Overall plan

I- Concepts of Biocoenosis and Ecosystem

II- Ecosystems Around the World

III- Ecosystems in Algeria

IV- Main Ecosystems

V- How Ecosystems Work

1- Functional Diversity of Ecosystems

2-Biomass and Productivity of Ecosystems

3- Characteristics of Populations and Communities

4- Intraspecific and Interspecific Reactions

VI- The Trophic Structure of Biocenoses

VII- Ecological Rules

VIII- Biological Rhythms


Last modified: Thursday, 12 February 2026, 10:35 PM