Choose the Correct Option from Intermediate Disturbance Hypothesis Flashcards

1) Communities can be linked by which of the following? I. predation II. systematics III. competition A) I only B) III only C) I and II only D) I and III only E) I, II, and III

2) Which of the following statements is consistent with the competitive exclusion principle? A) Bird species generally do not compete for nesting sites. B) The density of one competing species will have a positive impact on the population growth of the other competing species. C) Two species with the same fundamental niche will exclude other competing species. D) Even a slight reproductive advantage will eventually lead to the elimination of inferior species. E) Evolution tends to increase competition between related species.

3) The presence of all of the following tend to increase species diversity except A) competitive exclusion. B) keystone predators. C) patchy environments. D) moderate disturbances. E) migration of populations.

4) According to the competitive exclusion principle, two species cannot continue to occupy the same A) habitat. B) niche. C) territory. D) range. E) biome.

5) The entire box shown in Figure 53.1 represents the niche of species A. Species A is biologically constrained from the striped area of its niche by species B. This is an example of A) dynamic stability. B) facilitation. C) commensalism. D) competitive exclusion. E) secondary succession.

6) The sum total of an organism's interaction with the biotic and abiotic resources of its environment is called its A) habitat. B) logistic growth. C) biotic potential. D) microclimax. E) ecological niche.

7) Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation? A) competitive exclusion B) predation of Chthamalus by Balanus C) cooperative displacement D) primary succession E) mutualism

8) A species of fish is found to require a certain water temperature, a particular oxygen content of the water, a particular depth, and a rocky substrate on the bottom to thrive. These requirements are part of its A) dimensional profile. 8) A species of fish is found to require a certain water temperature, a particular oxygen content of the water, a particular depth, and a rocky substrate on the bottom to thrive. These requirements are part of its A) dimensional profile. B) ecological niche. C) prime habitat. D) resource partition. E) home base. C) prime habitat. D) resource partition. E) home base.

9) All of the following describe possible results of competition between two species except A) competitive exclusion. B) aposematic coloration. C) resource partitioning. D) reduction in the population of one species. E) reduction in the populations of both species.

10) Resource partitioning is best described by which of the following statements? A) Competitive exclusion results in the success of the superior species. B) Slight variations in niche allow similar species to coexist. C) Two species can coevolve and share the same niche. D) Species diversity is maintained by switching between prey species. E) A climax community is reached when no new niches are available.

11) As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each species seeks prey at dawn in areas without the other species. Where their ranges overlap, however, the two-spot avenger beetle hunts at night and the three-spot hunts in the morning. When you bring them into the laboratory, their offspring behave in the same manner. You have discovered an example of A) mutualism. B) character displacement. C) Batesian mimicry. D) facultative commensalism. E) none of the above

12) Resource partitioning would be most likely to occur between A) sympatric populations of a predator and its prey. B) sympatric populations of species with similar ecological niches. C) sympatric populations of a flowering plant and its specialized insect pollinator. D) allopatric populations of the same animal species. E) allopatric populations of species with similar ecological niches.

13) An insect that has evolved to resemble a plant twig will probably be able to avoid A) parasitism. B) symbiosis. C) predation. D) competition. E) commensalism.

14) Which of the following is an example of cryptic coloration? A) bands on a coral snake B) brown color of tree bark C) markings of a viceroy butterfly D) colors of an insect-pollinated flower E) a "walking stick" insect that resembles a twig

15) Batesian mimicry systems involve all of the following except A) the models being noxious or disagreeable. B) the mimics having no defense mechanism. C) the ability of predators to "learn" characteristics of their prey. D) the models being cryptically colored. E) the models being easily recognized.