What factor presents the greatest threat to biodiversity?
Habitat loss from exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that cannot maintain populations of species into the future.
Which factor presents the greatest threat to biodiversity quizlet?
What cause of extinction currently poses the greatest threat to endangered species? Habitat destruction is unquestionably the main cause of species endangerment today.
Which factor presents the worst threat to biodiversity?
The core threats to biodiversity are human population growth and unsustainable resource use. To date, the most significant causes of extinction are habitat loss, introduction of exotic species, and overharvesting. Climate change is predicted to be a significant cause of extinction in the coming century.
What is the single greatest threat to biodiversity quizlet?
human alteration of habitats poses the single greatest threat to biodiversity throughout the biosphere.
What is the single greatest threat of biodiversity?
Habitat destruction is currently ranked as the primary cause of species extinction worldwide.
Which factor is the greatest threat to species extinction?
Although habitat destruction is universally the most dominant threat, over-exploitation (harvesting, trade etc.) is a major threat to mammals, affecting 33% of threatened species. For birds, over-exploitation and invasive alien species both affect about 30% of threatened species.
Which of the following is the most direct threat to global biodiversity?
The three greatest proximate threats to biodiversity are habitat loss, overharvesting, and the introduction of exotic species. The first two of these are a direct result of human population growth and resource use. The third results from increased mobility and trade.
What is the single greatest threat to biodiversity What is the single greatest threat to biodiversity?
The global food system is the single greatest user of Earth’s biodiversity and poses the single greatest threat to that biodiversity. The major causes of biodiversity declines and extinctions—habitat loss and fragmentation, and over-exploitation—are driven largely by demand for food.
What is currently the greatest threat to species?
Habitat loss poses the greatest threat to species. The world’s forests, swamps, plains, lakes, and other habitats continue to disappear as they are harvested for human consumption and cleared to make way for agriculture, housing, roads, pipelines and the other hallmarks of industrial development.
How does habitat loss threaten biodiversity quizlet?
How does habitat fragmentation affect biodiversity? Leads to reduced habitat area so reduced resources. Lowers biodiversity as species have to compete for resources and some will become extinct.