BIOLOGY:DYNAMIC SCIENCE-ACCESS >CUSTOM<
4th Edition
ISBN: 9781337254175
Author: Russell
Publisher: CENGAGE C
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Chapter 53, Problem 9TYK
Summary Introduction
Introduction:
The islands are small lands, which are situated in isolation from the mainland. The species inhabiting the island keeps on fluctuating to maintain equilibrium. The species inhabiting the island is influenced by the species present on the nearby mainland or islands. The equilibrium theory of island biogeography explains the pattern of the presence of species on an island.
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The equilibrium model of island biogeography predicts
A) large islands, nearer a source of colonists, will support the fewest number of species.
B) small islands, farther from a source of colonists, will support the fewest number of species.
C) small islands, nearer a source of colonists, will support the fewest number of species.
D) large islands, farther from a source of colonists, will support the greatest number of species.
E) both large islands, farther from a source of colonists, will support the greatest number of species and small islands, farther from a source of colonists, will support the fewest number of species.
Literal habitat islands surrounded by water are quite obvious, but how might the theory of island biogeography apply to terrestrial systems? Can you think of examples of land ‘islands’ where this same theory could apply?
Imagine that you were trying to set up some protected areas to save alpine meadow communities. What may determine the number of species maintained in each meadow in light of what you know about island biogeography? Would you expect the species compsotion to change in your meadows parks over time and why?
This relates to the equillibrium theory of island biogeography.
Chapter 53 Solutions
BIOLOGY:DYNAMIC SCIENCE-ACCESS >CUSTOM<
Ch. 53.1 - How might natural selection favor a carnivore that...Ch. 53.1 - Prob. 2SBCh. 53.1 - How can field experiments demonstrate conclusively...Ch. 53.2 - Prob. 1SBCh. 53.2 - Prob. 2SBCh. 53.3 - Prob. 1SBCh. 53.3 - Prob. 2SBCh. 53.3 - Prob. 3SBCh. 53.4 - Prob. 1SBCh. 53.4 - Prob. 2SB
Ch. 53.5 - Prob. 1SBCh. 53.5 - Prob. 2SBCh. 53.6 - Prob. 1SBCh. 53.6 - How does a climax community differ from early...Ch. 53.6 - Prob. 3SBCh. 53.7 - Prob. 1SBCh. 53.7 - Prob. 2SBCh. 53 - Prob. 1TYKCh. 53 - The use of the same limiting resource by two...Ch. 53 - Prob. 3TYKCh. 53 - Prob. 4TYKCh. 53 - A keystone species: a. is usually a primary...Ch. 53 - Prob. 6TYKCh. 53 - The change in the species composition of a...Ch. 53 - Prob. 8TYKCh. 53 - Prob. 9TYKCh. 53 - Prob. 10TYKCh. 53 - The table below shows how many individuals were...Ch. 53 - Prob. 12TYKCh. 53 - Prob. 13TYKCh. 53 - Prob. 14TYKCh. 53 - Prob. 1ITD
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- A recent United Nations analysis report gathered data on declines in biodiversity across the world. Using the graphs provided, which statement shows an area of concern and is an alternative to the general hypothesis "Humans are responsible for a significant increase in the extinction rate among species in the world today as a result of damage caused to the environment"? A. Fertilizer use in developing countries should be encouraged to decrease the extinction rate B. Decreasing air pollution in the least developed countries would decrease species survival rate C. Protection of key biodiversity areas should be a priority for developed countries to lower the extinction rate D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival ratesarrow_forwardA large tropical island is found near the mainland. Based on the predictions of the MacArthur and Wilson equilibrium model of island biogeography this island will have… a. low immigration rates and low extinction rates b. high immigration rates and high extinction rates c. low immigration rates and high extinction rates d. high immigration rates and low extinction ratesarrow_forwardWhich of the following is an example of the founder effect? a.) Northern elephant seals were hunted to near extinction, but populations later rebounded. b.) None of the answers are correct c.) A plant seed established a new population after hitching a ride on a migratory bird d.) All of the answers are correct e.) A late frost killed 95% of a local population of spring ephemeral plantsarrow_forward
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- The number of species on an island usually depends on the size of the island and its distance from a mainland. This statement would most likely be made by _______. a. an explorer c. a geologist b. a biogeographer d. a philosopherarrow_forwardWhy are species that live at the tops of mountains at increased risk of extinction due to climate change? a. The colder temperatures at the tops of mountains gradually increase, and the species at the tops of the mountains are displaced by species at lower elevations moving up. b. The species at the tops of the mountains are adapted to moving up and down the mountains and species at lower elevations are displacing them as they move down the mountains. c. The species at the tops of the mountains are adapted to lower oxygen and climate change increases oxygen content in the air. d. Species at the tops of mountains do not have the genetic diversity for adaptation that lower-elevational species do. Therefore species at the tops of the mountains are more likely to go extinct.arrow_forwardThe study of how habitat-type distribution across a landscape is known as: A. Landscape Ecology B. Evolutionary Ethology C. Population Biology D. Conservation Biologyarrow_forward
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