1. Light: Light is the most important and indispensable physicochemical, abiotic ecological factor without which life cannot exist. Organisms get light from the Sun, Moon, stars, lightning, volcanoes and bioluminescent organisms. Among this light energy from the Sun is the most important in nearly all ecosystems. It is the energy that is used by green plants (which contain chlorophyll) during [...]
In this article we will discuss about the role of habitat, microhabitat and niche in ecology. Habitat refers to a specific place where a species normally lives. For example, habitat of a tiger is the forest, of a shark is the sea, and of Plasmodium are the red blood cells. More than one animal or plant may live in the [...]
In this article we will discuss about the primary and secondary ecological succession. Primary Succession: Primary succession is the establishment of plants on land that has not been previously vegetated. It begins with colonization and establishment of pioneer species. Primary Succession occurs where no biotic community has previously existed like sand, dry rock, volcanic islands, etc. The area is devoid [...]