Skip to main content

Table 1 Threats to global biodiversity and their impacts

From: Impact of climate change on biodiversity and food security: a global perspective—a review article

Factors

Impacts on biodiversity

Sources

Habitat loss and fragmentation

Decrease in natural habitat, homogenization of species composition, fragmentation of landscapes, and soil degradation

[40, 67]

Invasive alien species

Competition with and predation on native species

Changes in ecosystem function

Extinctions and Homogenization

[28, 37]

Overexploitation

Genetic contamination

Extinctions and decreased populations

Alien species introduced after resource depletion

[28, 37]

Climate change

Homogenization and changes in ecosystem functioning

Extinctions

Expansion or contraction of species ranges

[28, 37]

Pollution

Changes in species compositions and interactions

Higher mortality rates

Nutrient loading and acidification

[28, 37]

Anthropogenic threats

species extinction

Habitat loss and conversion

Degradation and fragmentation

Over Harvesting

[82, 83]