M2G8 Biodiversity of Flora and Fauna

BIODIVERSITY OF FLORA AND
FAUNA AROUND THE WORLD

Why There is Biodiversity of

Flora and Fauna in the World ?

Why There is Biodiversity of Flora and Fauna in the World

Biodiversity of flora and fauna arises from several key factors, including:

Varied Habitats: The world has different types of habitats, such as tropical rainforests, grasslands, deserts, and aquatic
ecosystems. Each habitat provides unique environmental conditions that support various plant and animal species.

1.

Evolutionary Adaptation: Flora and fauna species have adapted to their environments over millions of years. Evolutionary
processes have led to the development of different traits and abilities that help species survive in diverse conditions, resulting
in species diversity.

2.

Geographical Conditions: Geographical factors such as mountains, rivers, and climate affect species distribution. This
geographical partitioning can create isolation for species, allowing for the evolution of new species.

3.

Ecosystem Interactions: Interactions between species in ecosystems, such as predator-prey relationships, symbiosis, and
competition, also contribute to diversity. These interactions can influence species evolution and their diversity.

4.

Climate and Environmental Changes: Historical climate changes and environmental conditions have also played
a role in shaping biodiversity. Climate fluctuations can cause species to migrate or adapt, resulting in variations in
flora and fauna.

5.

Colonization and Dispersal: Species that migrate or disperse to new areas can evolve and adapt, resulting in new species
that differ from their ancestors. This increases species diversity in different regions.

6.

Human Activities: While often threatening biodiversity, human activities such as agriculture, fishing, and development can
also introduce new species and create changes in patterns of flora and fauna diversity.

7.

This biodiversity is crucial for ecosystem health and human well-being, as it supports various ecosystem functions such as plant
pollination, climate regulation, and nutrient cycling.

Students are divided into small
groups (4-5 students per group).

Each group discusses the diversity of
flora and fauna around the world.

Each group identifies and presents
the diversity of flora and fauna
globally.

DISCUSS TIME

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