The following are images from various ecology-related articles on Wikipedia.
Image 1Global oceanic and terrestrial phototroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary production potential and not an actual estimate of it. (from Ecosystem)
Image 2An Antarctic rock split apart to show endolithic lifeforms showing as a green layer a few millimeters thick (from Habitat)
Image 3Table visualising size-symmetric competition, using fish as consumers and crabs as resources. (from Community (ecology))
Image 5Dense mass of white crabs at a hydrothermal vent, with stalked barnacles on right (from Habitat)
Image 6a) A trophic pyramid showing the different trophic levels in a community. b) A food web of the same community (from Community (ecology))
Image 7Few creatures make the ice shelves of Antarctica their habitat, but water beneath the ice can provide habitat for multiple species. Animals such as penguins have adapted to live in very cold conditions. (from Habitat)
Image 17Wetland habitat types in Borneo (from Habitat)
Image 18A simple trophic cascade diagram. On the right shows when wolves are absent, showing an increase in elks and reduction in vegetation growth. The left one shows when wolves are present and controlling the elk population. (from Community (ecology))
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena.
The word nature is borrowed from the Old Frenchnature and is derived from the Latin word natura, or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, natura is mostly used as the Latin translation of the Greek word physis (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord.
The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socratic philosophers (though this word had a dynamic dimension then, especially for Heraclitus), and has steadily gained currency ever since. (Full article...)