Question: The island equilibrium model predicts that an island near to other land masses will be able to support ______ species than an island that is far from other land masses because the rate of _________ will be higher due to ___________. A- Fewer; extinction; increased competition B- More; extinction; easier dispersal C- More; immigration; easier dispersal D- Fewer; immigration; reduced competition E- Fewer; immigration; harder dispersal

Question: The island equilibrium model predicts that an island near to other land masses will be able to support __ species than an island that is far from other land masses because the rate of _ will be higher due to _______. A- Fewer; extinction; increased competition B- More; extinction; easier dispersal C- More; immigration; easier dispersal D- Fewer; immigration; reduced competition E- Fewer; immigration; harder dispersal

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter41: Community Ecology

Section: Chapter Questions

Problem 13SA

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CA least tern ENDANGERED ANIMAL is CA least tern questionbases on the bird CA least term Reasons for Endangerment Explain the various factors that have led to this species’ current plight. Expand on these points individually, based on your species’ unique story. Domino Effects As we’ve learned, species are not islands unto themselves; they are integrated with many other organisms in trophic relationships, mutualisms, competition, etc. How is the absence of this species (or its lowered population size) likely to impact the other members of its habitat? (If findings specific to this point are available, please include them – otherwise, I’m asking you to speculate based on what you’ve learned about the biology of this organism.) Conservation Efforts Discuss past, current, and proposed efforts to conserve this species. Are these strategies effective? Are they realistic? What is the outlook for this organism?
How does extirpation differ from extinction? Group of answer choices Extinction and extirpation are the same thing. Extirpation is the loss of a single population, while extinction is the loss of an entire species. Extinction only happens during a mass extinction. Extinction is the loss of a single population, while extirpation is the loss of an entire species.
Another ecologist reported a diversity index value of 1.511 in a different community nearby the one you studied. This community is _ diverse than the one you calculated. Please see the attached image to get a better grasp of the question. How to Calculate Biodiversity and Ecology College Biology 2 Advanced Concepts Background Information In the Shannon index, p is the proportion (n/N) of individuals of one particular species found (n) divided by the total number of individuals found (N), ln is the natural log, Σ is the sum of the calculations, and s is the number of species... Species Evenness Species evenness takes into account the number of species and the relative abundance of species in a community. Several indices have been proposed. Two of the commonly used measures of evenness are the Shannon index (H) and the Simpson index (D). Question 2: What is the Shannon diversity index value for this community? What is the species evenness for this community?
The number of species on an island usually _______ with the size of the island and _______ the distance from the mainland to the island. increases; increases with increases; is unaffected by increases; decreases with decreases; increases with decreases; is unaffected by
Which statments are correct? Question 25 options: Species diversity tends to increase with evapostranspiration Species diversity tends to increase with when parasitism is low Species diversity tends to increase with island area Species diversity tends to be higher when disturbance frequency is low Species diversity tends to increase with decreasing latitude
How is fire ants current range likely to change as a result of climate change? Things that you don't want to miss in your answer to get a high score: Define any terms such as range, niche. Do they prefer or are they limited by weather? What happens to their spread as weather changes The evidence for their limitation by cold weather is in the reading, and you should know that some species, particularly invasives, may spread as the climate warms.
Insect communities were surveyed in either the high or low canopy of a tropical forest. The community data are displayed in the table below. In which habitat was there higher species diversity? Low Canopy_ High Canopy Species Abundance P, P, In P, Species Abundance Pi P, In P 1 45 0.45 -0.36 1 50 0.50 -0.35 35 0.35 -0.37 2 25 0.25 - 0.35 20 0.20 -0.32 3 25 0.25 - 0.35 Total 3 100 1.0 3 100 1.0 O a. cannot be determined with the available data O b. high canopy O c. high and low canopy have the same species diversity O d. low canopy has a higher species richness Oe. low canopy
QUESTION 13 Which is not a benefit of habitat corridors? they facilitate gene flow between populations they isolate invasive species from high quality habitats decrease reproductive isolation for rare species they can increase the rescue effect of populations Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Ecology 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…
Give your response to the following statement: “Eventually, all species become extinct. So it does not reallymatter that the world’s remaining tiger species or atropical forest plant are endangered mostly because ofhuman activities.” Be honest about your reaction, andgive arguments to support your position.
The figure below shows the relative abundance (y axis) of shrubs in an ecosystem in the years following a fire (x axis). The shrubs in this ecosystem fall into two functional groups: fıre recruiters and fıre persisters. FIRE-RECRUITER SYNDROME FIRE-PERSISTER SYNDROME 10 100 Fire LOG YEARS If fire frequency decreased significantly in this ecosystem, which group would be benefited? O Both functional groups would benefit equally O Fire recruiter species O Fire persister species RELATIVE SHRUB SEEDLING ESTABLISHMENT
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