Course General Biodiversity Intended for L3 Biology and Ecology of Aquatic Environments students
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Date
2025
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Faculty of Sciences
Abstract
Biodiversity encompasses all living organisms and the ecosystems that host them, as well as
the complex interactions that connect them. It is both the result of a long evolutionary process and
a key factor in maintaining the ecological balance of our planet. Understanding biodiversity, its
components, and the threats it faces is now a major challenge for the conservation of ecosystems
and the sustainable management of natural resources.
This general biodiversity handbook aims to provide a comprehensive overview of the
fundamental concepts related to biological diversity. It explores the different levels of biodiversity
(genetic, species, and ecosystem diversity), the evolutionary mechanisms that shape it, and the
main anthropogenic pressures contributing to its decline. By highlighting the importance of
biodiversity in ecological balance and ecosystem services, this document serves as an educational
tool to raise awareness about the necessity of its conservation.
Designed for students, researchers, and environmental science enthusiasts, this material
provides a foundation for reflection and learning. It is based on recent scientific data and concrete
examples to illustrate both the richness and fragility of life on Earth.
May this handbook serve as a resource to better understand the complexity of the living
world and encourage a more responsible and respectful approach to nature.