Environments with fewer species seem to be more vulnerable to invasive species. Which of the reasons below explains this observation? OA. More biodiversity means it is less likely an invasive species will have the lowest R* value OB. More biodiversity means it is less likely an invasive species will have the highest R* value OC. Less biodiversity means more niche complementarity D. More biodiversity means less facilitation

Environments with fewer species seem to be more vulnerable to invasive species. Which of the reasons below explains this observation? OA. More biodiversity means it is less likely an invasive species will have the lowest R* value OB. More biodiversity means it is less likely an invasive species will have the highest R* value OC. Less biodiversity means more niche complementarity D. More biodiversity means less facilitation

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter19: Population And Community Ecology

Section: Chapter Questions

Problem 17RQ: When an invasive species alters the community structure it is introduced to, what can the...

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Competition with other species helps determine an organisms (a) ecotone (b) fundamental niche (c) realized niche (d) limiting resource (e) ecosystem
A limiting resource does all the following except that it (a) tends to restrict the ecological niche of a species (b) is in short supply relative to a species need for it (c) limits the presence of a species in a given community (d) results in an intermediate disturbance (e) may be limiting for only part of an organisms life cycle
When an invasive species alters the community structure it is introduced to, what can the consequence be? a. extinction of economically important species b. reduced predation on some native species c. increased predation on some native species d. all of the above
Which of the following is a cause of the loss of Biodiversity?A. Massive exploitation of species for their commercial valueB. Too much solid waste on the terrestrial landC. Forest and grasslands are protected by the legislationD. Pollution enhances the natural habitatsE. Decreasing appetite for food
for species inasion what are the local negative ecological impacts of two example invasive species
If the slope on a rank abundance curve is m = 0, the species diversity in the community will be? Group of answer choices equal high more information needed low
Which of the following attributes of a community would tend to lead to higher species richness? High specialization of species A broad resource spectrum High population size in each species Both a and b Both b and c
Threats on biodiversity are synergistic. This means
which help stabilize a community? presence of keystone and dominant species high conectivity aming species in community large number of different species in community all tend to do destabilize community all help stabilize community
A keystone species is one whose removal from a community causes extinction of other species. How does this extinction happen?
A keystone species has a(n) ____________________ effect on an ecological community relative to its abundance.
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