A service ice storm occurs just as the sun is rising on Monday December 1. Small

Question

A service ice storm occurs just as the sun is rising on Monday December 1. Small passerines are unable to peck through the ice for their food. A chickadee that weighs 14 g has 1 g of surplus body fat on Monday at sunrise (8am) and will not be able to feed until the ice melts at 8 am on tuesday. assume that 1) there are 8hrs of daylight (8am to to pm) and 16hrs of darkness (4pm to 8am), 2) the daytime metabolic rate is 2 times BMR (BMR = 140X^.70, X = weight in kg and BMR = kcal/day) and night time metabolic rate is BMR (BMR = 115X^.73, X= weight in kg and BMR = kcal/day) for those respective hours, and 3) surplus body fat is the only source of available energy. Here are the following questions:      Show calculations

A) Will the chickadee survive until Tuesday Morning (i.e will all the surplus body fat be gone)?

B) If it dies when does it die?

C) if it lives how much surplus energy does it have at 8 AM tuesday and how much longer could it survive if the ice did not melt?

I need help with how to do calculations to get these answers           

Explanation / Answer

As per the information provided, I took 1 gm as the available weight for BMR calculation

BMR for daytime = 2 { 140 ( 0.001) ^ 0.70 } = 2.224 Kcal/ 24 hours

For 8 hours ( 8 am to 4 pm ) = 0.7413 kCal-------body will burn

bMR for night = 115 (0.001)^0.73 = 0.7425 kCal / day

for 16 hours = 0.495 Kcal --------body will burn

total fat consumption =  0.7413 kCal+  0.495 Kcal = 1.236 kCal apprx which is equivalent to about 160 gm , while chick has only 1 gm.

b) 1gm is equivalent to 7.716 cal

2224 cal/ 24 hours

(Time chick will survive) = 5 minutes apprx

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