The health of wild bighorn sheep is of concern to wildlife managers. To determin
ID: 3351108 • Letter: T
Question
The health of wild bighorn sheep is of concern to wildlife managers. To determine the health, wildlife managers want to trap and measure the weight, cortisol levels (a stress hormone) and examine the DNA to measure genetic diversity. For each of the following, identify the sampling method used or attempted and what (if any) bias might result.
a. Wildlife managers set up a trap in a location where previously trapped and relocated bighorn sheep were released and drive a herd into the trap and collect measurements on and DNA from each trapped sheep.
b. Of all known locations where bighorn sheep live, randomly select a location and census all sheep within location. Measurements are taken on and DNA collected from each trapped sheep.
Explanation / Answer
Answer:
a. Wildlife managers set up a trap in a location where previously trapped and relocated bighorn sheep were released and drive a herd into the trap and collect measurements on and DNA from each trapped sheep.
b. Of all known locations where bighorn sheep live, randomly select a location and census all sheep within location. Measurements are taken on and DNA collected from each trapped sheep.
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