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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7 - Problem 11se
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 7 - Problem 11se

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The article “Estimating Population Abundance in Plant

ISBN: 9780073401331 38

Solution for problem 11SE Chapter 7

Statistics for Engineers and Scientists | 4th Edition

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Problem 11SE

Problem 11SE

The article “Estimating Population Abundance in Plant Species with Dormant Life-Stages: Fire and the Endangered Plant Grevillea caleve R. Br.” (T. Auld and J. Scott, Ecological Management and Restoration, 2004:125-129) presents estimates of population sizes of a certain rare shrub in areas burnt by fire. The following table presents population counts and areas (in nr) for several patches containing the plant.

 Area Population Area Population Area Population Area Population 3739 3015 2521 707 2259 223 841 1720 5277 1847 213 113 81 15 1500 300 400 17 11958 1392 33 18 228 31 345 142 1200 157 1254 229 228 17 392 40 12000 711 1320 351 10 4 7000 2878 10880 74 1000 92

a. Compute the least-squares line for predicting population (y) from area (x).

b. Plot the residuals versus the fitted values. Does the model seem appropriate?

c. Compute the least-squares line for predicting ln y from ln.x.

d. Plot the residuals versus the fitted values. Does the model seem appropriate?

e. Using the more appropriate model, construct a 95% prediction interval for the population in a patch whose area is 3000 m2.

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CES210:ConservationandEnvironmentalScience ChapterSix: Population CaseStudy:Fishing to Extinction - Populationbiology, thescience of modeling changes in species abundance,is key to understandingthis controversy - Populationbiology allows us to identify overfishing,to modelsustainablecatch rates, and to warn abouthowquickly the species might disappearat current capturerates DYANMICSOF POPULATIONGROWTH - A 500poundfemaleBluefin can lay 30million eggs in a singlespawningseason, butfew ofthose hatchings will makeit to maturity. Ababy tunahas a less than aonein amillion chanceof survival. Ifit does liveto maturity, however,there’s almost nothingin theocean that can catch oreat it – except humans.Ordinarily thehigh fecundity ofadul

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