0. 1 Definition of ecology

0.2 History of Ecological Research

0.3 Contents and branches of ecological research

0.4 Ecological research methods

Think about a problem

Recommended reference books

Basic ecology

Chapter 1 Biology and Environment

1. 1 environmental and ecological factors

1.2 Basic principles of the relationship between biology and environment

1.3 light and its ecological function

1.4 temperature and its ecological function

1.5 water and its ecological function

1.6 soil factors and their ecological functions

Reference question

Recommended reference books

Chapter II Population Ecology

2. 1 Basic characteristics of population

2.2 Quantitative characteristics of the population