlyView.
Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan   +3 more
wiley   +1 more source

Jaguar Densities and Land Cover Change in a Multi‐Use Landscape: A 10‐Year Comparison in the Colombian Llanos 美洲豹种群密度与复合用地景观下的土地覆被变化:哥伦比亚亚诺斯地区10年比较研究

open access: yesWildlife Letters, EarlyView.
We used spatially explicit capture‐recapture to estimate jaguar densities in a private reserve in the Colombian Llanos and quantified land cover change in and around the reserve from 2014 to 2024. Densities increased 22% since 2014, while disturbed land cover increased by 39%–54% around the reserve depending on buffer distance. Our study indicates that
Valeria Boron   +7 more
wiley   +1 more source

Using Harvest Data to Assess Factors Influencing Regional Population Declines of Muskrats (Ondatra zibethicus) 利用捕获数据评估影响麝鼠 (Ondatra zibethicus) 区域种群数量下降的相关因素

open access: yesWildlife Letters, EarlyView.
Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller   +5 more
wiley   +1 more source

Context‐Dependent Effects of Beavers (Castor spp.) on Freshwater Pearl Mussels (Margaritifera margaritifera) in European Rivers 河狸对欧洲河流中的淡水珍珠贝 (Margaritifera margaritifera) 存在情境依赖性影响

open access: yesWildlife Letters, EarlyView.
The study explores how beavers (Castor spp.) affect endangered freshwater pearl mussels (Margaritifera margaritifera) in European rivers. Beaver dams can harm small, fragmented mussel populations by reducing flow, increasing sediment, and potentially limiting host fish movement, while larger populations may benefit from improved bed stability and ...
Louise Lavictoire   +2 more
wiley   +1 more source

Updates on Breeding Success and Conservation Challenges for White‐Rumped Vulture (Gyps bengalensis) in Rampur Valley, Nepal 尼泊尔兰普尔山谷白腰兀鹫繁殖成功研究进展及其保护挑战

open access: yesWildlife Letters, EarlyView.
This study investigates the breeding success of the critically endangered White‐rumped Vulture in Khaireni Community Forest, and examines local knowledge and perceptions toward its conservation. We found that 71% of active nests were successful, with breeding success significantly influenced by the proximity to carcass deposition sites.
Siddhartha Regmi   +4 more
wiley   +1 more source

Assessing the Influence of Interference Competition on Ecologically Similar Species Threatened by Habitat Loss 评估干扰性竞争对受栖息地丧失威胁的生态相似物种的影响

open access: yesWildlife Letters, EarlyView.
We staged dyadic interaction trials between two kangaroo rat species threatened by habitat loss to test whether one species dominates in direct interactions in the field. We found that Stephens’ kangaroo rat (Dipodomys stephensi) residents and intruders were dominant over Dulzura kangaroo rat (Dipodomys simulans). These results suggest that D. simulans
Janine N. Straughan   +2 more
wiley   +1 more source

When and why to give shorebirds a head start

open access: yesConservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy