Results 41 to 50 of about 21,123 (169)
Guanotrophy: Waterbirds Pay for Using Resources at Their Wintering Habitats 鸟粪营养学 ：水鸟在越冬栖息地使用资源后留下回报
Integrative Conservation, Volume 3, Issue 4, Page 382-397, December 2024.Significant waterbird colonisation was recorded in the wintering period (October through March in 2018–2019 and 2019–2020) in wetlands on Central Asian and East Australasian Flyways. Different limnochemical conditions influenced nitrate and phosphate concentrations.
Arkajyoti Mukherjee +3 more
wiley +1 more source
野生动物学报, 1995 如何利用光周期提高鹿的冬季生长速度（新西兰）吉姆斯·Ｍ·萨提等前言温带的鹿类常表现出季节性生长，也就是说活体体重的增长在春夏两季比秋冬季节快。当年的雄性马鹿断奶后在秋季长势很好，日增重为３００ｇ，但在冬季从５月到８月①其最大增长速度为１５０ｇ／ｄ左右...
刘大荣, 王树贤
doaj
Electric charges observation of snow fragments from thunderclouds in winter at several points and presumption of the cloud behaviour [PDF]
, 1996 In order to analyze the structure of thundercloud and to estimate a thunderbolt position m Hokuriku district, total observation of thunderbolts and their thunderclouds that is sponsored by Hokuriku Electric Power Co. was carried out in Mikuni area, Fukui
加藤 正 +4 more
core +1 more source
Wildlife Letters, Volume 2, Issue 2, Page 73-82, June 2024.Molecular markers are widely used in conservation genetics of wildlife. A total of 15 novel microsatellite loci with high polymorphism of Blue‐crowned laughingthrush were developed in this study. The genetic diversity level of wild individuals was higher than two captive populations including Ocean Park Hong Kong and Nanchang Zoo. The genetic diversity
Xinghe Gao +8 more
wiley +1 more source
Distribution patterns of 210Po and 210Pb and particle export in the Taiwan Strait [PDF]
, 2015 台湾海峡是南海和东海之间物质和能量交换的重要通道。黑潮分支、南海暖流以及大陆沿岸流等多种水系携带众多物质在此交汇并发生互相作用，形成了复杂、多变的海水环境。在几天至季节时间尺度上，海水环境可发生显著变化。因此，采用合适半衰期的放射性同位素能揭示一定时间尺度上海水环境的宏观变化。鉴于台湾海峡颗粒动力学研究很少，本论文以台湾海峡西部海域为重点研究海域，选择适合于研究季节变化的210Po-210Pb同位素指标，开展台湾海峡颗粒动力学过程的初步研究。论文对台湾海峡沿岸地区210Po ...
张立浩
core
Conservation Biology, Volume 38, Issue 2, April 2024.Abstract Aquaculture can provide foraging habitat for birds, but it can also result in intentional and accidental mortality. We examined an overlooked conflict between razor clam (Sinonovacula spp.) aquaculture and declining shorebirds in southeastern China's Fujian and Zhejiang provinces.
Dan Liang +10 more
wiley +1 more source
野生动物学报, 1980 一、试验材料及方法水貂是一种季节性换毛的动物。每年春季脱冬毛长夏毛,秋季则脱夏毛长冬毛,年年如此。这是水貂在长期的系统发育过程中,经自然选择而形成的一种适应性特征。在自然状况下,水貂秋季换毛是从8月底9月初开始,到12月上旬,冬季毛皮完全成熟,共经历90天左右的时间 ...
邹兴淮 +4 more
doaj
Study on the responses of Bougainvillea to the cold stress [PDF]
, 2015 本实验以三角梅为实验材料，研究了不同品种的三角梅对低温的适应性，旨在探究不同品种的抗寒力高低，为三角梅向北方引种提供理论依据。实验主要分为野外实验和室内试验两部分，主要结果如下： 1.确定21个三角梅品种的冬季适应等级 经过对厦门市三角梅在越冬期间的形态观察，确定三角梅21个品种的冬季低温适应能力，冬季的低温对三角梅的生长造成一定的影响。品种不同，其抗寒力不同，抗寒力强的三角梅品种的多数叶片不凋落，枝条没有明显的寒害症状，抗寒力差的三角梅品种的多数叶片凋落，植物的生长受到低温的抑制 ...
王振
core
Wildlife Letters, Volume 2, Issue 1, Page 33-43, March 2024.Human–carnivore conflicts are major global challenges. In Northern Pakistan, the conflict between humans and gray wolves poses a significant threat to their populations, primarily due to livestock predation. This study in the Shigar valley from 2019 to 2021 revealed a link between higher altitudes and more wolf attacks on livestock.
Muhammad Zaman +5 more
wiley +1 more source
Seasonal and intra-seasonal dynamics of sea surface pCO2 on the mid-shelf of the East China Sea: buoy-based time series observations [PDF]
, 2015 近岸水体在全球海洋碳循环中扮演重要角色，但由于其地处海陆交界以及受人为活动的扰动，近岸水体的碳循环过程复杂且多变，这种复杂的变化过程也反映在海水二氧化碳分压（pCO2）随时间的剧烈波动上。鉴于近岸水体海表pCO2的时间变异性，特别需要长期高频的时间序列观测，以甄别其在不同时间尺度的变化规律和调控机制，并且为一些难以通过船载观测捕捉到的短期剧烈变化事件（如台风）提供研究的机会。 本研究主要基于浮标观测，该浮标观测点位于东海中部陆架（124.5°E31°N），水深约60m ...
吴瀛旭
core