Results 11 to 20 of about 1,240,897 (150)
野生动物学报, 2007 本研究于2005年3月～2006年2月在哈尔滨北方森林动物园内进行,选2对成年丹顶鹤进行了行为观测,结果表明:笼养丹顶鹤繁殖期主要行为活动的时间分配比为采食28.31%、游走22.15%、身体护理21.17%、瞭望13.01%、繁殖行为11.00%、静栖4.36%,且两性间各种行为的时间分配没有明显差异（P＞5%,df=81）;非繁殖期的行为时间分配为采食行为46.65%、瞭望18.92%、身体护理14.72%、游走12.30%、静栖7.40%。笼养丹顶鹤的繁殖行为包括对鸣（6.09%）、炫耀（5.15%
张冬冬, 田秀华, 王晨
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Auto-focus technology and its application based on image processing [PDF]
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
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野生动物学报, 2017 2015年5月～11月,采用目标动物连续观察法对成都动物园圈养的10只山魈的采食行为进行了3期观察和记录,每日观察时间为9:30～10:30和15:30～16:30,每个观察期每只山魈观察7 d。结果表明,山魈的采食行为以蹲坐、走动和站立采食为主。高地位山魈的蹲坐和站立采食显著高于低地位山魈,走动采食低于低地位山魈个体 ...
吴海玲 唐 华 邱云华 刘选珍
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野生动物学报, 2022 动物园是野生动物异地保护的重要场所,研究动物的行为和场地利用情况可以为动物园饲养管理提供参考信息。2018—2019年,采用焦点动物取样法对上海动物园圈养的4只南美貘(Tapirus terrestris)不同季节的日行为节律和场地利用情况进行研究。结果表明:(1)圈养南美貘在07:00—17:00的主要行为是休息、运动和采食。(2)探索、刻板和乞食行为的不同季节日间活动节律存在显著差异 ...
耿广耀
doaj
野生动物学报, 2021 2017年3月—2018年10月，分4个阶段，采取不同丰容方法对上海动物园的1对黑白领狐猴（Varecia variegata）进行丰容试验。在展区内安装摄影机，采用瞬时扫描记录法记录动物行为，扫描取样间隔时间为5 min。结果显示：总体来看，雌雄性的休息行为占比均最大，分别为（5640±714）%和（5431±817）%，雄性的行走、取食行为均多于雌性；雌性的理毛、张望行为略大于雄性。食物丰容和环境丰容都减少了雄性的休息和理毛行为，增加了行走、攀爬、嗅闻和张望行为；但对于雌性来说 ...
王颖倪俊刘群秀裴恩乐
doaj
Wildlife Letters, EarlyView.FoxWatch is a user‐friendly analytical workflow that converts camera‐trap detections into dependable estimates of fox abundance. The user‐friendly Shiny R app standardizes data preparation, employs Simultaneous‐Count Models modeling, and displays uncertainty in clear, comprehensible outputs. By connecting field monitoring with decision‐making, FoxWatch
Duminda S. B. Dissanayake +1 more
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Wildlife Letters, EarlyView.Common cuckoo nestlings from different populations show varying degrees of mimicry of warbler begging calls, with the Yongnianwa population being the most accurate and the Zhalong population the least. Overall, these cuckoos employ a dual strategy: they conservatively mimic the high‐frequency components of host calls while adaptively adjusting their ...
Jiaojiao Wang, Lumeng Xu, Canchao Yang
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Flowers with deep corollas are frequently associated with nectar robbing, a behaviour that often reduces pollen transfer and seed production. Robbing scars, however, may further affect plant reproductive success through rainwater entry into corolla tubes.
Wu Sun +6 more
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World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Agricultural development initiatives in sub‐Saharan Africa have emphasized improved crop varieties as a pathway to food security, resilience, and rural poverty reduction. However, empirical evidence often focuses narrowly on plot‐level outcomes and overlooks whole‐farm effects and the substantial heterogeneity in farmers' management practices,
Kodjo Kondo +4 more
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Integrative Conservation, Volume 5, Issue 3, Page 306-316, September 2026.ABSTRACT In today's rapidly urbanizing world, the survival of wildlife in cities faces significant challenges, and the attitudes of urban residents toward wildlife play a crucial role in their survival. Otters, as top predators in freshwater ecosystems who are highly sensitive to environmental changes, had once gone extinct in Shenzhen—a megacity ...
Changning Liu +5 more
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