2. A biologist collects the following data for three populations of an insectivo

Question

2. A biologist collects the following data for three populations of an insectivorous lizard species along the elevational gradient: Remember that lizards can Elevation low intermediate high thermoregulate during the day but not at night. Now, thinking about the Average summer air temperature 31.5 30.3 different ways in which temperature Average summer deep crevice 31 27 influences an ectotherm's 24 23.5 temperature (where lizards spend the night) INT: use the slide with the b as a guide to thinking about Relative insect abundance 3.4 3.5 this), and the way both energy accrual and expenditure interact to determine total discretionary en Feeding strikes/hr (bugs captured) 1.8 curves), answer the following questions: A. Which population has the highest discretionary energy? Why? B. Which population has the lowest discretionary energy? Why? C. How might these differences be reflected in life history phenotypes, specifically body size, egg size and clutch size?

Explanation / Answer

A) Relative insect abundance

B) Average summer air temperature

C) It affects in a maximum way as environmental condition is an important issue

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