Habitat fragmentation can lead to: a)The disappearance of the matrix due to decreased habitat heterogeneity b) Changes in patch use by animals, with smaller patches leading increased size of home range or movement for many animals c) Variation in microenvironment near the edge of the patch with negative consequences for diversity

Habitat fragmentation can lead to: a)The disappearance of the matrix due to decreased habitat heterogeneity b) Changes in patch use by animals, with smaller patches leading increased size of home range or movement for many animals c) Variation in microenvironment near the edge of the patch with negative consequences for diversity

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter41: Community Ecology

Section: Chapter Questions

Problem 1SA: The type of place where a species typically lives is called its _______. a. niche c. community b....

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The principle of competitve exclusion states thata) Competition between two species always causes extinction or emigration of one species.b) Two species will stop reproducing until one species leaves the habitat.c) Two species cannot coexist in the same habitat. d) Two species that have exactly the same niche cannot coexist in a community.
BLANK between species with BLANK ecological niches means they are les likely to occur sympatrically A) Competition; similar B) Predation; similar C) Competition; dissimilar D) Predation; dissimilar E) None of the above
Communities are defined by? A). Species whose ranges overlap B). Species that have the same ranges C). physical features of a defined geographic region D). The area occupied by the species with the largest range
Based on the intermediate disturbance hypothesis, a community's species diversity is increased bya) frequent immigrations of new speciesb) moderate levels of disturbancec) intensive disturbance by humansd) stable conditions with no disturbance
Why do moderate levels of disturbance result in an increase in community diversity?a) The resulting uniform habitat supports stability, which in turn supports diversity.b) Less-competitive species evolve strategies to compete with dominant species.c) Habitats are opened up for less competitive speciesd) Competively dominant species infrequently exclude less competitive species after a moderate disturbance.
K-selected species typically a) have short life spans b) display a logistic graph c) are more competitive than r-selected species d) live close to the biotic potential, taking advantage of the environmental conditions
Environments with low frequency and intensity of disturbance tend to have ________ species diversity because ______. Group of answer choices A) low; the best competitors exclude any other species B) high; disturbances kill off a large number of individuals C) low; there are fewer late-successional species than early-successional species D) high; more species can colonize over a longer period of time Question: Answer choice selection is either: Burkina Faso or Italy for all three answer choices
The graph above is from a paper by Dave Tilman published in 1994. Which of the following statements is consistent with the graph? A) The results contradicts the intermediate disturbance hypothesis B) Increasing diversity increases community stability C) The results support the intermediate disturbance hypothesis.
Which of the following species interaction types are positive for one participating species, and negative for the other species. Please select all correct answers. a.) Parasitism b.) Amensalism c.) Commensalism d.) Predation e.) Mutualism
Create a two-part figure showing the effects of forest fragmentation on the community of small mammals relevant to Lyme disease in eastern forests. Figure A should depict the interaction network of a large forestpatch with higher species diversity. Figure B should illustrate how the interaction network and transmission of Borrelia burgdorferi are different in a small forest fragment with low species diversity than they are in largeforest patches with greater diverisity. Eastern forests are diverse communities in which many species interact with one another. Your figure will be asimplified interaction network showing some of the most important species related to the ecology of Lyme disease. Remember that your goal is to illustrate how increasing fragmentation affects forest mammal communities in a way that increases Lyme disease risk.• Choose from the following species for your figure: black-legged tick, white-footed mouse, raccoon, eastern chipmunk, gray squirrel, white-tailed deer,…
Which of the following regarding species interactions is INCORRECT? a) The net effects of a mutualism on each participant is a fixed characteristic of the interaction, and is rarely influenced by external factors. b) Reciprocal parasitism is an accurate way of describing many mutualistic interactions. c) The Lotka-Volterra competition model accounts for the effects of both interspecific and intraspecific competition.
4. Why is Pacific salmon movement into freshwater streams considered migration if the salmon die at the head of the stream and never return to the ocean? A) It is not considered migration but immigration. B) Migration is a one-way movement. C) Because their offspring return to the ocean, the entire population participates in the migratory event via different life stages. D) Most male adult fish survive reproduction and return to the ocean. 5. The distribution of species is rarely determined by minimum and maximum temperature tolerances. TRUE or FALSE.