Coping with aridity is a physiological challenge for all organisms, including freshwater ones. Aridity shapes distributions of aquatic species at fine and large geographical scales. Specifically, beetles, the desiccation resistance adults potential constraint colonisation arid regions. We assessed congruence between fundamental realised niche in eight Palearctic lineage water beetles (subgenus ...

Abstract. An inconsistent relationship between precipitation and runoff has been observed drought non-drought periods, with less usually during droughts than would be expected based solely on deficit. Predictability of these shifts in the precipitation–runoff is still challenging, largely because underlying hydrologic mechanisms are poorly constrained. Using 30 years data for 14 basins Californ...

Leaf functional traits in a plant community are the result of effect environmental conditions and have direct impact on ecosystem properties functioning. We analyzed variations five leaf communities from central Argentina under different climatic anthropogenic use determining changes physiognomy. Study sites were located Córdoba province (Argentina) within four phytogeographic units categorized...

The dryness of terrestrial climate can be measured by the ratio of annual precipitation (P) to potential evapotranspiration (PET), where the latter represents the evaporative demand of the atmosphere, which depends on the surface air temperature, relative humidity, wind speed, and available energy. This study examines how the terrestrial mean aridity responds to global warming in terms of P/PET...

The assessment of aridity conditions is a key factor for water management and the implementation mitigation adaptation policies in agroforestry systems. Towards this aim, three indices were computed Iberian Peninsula (IP): De Martonne Index (DMI), Pinna Combinative (PCI), Erinç Aridity (EAI). These first baseline period 1961–1990, using gridded observational data (E-OBS), subsequently, periods ...

Aridity and drought are two inevitable occurrences of the climate change in the region. So, any kinds of planning and futurism, without regard to them, lead to failure. Climate change cause drought phenomenon. The anomalies and irregularities in the precipitation mainly cause drought. Fars Province, one of the important centers of agriculture, population and industry in the country, with specif...

isfahan province is located in the center of iran and has arid and semi-arid climate. in recent years, water shortage has increased in this region and has affected crop production. wheat is one of the most important crops of the province. in the present research, an index (dei) has been developed for drought evaluation using long term climatic data through application of principle components an...

In recent decades, global climate change has made natural hazards increasingly prevalent. Droughts, as a common hazard, have been hot study topic for years. Most studies conducted drought monitoring in arid and semi-arid regions. humid sub-humid regions, due to change, seasonal droughts water shortages were often observed too, but not well studied. This study, using MODIS satellite-based aridit...