Q4.14. To ne right are two graphs showing zero growth isoclines in phase space f

Question

Q4.14. To ne right are two graphs showing zero growth isoclines in phase space for plant species A and B, with insect herbivores absent (top) and present (bottom). Based on your interpretation of these graphs, which of the following is the most likely impact of insect herbivory on the competitive relationship between Species A and B? e Herbivory promotes coexistence of Species A and B. OHerbivory results in competitive exclusion of Species A by Species B Herbivory results in competitive exclusion of Species B by Species A. Herbivory has no effect on competition between Species A and B.

Explanation / Answer

According to graph one the isocline cross one another.

Herbivory promotes coexistence of species A and B.

Both species carrying capacities are lower than the others carrying capacity divided by the competition coefficient.rather than outcompeting one another.

Hence two species are able to coexist at stable equilibrium point..

Coexistence occurs when intraspecific competition is greater then interspecific competition.

According to graph second insects herbivory is present,strong interspecific competitor,while species A is a weak interspecific competitor.

Graph second represent herbivory result species A is competitively excluded by species B.

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