Components of species diversity: species richness and relative abundance. Species diversity is determined not only by the number of species within a biological community—i.e., species richness—but also by the relative abundance of individuals in that community.
What 2 factors is species diversity based on?
Explanation: Species richness and relative abundance are the two factors that are considered when measuring species diversity. Species richness refers to the number of species in an area. Species abundance refers to the number of individuals per species.
What factors determine ecosystem diversity?
Broadly speaking, the diversity of an ecosystem is dependent on the physical characteristics of the environment, the diversity of species present, and the interactions that the species have with each other and with the environment.
What are two most important factors contributing to the diversity of species?
It is a function of both the number of different species in the community (species richness) and their relative abundances (species evenness). Larger numbers of species and more even abundances of species lead to higher species diversity.
What are the components of species diversity?
Name the Three Main Components of Species Diversity. Answer: The three main components of species diversity are Genetic diversity, Ecological diversity, and species diversity. 2.
What two components contribute to species diversity explain how two communities with the same number of species can differ in species diversity?
Explain how two communities that contain the same number of species can differ in species diversity. species richness, the number of species in the community and relative abundance, the proportions of the community represented by the various species, both contribute to species diversity.
What 3 factors affect the biodiversity of an ecosystem?
What Factors Influence the Biodiversity of an Ecosystem?
- Overexploitation. Overexploitation means harvesting species more rapidly than populations can replenish themselves or to do so at unsustainable levels. …
- Habitat Loss. …
- Invasive Species. …
- Climate Change.
What are the main factors in ecosystem diversity quizlet?
The four major components of biological diversity are: Functional Diversity (biological or chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems), Ecological Diversity (the variety of terrestrial and aquatic ecosystems found in an area or on the …
What two factors determine the diversity of species on an island?
Thus, the biodiversity found on an island is a function of (1) how close the island is to the mainland, and (2) how large the island is. As you might imagine, larger islands tend to have more species than smaller islands because there is greater habitat diversity and, therefore, more resources available.
What are the two factors that determine the number of species on the island?
Terms in this set (29) The number of species found on an island is determined by a balance between two factors: the immigration rate (of species new to the island) from other inhabited areas and the extinction rate (of species established on the island).
Why is species diversity important in an ecosystem?
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.