Habitat destruction, habitat fragmentation, habitat degradation (pollution), global climate change, and overexploitation. The result of expansion of human activities and the primary cause of loss of biological diversity.
What are the four main threats to biodiversity?
Five main threats to biodiversity are commonly recognized in the programmes of work of the Convention: invasive alien species, climate change, nutrient loading and pollution, habitat change, and overexploitation.
What is the main threat to biodiversity?
Climate change was ranked as a 6% risk to Earth’s biodiversity. WWF’s Living Planet Report 2020 has ranked the biggest threats to Earth’s biodiversity. The list includes climate change, changes in land and sea use and pollution. The WWF used data from over 4,000 different species.
What is biodiversity and threats of biodiversity?
The human population requires resources to survive and grow, and many of those resources are being removed unsustainably from the environment. The three greatest proximate threats to biodiversity are habitat loss, overharvesting, and introduction of exotic species.
What are the 5 major causes of biodiversity loss?
Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming.
What are the 3 types of biodiversity?
Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity. Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms.
What are the main causes of threat to ecosystem?
(i) Hunting and poaching by greedy hunters for commercial purpose and their profits. (ii) Pollution due to chemical and industrial waste and acid deposits. (iii) Introduction of alien species and reckless cutting of forests to bring land under cultivation. (iv) People have inhabited the areas by clearing the forests.
What kind of threats to the biodiversity may lead to its loss?
The four main reasons responsible for the loss of biodiversity are loss of habitat, over-exploitation, the introduction of the co-extinction of species and exotic species.
What are the cause of biodiversity and destruction?
Habitat destruction is a major cause of biodiversity loss. Habitat loss is caused by deforestation, overpopulation, pollution, and global warming. Species that are physically large and those living in forests or oceans are more affected by habitat reduction.