Low-altitude ecologies, which were warmer and experienced low precipitation levels, had the highest densities of A. Aspergilli, whereas cooler high-altitude ecologies had the lowest density of these fungi.
Southern Madagascar has experienced declining precipitation since the 1970's and recurrent drought conditions since 1981, which have almost become chronic [15].
Although both rainforest and dry forest regions experienced reduced precipitation during the 2002 2003 El Niño, only dry forests exhibited a brown-down response.
Humid regions experience more precipitation than evaporation each year, while arid regions experience greater evaporation than precipitation on an annual basis.
The Nelson illustrates the extreme effects of low precipitation in a cool climate, while the Nile, Murray-Darling, and Shaṭṭ Al-ʿArab (Tigris-Euphrates) experience low precipitation combined with high evaporation losses.
Topography is again a modifying factor: the interior northern mountains continue to experience some precipitation, while along the winding coast the afternoon heat is eased slightly by sea breezes.
It is this repository of heat -- through processes like evaporation and ocean overturning -- that drives the changes in weather we are experiencing: heavier precipitation events, sequences of large storms, bitter cold spells and prolonged droughts in some regions.
There is some indication from climate modelling that the Mediterranean, central America and Western Australia regions may experience reduced precipitation, but there is still considerable uncertainty as climate models do not all agree, because local features such as mountains and rainforests can be important, and because of the large range of natural variability.
Newly discovered higher elevation populations experience more precipitation and are buffered from drought.
They experience substantial precipitation and have relatively high runoff from forested watersheds unless altered by agriculture or urbanization.
