Results 31 to 40 of about 1,666,495 (163)

A framework for integrating resilience indicators into risk assessments

open access: yesConservation Biology, EarlyView.
Abstract Globally, ecosystems are increasingly threatened by climate change and human pressures, yet ecosystem risk assessments predominantly emphasize exposure to stressors while overlooking intrinsic ecosystem resilience—the capacity to absorb and recover from disturbances.
Benoît Pichon   +4 more
wiley   +1 more source

Integrating Indigenous knowledge and modern statistical approaches to model wildlife density based on animal track counts

open access: yesConservation Biology, EarlyView.
Abstract In multiuse areas outside formal protection, sustaining both wildlife and people is critical to wildlife conservation and coexistence efforts. Botswana's Kalahari hosts one of sub‐Saharan Africa’s largest unprotected areas supporting free‐ranging wildlife.
Marie‐Charlotte Gielen   +7 more
wiley   +1 more source

A review of country ambition in targeting important areas for biodiversity under the Kunming–Montreal Global Biodiversity Framework

open access: yesConservation Biology, EarlyView.
Abstract Targets 1 and 3 of the Kunming–Montreal Global Biodiversity Framework (KMGBF) require actions to focus on areas of importance for biodiversity—a prerequisite for reversing biodiversity loss and halting human‐induced extinctions as set out in the Mission and Goals of the KMGBF.
Felicia A. Collins   +6 more
wiley   +1 more source

沙鳅亚科鱼类线粒体DNA控制区结构分析及系统发育关系的研究

open access: yes, 2005
对沙鳅亚科鱼类3属14个代表种的线粒体DNA控制区序列的结构进行了分析。通过与鲤形目鱼类的控制区序列进行比较,将沙鳅亚科鱼类的控制区分为终止序列区、中央保守区和保守序列区三个区域。同时识别了沙鳅亚科中一系列保守序列,并给出了它们的一般形式。以胭脂鱼为外类群,对比条鳅亚科、花鳅亚科、以及平鳍鳅科的代表性种类,采用NJ、MP和ML法构建沙鳅亚科的分子系统树。分子系统发育分析表明,沙鳅亚科为一单系,包括3个属:沙鳅属、副沙鳅属和薄鳅属,各属均构成单系。根据分子系统学、形态学的结果及地理分布推断 ...
唐琼英,刘焕章,杨秀平,熊邦喜
core   +1 more source

Ecosystem service gradients at protected area borders reveal multiple patterns and prevalent management conflicts

open access: yesConservation Biology, EarlyView.
Abstract Protected areas cannot halt biodiversity loss in isolation; integrating them with surrounding human‐dominated landscapes is critical. However, this integration is challenged by substantial landscape heterogeneity at protected area borders, making it difficult to determine cross‐border changes in ecosystem service provision.
Alberto González‐García   +7 more
wiley   +1 more source

福建邵武将石地区维管束植物区系分析 [PDF]

open access: yes, 2006
福建邵武将石地区的植物区系处于泛北极植物区,中国-日本森林植物亚区的华东地区,有维管束植物173科461属915种(含种下单位).该区植物种类丰富,具有许多珍稀、古老、孑遗植物成分.在科、属水平上对其区系特征进行了分析,结果表明:热带分布类型的科占绝对优势,共77科,占53.1%;温带分布类型有37科,占25.5%;属的区系成分中,属的热带分布类型计197属,占区总属数的52.2%,温带分布类型共有169属,占44.9%.可见该植物区系的热带、亚热带成分占主导地位,温带成分次之 ...
林鹏, 李振基, 陈俊德, 侯学良
core  

Assessing and quantifying variations in the functioning of marine food webs across scales

open access: yesConservation Biology, EarlyView.
Abstract The mismatch between the scale of ecological processes and management decisions represents a significant challenge in marine conservation. This misalignment can result in ineffective conservation measures and compromise the sustainability of marine ecosystems.
Izaskun Preciado   +16 more
wiley   +1 more source

中国淡水与土壤有壳肉足虫最新分类名录及其区系分析

open access: yes, 2004
在回顾中国淡水与土壤有壳肉足虫研究历史的基础上 ,根据最新分类系统修订了已报道淡水与土壤有壳肉足虫的分类 ,共计 3纲 3目 2 0科 38属 2 4 4种 (包括 5 2亚种 )。其中淡水种类 37属 2 33种及亚种 ,土壤种类 18属 6 4种及亚种 ,淡水与土壤共有 17属 5 3种及亚种。首次对中国淡水有壳肉足虫进行区系分析 ,用Jaccard共同系数分析西藏、贵州梵净山、湖南索溪峪、湖北东湖、江苏南京等 5个地区的淡水有壳肉足虫区系相似性 ,区系相似性系数在 0— 0 2 5或 ...
杨军,冯伟松,缪炜
core   +1 more source

Assessing Argument Quality in L2 Argumentative Writing: Integrating Argument Elements and Intellectual Standards

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Many existing rubrics for L2 argumentative writing prioritize form‐based linguistic accuracy and complexity while insufficiently addressing substantive argumentative rigor and effectiveness. This limitation is further complicated by cross‐cultural variation in rhetorical conventions and educational practices, which challenge the direct ...
Zihan Xu, Peiyun Liu
wiley   +1 more source

What Contributes to Self‐Efficacy in Speaking Chinese as a Foreign Language: A Social Cognitive Perspective

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Grounded in social cognitive theory, this study investigated how high‐evidence factors jointly contribute to Chinese‐as‐a‐foreign‐language (CFL) speaking self‐efficacy. Data from 236 CFL learners in Beijing revealed a multifaceted pattern of associations.
Peijian Paul Sun   +3 more
wiley   +1 more source

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