Results 31 to 40 of about 63,774 (158)
Wildlife Letters, Volume 3, Issue 3, Page 99-108, September 2025.Climate change is leading to sympatric populations of northern (Glaucomys sabrinus) and southern (Glaucomys volans) flying squirrels; however, we do not know how vital rates like survival are changing following this novel secondary contact. Using mark‐recapture data from sympatric populations, we found nearly identical annual survival rates (0.20 and 0.
Spencer Kielar +4 more
wiley +1 more source
Seasonality of temperature dependence of methane fluxes from natural wetlands
Functional Ecology, Volume 39, Issue 9, Page 2383-2397, September 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperature dependence is a crucial parameter in estimating methane (CH4) fluxes from natural wetlands, yet our understanding of this parameter remains inadequate. Seasonal fluctuations in water levels and ecosystem productivity lead to seasonal differences in CH4 ...
Jinshuai Li +6 more
wiley +1 more source
野生动物学报, 2017 在2015 ～2016年间,分四季调查了乐清湾湿地鸟类资源状况。共调查到鸟类195种,分属16目46科,其中春季11目34科114种9 998只,夏季14目37科98种5 449只,秋季15目42科112种6 569只,冬季11目35科119种7 552只,不同季节鸟类物种数和个体数量差异较大。从丰富度指数看,冬季最高(13.21),夏季最低(8.89)。从多样性指数看,春季最高(4.57),秋季最低(3.95)。从相似度指数看,春季和冬季之间最高(57.82%),春季与夏季之间最低(33.33 ...
孔 强 敖展雄 杨秋花 宫莉霞 鲁庆彬
doaj
A Difficult Start for the UK Labour Government, But Time Is Still on Their Side
World Affairs, Volume 188, Issue 3, Fall 2025.ABSTRACT The newly elected Labour Government in the United Kingdom promised change. However, the first 10 months have been disappointing, characterized by misjudged announcements regarding the Winter Fuel Allowance and Employers' National Insurance contributions. Yet, there is still time to get back on track with welfare reform and create a new welfare
Hefin Gwilym +4 more
wiley +1 more source
, 2009 采用动态密闭气室红外CO2分析法(IRGA),连续定位测定青藏高原东部4种不同恢复阶段的人工云杉林和原始云杉林在冬季(2007.11.01～2008.03.31)的土壤呼吸,用挖壕沟法同步区分土壤自养呼吸和异养呼吸,并同步测定土壤5cm温度和水分.结果表明,土壤5cm温度与冬季土壤呼吸速率具有显著的正指数相关关系,土壤含水量与冬季土壤呼吸的相关性不明显.亚高山针叶林冬季土壤呼吸温度系数Q10值为3.1803～6.5469,不同年龄阶段针叶林的Q10值大小依次为:35a人工云杉林>47a人工云杉林 ...
刘庆, 周非飞, 林波, 李维民
core +1 more source
Zhongguo shiyan zhenduanxue, 2015 目的探讨在不同季节、城乡之间孕妇血清维生素D含量的差异。方法选取2013年6月—2013年8月（夏季）和2013年12月—2014年2月（冬季）我院妇产科收治的正常怀孕中期孕妇分别为夏季组和冬季组,采用高效液相色谱-串联质谱法检测并比较两组孕妇血清25-（OH）D水平,并分别将两组按照城乡居住环境再分组,比较其血清25-（OH）D水平。结果夏季组25-（OH）D水平高于冬季组,差异有统计学意义 ...
王文美
doaj
Integrative Conservation, Volume 4, Issue 2, Page 134-142, June 2025.Our study addresses the significant knowledge gap regarding the wintering population and habitat utilization of the Yellow‐breasted Bunting (Emberiza aureola) in Nepal, providing crucial insights that can aid in the conservation of this critically endangered species in wintering grounds.
Hem Bahadur Katuwal +6 more
wiley +1 more source
, 2017 素材生産量の季節間の平準化を図るため，素材生産量の落ち込む夏季に実施する利用間伐作業について，残存木の損傷と労働負荷の実態を調査した。その結果，夏季も冬季も残存木に傷が発生しており，明確に夏季に傷が発生しやすい事実は確認できず，両季節とも形成層に達する傷の9割以上が，地際から高さ100cm未満で発生していた。また，現場作業員の現場滞在時間は，夏季と冬季で7分しか差がなく，休憩時間は夏季が冬季より12分長かった。journal ...
YOSHINAGA, Akihito +7 more
core
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
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