Results 21 to 30 of about 18,171 (208)

生物多样性保护的基础工作——生物编目

open access: yes野生动物学报, 2000
生物编目(biological inventory)主要是调查和收集物种、生态系统以及遗传资源的信息,并建立数据库。数据库能够提供生物多样性和生物资源管理所必需的数据,利用这些数据可以建立生物多样性信息系统,信息系统的目的主要在于利用系统中各种数据库建立有关生物多样性监测和评估模型、生物多样性空间分布及其形成机制模型、关键物种长期种群动态模型 ...
汪松, 解焱
doaj  

Exploring gaps, biases, and research priorities in the evidence for reptile conservation actions

open access: yesConservation Biology, EarlyView.
Abstract With over 21% of reptile species threatened with extinction, there is an urgent need to ensure conservation actions to protect and restore populations are informed by relevant, reliable evidence. We examined the geographic and taxonomic distribution of 707 studies that tested the effects of actions to conserve reptiles synthesized in ...
Oliver Speight   +9 more
wiley   +1 more source

大器能成由别慧,人谋有补赖天工——生物学家威尔逊和他的科学成就

open access: yes野生动物学报, 2003
2001年,联合国做出决议,将国际生物多样性日由原来的12月29日改为5月22日。“生物多样性”这个名词对许多中国人来说已经非常熟悉了,但知道这一名词的重要传播者是谁,恐怕寥寥无几。在生物多样性保护领域,不能不提及下面这位响当当的人物,而他对生物多样性保护的贡献只是其科学贡献的一小部分。他就是——
张劲硕, 张树义
doaj  

Influence of reclamation on plant diversity of beach wetlands in Hangzhou Bay and Yueqing Bay in East China(杭州湾和乐清湾滩涂围垦对湿地植物多样性的影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2006
在对乐清湾和杭州湾滩涂湿地的植被、植物种类及围垦时间进行生态调查的基础上,分析了围垦后植物多样性的变化及引起变化的原因.结果显示:(1)建塘时间对植物种类有明显的影响,物种数随着建塘时间的推移而增加;当建塘时间超过30年,其土壤已基本接近中性,群落中的植物种类明显增加.(2)离海塘的距离对物种多样性有着及其重要的影响,一般来说,随着离海塘距离的增加,物种多样性明显增加.(3)土地利用方式对植物种类有明显影响,不同的利用方式,植物种类明显不同.(4)互花米草Spartina ...
SHENJia-hong(慎佳泓)   +5 more
doaj   +1 more source

企业生物多样性绩效规划 与监测指南 [PDF]

open access: bronze, 2021
P. J. Stephenson, Giulia Carbone
openalex   +1 more source

A global indicator of species recovery

open access: yesConservation Biology, EarlyView.
Abstract Monitoring progress toward meeting global biodiversity goals involves several indicators, including, at the species level, the International Union for Conservation of Nature (IUCN) Red List Index (RLI) and the Living Planet Index (LPI). However, at present, there is no indicator specifically for tracking species recovery, despite this being ...
H. Resit Akçakaya   +4 more
wiley   +1 more source

江西南矶湿地国家级自然保护区爬行动物多样性及分布格局

open access: yes野生动物学报, 2022
2019年和2020年的4—9月,采用样带调查法对江西南矶湿地国家级自然保护区爬行动物开展了资源调查,系统分析了南矶保护区爬行动物群落结构、丰富度及空间分布格局。结果表明:区内共记录爬行动物2目6科11种,其中灰鼠蛇(Ptyas korros)和台湾小头蛇(Oligodon formosanus)为保护区物种新纪录; 短尾蝮(Gloydius brevicaudus)为优势种,种群数量占总数的44.07%。从分布型构成上划分,季风型(E)4种、南中国型(S)4种和东洋型(W)3种。多样性分析表明 ...
缪泸君   +5 more
doaj  

Finding floral and faunal species richness optima among active fire regimes

open access: yesConservation Biology, EarlyView.
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

厦门市春夏两季鸟类多样性研究

open access: yes野生动物学报, 2007
通过对代表厦门5种不同生境类型的8个样地进行鸟类调查,共记录到鸟类17目49科242种,占全国鸟类总种数的19.5%,占福建省鸟类总种数的44.7%。与全国鸟类组成相比,厦门鸣禽和涉禽的物种多样性相对比较丰富;比较5种代表性的生境鸟类多样性,农田物种多样性最丰富(Shannon-Wiener指数H′=5.549 63),但是其科属多样性却最低(G-F指数DFG=0.53568);森林生境中科属多样性最高(G-F指数D(FG)=0.872282),特别是科多样性显著高于其他生境(F指数DF=15.8911)
邱春荣
doaj  

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