Results 21 to 30 of about 1,838,862 (165)

Genomic responses to increased temperature and pollinator selection in Brassica rapa L.

open access: yesNew Phytologist, Volume 250, Issue 2, Page 1231-1247, April 2026.
Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley   +1 more source

Functional Stability Despite Taxonomic Changes in Mixed‐Species Foraging Flock Participants Along an Elevational Gradient in Knuckles Montane Reserve, Sri Lanka 斯里兰卡纳克斯山地保护区 (Knuckles Montane Reserve) 海拔梯度上混合物种觅食群参与者的功能稳定性与分类变化

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 59-73, March 2026.
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara   +3 more
wiley   +1 more source

基于环境RNA研究西太平洋浅水海山区真核微生物多样性及其与细菌的关系

open access: yesHaiyang yu huzhao
海山遍布大洋海底,由于其特殊海底地形和水文动力环境,孕育了丰富且特殊的生物群落。采用环境RNA技术分析西太平洋M4浅水海山区真核微生物的多样性和分布,并与环境DNA技术检获的结果进行比较,揭示二者的异同。研究发现,RNA和DNA技术检获的表层和DCM层群落结构相似,在200 m以深的水层中群落结构差异较大。共甲藻纲的相对丰度在DNA数据中占比高于RNA数据,因此可能被基于eDNA的技术高估;而甲藻纲和金藻纲则相反,存在被低估的可能性。通过真核微生物与细菌的共现网络 ...
尹 婷婷   +3 more
doaj   +1 more source

中华按蚊自然种群动力学——Ⅲ.净增殖率及其他有关参数

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1985
近年来我国已开始进行中华按蚊实验室种群动力学的观察,加深了了解种群数量变动的原因,对传播疟疾的动力学及媒介防制均有重要的参考价值。但迄今未见有关中华按蚊自然种群动力学的报道。本文是在观察中华按蚊幼虫期在自然界孳生地的存活率的基础上,进一步研究中华按蚊自然种群的净增殖率及其他有关参数,分析构成数学模型的数据对各项参数的影响。
何桂铭
doaj  

Life Stage‐Specific Genetic Diversity and Landscape Characteristics Collectively Influence Genetic Recovery in Pometia pinnata Population 生活史阶段特异的遗传多样性与景观特征对番龙眼种群遗传恢复的协同影响

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 137-149, March 2026.
Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee   +5 more
wiley   +1 more source

佛坪国家级自然保护区大熊猫与潜在捕食者的时空动态

open access: yes野生动物学报, 2022
了解同域分布物种的行为活动在空间和时间上的分化,从群体行为上判断其生态位分化,是揭示其共存机制的重要途径。为了探明秦岭大熊猫(Ailuropoda melanoleuca)与同域分布的金钱豹(Panthera pardus)、黄喉貂(Martes flavigula)和豹猫(Prionailurus bengalensis)3种潜在捕食者的日活动节律、时空生态位及共存机制,于2017年1月—2019年12月在陕西佛坪国家级自然保护区利用红外相机技术开展监测。相关监测数据采用核密度估计 ...
马青青   +8 more
doaj  

Study on Quality Differences of Two High-Temperature Daqu Produced in Beijing and Guizhou Regions(北京与贵州地区2种高温大曲的品质差异研究) [PDF]

open access: yesShipin kexue jishu xuebao
High-temperature Daqu is the main aroma source of sauce-flavor Baijiu, which has an important impact on the style and quality of sauce-flavor Baijiu. Sauce-flavor Baijiu produced in Beijing and Guizhou has local characteristics, but the differences in ...
YANG Yue(杨月)   +6 more
doaj   +1 more source

Deeper sociological insight needed for behaviour change: A systematic review of Chinese ivory consumption

open access: yesPeople and Nature, Volume 8, Issue 2, Page 270-282, February 2026.
Abstract Chinese consumer demand for ivory threatens vulnerable African elephant populations, despite long‐standing efforts to combat the illegal wildlife trade. Behavioural science approaches have been proposed to address these systemic behaviours. However, their robust use remains uncommon in demand management interventions.
Molly R. C. Brown   +3 more
wiley   +1 more source

白头鹤国内圈养种群现状分析

open access: yes野生动物学报, 2015
对中国白头鹤圈养种群的统计学和遗传学结果进行了相关分析,并对种群数量、年龄结构、性比情况、基因多样性、近交系数以及未来100 a种群的发展趋势进行了重点研究。结果表明:截止到2013年12月31日,中国圈养白头鹤种群共有存活个体76只,分别饲养于15家单位,其中建立者的数量为16只,潜在建立者的数量为41只。圈养白头鹤种群中育龄个体充足,但幼龄个体数量不足,种群年龄结构不是很合理。白头鹤种群保留了野生个体92.9%的基因多样性,平均近亲系数为0,是一个没有任何近亲繁殖的优质种群。通过分析发现 ...
何相宝 田秀华 李晓敏 周军英 尹惠媛
doaj  

小飞鼠微卫星位点的筛选及遗传特征分析

open access: yes野生动物学报, 2022
小飞鼠(Pteromys volans)为树栖夜行滑行类啮齿动物(Rodentia),在森林种子传播和维持生态系统平衡等方面发挥着重要的生态学作用。过去不合理的森林采伐,已导致其生存受到一定威胁,为了给小飞鼠东北亚种(P.v.arsenjevi)群体遗传学研究与管理提供重要的分子标记,从鼯鼠科(Pteromyidae)的小飞鼠指名亚种(P.v.volans)、北美飞鼠(Glaucomys sabrinus)、海南小飞鼠(Hylopetes phayrei)、赤颊林飞鼠(H.sagitta)和松鼠科 ...
田新民 杨孟平 宋雅祺 刘小慧 廉明栋 陈 红
doaj  

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