What are 3 causes of biodiversity?
Why is biodiversity important?
- Changes in land use (e.g. deforestation, intensive mono-culture, urbanisation)
- Direct exploitation such as hunting and over-fishing.
- Climate change.
- Invasive alien species.
What factors make the biodiversity so high?
The key to high species diversity lies in how dynamically the continents have evolved over time. Tropical rainforests are the most biodiverse habitats on Earth. They are home to a huge number of different plants, animals, fungi and other organisms.
What are the 4 factors that affect biodiversity?
Important direct drivers affecting biodiversity are habitat change, climate change, invasive species, overexploitation, and pollution (CF4, C3, C4. 3, S7).
What are the 4 types of biodiversity?
Four Types of Biodiversity
- Species Diversity. Every ecosystem contains a unique collection of species, all interacting with each other. …
- Genetic Diversity. Genetic diversity describes how closely related the members of one species are in a given ecosystem. …
- Ecosystem Diversity. …
- Functional Diversity.
What are major factors that are responsible for loss of biodiversity?
Reason for Loss of Biodiversity
- Habitat destruction. Habitat destruction is a major cause of biodiversity loss. …
- Invasive Species. …
- Over-exploitation of Species. …
- Global Warming and Climate Change. …
- Pollution. …
- Human Overpopulation. …
- Natural Calamities. …
- Genetic Pollution.
Why do some places so higher diversity than others?
There are at least three possible scenarios or “routes” that a region may follow to become a biodiversity hotspot: a region can have lots of species because it generates species at faster rates than nearby areas, or because they import species from their surroundings at faster rates (that is, they attract species), or …
What are the factors that affect diversity?
Primary dimensions of diversity include age, ethnicity and culture, gender, race, religion, sexual orientation, and capabilities (Schwind, Das, & Wagar, 2007). Secondary, diversity includes mainly factors such as socio-economic sta- tus, education, religion, geographical affiliation and marital status (Sweetman, 2004).
What are the 5 main factors affecting 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.
How does area affect biodiversity?
Area increases diversity because a larger plot is likely to have more habitats, hence niches, to support a greater variety of species. In addition, many species require a large range for adequate prey or seed forage.
What are the three pressures that lead to biodiversity?
Three major interacting drivers affecting all these pressures have been (and will be) climate, human population growth and the demands placed on the environment to support human lifestyles. It will be important to address all three of these drivers if pressures on biodiversity are to be reduced to desirable levels.