Results 41 to 50 of about 39,439 (238)
野生动物学报, 1993 通过十年研究,基本掌握了大袋鼠在人工饲养条件下生长、发育、繁殖的生态及其对饲养生境的需求,成功地完成了两种大袋鼠的连续繁殖,目前已繁殖子代第五代,十年共繁殖两种大袋鼠37只,繁殖价值达30万元以上,支援了广州、沈阳、武汉等七家城市动物园共14只大袋鼠。探讨了大袋鼠繁殖过程中的幼仔掉袋、人工育幼等难点问题。在对掉袋幼仔的急救处理及人工袋育幼等研究中均取得较好成果。
濮燕群
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Linking extinction risk to the economic and nutritional value of sharks in small‐scale fisheries
Conservation Biology, Volume 38, Issue 6, December 2024.Abstract To achieve sustainable shark fisheries, it is key to understand not only the biological drivers and environmental consequences of overfishing, but also the social and economic drivers of fisher behavior. The extinction risk of sharks is highest in coastal tropical waters, where small‐scale fisheries are most prevalent.
Andrew J. Temple +7 more
wiley +1 more source
野生动物学报, 1995 １９９３年１１月至１９９４年２月对南极长城站及其周围地区的巨鹱的分布和数量进行了调查，结果表明巨鹱（Ｍａｃｒｏｎｅｃｔｅｓｇｉｇａｎｔｅｕｓ）在研究区内呈不均匀分布；调查期间共发现繁殖群体６４个，繁殖鸟２２２对，繁殖种群数量估计在３００对左右；种群的繁殖成功率为３７．３９％；人类活动对巨鹱的分布和繁殖成功率都有显著影响。
张正旺, 郑光美, 杨伟祥
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The seasonal change of snow algae on snowpack in Qaanaaq, Greenland in 2013 [PDF]
, 2016 第4回極域科学シンポジウム個別セッション：[OM] 気水圏11月15日（金） 国立極地研究所 ...
大沼 友貴彦 +6 more
core +1 more source
Adivasi (Tea Tribe) worldviews of living close to wild Asian elephants in Assam, India
Conservation Biology, Volume 38, Issue 6, December 2024.Abstract In Assam state, northeastern India, human–elephant conflict mitigation has included technocentric measures, such as installation of barriers, alternative livelihoods, and afforestation. Such measures treat conflict as a technical problem with linear cause–effect relations and are usually ineffective over the long term because they do not ...
Sayan Banerjee +2 more
wiley +1 more source
野生动物学报, 2013 以上海野生动物园21只虹彩吸蜜鹦鹉为研究对象,探讨了在半散养条件下、生活环境有游人介入的环境中,虹彩吸蜜鹦鹉的饲养和繁殖过程,包括繁殖巢箱的设计,对虹彩吸蜜鹦鹉的繁殖行为进行了描述,并对虹彩吸蜜鹦鹉所选择巢箱的特征加以初步分析。结果表明:均衡营养的食物配给、设计合理的繁殖巢箱是保证虹彩吸蜜鹦鹉繁殖的关键。合理的巢箱布局可以有效利用繁殖空间,减少同类竞争和人为破坏。巢内保持干燥也是其营巢产卵的重要条件之一。半散养的生活环境中鼠蛇会影响种群的繁衍生息。虹彩吸蜜鹦鹉在上海地区的繁殖受季节变换的影响 ...
张娟茹
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野生动物学报, 2020 麝鼠（Ondatra zibethicus）是一种珍贵的毛皮动物和香料动物，在繁殖季节能分泌麝鼠香，而其香腺泌香机制尚不清楚。TNFRSF13C（BAFF受体）和TNFRSF4（OX40受体）基因是TNF受体超家族的成员，参与免疫调节、炎症、凋亡，还与自身免疫病和多种器官的形成有关。本研究通过RT-qPCR技术检测繁殖期与非繁殖期麝鼠的心、肝、肺、肾、睾丸、肌肉及香腺中TNFRSF13C和TNFRSF4基因的转录水平，结果显示两者在繁殖期和非繁殖期7个组织中均有表达，在繁殖期麝鼠的心、肝、肺、肾、睾丸 ...
廖光珍, 毕建鑫, 张钰, 白素英
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The enigmatic life history of the bamboo explained as a strategy to arrest succession
Ecological Monographs, Volume 94, Issue 4, November 2024.Abstract Bamboos are perennial woody grasses that display an enigmatic mix of traits. Bamboo is highly shade intolerant like early‐successional trees. Without secondary xylem, bamboos cannot continue to grow once they reach a maximum height or replace xylem damaged by hydraulic stress and must instead replace each stem after a few years using ...
Aiyu Zheng, Stephen W. Pacala
wiley +1 more source
野生动物学报, 2010 济南动物园所饲养的亚洲象（Elephas maximus）于1997年首次繁殖成功,现已繁殖3胎3仔,幼象生长发育正常。在繁殖过程中,对亚洲象的发情、交配、妊娠、分娩、幼象发育等进行了详细观察,积累了亚洲象繁殖的资料和经验。
谢绪昌 +4 more
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