At the beginning of twenty-first century, the water crisis in the priority policy andmanagement is inside and outside of the country as principle thoroughly human, social,economic and political rulers of the country is considered abundant. The World Bank hasannounced that during 1960 and 2025, water resources in Middle East, from 3430 m3 for theeach person in year reach to 667 m3 because of pop...

In natural systems, individuals are often co-infected by many species of parasites. However, the significance of interactions between species and the processes that shape within-host parasite communities remain unclear. Studies of parasite community ecology are often descriptive, focusing on patterns of parasite abundance across host populations rather than on the mechanisms that underlie inter...

Molecular techniques have had a profound impact in biology. Major disciplines, including evolutionary biology, now consistently utilize molecular tools. In contrast, molecular techniques have had a more limited impact in ecology. This discrepancy is surprising. Here, we describe the unexpected paucity of ecological research in the field colloquially referred to as ‘molecular ecology.’ Publicati...

A novel model derived from percolation theory suggests that phase polyphenism may have initially evolved in locusts as a behavioural strategy to reduce the connectivity between patches of vulnerable prey, so reducing predation risk.

Cultural ecology is today at a place of rapidly expanding interconnections with the growing number of human-environment approaches in geography and other fields. Productive interconnections are evidenced, for example, in the extensive debate and discussion within geography that surround the varied relations (e.g., theory, methods, roles of science and representation, scale and subject matter) o...