Results 31 to 40 of about 1,236,804 (154)
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
doaj +2 more sources
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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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
wiley +1 more source
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
wiley +1 more source
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
wiley +1 more source
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
wiley +1 more source
ABSTRACT Globally, there is collective agreement on the need to advance equity within food systems to promote health equity, food security, and social justice through structural transformation. Food systems are shaped by power asymmetries across scales and actors, which influence the realization of the right to food and constrain the agency of ...
Joan Kaburia, Susan J. Elliott
wiley +1 more source
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
wiley +1 more source
Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel +3 more
wiley +1 more source
丰容对白臀叶猴(Pygathrix nemaeus)的采食量及行为影响
对南宁市动物园的3只白臀叶猴(Pygathrix nemaeus)进行笼舍环境丰容和食物丰容,采用瞬时取样和焦点取样法相结合的方式,探讨丰容前后动物的采食量和各种行为变化。研究表明,环境丰容对白臀叶猴行为的影响明显,其中积极行为的时间增加,刻板行为、异常行为显著降低,而独笼圈养的雄性白臀叶猴的一般行为变化不明显,其余2只白臀叶猴的一般行为均增加。食物丰容仅促进了白臀叶猴在采食时增加了探究行为和其他积极行为,对每天的采食量无影响。
陈崇涛 邓加奖 韦定菊 姚永芳
doaj

