Results 131 to 140 of about 122,120 (271)
A link between increased temperature and avian body condition in a logged tropical forest
Conservation Biology, EarlyView.Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi +7 more
wiley +1 more source
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Conservation Biology, EarlyView.Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
How much biotic nativeness matters across human demographic groups
Conservation Biology, EarlyView.Abstract Many central concepts of conservation biology—such as nativeness—are structured by ecological and social factors. However, the social consequences of using these concepts to make conservation decisions remain inadequately understood. Some researchers argue that nativeness, rather than acting as an objective proxy for important ecological ...
Harold N. Eyster, Rachelle K. Gould
wiley +1 more source
Modeling of soil moisture estimation and its application to remote sensing and mapping [PDF]
, 1990 Thesis--University of Tsukuba, D.Sc.(B), no. 570, 1990.
Utsunomiya Yojiro, 宇都宮 陽二朗
core
Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source
ツチ ノ シュウシュク トクセイ ニオヨボス ドジョウ コウゾウ ノ エイキョウ [PDF]
, 1993 【はじめに】土の収縮現象に関する研究は古くから注目されてきたが，粘性土の収縮挙動に関わる因子は多く，それらの因子を分離し検討することは困難であったので，量的な把握が主になされてきた.そしてその結果は土の分類，路床土の判定や凍上性の推定などに利用されてきた.しかし近年，収縮現象は土壌構造との関連での検討が多く見られる.例えば，不攪乱土と練り返し土の収縮挙動を測定することにより，土壊の巨視的な構造の発達の程度が量的に表わせることや,粘質土の物理的挙動に及ぼす吸着カチオンの影響について，土 ...
吉田 力
core +1 more source
Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, EarlyView.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 利用连续3年土壤水分定位观测数据，研究了红壤坡地不同利用方式下土壤水分的时空动态变化规律。结果表明：土壤水分时空动态变化主要受降雨和植被类型的影响。土壤水分季节变化分为相对稳定期、消耗期和补给期三个时段；土壤剖面（0～90cm）水分含量从表层到深层表现为增长型，依据2003年土壤水分标准差和变异系数。将土壤剖面划分为活跃层、次活跃层和相对稳定层3个层次；土壤剖面水分变异系数随降雨量和土层深度的增加而减小，随植被根系的增长而变大。平水年，深根系区与浅根系区土壤水分变化差异表现在30cm深度以下 ...
王晓燕 +3 more
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