NEET BIOLOGY

Detailed explanation-1: -Examples include prairies being invaded by woody species such as eastern red cedar and streams being degraded by runoff of sediments and chemicals from adjacent cropland. Habitats can also be degraded when natural process they depend on, such as fire or flooding, are altered by human activity.

Detailed explanation-2: -Deforestation is a particular concern in tropical rain forests because these forests are home to much of the world’s biodiversity. For example, in the Amazon around 17% of the forest has been lost in the last 50 years, mostly due to forest conversion for cattle ranching.

Detailed explanation-3: -Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance.

Detailed explanation-4: -Fragmentation by deforestation occurs through the loss of natural habitat and the pattern of clearing, which result from the interactions of biotic, abiotic and human socio-political factors (Zeilhofer et al. 2014). Fragmentation has a significant effect on overall habitat availability and quality (Dixo et al.