1 Consider The Following Two Statements A Common Birds Are More Likely To Be Seen In Both Of Two Observation Periods 1 (52.81 KiB) Viewed 26 times
1 Consider The Following Two Statements A Common Birds Are More Likely To Be Seen In Both Of Two Observation Periods 2 (52.81 KiB) Viewed 26 times
1) Consider the following two statements: a) "Common birds are more likely to be seen in both of two observation periods one week apart than uncommon birds." b) "Resident birds are more likely to be seen in both of two observation periods one week apart than migrating birds." Which of these two statements is more likely to be correct? Explain why you think so. 2) In a short paragraph, describe how we observed the birds and determined whether or not they were common or uncommon, and residents or migrators. 3) a) State the proportion of common birds that were in both observations, then state the proportion of uncommon birds that were in both observation periods. Are the proportions consistent with statement la above? b) Now state the proportion of resident birds that were in both observations, as well as the proportion of migrating birds that were present in both observations. . Are the proportions consistent with statement 1b above? 4) Was your prediction from question 1 correct? -If so, explain in biological terms why it was so, but also suggest another explanation for the pattern you saw. -If not, explain in biological terms what might account for the discrepancy.
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