Crab spiders hiding on flowers. Crab spiders use camou- flage to hide on flowers while lying in wait to prey on other insects. Ecologists theorize that this natural camouflage also enables the spiders to hide from their own preda- tors, such as birds and lizards. Researchers at the French Museum of Natural History conducted a field test of this theory and published the results in Behavioral Ecology (Jan. 2005). They collected a sample of 10 adult female crab spiders, each sitting on the yellow central part of a daisy. The chromatic contrast between each spider and the flower it was sitting on was measured numerically
Crab spiders hiding on flowers. Crab spiders use camou- flage to hide on flowers while lying in wait to prey on other insects. Ecologists theorize that this natural camouflage also enables the spiders to hide from their own preda- tors, such as birds and lizards. Researchers at the French Museum of Natural History conducted a field test of this theory and published the results in Behavioral Ecology (Jan. 2005). They collected a sample of 10 adult female crab spiders, each sitting on the yellow central part of a daisy. The chromatic contrast between each spider and the flower it was sitting on was measured numerically
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
I need help making a stem and leaf display with the following data.
![Crab spiders hiding on flowers. Crab spiders use camou-
flage to hide on flowers while lying in wait to prey on other
insects. Ecologists theorize that this natural camouflage
also enables the spiders to hide from their own preda-
tors, such as birds and lizards. Researchers at the French
Museum of Natural History conducted a field test of this
theory and published the results in Behavioral Ecology
(Jan. 2005). They collected a sample of 10 adult female
crab spiders, each sitting on the yellow central part of a
daisy. The chromatic contrast between each spider and
the flower it was sitting on was measured numerically](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff8a86740-781a-4204-bc63-549b5147664d%2Fd7113500-e0a0-4a7d-bd92-205d83560a37%2F3j0vydr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Crab spiders hiding on flowers. Crab spiders use camou-
flage to hide on flowers while lying in wait to prey on other
insects. Ecologists theorize that this natural camouflage
also enables the spiders to hide from their own preda-
tors, such as birds and lizards. Researchers at the French
Museum of Natural History conducted a field test of this
theory and published the results in Behavioral Ecology
(Jan. 2005). They collected a sample of 10 adult female
crab spiders, each sitting on the yellow central part of a
daisy. The chromatic contrast between each spider and
the flower it was sitting on was measured numerically
![with a spectroradiometer, on which higher values indicate
a greater contrast (and, presumably, easier detection by
predators). The data for the 10 crab spiders are shown in
the following table.
57 75 116 37 96 61 56 2 43 32
Based on Thery, M., et al. "Specific color sensitivities of prey and predator
explain camouflage in different visual systems." Behavioral Ecology,
Vol. 16, No. 1, Jan. 2005 (Table 1).
a. Summarize the chromatic contrast measurements for
the 10 spiders with a stem-and-leaf display.
b. For birds, the detection threshold is 70. (A contrast of
70 or greater allows the bird to see the spider.) Locate the
spiders that can be seen by bird predators by circling their
respective contrast values on the stem-and-leaf display.
c. Use the result of part b to make an inference about the
likelihood of a bird detecting a crab spider sitting on the
yellow central part of a daisy.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff8a86740-781a-4204-bc63-549b5147664d%2Fd7113500-e0a0-4a7d-bd92-205d83560a37%2Fafcb2em_processed.jpeg&w=3840&q=75)
Transcribed Image Text:with a spectroradiometer, on which higher values indicate
a greater contrast (and, presumably, easier detection by
predators). The data for the 10 crab spiders are shown in
the following table.
57 75 116 37 96 61 56 2 43 32
Based on Thery, M., et al. "Specific color sensitivities of prey and predator
explain camouflage in different visual systems." Behavioral Ecology,
Vol. 16, No. 1, Jan. 2005 (Table 1).
a. Summarize the chromatic contrast measurements for
the 10 spiders with a stem-and-leaf display.
b. For birds, the detection threshold is 70. (A contrast of
70 or greater allows the bird to see the spider.) Locate the
spiders that can be seen by bird predators by circling their
respective contrast values on the stem-and-leaf display.
c. Use the result of part b to make an inference about the
likelihood of a bird detecting a crab spider sitting on the
yellow central part of a daisy.
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