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A class of 40 set out to determine the population of lizards in a bound field measuring 200 metres by 100 metres using the capture-recapture method.
In their first outing, the students captured a total of 360 lizards all of which were marked with indelible ink and then released back into the field.
After a one week interval the students went back into the field and caught a total of 250 lizards out of which 150 bore the indelible ink mark.
The population density of the lizards in the field is?
a
0.003 per m 2
b
0.03 per m 2
c
3 per m 2
d
4 per m 2
e
6 per m 2
Explanation
Correct Option
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sulaimanharuna
4 years ago
No. Of lizards in the first day A1=360
No. Of lizards in the second day A2=250
No. Of lizards in the previous day that are found in the sample=150
.: population in area=A1×A2/A3
360×250/150 =600
Again, population density=population size/area of habitat
=600/200 by 100
=0.03 per m²
