FW662 -- Population Dynamics 162FW662 — Final Exam 1997 March 21, 1997Based on the attached article by F. A. Johnson, et al., 1997, J. Wildl. Manage. 61:202-216,answer the following questions. These questions are general, and probably have no “right”answer. Rather, the intent of the questions is for you to demonstrate to me a throughunderstanding of the issue, and provide reasonable support for your answer.A. (20 pts) If harvest is assumed to be zero, does the population model described in thisarticle result in logistic population growth? Explain your answer.B. (20 pts) Do the additive and compensatory mortality models in equations (7) and (8)seem reasonable? Explain your answer. Hint: Graph the additive and compensatorymortality functions as a function of harvest rate. Why is the term in equation (8)?"sC. (10 pts) Is there any demographic stochasticity in the population model? If so, what isit?D. (10 pts) Is there any temporal stochasticity in the population model? If so, what is it?E. (10 pts) Do you see any major problems with not including individual heterogeneity andgenetic variation in the population model? Explain your answer.F. (10 pts) Explain why the value of 2.2 is included in equation (11).G. (10 pts) Why is stochastic dynamic programing used in this problem? Explain youranswer.H. (10 pts) Does waterfowl management as described in this article meet the intent ofadaptive management as described by Carl Walters? Explain your answer.FW662 -- Population Dynamics 163-0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Annual Survival0 0.2 0.4 0.6 0.8 1 Harvest RateMales AdditiveMales CompensatoryFemales AdditiveFemales CompensatorySurvival RatesFW662 — Final Exam Answers 1997Name:Question AnswerA 20 pts Yes Young/Adult = 0.8249 - 0.0547X10-6 Adults = linear function = logisticNo Random variation included in model — not a strict linear functionB 20 ptsC 10 pts YesNo NoneD 10 pts Yes Ponds are random variable and affect Young/Adult (At) Young/Adult = 0.8249 - 0.0547X10-6 Adults + 0.1130X10-6 PondsNoE 10 pts Yes hunting exerts selection which may lead to changes in survivalNoF 10 pts 1.2 males/female means 1 female1.2 % 1 ducks'12.2G 10 pts To provide a tool to make decisions on harvest levels in the face of uncertaintyfrom environment (ponds), harvest levels from season structure, and the biologicalmechanisms.FW662 -- Population Dynamics 164H 10 pts Yes Monitoring provides feedback to learn about system, harvest levelsmanipulate systemNoOther