Results 11 to 20 of about 99,713 (155)
野生动物学报, 2022 为了解栖息地和气候变化对北树鼩（Tupaia belangeri）活动的影响，于2012年8月—2013年7月采用红外相机技术对广西弄岗国家级自然保护区15 hm2森林动态监测样地及其周边区域内的北树鼩进行监测，采用核密度估计、重叠指数及相对活动强度指数分析其日活动节律及季节性变化规律。结果表明：北树鼩的日活动节律模式属于晨昏活动类型（日活动高峰期：07：00—08：00、16：00—17：00）。不同月份间北树鼩的活动强度指数（t=13.072，df=11 ...
唐创斌 刘志尚 黄振华 姚维 林建忠 汪国海 周岐海
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野生动物学报, 2022 季节性繁殖是哺乳动物在长期的进化过程中,为了应对外界环境的变化,选择合适的季节进行繁殖的行为。雄性哺乳动物在非繁殖季节表现为睾丸退化,精子发生的减数分裂过程受阻,进入繁殖季节性腺恢复,重新启动精原细胞的分裂和分化,这种季节性精原细胞分裂和分化与精子发生受到环境因子和多种体内激素的调节。就光周期信号分子——褪黑激素通过TSH-DIO2/DIO3-T3逆行通路和HPG轴—睾酮—视黄酸信号系统对雄性哺乳动物繁殖季节性调控的研究综述可知:褪黑激素通过调控HPG轴的功能促进精子的发生 ...
杨 笛, 陈婉依, 宫泽儒, 杨 明
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野生动物学报, 2006 本文通过潘文石对22只秦岭大熊猫的家域观察资料为基础,获得生态年龄段和家域对数转换值等次生数据, 并以次生数据为基础,对不同生态年龄段和不同季节大熊猫的家域和个体季节性迁移面积的动态特征进行定性比较分析,通过季节、性别和年龄对秦岭大熊猫种群家域动态的影响机制进行了探讨,结果发现以下新细节: （1）虽然在同一季节,大熊猫家域面积随着年龄的增长逐渐增加,但雌性个体家域面积增加不大,雄性个体也仅在夏季家域面积增加极大,秋冬季增加也不大; （2）同一生态年龄段,秦岭大熊猫家域面积:全年>秋冬季>夏季; （3 ...
宋成军 +4 more
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, 2017 汤显祖的《牡丹亭》具有强烈的季节意识，其中提及“春”“秋”等季节之词的章节占总体的80％，“春”“秋”二重唱成为主旋律。《牡丹亭》中的季节不仅仅作为叙事背景被交代，更有机融入了角色的生命意识，是二元对偶的美学呈现、现实与浪漫的重奏、情理之辩的季节意蕴、悲喜剧质的外化彰显。一言以蔽，《牡丹亭》呈现的季节审美与春秋风物，可看作古典文学季节表达的经典范式，值得深入研究。In Tang Xianzu＇s The Peony Pavilion the strong sense of seasons is so ...
陈威俊
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Conservation Biology, EarlyView.Abstract Site fidelity is the tendency for animals to repeatedly return to the same locations, either within or between years. Site fidelity enables animals to utilize knowledge of previously visited locations, including assessments of seasonal variations in health and mortality risks (e.g., predation), resource availability, and social benefits such ...
Tobias A. Ross +13 more
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Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
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World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT Biochemical oxygen demand (BOD) remains a core indicator of organic pollution in freshwater monitoring, but its role in water policy and practice is changing as water‐quality assessment moves toward predictive, integrative, and decision‐support approaches.
Isadora Favero Roque Cenci +5 more
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Habitat and spatial trends of U.K. wintering waterbird populations over 50 years
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay +8 more
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Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
People and Nature, Volume 8, Issue 7, Page 2186-2199, July 2026.Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
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