The use of Urban Forest Parks to improve human-nature relations and cognitive ability performance in older adults.

At present more than 50% of the human population of Planet Earth, live in urban areas. The natural environment is changed considerably by cities: increase of population, productions of tons of waste, daily, change of biodiversity. The relationships human-nature were disrupted in cities due to the artificial construction of infrastructure.

Systems ecology of watersheds of Itaqueri and Lobo rivers and Lobo/Broa reservoir (Itirapina, SP): "a new wine for an old bottle".

In this paper the authors present and discuss the systems ecology of the watersheds and the reservoir (Lobo/Broa), located in Itirapina, SP, Brazil. This is a new approach to an ecosystem studied since 1971. An hierarquical organizing model is shown as well as the response of the biological communities to climate and inputs such as nutrient pulses.