Results 41 to 50 of about 60,617 (172)
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
Reconstruction of the Post-Blake excursion using the cosmogenic radio nuclide in Dome Fuji ice core [PDF]
, 2016 第4回極域科学シンポジウム横断セッション：[IC] 極域アイスコア・地形地質・モデリングから迫る古環境変動とそのメカニズム11月13日（水） 統計数理研究所 ３階セミナー室１ ...
佐々木 宣欣 +8 more
core +1 more source
Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, EarlyView.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
Dizhen xuebao, 2018 基于曲线网格有限差分方法研究了垂直走滑断层在不同山体地形情况下的动力学破裂传播，分析并讨论了局部山体地形对断层破裂过程及相应地面地震动的影响，得到了各模型断层面的动力学破裂过程及相应的地表峰值速度特征。研究结果表明，山体地形尺度（山体高度及底部延展距离等）对断层动力学破裂过程影响较大，进而影响到相应的地面地震动分布。当山体地形处于自由地表上亚剪切向超剪切转换的位置附近时，山体地形会阻碍断层面上自由地表超剪切的产生。一般而言，对于具有一定埋深的断层，当山体地形底部延展距离一定时，山体高度越高 ...
Mingfeng Wang +3 more
doaj +1 more source
Limited East Antarctica ice volumes during most of the last glacial cycle - links between ice sheet models and paleoenviornmental records [PDF]
, 2016 第4回極域科学シンポジウム横断セッション：[IC] 極域アイスコア・地形地質・モデリングから迫る古環境変動とそのメカニズム11月13日（水） 統計数理研究所 ３階セミナー室１ ...
core +1 more source
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
Zhejiang Daxue xuebao. Lixue ban, 2019 不同空间分辨率的DEM 会对地理可照时数模拟结果产生显著影响。为了分析DEM 尺度效应对我国不同区域地理可照时数的影响，选取小兴安岭、太行山区、秦岭、青藏高原弧形山区、横断山区和东南丘陵6 个实验区，基于3 种空间分辨率的DEM 和地理可照时数分布式模型，利用GIS 的多层面复合分析功能，模拟了典型月份不同空间尺度的地理可照时数，定量分析了典型地形因子与模拟结果的关系，并探讨了DEM 尺度效应的影响。研究结果表明：（1） 我国地理可照时数差异明显，1 月、7 月及其差异主要受剖面曲率、海拔、纬度 ...
LIJun(李军) +4 more
doaj +1 more source
Millennial-scale sea ice expantion in the glacial Southern Ocean [PDF]
, 2016 第4回極域科学シンポジウム横断セッション：[IC] 極域アイスコア・地形地質・モデリングから迫る古環境変動とそのメカニズム11月13日（水） 統計数理研究所 ３階セミナー室１ ...
山根 雅子 +4 more
core +1 more source
Effects of political identity activation and inaccurate metaperceptions on attitudes toward wolves
Conservation Biology, EarlyView.Abstract Polarization between groups can undermine durable conservation outcomes. Activating group identities (i.e., an individual's sense of self derived from membership in a group) can exacerbate differences, especially when people hold inaccurate perceptions of their peers and rivals.
Alexander L. Metcalf, Justin W. Angle
wiley +1 more source
Shuitu Baochi Xuebao, 2007 以8个植被类型、2个农地和2个退耕地的土壤颗粒组成数据为基础，运用分形模型计算这12个土地利用类型土壤颗粒的分形维数，研究了土壤颗粒分形维数与土壤性状的关系。结果表明：（1）12个土地利用类型表层土壤颗粒的分形维数介于2．8185～2．9249之间。与退耕地和玉米地相比，各林地土壤颗粒分形维数小；与1990年的2．8633相比，2006年土壤颗粒分形维数（2．8592）减小；各团聚体分形维数规律不明显。（2）决定土壤颗粒分形维数大小的首先是〈o．002mm的含量，其次是0．05～0．25mm和0 ...
李进峰 +4 more
doaj