Results 31 to 40 of about 26,666 (201)

Representativeness of the Natura 2000 network for preserving plant biodiversity in the European Union

open access: yesConservation Biology, EarlyView.
Abstract The Natura 2000 (N2K) network of protected areas is one of the main tools for area‐based conservation in the European Union (EU), yet its role in preserving plant biodiversity requires better understanding. We examined data kept in the European Vegetation Archive from over 1.2 million vegetation plots and obtained over 14.2 million plant ...
Michele Di Musciano   +41 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  

Use of species’ responses to cryptic anthropogenic disturbances for monitoring biodiversity outcomes in tropical forests

open access: yesConservation Biology, EarlyView.
Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero   +5 more
wiley   +1 more source

Using miniaturized laboratory equipment and DNA barcoding to improve conservation genetics training and identify illegally traded species

open access: yesConservation Biology, EarlyView.
Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva   +9 more
wiley   +1 more source

陕西化龙山国家级自然保护区鸟类物种多样性初步研究

open access: yes野生动物学报, 2014
2010年4月~2011年5月,采用样线法及样点调查法对陕西化龙山自然保护区鸟类多样性进行了初步调查。结果表明,化龙山自然保护区共分布有鸟类16目50科224种。按居留型划分,有留鸟123种,夏候鸟67种,旅鸟25种,冬候鸟8种,迷鸟1种。在区系组成方面,190种繁殖鸟种中,有东洋种100种(52.63%),古北种67种(35.26%),广布种23种(12.11%)。4种生境中的鸟类物种多样性以落叶阔叶林最为丰富(多样性指数H'为3.49),以针叶林和高寒草甸为最低(多样性指数H'为2.52 ...
陈少林 王卫东 龙大学 马小春 李 飏 宋要强 于晓平
doaj  

Threats to and management of Natura 2000 protected areas relative to agricultural practices

open access: yesConservation Biology, EarlyView.
Abstract The Natura 2000 (N2K) network combines biodiversity protection and socioeconomic targets. Human activities, such as agricultural practices, can affect biodiversity in N2K sites in diverse ways. Limiting activities with negative impacts while enforcing land management that supports biodiversity is crucial for effective conservation.
Giorgio Zavattoni   +7 more
wiley   +1 more source

山西庞泉沟针叶林群落植物多样性研究

open access: yesShuitu Baochi Xuebao, 2001
用数量分析的方法研究了关帝山庞泉沟主要森林群落华北落叶松林和云杉林及其交错区的植物多样性.结果表明,随海拔高度的变化,群落的植物多样性指数呈降低趋势;Pielou均匀度指数乔木层呈降低趋势,而灌木层和草本层的变化不太明显.群落交错区的植物多样性明显增加.不同的生长型其多样性的变化表现出不同的特征.群落的β多样性表现出比较复杂的变化趋势.随海拔高度的变化其基本可以分为3个区段,在每个区段表现出的不同特征显示了群落及其交错区物种多样性的变化特征.
李毳
doaj  

In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle

open access: yesConservation Biology, EarlyView.
Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla   +4 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  

Evaluating past and future contributions of conservation programs to species recovery

open access: yesConservation Biology, EarlyView.
Abstract Impact evaluation of conservation actions is a crucial step in global efforts to curb the biodiversity crisis. Through robust impact evaluation, practitioners can assess the effectiveness of conservation strategies and optimize the use of limited resources.
Rebeca E. Young   +10 more
wiley   +1 more source

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