نتایج جستجو برای: climatic regions

تعداد نتایج: 379788  

2009
Andrew J Tatem

International air travel has played a significant role in driving recent increases in the rates of biological invasion and spread of infectious diseases. By providing high speed, busy transport links between spatially distant, but climatically similar regions of the world, the worldwide airline network (WAN) increases the risks of deliberate or accidental movements and establishment of climatic...

2001
Gregory J. Retallack

Mountains, ocean currents, forests, and swamps have played an important role in regulating global climate for hundreds of millions of years, but the truly novel event of the Cenozoic was the evolution and expansion of grasslands, with their uniquely coevolved grasses and grazers. Neogene expansion of the climatic and geographic range of grasslands at the expense of woodlands is now revealed by ...

2017
Raymond Nyoka Jimmy Omony Samuel M Mwalili Thomas N O Achia Anthony Gichangi Henry Mwambi

Respiratory syncytial virus (RSV) is one of the major causes of acute lower respiratory tract infections (ALRTI) in children. Children younger than 1 year are the most susceptible to RSV infection. RSV infections occur seasonally in temperate climate regions. Based on RSV surveillance and climatic data, we developed statistical models that were assessed and compared to predict the relationship ...

2012
KENNETH H. KOZAK JOHN J. WIENS

Many studies show that species richness is correlated with climate, especially among local sites within a region. However, few studies have addressed how these climate– diversity relationships actually arise. Only a few processes can directly change species richness (i.e., speciation, extinction, dispersal), and these processes may be best studied by incorporating a phylogenetic perspective. He...

2017
Daniela Jerszurki Jorge L. M. Souza Lucas C. R. Silva

The development of new reference evapotranspiration (ETo) methods hold significant promise for improving our quantitative understanding of climatic impacts on water loss from the land to the atmosphere. To address the challenge of estimating ETo in tropical and subtropical regions where direct measurements are scarce we tested a new method based on geographical patterns of extraterrestrial radi...

2011
Matti Kummu Hans de Moel Philip J. Ward Olli Varis

Traditionally, people have inhabited places with ready access to fresh water. Today, over 50% of the global population lives in urban areas, and water can be directed via tens of kilometres of pipelines. Still, however, a large part of the world's population is directly dependent on access to natural freshwater sources. So how are inhabited places related to the location of freshwater bodies to...

Journal: :The American journal of tropical medicine and hygiene 2002
Russell E Enscore Brad J Biggerstaff Ted L Brown Ralph E Fulgham Pamela J Reynolds David M Engelthaler Craig E Levy Robert R Parmenter John A Montenieri James E Cheek Richie K Grinnell Paul J Ettestad Kenneth L Gage

The relationships between climatic variables and the frequency of human plague cases (1960-1997) were modeled by Poisson regression for two adjoining regions in northeastern Arizona and northwestern New Mexico. Model outputs closely agreed with the numbers of cases actually observed, suggesting that temporal variations in plague risk can be estimated by monitoring key climatic variables, most n...

2014
Francisco T. Peña-Gómez Pablo C. Guerrero Gustavo Bizama Milén Duarte Ramiro O. Bustamante

Species climate requirements are useful for predicting their geographic distribution. It is often assumed that the niche requirements for invasive plants are conserved during invasion, especially when the invaded regions share similar climate conditions. California and central Chile have a remarkable degree of convergence in their vegetation structure, and a similar Mediterranean climate. Such ...

Journal: :International Journal of Current Research in Biosciences and Plant Biology 2016

Journal: :Frontiers in sustainable food systems 2021

Vietnam faces several adverse climatic stresses such as increases in temperature, drought, flooding, saltwater intrusion, and sea-level rise. Past research on climate change adaptation has highlighted that challenges faced by populations vary across the country. In this study, we are interested to know if autonomous responses also vary, depending which stress individuals responding to. To answe...

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