BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 58, Problem 3TY
Which evidence suggests that more diverse communities are more stable than less diverse communities?
- a. Agricultural land, with fewer species, undergoes less frequent pest outbreaks than natural prairies containing more species.
- b. In Australia, introduced rabbits frequently assume pest proportions. In Europe, coevolved predators such as foxes prevent rabbit populations from reaching pest proportions.
- c. Long-term studies of American grasslands show fields with high numbers of plant species vary less in biomass from year to year.
- d. Both a and b are correct.
- e. Both b and c are correct.
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Which statement about zero population growth isoclines of two competing species is true?
A.
Species coexistence requires that the two isoclines cross.
B.
The crossing of the two isoclines is a sufficient condition for species coexistence.
C.
If the species coexist, they will each do so at a higher density than either would if placed alone.
D.
Strongly competing species can only coexist if the two species have very different carrying capacities.
E.
Coexistence will occur if the two isoclines are parallel.
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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"?
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B. Decreasing air pollution in the least developed countries would decrease species survival rate
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D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival rates
Chapter 58 Solutions
BIOLOGY
Ch. 58.1 - Prob. 1CCCh. 58.3 - Prob. 1CCCh. 58.3 - Inhibition implies that competition exists between...Ch. 58.4 - Prob. 1CSCh. 58.4 - Prob. 1CCCh. 58.4 - Prob. 1EQCh. 58.4 - Prob. 2EQCh. 58.4 - CoreSKILL What did the researchers conclude about...Ch. 58.5 - Core Skill: Connections In the two food chains...Ch. 58.5 - Prob. 1CC
Ch. 58.5 - Prob. 2CSCh. 58 - Prob. 1TYCh. 58 - Prob. 2TYCh. 58 - Which evidence suggests that more diverse...Ch. 58 - The process of primary succession occurs a. around...Ch. 58 - Prob. 5TYCh. 58 - Prob. 6TYCh. 58 - Prob. 7TYCh. 58 - Prob. 8TYCh. 58 - Prob. 9TYCh. 58 - Prob. 10TYCh. 58 - Prob. 1CQCh. 58 - Prob. 2CQCh. 58 - Core Concept: Systems In the nutrient-poor...Ch. 58 - List some possible ecological disturbances, their...Ch. 58 - Prob. 2COQ
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