Results 151 to 160 of about 20,824 (277)
, 2000 介绍了内分泌扰乱化学品 (EDCs)的作用机制及其对野生动物影响的研究进展。内分泌化学品可能与性激素受体、甲状腺素受体和其他受体 (如芳烃受体 )结合 ,也可能通过影响动物体内激素的代谢而对动物的生长发育起调控作用。各实验室的重复实验不支持环境雌激素之间存在协同作用的结论。已报道过的人体和野生动物生殖缺陷中具有充分证据的暴露 -效应关系的实例为数不多。尽管野生鱼类变性是英国河流中的一个普遍现象 ,但进一步的实验证明污水处理场出水中的天然和合成雌激素足以引起鱼类的变性反应 ...
邱东茹,吴振斌,贺锋
core
Genetic origins and climate‐induced erosion in economically important Asian walnuts
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little
Peng‐Zhen Fan +17 more
wiley +1 more source
野生动物学报, 2014 由于人类活动、自然气候变化、动物自身等因素,导致中国特有的野生麋鹿种群于19世纪初叶在本土上灭绝。20世纪90年代,通过人类的保护活动,开始将麋鹿在原生地恢复野生种群。野生麋鹿走过了引种扩群、半散养行为再塑、放归自然3个阶段。经过14 a的艰辛努力,人们有计划地实施麋鹿野生放归和自由走出围栏形成野生种群,取得了较好的业绩。目前,中国已拥有大丰野生麋鹿群、石首野生麋鹿群、洞庭湖野生麋鹿群3大野生种群,麋鹿在野外经历了3个繁殖周期,野生麋鹿子三代(F3)已变为现实。截至2012年 ...
丁玉华 任义军 温华军 李鹏飞 高大立 常 青
doaj
Ecological Studies of Marine Virus and its Viral Lysate [PDF]
, 2015 病毒是海洋生态系统中数量最多、多样性最为丰富的一类生命形式，具有极为重要的生态地位。为了深入认识海洋浮游病毒及其裂解浮游细菌释放的裂解产物的生态效应，本论文首先研究了西太平洋典型寡营养海区的浮游病毒对浮游细菌的致死效应；接着研究病毒裂解产物如何在不同营养水平（寡营养和富营养）特征的海洋水体中影响浮游细菌的生长、群落组成等生态特性。此外，本论文以海洋生态系统中一类生态地位非常重要的浮游细菌-玫瑰杆菌（Roseobacter）为研究对象，对其裂解性病毒进行了分离纯化和鉴定 ...
纪建达
core
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans +3 more
wiley +1 more source
月湖底泥疏浚后底栖动物群落的恢复及其与环境的关系 [PDF]
, 2012 研究对月湖底泥疏浚后底栖动物群落动态进行逐月的周年调查,并分析了底栖动物密度、生物多样性与环境因子的关系,结果表明:疏浚导致大型底栖动物基本消失,现存量从疏浚前的(4387±885)ind·m-2降低至(80±21)ind·m-2。疏浚后,寡毛类成为受干扰系统恢复过程中的先锋种类,在春季(4月)和秋冬之际(11月)出现2个密度高峰,分别为(1010±230)ind·m-2和(1538±408)ind·m-2,而摇蚊幼虫在疏浚一年后的秋冬季密度达到高峰(2021±612)ind·m-2 ...
周易勇 +4 more
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Contribution of microcosm experiments to conservation science
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern +3 more
wiley +1 more source