Results 31 to 40 of about 4,642 (226)
The study of Mitochondrial DNA Gene Rearrangement in 4 species of birds(Aves: Falconiformes) [PDF]
, 2016 线粒体控制区由于进化速率快，被作为分子标记广泛应用于种群遗传学和保护生物学等领域的研究。但最近在许多鸟类的线粒体中都发现控制区存在重复拷贝，并且2个控制区拷贝之间的碱基相似度较高。因此在扩增其中一个控制区基因时可能受到另一个控制区的干扰，而对研究结果产生影响。本研究主要针对隼形目鸟类线粒体DNA(mtDNA)基因组中控制区重复及由此产生的基因重排现象进行研究，初步探讨控制区重复和基因重排产生的过程和机制。 本次实验首次对鹰科中的白头鹞(Circusaeruginosus)、日本松雀鹰 ...
范欢
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Integrative Zoology, EarlyView.China is a global hotspot for cuckoo‐host diversity, with 17 cuckoo species, exploiting 142 host species. We reveal adaptive matching in body size and egg traits, along with niche partitioning among cuckoos, while identifying eight new host species.
Tao Liu, Canchao Yang
wiley +1 more source
Lessons from an eradication under multiple constraints of an island rat population of record density
Conservation Biology, EarlyView.Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti +7 more
wiley +1 more source
野生动物学报, 2023 对截至2022年4月底陕西省11个调查地理单元中的鸟类组成及其变化进行统计。结果表明：陕西省共有鸟类572种，隶属于22目81科，其中国家一级重点保护鸟类29种，国家二级重点保护鸟类98种。按居留型划分，留鸟200种，夏候鸟191种，冬候鸟55种，旅鸟104种，迷鸟22种。物种组成随着调查地理单元的不同而发生变化，渭河谷地及其以南区域的物种数较多，其次为陕北黄土高原及其以北区域，而陕北黄土切割塬和陇山山地最少。秦巴山地留鸟的比例较高，鄂尔多斯高原和陕北高原西北部迁徙鸟的比例相对较高 ...
高学斌, 王伟峰, 于晓平
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A link between increased temperature and avian body condition in a logged tropical forest
Conservation Biology, EarlyView.Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi +7 more
wiley +1 more source
野生动物学报, 2006 黑龙江珍宝岛国家级自然保护区位于虎林市东部,总面积23 750hm2。多样的生态环境,为鸟类提供了良好的栖息生境。本区共记录有鸟类251种,占全省鸟类种数的67．84％,包括雀形目鸟类106种,占本区鸟类种数的 41．15％;非雀形目鸟类145种,占本区鸟类种数的58．85％。从留居类型看,包括夏候鸟132种,冬候鸟9种,旅鸟 66种,留鸟39种,偶见5种。从区系特征上看,本区共有古北界鸟类161种,占本区鸟类种数的64．14％;东洋界鸟类7种,占2．79％;广布种83种,占33．07 ...
张希国, 刘长毅
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Mating system, brood parasitism and extra-pair behaviour in the Chinese egret (Egretta eulophotes) basing on the microsatellite technology [PDF]
, 2015 动物的婚配制度影响着个体的繁殖成功率，直接关系到群体的遗传多样性和种群动态的发展变化，是保护遗传学和生态学领域中非常重要的研究内容。已有学者野外观察到黄嘴白鹭（Egrettaeulophotes）存在婚外交配（EPC）行为，然而，有关黄嘴白鹭的婚配制度、EPC的产生机制以及其是否会导致婚外父权（EPP）现象还未清楚。此外，许多集群繁殖的鸟类都存在种内巢寄生（CBP）现象，而关于黄嘴白鹭巢寄生行为的研究也尚未开展。因此，本研究围绕黄嘴白鹭的婚配制度问题，主要开展以下几方面研究： （1）对3种非损伤性样品 ...
戴宇飞
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How much biotic nativeness matters across human demographic groups
Conservation Biology, EarlyView.Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
野生动物学报, 2019 2012年1月—2019年3月在颐和园进行鸟类调查115次，总计585.6 h。共记录到鸟类168种，占北京市有记录鸟类种数351种的47.86%。灰喜鹊（Cyanopica cyanus）、喜鹊（Pica pica）、灰椋鸟（Sturnus cineraceus）、麻雀（Passer montanus）为优势种。留鸟、夏候鸟、冬候鸟和旅鸟分别占鸟类种数的20.24%、26.19%、10.71%和42.86%。逃逸鸟5种：黑领椋鸟（Gracupica nigricollis）、白腰文鸟（Lonchura
滑荣 1 崔多英 1 李淑红 1 刘佳 1 颜素 2 杨静 2 张成林 1 李晓光 1
doaj
Informing spatial conservation prioritization with species’ traits
Conservation Biology, EarlyView.Abstract New Guinea, the most botanically diverse island on the planet, is the location for one of the boldest conservation initiatives. The Manokwari Declaration aims to achieve 70% conservation designation for the Bird's Head Peninsula. This is 40% higher than the 2022 Global Biodiversity Framework target.
Liam A. Trethowan +27 more
wiley +1 more source