Question
Stage duration (hours) for immatures of 2 species of blow fly when reared at several temperatures; e.g., time to complete the stage. The threshold temperature
Stage duration (hours) for immatures of 2 species of blow fly when reared at several temperatures; e.g., "time to complete" the stage. The threshold temperature for all species is 10C.--------1. What is the average temperature across the dates in question? Round to 2 decimal places.2. Which rearing temperature will you use for the development data?a. 18 b. 21 c. 24 d. 303. What stage(s) of development are you using for your TOC calculations?a. eggb. first instarc. second instard. third instare. prepupaf. pupa4.How many degree days does it take Phormia kensie to reach the stage collected? Round to 2 decimal places. On what date does Phormia kensie reach this amount of accumulated degree days (to reach the stage collected)? How many degree days does it take Phormia kensie to complete the stage collected? Round to 2 decimal places. On what date does Phormia kensie reach this amount of accumulated degree days (to complete the stage collected)? How many degree days does it take Chrysomya xanthium to reach the stage collected? Round to 2 decimal places. On what date does Chrysomya xanthium reach this amount of accumulated degree days (to reach the stage collected)? How many degree days does it take Chrysomya xanthium to complete the stage collected? Round to 2 decimal places. On what date does Chrysomya xanthium reach this amount of accumulated degree days (to complete the stage collected)? Considering only the early third instar Phormia kensie, what is your time of colonization estimation range? Considering only the early third instar Chrysomya xanthium, what is your time of colonization estimation range? Considering both species as early third instars, what is the most conservative (i.e., broadest) time of colonization estimation range? Considering both species as early third instars, what is the most specific (i.e., narrowest) time of colonization estimation you can provide?
Case 2. On 8 August 2016, the remains of a female victim were found along a busy interstate. Entomological evidence was collected at approximately 10:00am, and insects collected were determined to include early 3rd instars of Phormia kensie and Chrysomya xanthium. The victim was last seen alive on 31 July and was reported missing on 3 August after failing to collect her child from a sitter. The daily average temperatures (C) are presented below: 8 August 21 7 August 19 6 August 22 5 August 21 4 August 22 3 August 18 2 August 20 1 August 19 31 July 22 Phormia kensie 1st instar 2nd instar 3rd instar Rearing temp Egg Prepupa Pupa 18C 24 23 15 44 96 180 21C 18 20 12 40 90 168 24C 13 16 10 35 81 160 30C 10 13 9 32 75 152 Chrysomya xanthium 1st 2nd 3rd Rearing temp Egg instar instar instar Prepupa Pupa 18C 30 28 52 64 120 60 21C 26 24 48 60 100 52 24C 22 18 42 55 92 48 30C 18 15 40 48 76 45
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