Concept explainers
Introduction:
A group of populations of animals and plants lives within the specific geographical area under the same environmental conditions. For example, soil containing bacteria, forest of trees, etc. A community has a wide variety of uses.
Answer to Problem 1TY
The correct answer is option (d) low species richness and high abundance.
Explanation of Solution
Explanation/justification for the correct answer:
Option (d) low species richness and high abundance. High abundance species are more likely to have offspring. Later, these offspring are more likely to inhabit a new area of the ecosystem, then a less abundant species. So, this is the correct option.
Explanation for incorrect answer:
Option (a) low abundance and high species richness.If there are low number of species, then species richnes cannot be high. So, this is an incorrect option.
Option (b) high stability. If the species in a geographical area is high in stability then no interaction would occur between more species or individuals. It also decreases the plant biomass. So, this is an incorrect option.
Option (e) high species diversity. High species diversity does not provide stability in the ecosystem. In spite of decades of research, the question of making system balance is largely unanswered. It decreases plant biomass. So, this is an incorrect option.
Option (f) high abundance and high species richness. High abundance and high species richness lead to an increase in the high competition which may cause the extinction of species or individuals. So, this is an incorrect option.
In low species richness, different species also exhibit because of high abundance. in low species richness, there would be an interaction between different species. Hence, the correct answer is option (d) low species richness and high abundance.
Want to see more full solutions like this?
Chapter 44 Solutions
Principles of Biology
- which help stabilize a community? presence of keystone and dominant species high conectivity aming species in community large number of different species in community all tend to do destabilize community all help stabilize communityarrow_forwardHigh diversity is equated with communitylecosystem stability because: It helps buffer environmental stresses on a community/ecosystem It provides a variety of nutrient source It sustains complex ecological interactions None is correctarrow_forwardThe "principle of tolerance limits".. relates species abundance and distribution to the physiological tolerance of the organism. defines the realized niche of an organism. can explain why more tolerant species face reduced risks of extinction. states that a species' tolerance to competition will limit the dispersion of individuals within a population.arrow_forward
- Yes or No: If a species is a good intraspecific competitor, is it necessarily a good interspecific competitor? O Yes! Species that are good intraspecific competitors are always also good interspecific competitors. Competition is competition. Species are either good at it or not good at it. O No! A species that is a good intraspecific competitor could be a poor interspecific competitor or a good interspecific competitor. Intra- and interspecific competiton are two different things.arrow_forwardSpecies within a community interact with each other in a variety of ways. Match each scenario with the type of species interaction it describes. Competition Commensalism Consumption Mutualism grass and clover both using the mice eating seeds lizards catching insects for food limited nutrients in the same patch of soil from sunflowers Answer Bank orchids growing harmlessly on branches of trees bees receiving nectar in exchange for pollinating flowers doves and cardinals eating seeds from the same limited number of plantsarrow_forwardWildlife Refuges in the United States: Group of answer choices have their largest total land area in Florida. are much less effective for preserving species than zoos or botanic gardens place a ban on oil and gas exploration in their boundaries. preserve habitat and are thus one of the best approaches to conserving wildlifearrow_forward
- Which of the following is true about a community's species diversity? If a community has species richness, it automatically means it also has species diversity. A community can only have either species richness or species diversity, but not both A community can have either species richness or species diversity, or both. None of the abovearrow_forwardThe two barnacle species that compete for space to attach to cliffs in the rocky intertidal zone are experiencing: Interspecific exploitation competition. Interspecific interference competition. Intraspecific exploitation competition. Intraspecific interference competition.arrow_forwardThe four key attributes of community structure are total number of species top-down and bottom-up effects trophic cascades the sum of interactions among all species physical attributes of a community, including biotic and abiotic factors primary producers species relative abundancearrow_forward
- Which of the following communities would be most resilient to the removal of 1 species? a community where the top predators have many food sources, but the primary consumers do not a community where the primary consumers have many food sources, but the top predators do not a community where each organism is the only food source of another organism a community where every organism has multiple food sourcesarrow_forwardThe competitive exclusion principle is best defined as Multiple Choice the competition among individuals of the same species in the same location. the principle that two species that occupy the same niche cannot coexist indefinitely. an interaction between species that enhances the fitness of the exploiting individual while reducing the fitness of the exploited individual. the principle that if an organism allocates energy to one function, such as growth or reproduction, it reduces the amount of energy available to other functions.arrow_forwardEcology and Biology: Shannon Diversity Index: Definition & Example The Shannon Diversity Index (sometimes called the Shannon-Wiener Index) is a way to measure the diversity of species in a community. Denoted as H, this index is calculated as: H = -Σpi * ln(pi) where: Σ: A Greek symbol that means “sum” ln: Natural log pi: The proportion of the entire community made up of species i The higher the value of H, the higher the diversity of species in a particular community. The lower the value of H, the lower the diversity. A value of H = 0 indicates a community that only has one species. The Shannon Equitability Index is a way to measure the evenness of species in a community. The term “evenness” simply refers to how similar the abundances of different species are in the community. Denoted as EH, this index is calculated as: EH = H / ln(S) where: H: The Shannon Diversity Index S: The total number of unique species What is the Shannon diversity index value for this community? What…arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education