Question 7. One difficulty in estimating species richness is that many species have yet to be described. Suppose that the number of undiscovered species varies among taxa and that old clades tend to have more undiscovered species. In which direction would the observed relationship between species diversity and clade age be biased?
Question 7. One difficulty in estimating species richness is that many species have yet to be described. Suppose that the number of undiscovered species varies among taxa and that old clades tend to have more undiscovered species. In which direction would the observed relationship between species diversity and clade age be biased?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
![Gymnospermae
100
200
Amphibia
050 100 150 200
Aranea
50 100
50 100 150 200
150
50 100 150 200 250
50 100 150 200 250
Clade age (my)
Clade age (my)
Clade age (my)
Clade age (my)
Figure 3. The relationship between species richness and clade age in twelve groups.
Question 7. One difficulty in estimating species richness is that many species have
yet to be described. Suppose that the number of undiscovered species varies among
taxa and that old clades tend to have more undiscovered species. In which direction
would the observed relationship between species diversity and clade age be biased?
Log (richness)
Log (richness)
Log (richness)
0
Angiospermae
0
100
Actinopterygii
●
●
0
0
100
200
●
400
Squamata
●
200 300
2
0
4
2
0.
0
0
300
6
4
2-
0
0
Pteridophyta
200
0
100
Mammalia
● me com
150
0
25
Coleoptera
0
50
300
75
0
0
2
0
0
0
0
100
Aves
Chondricthyes
200
300
0000
50 75 100
25
Diptera](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa6bf7b35-cfa2-4b2e-97b8-118c07c2ada5%2F93126ccc-e242-4679-bc61-6e4bbc782446%2Fxt4g24_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Gymnospermae
100
200
Amphibia
050 100 150 200
Aranea
50 100
50 100 150 200
150
50 100 150 200 250
50 100 150 200 250
Clade age (my)
Clade age (my)
Clade age (my)
Clade age (my)
Figure 3. The relationship between species richness and clade age in twelve groups.
Question 7. One difficulty in estimating species richness is that many species have
yet to be described. Suppose that the number of undiscovered species varies among
taxa and that old clades tend to have more undiscovered species. In which direction
would the observed relationship between species diversity and clade age be biased?
Log (richness)
Log (richness)
Log (richness)
0
Angiospermae
0
100
Actinopterygii
●
●
0
0
100
200
●
400
Squamata
●
200 300
2
0
4
2
0.
0
0
300
6
4
2-
0
0
Pteridophyta
200
0
100
Mammalia
● me com
150
0
25
Coleoptera
0
50
300
75
0
0
2
0
0
0
0
100
Aves
Chondricthyes
200
300
0000
50 75 100
25
Diptera
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