Biotic and Abiotic Factors. Different Approaches to the Study of Ecology. Ecology is the study of an organism or organisms and their relationship to the environment. An organism’s environment consists of the physical, chemical and biological factors with which it interacts.
The atmosphere has a tremendous effect on the distribution of plants and animals. Global patterns of circulations affect rainfall patterns and the prevailing wind directions. Changes in air circulation over the Pacific Ocean can lead to events, such as El Nino, which have global repercussions (i.e. torrential rains in the Andes and severe drought in Australia)