Which statement best describes fragmentation of habitat?

Which statement best describes fragmentation of habitat?

• A. A process of natural pollination
• B. A gradual increase in habitat connectivity
• C. A complete recovery of ecosystems
• D. Transformation of a continuous habitat into smaller, disconnected parts.

Answer: (D)

Fragmentation happens when a once-continuous habitat is broken into smaller, isolated patches, usually by roads, urban development, or agriculture. This breakup makes it harder for species to move between patches, reduces the total habitat available in each patch, and creates edge effects where the environment at the edges differs from the interior. Over time, populations become smaller and more isolated, genetic diversity drops, and the risk of local extinctions rises. The description that matches this idea—transforming a continuous habitat into smaller, disconnected parts—fits fragmentation exactly. The other statements describe pollination, increasing connectivity, or full ecosystem recovery, which are not about breaking habitats apart.

Fragmentation happens when a once-continuous habitat is broken into smaller, isolated patches, usually by roads, urban development, or agriculture. This breakup makes it harder for species to move between patches, reduces the total habitat available in each patch, and creates edge effects where the environment at the edges differs from the interior. Over time, populations become smaller and more isolated, genetic diversity drops, and the risk of local extinctions rises. The description that matches this idea—transforming a continuous habitat into smaller, disconnected parts—fits fragmentation exactly. The other statements describe pollination, increasing connectivity, or full ecosystem recovery, which are not about breaking habitats apart.