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Biodiversity And Conservation

Question

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What are major causes of species losses in a geographical area ?

Solution

Major causes of species losses in a geographic area are:

(i) Habitat loss and fragmentation:Loss of habitats due to natural calamities or human activities lead to loss of species diversity.

(ii) Over-exploitation: Due to over-hunting and over-exploitation of various plants and animals by humans, many species have become endangered or extinct .

(iii) Alien species Invasions: Accidental or intentional introduction of non-native species into a habitat lead to the declination or extinction of indigenous species.

(iv) Co−extinction: In a native habitat, one species is connected to the other in an intricate network, thus the extinction of one species causes the extinction of other species.

Some More Questions From Biodiversity and Conservation Chapter

Which is the most species rich taxonomic group among animal ?

The most richest and the most threatened reservoirs of plants and animal life on earth are called :

The regions of earth where a large number of species are found, are called :

‘Chipko movement’ was started to conserve :

1. Sardar Sarovar Dam is built on river......... .
2. Number of wildlife sanctuaries in India are ......... .

3. The bird “Dodo” became extinct because of......... .

4. First Earth summit was held at.........and aimed at.........

Write “True” or “False” :

The practice of controlling the establishment, growth, composition, health, and quality of forests to meet diverse needs and values

Coin one word for the following statements : Genetic variations between distinct populations of same species.

Areas where maximum diversity is found.

What will the loss of biodiversity in a region may lead to?

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