How does habitat destruction differ from habitat fragmentation?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

biodiversity loss A sea turtle swimming over a bleached coral seascape near Heron Island, February 2016.

In ecology, both habitat destruction and habitat fragmentation are forms of habitat loss that contribute to biodiversity loss, but they differ in how they alter the landscape.1

Habitat Destruction

Habitat destruction occurs when an ecosystem is transformed to such an extent that it can no longer support its native species. This process typically involves the removal of most vegetation, such as clearing forests for agriculture or livestock grazing. Because the living space is effectively eliminated, organisms are forced to migrate or face death.1

Habitat Fragmentation

Habitat fragmentation also reduces the total amount of available habitat, but it does so by subdividing large, continuous blocks into smaller, isolated patches. Rather than completely transforming the entire area, it creates a "matrix" of altered land between these fragments. The impact depends on the distance between patches and the nature of the intervening space; while some mobile species may navigate small gaps, fragmentation can isolate populations, hinder reproduction, and increase exposure to predators or environmental hazards.1