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Course: Global Functioning of Ecosystems
With the destruction and fragmentation of habitats, the direct harvesting of organisms, climate change, changes in biogeochemical cycles, pollution and, finally, biological invasions, humans have probably triggered the sixth wave of mass extinction of biodiversity. Beyond the ethical issues associated with human impact on the environment, ecologists have identified the harmful consequences of biodiversity loss on the very functioning of ecosystems and the services they provide to our societies. Diversity plays a very important role in the functioning of ecosystems, and the nature of the assemblages of organisms within ecosystems is central to understanding their mechanics. Ecologists use the term ‘functioning’ to refer to the biotic and abiotic properties and/or processes within ecosystems, such as recycling or biomass production. ‘Services’ represent all the benefits that human populations derive from ecosystems, including food production, biological control, pollination, etc.
About the author
Lecturer and tutorial supervisor: Dr. A. ZENTAR
Abdelhafid Boussouf University, Mila
Faculty: Natural and Life Sciences
Department: Ecology and Environment
Target audience: Agro-Ecology L3
Course title: Global functioning of ecosystems
Teaching unit: Fundamental teaching unit
Credits: 04, Coefficient: 02
Duration: 15 weeks (45 hours)
Contact email: zentar.a@centre-univ-mila.dz
Course objectives
Upon completion of this course, students will be able to study ecosystems and how they function.
Prerequisites
Have a basic understanding of ecosystems, how ecosystems function, and the biological rhythms of ecosystems.
Overall plan
I- Concepts of Biocoenosis and Ecosystem
II- Ecosystems Around the World
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
Chapter2
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