نتایج جستجو برای: climatic variability

تعداد نتایج: 200630  

Journal: :Journal of Environmental Science and Natural Resources 2012

2017
Georgina Palmer Philip J Platts Tom Brereton Jason W Chapman Calvin Dytham Richard Fox James W Pearce-Higgins David B Roy Jane K Hill Chris D Thomas

Extreme climatic events could be major drivers of biodiversity change, but it is unclear whether extreme biological changes are (i) individualistic (species- or group-specific), (ii) commonly associated with unusual climatic events and/or (iii) important determinants of long-term population trends. Using population time series for 238 widespread species (207 Lepidoptera and 31 birds) in England...

Journal: :journal of agricultural science and technology 2014
k. dugalic r. sudar m. viljevac m. josipovic t. cupic

the aim of the study was to evaluate changes of sorbitol, glucose, fructose, sucrose, and total sugars of plum fruits in different years under different climatic conditions i.e. air temperature and precipitation. the cultivars investigated in the research were: topstar, toptaste, jojo, haganta, tophit, and top 2000. the fruits were harvested at optimal stage of maturity in the experimental orch...

2006
Paulo Lázaro Ortíz Bultó Antonio Pérez Rodríguez Alina Rivero Valencia Nicolás León Vega Manuel Díaz Gonzalez Alina Pérez Carrera

In this study we assessed the potential effects of climate variability and change on population health in Cuba. We describe the climate of Cuba as well as the patterns of climate-sensitive diseases of primary concern, particularly dengue fever. Analyses of the associations between climatic anomalies and disease patterns highlight current vulnerability to climate variability. We describe current...

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...

1999
GERMÁN POVEDA

Climatic factors are associated with the incidence of diverse vector-borne diseases (VBDs). Colombia, located in tropical South America, witnesses high precipitation rates and temperatures, varying with elevation over the Andes. We show how temperatures are linked to malaria incidence throughout the country, and we compare those results with those obtained via simple mathematical expressions th...

Journal: :Science 2003
Katharina Pahnke Rainer Zahn Henry Elderfield Michael Schulz

In order to investigate rapid climatic changes at mid-southern latitudes, we have developed centennial-scale paleoceanographic records from the southwest Pacific that enable detailed comparison with Antarctic ice core records. These records suggest close coupling of mid-southern latitudes with Antarctic climate during deglacial and interglacial periods. Glacial sections display higher variabili...

Journal: :Science 2008
Rémy J Petit Feng Sheng Hu Christopher W Dick

The study of past forest change provides a necessary historical context for evaluating the outcome of human-induced climate change and biological invasions. Retrospective analyses based on fossil and genetic data greatly advance our understanding of tree colonization, adaptation, and extinction in response to past climatic change. For instance, these analyses reveal cryptic refugia near or nort...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید