Concept explainers
To write:
A scenario where a small island may or may not have a huge number of species.
Introduction:
In
Edward O. Wilson and Robert MacArthur proposed ‘The Equilibrium Model of Island Biogeography’ in 1960. It is a comprehensive model that explains uneven distribution on the new island.
According to Edward O. Wilson and Robert MacArthur, the number of species present on an island reflects the balance between the rates of immigration and extinction. The model predicts that island size is directly proportional to the number of species. The number of species increases with an increase in island size. The number of species decreases with decrease in the distance from the source pool.
Want to see the full answer?
Check out a sample textbook solutionChapter 44 Solutions
Principles of Biology
- Describe a hypothetical three community with high species richness but low species evennessarrow_forwardDo you think generalist or specialized species would be better able to adapt and avoid extinction if the environment changed rapidly, for example, as a result of forced climate change? Why?arrow_forwardDo you think that environmental changes are always bad for a species or do you think such changes can actually help certain species?arrow_forward
- What would be the best way to make non- biologists aware of the ecological and economic costs of global warming as it affects coral reefs and jelly populations?arrow_forwardWhat do you mean lay species diversity? Name two measures of species diversity?arrow_forwardHow does protecting the biodiversity of an area increases the survival of a species’ population? Use the principles of threats to biodiversity (e.g. overexploitation, habitat loss, invasive species, etc.), species dominance or evenness, and genetics of the species (e.g. inbreeding, mutations, founder effect bottlenecks, etc.). Use a Philippine endemic species as an example in your answer.arrow_forward
- In your region, what species are threatened with extinction? Why are they vulnerable? Suggest steps that could be taken to increase their populations.arrow_forwardPlease explain why you decided to pick an answer choice. Explain your reasoning/rational/logic for choosing the answer choice. Question: Which of the following hypothetical islands would likely have the greatest species richness? Group of answer choices A) Not enough information given B) a large island far from the mainland C) a large island near to the mainlandarrow_forwardWould you classify these species as weak, moderate, or strong competitors? Think about population density.arrow_forward
- In what ways do you think species matter and it is important to protect species from extinction, or keep them flourishing? Is there something about species or biodiversity that makes it inherently to-be-valued?arrow_forwardBetween Tenerife and La Gomera, which island would be expected to have a greater number of species? In your discussion of why, focus on the primary difference between the islands (size or distance from the mainland) A) Tenerife B) La Gomera and whyarrow_forwardDo you expect that natural selection acting within a species would increase the population size of the species? Do you expect that it would increase the rate at which new species arise, thus increasing the number of species?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