Results 61 to 70 of about 2,328 (164)
Vulnerability of tropical fish communities across depth in the central Indian Ocean
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Coral reefs and their fish communities below scuba diving depth (>30 m), in mesophotic coral ecosystems (MCEs) (∼30–150 m), in rariphotic (150–300 m), and in upper bathyal waters (300–500 m) are often underexplored, especially in the Indian Ocean.
Paris V. Stefanoudis +12 more
wiley +1 more source
野生动物学报, 2017 研究机场及其周边地区鸟类群落的时空变化规律可为鸟击防范提供科学依据。为了评估鸟击风险等级和制定有针对性的鸟击防范措施,2012年3月～2013年2月,我们采用样线法(共设置8条涵盖净空区树林、水域、农田、村落和灌草丛5种生境类型的样线),对张家界荷花国际机场净空区不同季节的鸟类资源进行了实地调查,并通过比较5种生境中鸟类的物种多样性指数、均匀度指数、物种数和种群密度,分析机场鸟类物种多样性与群落结构时空特征。在荷花机场净空区共记录到92种鸟类,隶属于14目、30科,其中候鸟比例接近50%。春 ...
王海燕 张志强 李益得 李中原 程 军 杨道德
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Study on microbial community and bioavailability of heavy metals during bioturbation in mangrove sediment [PDF]
, 2017 红树林湿地位于陆海交错带，为陆源重金属污染物进入海洋的重要缓冲带。在中国红树林生态系统中，红树植物根系扰动，互花米草入侵以及底栖蟹类扰动是红树林生态系统典型的生物扰动行为，对红树林湿地重金属迁移转化及生物有效性产生深刻的影响。本研究选取入侵植物互花米草、底栖动物蟹类和三种红树植物（白骨壤、秋茄、桐花树）为研究对象，以土壤-植物根系-微生物-土壤动物相互作用的关键区域--植物根际区域和蟹类生存繁殖的场所--蟹类洞为切入点，以红树林湿地典型重金属Cd，Cu，Pb为目标重金属 ...
曾钦辉
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Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado +12 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 通过分析克拉玛依农业开发区水土性状、荒漠植被演替规律和群落多样性,了解到区内植物的生长更新主要靠大气降水来维系,而土壤理化指标中的有机质、全N和全K含量增加是植物群落发展多样性的胁迫因素。与之相反,一定限度下的较高pH和粒度值,则可促进植物多样性水平的提高。分析结果还表明,土壤的全盐、全P和水分是影响植物多样性的潜在因素。
钱亦兵 周华荣 徐曼 蒋进 王雪芹 李东梅 赵从举
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Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead +6 more
wiley +1 more source
Functional Ecology, Volume 39, Issue 11, Page 3255-3268, November 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract The biotic resistance hypothesis (BRH) of Elton posits that diverse communities are more resistant to biological invasions. While the effects of climatic stresses and human disturbances on community invasibility have been extensively studied individually, their combined
Kai Shi, Misbah Naz, Chi Zhang, Hua Shao
wiley +1 more source
Shuitu Baochi Xuebao, 2003 通过对浙江省天台铅锌银矿区侵蚀土壤的微生物活性以及微生物群落功能多样性研究,结果表明:人为开矿使矿区土壤环境呈现不同层次的加速侵蚀特征。矿区侵蚀土壤的几种重金属含量比无明显侵蚀土壤有明显的增加,且其基本理化性质相应变差。矿区侵蚀土壤微生物特征发生了显著的变化,与无明显侵蚀土壤相比,微生物生物量和可培养细菌数量显著降低,但土壤基础呼吸和微生物代谢商(qCO2)值却明显升高。Biolog测试结果显示,随着土壤侵蚀程度的加剧,其微生物群落结构亦发生了相应改变,侵蚀土壤微生物群落的丰富度、多样性指数 ...
滕应 黄昌勇 龙健 姚槐应 刘方
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野生动物学报, 2017 为了深入掌握越冬期湿地水鸟群落多样性及种-多度关系,2016年1月采用定点直接计数法对南矶保护区越冬期湿地水鸟群落进行了监测分析。结果显示:(1)南矶保护区共记录有越冬的湿地水鸟6目12科24种; 物种组成以雁形目和鹤形目鸟种最多(54.16%),其次为鸻形目和鹳形目(33.34%); 区系分布以古北种为主(70.83%),其次是广布种(20.83%); 居留型以冬候鸟占绝对优势(75.00%),其次为留鸟(25.00%); 生态类群以涉禽(54.17%)和游禽(41.67%)占绝对优势 ...
吴庆明 张 琦 姚茂林 黄 显 陈 川 胡斌华 黄晓凤
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Shuitu Baochi Xuebao, 2022 为探讨物种多样性与地上生物量的相关性以及物种多样性的垂直变化特征。以阿尔泰山布尔津林区5种草地类型为研究对象, 通过对布尔津林区各草地类型的调查, 分析了阿尔泰山布尔津林区各草地类型的物种多样性变化特征。结果表明: (1)5个草地群落类型地上生物量差异明显, 荒漠草原和山地草甸草原较低, 山地草原最高, 而山地草甸和高寒草甸处于两者之间。(2)各草地类型群落间的物种多样性指数、优势度指数、丰富度指数和均匀度指数有明显差异, 高寒草甸的物种优势度、多样性和均匀度的情况最好 ...
殷锡凯 +4 more
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