Results 81 to 90 of about 107,409 (290)
Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots
Conservation Biology, EarlyView.Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado +12 more
wiley +1 more source
The Resistance Research and Application of Typical Plants for Island Vegetation Restoration [PDF]
, 2016 植被是海岛生态系统的重要组成部分，海岛植被修复对加快恢复受损的海岛生态环境，改善海岛居民的生活生产条件起关键作用。目前，我国大部分海岛生态破坏比较严重，而海岛植被修复工作起步较晚，海岛植被修复技术还不完善，对环境恶劣海岛植被修复依然缺乏良策。本文依托平潭海岛景观生境修复技术研究与示范项目，以木麻黄（Casuarinaequisetifolia）、夹竹桃（Neriumindicum）和台湾相思（Acaciaconfusa）为实验材料，室内人为控制干旱胁迫、根系盐胁迫和叶片盐胁迫的程度及时间 ...
陈慧英
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, 2003 Microbial degradation of phthalate and dimethyl phthalate esters was investigated using an enrichment culture obtained from sewage sludge. Optimal degradation conditions were determined by an orthogonal test for environmental factors. More than 99% PA at
Fan, Y, Gu, J, Wang, Y
core +6 more sources
野生动物学报, 2020 2014—2016年春季，在贺兰山马麝活动比较频繁的12条沟段对马麝的生境选择进行研究。共记录马麝春季利用样方164个，对照样方77个。利用拟合优度卡方检验及Bonferroni不等式对非数值型生境因子进行分析，结果表明春季马麝偏爱选择位于阴坡的、以青海云杉为优势树种的针叶林带活动。Mann-whitey U检验表明麝春季对于13种数值型生境因子的选择存在显著差异，偏好选择海拔高度高、乔木密度大、乔木高度低、乔木距离近、灌木高度高、灌木距离远、水源距离远、裸岩距离远、隐蔽级高的生境类型。此外 ...
陈俊达 1 +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2014 以雄性SD大鼠为实验动物，研究共轭亚油酸(CLA)和低氧的结合对肌肉脂质代谢的影响.取大鼠血液和肌肉，测葡萄糖、甘油三酯、组织乳酸、肌糖原、游离脂肪酸、胰岛素、脂肪酸合酶(FAS)、脂蛋白酯酶(LPL)、激素敏感酯酶(HSL).结果显示：CLA对大鼠体重没有显著影响(P>0.
ZHANGKai(张凯) +3 more
doaj +1 more source
International Journal of Applied Linguistics, EarlyView.Abstract This study investigated language teachers’ emotion regulation motives (ERMs) and their identity construction in cross‐cultural contexts. Drawing upon qualitative data about eight Chinese as a second language teachers for international students through semi‐structured interviews, classroom observation, and document collection, the study ...
Jiying Han +3 more
wiley +1 more source
, 2009 生物地理学研究是生物学和地理学交叉非常明显的部门自然地理学学科,它具有很强的基础研究特点,同时研究成果也具有很大的应用潜力。近年来,我国生物地理学基础研究在国家自然科学基金委等部门的支持下,在山地植被与地理环境、干旱半干旱区植被与地理环境、植物区系、植物物候、土壤动物与土壤生态功能、土壤生物结皮等方面开展了全面而深入的研究。同时拓展了传统生物地理学的研究方向,在植物地理学与全球变化、植物地理学与生物多样性保护、植物地理学与生态系统管理等方面也开展了大量研究。尤为可贵的是干旱半干旱区土壤生物结皮研究 ...
冷疏影 +8 more
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Zhejiang Daxue xuebao. Lixue banBased on the content of the land and sea "production-living-ecological" space, we measure the ecological coordination efficiency of land and sea from 2000 to 2020 by using the land ecological environment quality index, the ocean ecological environment ...
钱玥(QIAN Yue) +3 more
doaj +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Although psychological factors such as emotion and engagement have gained increasing attention for their role in language learning success, a substantial gap remains in understanding the sources of boredom and its impact on learners’ engagement, whether behavioural, affective or cognitive, in languages other than English (LOTE).
Xian Zhao, Danping Wang
wiley +1 more source
The taxonomy and ecology of benthic diatoms from two different habitats [PDF]
, 2015 本论文通过利用光学显微镜和扫描电子显微镜对来自厦门湾和湖南金鞭溪两个不同生境的底栖硅藻样本进行了深入研究，发现并且在国际上发表了4个硅藻新种，报道了5个海洋底栖硅藻中国新记录种，对金鞭溪底栖硅藻分类及生态学开展了系统的研究，报道了两个淡水硅藻中国新记录种。主要结果如下： 发现了厦门湾4个底栖硅藻新种： 喙状布纹藻(GyrosigmarostratumLiu,WilliamsandHuang,sp.nov.)发现于厦门湾的潮间带低潮区。其壳面为披针形，具有伸长的喙状顶端；壳面相对于纵轴和横轴都对称，不呈 ...
刘冰
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