Which statement best describes how biodiversity supports the sustainability of an ecosystem?

Which statement best describes how biodiversity supports the sustainability of an ecosystem? D. Maintaining diversity ensures that species can continue to depend on one another.

Which ecosystem likely has the highest biodiversity quizlet?

Large ecosystems always have higher biodiversity than smaller ecosystems. A large area of a forest will likely have higher biodiversity than a smaller area of the same forest. A half acre of rainforest would likely have greater biodiversity than a full acre of desert.

What factors tend to promote higher biodiversity in an ecosystem?

Biodiversity within a given ecosystem will be affected by a number of biogeographic factors: Larger habitats tend to promote biodiversity better than smaller habitats (more available niches = less competition) Ecology at the edges of ecosystems is different from central areas (e.g. more sunlight, more wind, etc.)

How can you determine an ecosystem biodiversity?

Biodiversity can be measured at many different levels including genetic, species, community, and ecosystem. One way to measure biodiversity is to assess species richness of an ecosystem, which is the total number of distinct species within a local community.

Which ecosystem most likely has the highest biodiversity?

Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Which ecosystem which most likely have the highest biodiversity?

Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.

What is the best measure of biodiversity?

species richness
The best measure of biodiversity is through species richness. Species richness is where the number of families or species in a given area. If there are a large number of families or species, this means that the area is biodiverse.

What is the best indicator of diversity?

Hi, there is no single ‘best’ measure for species diversity. Each index measures a different component of species diversity. Species richness only counts the number of species, while evenness indices only look at the equality in abundances between species. Shannon and Simpson indices take both into account.

What is the important of biodiversity to 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.

Which of the following is the best example of a keystone species?

Beaver. The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts.

What is a high index of biodiversity?

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)

Which of the following is diversity index?

A diversity index is a quantitative measure that reflects how many different types (such as species) there are in a dataset (a community), and that can simultaneously take into account the phylogenetic relations among the individuals distributed among those types, such as richness, divergence or evenness.

What does Shannon diversity index tell you?

The Shannon diversity index tells you how diverse the species in a given community are. It rises with the number of species and the evenness of their abundance.

Is high or low diversity index better?

Richness is a measure of the number of different kinds of organisms present in a particular area. For example, species richness is the number of different species present. However, diversity depends not only on richness, but also on evenness.
Species Number (n) n(n-1)
Total (N) 15 64

What is Simpson’s index of diversity?

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.

Why is Simpson’s Diversity Index Important?

Simpson’s Diversity Index is used to calculate a measure of diversity, taking into account the number of something as well as its abundance.

Why is high index of diversity is more advantageous than low index of diversity?

High biodiversity is advantageous over low biodiversity because ecosystems with high biodiversity are better able to remain at homeostasis and be

Is Shannon index better than Simpson index?

As for accounting diversity in any number of sites, Shannon-Weiner Index has been considered to be a better index as compared to Simpson’s index. In fact Simpson index is considered more as a dominance index as it accounts proportion of species in a sample.

How is Shannon index calculated?

Take the natural logarithm of each proportion (lnp) and then multiply the proportion and the ln of the proportion (p*lnp). Add these values together, take the negative value of it (to make it positive) and you will have your Shannon Weiner index score (H’).

What is the advantage of high biodiversity in economics?

Biodiversity Underpins Economic Activity

Agriculture, forestry and fisheries products, stable natural hydrological cycles, fertile soils, a balanced climate and numerous other vital ecosystem services depend upon the conservation of biological diversity.

Which ecosystem has high biodiversity low biodiversity?

Estuarine areas (where rivers meet seas and oceans) have high biodiversity compared to other areas. Trophical rainforests are rich in terms of biodiversity. Arid and semiarid areas have low biodiversity. Deserts, for example, contain limited numbers of species.