نتایج جستجو برای: climatic regions

تعداد نتایج: 379788  

Journal: :Evolution; international journal of organic evolution 2006
Kenneth H Kozak John J Wiens

Recent speciation research has generally focused on how lineages that originate in allopatry evolve intrinsic reproductive isolation, or how ecological divergence promotes nonallopatric speciation. However, the ecological basis of allopatric isolation, which underlies the most common geographic mode of speciation, remains poorly understood and largely unstudied. Here, we explore the ecological ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Brian F Cumming Kathleen R Laird Joseph R Bennett John P Smol Anne K Salomon

Inferences of past climatic conditions from a sedimentary record from Big Lake, British Columbia, Canada, over the past 5,500 years show strong millennial-scale patterns, which oscillate between periods of wet and drier climatic conditions. Higher frequency decadal- to centennial-scale fluctuations also occur within the dominant millennial-scale patterns. These changes in climatic conditions ar...

Journal: :Ambio 2004
George M Woodwell

Mountainous regions offer not only essential habitat and resources, including water, to the earth's more than 6 billion inhabitants, but also insights into how the global human habitat works, how it is being changed at the moment as global climates are disrupted, and how the disruption may lead to global biotic and economic impoverishment. At least 600 million of the earth's more than 6 billion...

2017
Ann Milbau Nicolas Vandeplas Fred Kockelbergh Ivan Nijs

Climate change is expected to force many species in arctic regions to migrate and track their climatic niche. This requires recruitment from seed, which currently shows very low rates in arctic regions, where long-lived and vegetatively reproducing plants dominate. Therefore, we pose the question whether recruitment (germination and seedling establishment) in arctic regions will significantly i...

2015
Darren J. Kriticos Sarah Brunel Noboru Ota Guillaume Fried Alfons G. J. M. Oude Lansink F. Dane Panetta T. V. Ramachandra Prasad Asad Shabbir Tuvia Yaacoby Ben Bond-Lamberty

Pest Risk Assessments (PRAs) routinely employ climatic niche models to identify endangered areas. Typically, these models consider only climatic factors, ignoring the 'Swiss Cheese' nature of species ranges due to the interplay of climatic and habitat factors. As part of a PRA conducted for the European and Mediterranean Plant Protection Organization, we developed a climatic niche model for Par...

2014
Kristina L. Paxton Emily B. Cohen Eben H. Paxton Zoltán Németh Frank R. Moore

Predicting how migratory animals respond to changing climatic conditions requires knowledge of how climatic events affect each phase of the annual cycle and how those effects carry-over to subsequent phases. We utilized a 17-year migration dataset to examine how El Niño-Southern Oscillation climatic events in geographically different regions of the Western hemisphere carry-over to impact the st...

2014
Yuntao Bai Zhiguang Xu Jing Zhang Deqiang Mao Chao Luo Yuanyuan He Guodong Liang Bo Lu Michael S. Bisesi Qinghua Sun Xinyi Xu Weizhong Yang Qiyong Liu

BACKGROUND In this study, we aim to identify key climatic factors that are associated with the transmission of Japanese encephalitis virus in areas located near the Three Gorges Dam, between 1997 and 2008. METHODS We identified three geographical regions of Chongqing, based on their distance from the Three Gorges Dam. Collectively, the three regions consisted of 12 districts from which study ...

Journal: :International journal of biometeorology 2014
Caroline Brosy Ksenija Zaninovic Andreas Matzarakis

Tourism is one of the most important economic sectors in Croatia. The Adriatic coast is a popular travel destination for tourists, especially during the summer months. During their activities, tourists are affected by atmospheric conditions and therefore by weather and climate. Therefore, it is important to have reliable information about thermal conditions as well as their impacts on human bei...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید