Results 21 to 30 of about 920 (119)
利用1960~2004年NCEP/NCAR全球再分析资料、SMIP2海温资料和我国160站逐月降水和气温观测资料,考虑到大气在从低纬到中高纬地区的能量传播的桥梁作用,首先对冬季印度洋海温距平场与同期北半球500 hPa位势高度距平场进行奇异值分解(SVD),然后分析印度洋海温异常与我国冬季气温和降水的关系.研究结果表明,冬季印度洋海温距平场第1奇异向量(SVD1)是全区一致的单极型分布形势,与我国冬季气温和东南地区降水的相关性非常显著.当冬季印度洋海温距平场第1奇异向量处于正位相时,印度洋海温异常偏暖 ...
CHENGHuiping(程慧萍) +3 more
doaj +1 more source
Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
Habitat and spatial trends of U.K. wintering waterbird populations over 50 years
Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay +8 more
wiley +1 more source
Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi +7 more
wiley +1 more source
Tracking with GPS and accelerometers shows that great evening bats in subtropical China use two overwintering strategies: some remain in continuous hibernation, while others switch between torpor and activity as temperatures change. This behavioral flexibility, shaped by climate, underscores the importance of protecting diverse roosting habitats for ...
Zhiqiang Wang +7 more
wiley +1 more source
Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners
ABSTRACT Orthographic and phonological similarities between first (L1) and second (L2) languages can facilitate L2 processing. Particularly, L1‐Chinese learners of L2‐Japanese can benefit from the shared morphosyllabic Chinese characters (Japanese kanji/Chinese hanzi) because of their similar orthographies.
Xuehan Zhao, Kexin Xiong, Sachiko Kiyama
wiley +1 more source
2007~2008年的春季、夏季、秋季、冬季前期及冬季后期,我们研究了围栏对内蒙古达赉湖地区蒙原羚食物资源的影响。研究结果如下:(1)地上生物量:春季、冬季前期、冬季后期围栏内地上生物量高于围栏外且差异显著(P0.05)。(2)植物高度:春季围栏内植物高度高于围栏外且差异显著(P0.05)。(3)植物盖度:春季、夏季、秋季、冬季前期、冬季后期围栏内植物盖度高于围栏外且差异显著(P0.05),夏季、秋季、冬季前期、冬季后期围栏内植物丰富度高于围栏外且差异显著(P0.05),夏季、秋季、冬季前期 ...
张博 +4 more
doaj
利用1971年以来浙江省68个测站的气候资料,统计分析了大雾日数的空间、时间分布特征及其与气象要素的关系.结果表明:浙江省大雾主要出现在东部沿海、浙北的中部和西部、浙中的西部和浙南的西南地区.浙中的南部和浙南的北部是相对少雾区;全省大部分地区年雾日呈下降趋势,特别是20世纪80年代之后下降趋势明显;各地大雾有明显的季节和地区差异.大雾以冬季最多,春、秋季次之,夏季最少.浙北多大雾日主要出现在春季、深秋至冬季两个阶段,浙中南多大雾日主要出现在深秋到冬季,东部沿海多大雾日主要出现在春季到初夏 ...
TENGWei-ping(滕卫平) +4 more
doaj +1 more source
Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
wiley +1 more source
为明确黄河干流头道拐水文站水沙运动过程、变化趋势及运动状态特征,以2006—2018年黄河干流头道拐水文站水沙数据为基础,基于累积距平法、R/S极差分析法、河道来沙系数与不协调度等研究方法,对头道拐水文站水沙运动过程进行系统分析。结果表明:头道拐水文站年际间径流与输沙量和年内月均径流与输沙量变化趋势均呈现良好的一致性,但两者的季节性差异特征显著,且输沙量的显著性较径流更突出;冬季径流与输沙量变化趋势同步性相比其他季节较差 ...
赵水霞 +6 more
doaj

