CAMPBELL BIOLOGY W/MASTERINGBIO CODE >
CAMPBELL BIOLOGY W/MASTERINGBIO CODE >
16th Edition
ISBN: 9781323573457
Author: Campbell
Publisher: PEARSON C
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Textbook Question
Chapter 54, Problem 54.1CR

Interspecific interactions affect the survival and reproduction of the species that engage in them. As shown in the table, these interactions can he grouped into three broad categories: competition, exploitation, and positive interactions.

Chapter 54, Problem 54.1CR, Interspecific interactions affect the survival and reproduction of the species that engage in them.

Competitive exclusion states that two species competing for the same resource cannot coexist permanently in the same place. Resource partitioning is the differentiation of ecological niches that enables species to coexist in a community.

For each interaction listed in the table, give an example of a pair of species that exhibit the interaction.

Expert Solution & Answer
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Summary Introduction

To provide: Examples of species involved in different types of interspecific interactions.

Concept introduction: Interspecific interactions refer to the relationship that exists between members of different species of a biological community. It includes commensalism, parasitism, herbivory, predation, competition, and others. These interactions can have either positive or negative impact on the survival of species engaged in the interaction.

Given data: Refer to the table in the concept 54.1 “ Community interactions are classified by whether they help, harm, or have no effect on the species involved”, in the textbook.

Explanation of Solution

The interspecific interactions can be classified into three categories, namely, positive interactions, competition and exploitation.

The positive interaction is a type of interaction in which one species are benefitted and the other may or may not get benefits but is never harmed.

The competition is a type of engagement where both the species are affected (harmed) as they share a common resource (short in supply).

In exploitation, one species get benefit while the other is affected negatively (harmed).

The positive interactions include mutualism and commensalism. On the contrary, exploitation involves predation, parasitism and herbivory.

Interactions along with its examples are tabulated as follows:

Type of interactions Examples
Competition Lynx and foxes of Alaska (compete for snowshoe hares)
Exploitation
Predation Lion (predator) and antelope (prey)
Herbivory Rice grasshopper (herbivore) and rice plant (act as food)
Parasitism Plasmodium(parasite) and human (host)
Positive interactions
Mutualism Acacia and ant (both benefit each other)
Commensalism Cattle egrets (get a benefit)and African buffalo (not harmed)

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Chapter 54 Solutions

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