Results 51 to 60 of about 2,328 (164)
野生动物学报, 2021 沿海拔梯度选取不同植被群落的12个样地，通过陷阱及铗日法对秦岭南麓中、东段不同群落中小型兽类物种多样性及分布进行调查，累计2 968个工作日，捕获小型兽类2目6科21种，266只，平均捕获率711%。香农-维纳指数和均匀度指数显示，物种多样性在栎林落叶阔叶林最高，农耕带最低。秦岭中段物种多样性呈现出较为明显的中海拔分布格局，而东段的分布格局不甚明显。此外，两区域常见种存在差异，中段主要为中华姬鼠（Apodemus draco）和四川短尾鼩（Anourosorex squamipes），而东段为大林姬鼠（
赵文超 1# 李琦 2# 赵依然 3 卜书海 2
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Integrative Conservation, Volume 4, Issue 4, Page 569-583, December 2025.Accurate species identification is critical for conserving endangered Firmiana trees in China. However, morphological similarities among closely related Firmiana species complicate its taxonomic identification. We conducted genome skimming on 62 samples representing all 10 Chinese species and discovered nrITS as the optimal DNA barcode, achieving 100 ...
Li‐Jun Yan +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 科尔沁沙地草地退化、沙漠化过程存在着疏林草地、沙质草场、半流动沙地和流动沙地等明显的逆行演替阶段，并且不同的阶段对应着适合本生境的典型群落类型，每一群落优势种的作用明显。草地退化过程中，原生地带性群落及演替早期群落物种丰富、多样性高．结构复杂，随着草地退化、沙漠化过程，群落组成物种数、科属减少．禾本科植物衰退，物种多样性降低，草地群落结构趋于简单、质量下降。在退化的各个阶段，一年生、二年生和旱生植物功能群在各个阶段始终保持着较高的优势地位．对群落生态功能的发挥和维持起着重要作用 ...
左小安 +5 more
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Response of Microbial Community Structure and Diversity to Nitrogen Deposition in Soils of Pinus yunnanensis Forest of the Central Yunnan Plateau [PDF]
[Objective] To study the characteristics of changes in chemical properties and diversity and structural composition of soil microbial communities in Pinus yun-nanensis soils on the Central Yunnan Plateau under nitrogen deposition, and to analyze the ...
DENG Qiujiang +6 more
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Integrative Conservation, Volume 4, Issue 4, Page 652-664, December 2025.We profiled nutritional and physiological markers in captive sifakas, endangered primates from Madagascar, managed in expansive, non‐native forest enclosures. Variation in many markers reflects freely foraged diets and the energy required to maintain homeostasis under more naturalistic conditions.
Lydia K. Greene +5 more
wiley +1 more source
野生动物学报, 2013 本项研究依托吉林省镇赉县的WRSIS系统,分析了当地夏季鸟类群落的多样性,填补了人工湿地与动物群落间关系研究的空白。2011年8月进行鸟类群落调查,将研究区内的生境划分为人工湿地、稻田2种类型,记录观察到的鸟类种类、数量以及对生境的利用方式（觅食、停歇）。计算每种鸟类在不同生境中的总数量和遇见率。采用鸟类个体数、物种丰富度、多样性、均匀度描述鸟类群落特征,对4个指标进行Mann-Whitney U检验,比较组间差异。研究结果表明,人工湿地鸟类数量和遇见率均高于稻田,Mann-Whitney ...
孔维尧, 郭岳, 燕红, 韩晓东
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野生动物学报, 2023 为分析圈养幼年大熊猫（Ailuropoda melanoleuca）向亚成体转变过程中的真菌菌群组成和变化规律，以北京动物园圈养的3只14~36月龄大熊猫为研究对象，通过MiSeq测序平台分别测定3只大熊猫14、16、21、26、31、36月龄粪便样本的真菌菌群多样性和群落功能。结果表明：（1）3只大熊猫个体间的真菌群落多样性和丰富度均无显著差异，26月龄的真菌群落多样性和丰富度均最高；（2）门水平上，3只大熊猫的主要菌门均为子囊菌门（Ascomycota），36月龄与其他月龄差异较大 ...
刘燕 +10 more
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Finding floral and faunal species richness optima among active fire regimes
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Changing fire regimes have important implications for biodiversity and challenge traditional conservation approaches that rely on historical conditions as proxies for ecological integrity. This historical‐centric approach becomes increasingly tenuous under climate change, necessitating direct tests of environmental impacts on biodiversity.
Zachary L. Steel +8 more
wiley +1 more source
Screening and Characteristics of Bacteria and Enzyme for Degradation of Malachite Green from Marine Sediment [PDF]
, 2015 孔雀石绿是一种三苯基甲烷类染料，广泛应用于水产、纺织、造纸等产业，导致水生环境化学需氧量(COD)和生物需氧量(BOD)大幅提高，阻挡光的透射，严重影响水生生物的生长，同时其毒性和致癌性也会通过食物链传递给人类及其他陆生生物。本研究以深海和红树林沉积物中微生物为研究对象，采用富集培养和宏基因组技术对可降解孔雀石绿的微生物及功能基因资源进行挖掘，并对其降解途径及代谢产物进行研究，为近海环境修复提供潜在的、可应用的生物资源 ...
曲武
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