a. In the Smokies, Hairston discovered the removal of an average of 18 P. jordani within altitudinal overlap zones resulted in an average increase in the density of P. glutinosus by 3.5 individuals. Based upon these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Smokies? b. In the Balsams, Hairston discovered the removal of an average of 18 P. jordani within altitudinal overlap zones resulted in an average increase in the density of P. glutinosus by 2.6 individuals. Based upon these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Balsams? c. In the Smokies, Hairston discovered the removal of an average of 1.9 P. glutinosus within altitudinal overlap zones resulted in an average increase in the density of P. jordani by 4.3 individuals. Based upon these data, how many P. jordani individuals are equivalent to 1 P. glutinosus in the Smokies?
a. In the Smokies, Hairston discovered the removal of an average of 18 P. jordani within altitudinal overlap zones resulted in an average increase in the density of P. glutinosus by 3.5 individuals. Based upon these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Smokies? b. In the Balsams, Hairston discovered the removal of an average of 18 P. jordani within altitudinal overlap zones resulted in an average increase in the density of P. glutinosus by 2.6 individuals. Based upon these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Balsams? c. In the Smokies, Hairston discovered the removal of an average of 1.9 P. glutinosus within altitudinal overlap zones resulted in an average increase in the density of P. jordani by 4.3 individuals. Based upon these data, how many P. jordani individuals are equivalent to 1 P. glutinosus in the Smokies?
Chapter4: Management Practices For Finfish
Section: Chapter Questions
Problem 27SA
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R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.
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![Hairston (1980) studied competition between two salamanders (Plethodon jordani & P. glutinosus) in
the eastern US. These two species exhibit different degrees of altitudinal overlap in different mountain ranges.
Hairston performed a series of removal experiments in 24 m diameter plots in each mountain range. Based upon
the results of many years of study, Hairston estimated the carrying capacities of each species (per plot) in each
mountain range. His data are shown below.
Mountain Range
Species
P. jordani
P. glutinosus
Smokies
45
12
Balsams
47
11
a. In the Smokies, Hairston discovered the removal of an average of 18 P. jordani within altitudinal
overlap zones resulted in an average increase in the density of P. glutinosus by 3.5 individuals. Based upon
these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Smokies?
b. In the Balsams, Hairston discovered the removal of an average of 18 P. jordani within altitudinal
overlap zones resulted in an average increase in the density of P. glutinosus by 2.6 individuals. Based upon
these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Balsams?
c. In the Smokies, Hairston discovered the removal of an average of 1.9 P. glutinosus within altitudinal
overlap zones resulted in an average increase in the density of P. jordani by 4.3 individuals. Based upon these
data, how many P. jordani individuals are equivalent to 1 P. glutinosus in the Smokies?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c34bc0d-e963-4864-9934-ae36527d08bc%2F6ad08a7b-74fb-48f5-9f94-27a03bd03a84%2F4rhx47l_processed.png&w=3840&q=75)
Transcribed Image Text:Hairston (1980) studied competition between two salamanders (Plethodon jordani & P. glutinosus) in
the eastern US. These two species exhibit different degrees of altitudinal overlap in different mountain ranges.
Hairston performed a series of removal experiments in 24 m diameter plots in each mountain range. Based upon
the results of many years of study, Hairston estimated the carrying capacities of each species (per plot) in each
mountain range. His data are shown below.
Mountain Range
Species
P. jordani
P. glutinosus
Smokies
45
12
Balsams
47
11
a. In the Smokies, Hairston discovered the removal of an average of 18 P. jordani within altitudinal
overlap zones resulted in an average increase in the density of P. glutinosus by 3.5 individuals. Based upon
these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Smokies?
b. In the Balsams, Hairston discovered the removal of an average of 18 P. jordani within altitudinal
overlap zones resulted in an average increase in the density of P. glutinosus by 2.6 individuals. Based upon
these data, how many P. glutinosus individuals are equivalent to 1 P. jordani in the Balsams?
c. In the Smokies, Hairston discovered the removal of an average of 1.9 P. glutinosus within altitudinal
overlap zones resulted in an average increase in the density of P. jordani by 4.3 individuals. Based upon these
data, how many P. jordani individuals are equivalent to 1 P. glutinosus in the Smokies?
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