A high index value suggests a stable site with many different niches and low competition (high richness and evenness) A low index value suggests a site with few potential niches where only a few species dominate (low richness and evenness)
What does high biodiversity mean for an ecosystem?
Biodiversity refers to the variety of life. When biodiversity is high, it means there are many different types of organisms and species. … And every organism plays a unique role and contributes to how coral reef communities survive and function.
What does biodiversity tell you about an ecosystem?
Biodiversity is a measurement of how many different types of organisms are found in an ecosystem. The higher the biodiversity means that the ecosystem can sustain (maintain) many different types of producers, consumers, and decomposers. This generally means that the area is healthy.
What does a high diversity index mean?
Although it’s commonly used to measure biodiversity, it can also be used to gauge diversity differences of populations in schools, communities and other locations. The range is from 0 to 1, where: High scores (close to 1) indicate high diversity. Low scores (close to 0) indicate low diversity.
Why is high biodiversity important to an ecosystem?
Biodiversity is important to humans for many reasons. … Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
Is coral reef ecosystem have high biodiversity?
Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Occupying less than one percent of the ocean floor, coral reefs are home to more than 25% of all marine life.
What are characteristics of ecosystems with high biodiversity?
Ecosystems that have high levels of biodiversity have a large number of species, complex food webs, a variety of ecological niches, increased genetic diversity, and abundant resources.
Why is biodiversity an indicator of a healthy ecosystem?
Biodiversity is an indicator of the health of an ecosystem because the more biodiverse it is, the healthier it will remain. … Biodiversity supports ecological services including, purification of the water and air, pollination, prevention of erosion and the stabilization of CO2 levels.
What are some examples of ecosystems with high biodiversity?
Some examples of ecosystems that are rich in diversity are:
- Large marine ecosystems.
- Marine ecosystems.
- Old-growth forests.
- Coral reefs.
How the biodiversity of an ecosystem relates to the health of that ecosystem?
Biodiversity is the key indicator of the health of an ecosystem. A wide variety of species will cope better with threats than a limited number of them in large populations. Even if certain species are affected by pollution, climate change or human activities, the ecosystem as a whole may adapt and survive.
Does a high diversity index always mean a habitat is healthy?
of a diversity index does not necessarily indicate health condition of the community..
Does a higher value of our diversity index mean the site is more diverse or less diverse?
Simpson’s Diversity Index is a measure of diversity which takes into account the number of species present, as well as the relative abundance of each species. As species richness and evenness increase, so diversity increases.
Simpson’s Diversity Index.
|N = 15 n(n-1) = 64|
What diversity index should I use?
The Shannon diversity index (1949) is the most commonly used. It expresses the relative importance of the number of abundant species in a given environment.
How does high biodiversity help the stability of an ecosystem?
Greater biodiversity in ecosystems, species, and individuals leads to greater stability. For example, species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change.
Why is species diversity good for ecosystems?
Biodiversity boosts ecosystem productivity where each species, no matter how small, has an important role to play. … A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all forms of life.
Why is biodiversity important to an ecosystem quizlet?
Biodiversity is the variety of life in the world or in a particular habitat or ecosystem. Biodiversity is important because it provides us with Natural Resources (Food, Water, Wood, etc.) Natural Services (Pest Control, Air and Water Purification, etc.) and of course, Aesthetic Pleasure.