Lecture 13

Question 1

what is the ADH?

Answer 1

measure of thermal energy (heat over time) that insects need to develop from one stage to another

Question 2

Methods for ADH

Answer 2

A:
ADH = (time to reach given stage) * (Temperature)

B:
ADH = (time to reach given life stage) * (Temperature - development threshold temperature)

Question 3

which method underestimates ADH?

Answer 3

method a

Question 4

What are some limitations when using extrapolation methods to estimate insect development?

Answer 4

Development–temperature relationship varies by life stage
🔹 Growth curve shape differs between stages

Humidity

Larval density

Food availability

Presence of drugs

Temperature fluctuations

Question 5

What are two recommended methods for extrapolating insect development times in forensic cases?

Answer 5

1- Use developmental data from conditions close to the case

2- Run experiments replicating the crime scene conditions