EVERYDAY SCIENCE

Detailed explanation-1: -The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment. Secondary succession occurs after a disturbance such as a forest fire, where there is still some organic matter to allow new plants to grow.

Detailed explanation-2: -Pioneer Species – The first organisms to colonize any newly available area and begin the process of ecological succession.

Detailed explanation-3: -Insects and weedy plants (frequently from surrounding ecosystems) are often the first to recolonize the disturbed area, and these species are in turn replaced by hardier plants and animals. If the area remains undisturbed, the biological community’s ecological structure and species composition can stabilize.

Detailed explanation-4: -The first organisms appearing in the regions of primary succession are pioneer species (usually lichens or mosses). They are the first species present. They must be strong and hardy.