NOTES ON BIO 201 – GENERAL ECOLOGY
INTRODUCTION: WHAT IS ECOLOGY?
The word ECOLOGY has come to the forefront of human consciousness and has become a
commonly used household word.
It has come to be recognized as a science which helps to integrate some of the fundamental
concepts of civilization.
Ecology has emerged as a sciences of survival
Ecology was formed from two Greek words [Gk:
oikos;
home and
logos;
the study of ] – First
coined by Earnst Haechel (1869). Ecology therefore means the study of an organism in its
natural home.
Odum (1963) defined ecology as the study of structure and function of nature or the study of
inter-relationships between organisms and their environment.
ECOLOGY AS A COURSE:
Ecology is part of Biology because it deals with life – probing into the secrets of various levels
living systems – organism, population.
It is a multidisciplinary science that uses the tools of other discipline to explain natural
observed phenomena.
WHO IS AN ECOLOGIST?
An Ecologists is a Physiologists - as such ecology may be interpreted as EXTERNAL
PHYSIOLOGY of an organism and physiology as INTERNAL ECOLOGY of an organism
An Ecologists must be familiar with physics, chemistry, astronomy, geology, climatology, soil
science, statistics, and closely allied areas as taxonomy, morphology, histology, genetics,
physiology and ecology
WHAT DOES HE DO?
He/She seeks with the aid of several instruments both simple and sophisticated to determine
the processes and energy transfer and cycling of elements in nature.
He/she strives to provide a greater depth of understanding and an insight into how the world
works.