Question
Populations that are r-strategists
Answer: Option D
:
D
Populations that are r-strategists have a high growth rate or r value. Therefore in ashort period of time thesepopulations produce many offsprings, which require little care. Therefore, these populations usually have a survivorship curve similar to type-III. They alsotend to have J-shaped growth curves because they are rarely regulated by density dependent factors. Their population crashes whensome environmental change causes them to die,usually within a short time.Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.
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:
D
Populations that are r-strategists have a high growth rate or r value. Therefore in ashort period of time thesepopulations produce many offsprings, which require little care. Therefore, these populations usually have a survivorship curve similar to type-III. They alsotend to have J-shaped growth curves because they are rarely regulated by density dependent factors. Their population crashes whensome environmental change causes them to die,usually within a short time.Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.
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