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GMAT
GMAT Verbal Reasoning Section

Effects of Habitat Fragmentation on Species Diversity

Medium Reading Comprehension Interpreting Details

The concept of 'habitat fragmentation' refers to the process by which large and contiguous habitats are divided into smaller, isolated patches through human activity or natural events. This phenomenon can have drastic impacts on biodiversity.

One study in a tropical rainforest examined the effects of habitat fragmentation over a ten-year period. Researchers documented a decline in species diversity, particularly among larger mammals that require extensive territories for feeding and reproductive purposes. Smaller species tended to adapt more successfully, often taking advantage of the newly available 'edge' habitats created by fragmentation. Furthermore, the study revealed that the survival rate of bird species, which were once common, dropped significantly due to increased predation in fragmented habitats.

As a last note, the researchers concluded that conservation strategies should focus not only on preserving remaining habitats but also on restoring connectivity between fragmented sites to maintain ecological balance.

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