What is biodiversity Why is it important for human life?
Biodiversity is important to humans for ecological life support, biodiversity gives a functioning ecosystem that provides oxygen, clear air and water, plant pollutions, pest control, wastewater treatment and lots of ecosystem services.
How does biodiversity loss affect humans?
More… 2.1 Biodiversity loss has negative effects on several aspects of human well-being, such as food security, vulnerability to natural disasters, energy security, and access to clean water and raw materials. For example, actions to increase food production can lead to reduced water availability for other uses.
What are the negative effects of biodiversity?
The main threats facing biodiversity globally are:
- destruction, degradation and fragmentation of habitats.
- reduction of individual survival and reproductive rates through exploitation, pollution and introduction of alien species.
What are the long term effects of loss of biodiversity?
These include water, soil formation and protection, pollution breakdown and absorption, climate stability and recovery from natural disasters. With the loss of biodiversity we have no access to these natural services.
What are some positive effects of biodiversity?
A healthy biodiversity offers many natural services
- Protection of water resources.
- Soils formation and protection.
- Nutrient storage and recycling.
- Pollution breakdown and absorption.
- Contribution to climate stability.
- Maintenance of ecosystems.
- Recovery from unpredictable events.
What are the causes of biodiversity loss?
CAUSES OF BIODIVERSITY LOSS
- Climate change.
- Pollution.
- Destruction of habitats.
- Invasive alien species.
- Overexploitation of the natural environment.
- Extinction of species.
- Threat to human beings.
- Proliferation of pests.
What do you mean by loss of biodiversity?
Likewise, biodiversity loss describes the decline in the number, genetic variability, and variety of species, and the biological communities in a given area. This loss in the variety of life can lead to a breakdown in the functioning of the ecosystem where decline has happened.
When an ecosystem loses biodiversity How does it change quizlet?
What is a consequence of the loss of biodiversity? The local disappearance of one species can have a negative impact on the overall species richness of the community. The organisms within an established ecosystem interact and form relationships with each other over time.
When an ecosystem loses biodiversity How does it change?
A decrease in biodiversity causes a decrease in ecosystem stability, because a change to one organism will have a greater impact on the entire ecosystem. With greater biodiversity, the loss of one type of organism could be moderated by the adaptation of other organisms to fill its role.
What factors is most likely to decrease the stability of an ecosystem?
Factors affecting stability: Disturbance frequency and intensity (how often and what kind of tillage) Species diversity (intercropping or rotations), interactions (competition for water and nutrients from weed species), and life history strategies (do the species grow fast and produce many seeds or slow with few seeds)
What happens in an ecosystem as biodiversity increases?
That is, biodiversity can increase overall ecosystem stability when biodiversity is low, and decrease it when biodiversity is high, or the opposite with a U-shaped relationship.
Why is diversity important in an ecosystem?
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
What are some examples of ecosystems with high biodiversity?
Example of ecosystem with high biodiversity is tropical rain forest as seen in Amazon basin of south America. Such forests are also thriving in parts of central Africa and also in islands of Indonesia. In marine environment, coral reefs are example of high biodiversity aquatic ecosystems.
What is the difference between ecosystems with high and low biodiversity?
High biodiversity, with many species present, is good. It usually means that an ecosystem is healthy and relatively undisturbed by humans. Low biodiversity is characteristic of an unhealthy or degraded environment. A mown lawn in a city park is an example of an ecosystem with low biodiversity.
What ecosystem has the most diversity?
Tropical rain forests
What is the least diverse ecosystem?
the arctic biome