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.
- Pollution.
- Invasive alien species.
What are the factors affecting biodiversity?
Major threats to biodiversity are:
- Habitat destruction/Deforestation.
- Introduced and invasive species.
- Genetic pollution.
- Over exploitation.
- Hybridization.
- Climate change.
- Diseases.
- Human over-population.
What are 3 levels of biodiversity in an ecosystem?
Biodiversity is usually explored at three levels – genetic diversity, species diversity and ecosystem diversity. These three levels work together to create the complexity of life on Earth.
What factors do you think could affect the biodiversity of an ecosystem?
Some things that can influence biodiversity are things like population, over harvesting and over exploration of an area, pollution, climate change, introducing exotic species and many more things. ~Population: The number of organisms living in an area.
What are the two factors that affect species diversity?
The factors related to these patterns of small- scale species richness include (1) geographic factors such as scale of observation, available species pool and dispersal patterns, (2) biotic factors such as competition or predation and (3) abiotic environmental factors such as site resource availability, disturbance and …
What are 5 things that affect 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 are the 3 levels of biodiversity and why are they important?
Biodiversity occurs in three different levels: Genetic, Species, and Ecosystem. Genetic diversity refers to the differences within members of a species and their ability to adapt to changes. Species diversity refers to the total number of plant, animal, and insect species that can be found in a particular region.
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.
What factors affect biodiversity Why do wetlands have a high level of biodiversity?
Wetlands have a high level of biodiversity because of the amount of resources available. The high levels of accessible water, nutrient levels, and primary productivity allow for a large number and variety of organisms at the base of the food web.
What are the 3 kinds 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.
How do humans affect biodiversity?
Humans affect biodiversity by their population numbers, use of land, and their lifestyles, causing damage to habitats for species. It is important for humans to realize how their actions affect biodiversity and the importance of maintaining what biodiversity is left on the earth.
Why is biodiversity important to ecosystems?
A larger number of plant species means a greater variety of crops
What is the impact of biodiversity loss?
Biodiversity loss has a negative impact on our societies; it negatively affects or contributes to the health of individuals, the climate, natural resources, pollution, poverty and the extinction of species. In the past years, biodiversity has been increasing faster than at any other time in human history.
