- Ecology, œcology or ecological science, is the scientific study of the distribution and abundance of living organisms and how the distribution and abundance are affected by interactions between the organisms and their environment. The environment of an organism includes both physical properties, which can be described as the sum of local abiotic factors such as insolation (sunlight), climate, and geology, as well as the other organisms that share its habitat. The term oekologie was coined in 1866 by the German biologist Ernst Haeckel the word is derived from the Greek οικος (oikos, "household") and λόγος (logos, "study"); therefore "ecology" means the "study of the household [of nature]".
The word "ecology" is often used in common parlance as a synonym for the natural environment or environmentalism. Likewise "ecologic" or "ecological" is often taken in the sense of environmentally friendly.
 Pertinents links, Free Software and Open-content Textbooks in Ecology
(Constructivist or socioconstructivist approach)
 Wikimedia Projects
Wikispecies : Wikispecies is a project supported by the Wikimedia Foundation with a great potential. It is meant to become an open, free directory of species. In English, Spanish, French, Arabic and others language.
Nature in Wikimedia Commons : Wikimedia is a database of medias files.
Wikiproject Ecology: Articles relating to the study of species in a natural environment.
WikiProject Ecoregions : This WikiProject aims to create articles about each of the 867 terrestrial ecoregions in Earth's 8 major ecozones, using a consistent naming scheme. The articles should be cross-referenced with relevant biology, ecology, physical geography and climate, and nation-state articles.
WikiProject Extinction: This WikiProject aims primarily to create and improve articles on extinct animals, extinct plants and extinction in general.
WikiProject Environment: For articles and categories on the effect of human on the environment.