Recent content by killbot2000

Hi all, So I'm looking at how far an animal can move based on its basal metabolic rate and cost of movement. The total cost of these two is 45 Watts. It has 1.5 kg of food reserves with an energy density of 5.2 x 10^6 J per kg = 7800000 J of energetic reserves. All I want to do is see how...

I'd like some help working out the probability of my model animal finding water in a day. In my 'model' there is a square landscape 17km^2 The water pool is a circle of 500m radius (so approx 0.7854km^2) So in a one off shot the chances of hitting the water is 0.7854/17 = 0.0462 right...

No idea where I was going wrong but thanks for that.

Homework Statement It has been estimated that a total weight of 4x10^7 kg of ungulates die in the Serengeti each year (Houston, 1979). We assume that these have an mass-specific energy content of 7x10^6J kg^-1 (Peters, 1983), and that the Serengeti stretches over 25,000 km^2 (Sinclair and...

Homework Statement I asked a similar question before relating to an animal's foraging radius. I think there was a typo but I'd like to show another example to see if I'm on the right track. The parameter values are as follows: Q= 5.2 × 106 J C = 1.5kg d= 0.055kg per hour k= 2.0...

Hi all, I think I solved the problem for those interested. It seems to have been a typo on the part of the author. Of the original values Ema should read 42 not 24.

r = eV/12(Ema + 0.5Emc) + 2kV Hi, My approach was as follows 7.8 x 10^6 x 12/[12(24+42) + 2 x 2 x 12] That gives 111428.571429

Unfortunately I can't link directly because it's a hard copy. Perhaps I can give you another example where I seem to have worked out the answer correctly. r = [e - T(Ema+Emc/2)]/2k e = 7.8*10^6 Joules k= 2.0 Joules/m Ema = 24 Watts Emc = 42 Watts T = 48 hours [ 7.8*10^6 - 172800...

Hi, the way I've written is the way it's given in the journal. Perhaps a typo on their part?

This is given in an academic journal so I'm not sure where I've gone wrong, I've taken the values as they are presented.

Hi all, I have the following problem which should show me the distance an animal can travel Homework Statement e = 7.8*10^6 Joules V= 12m/s k= 2.0 Joules/m Ema = 24 Watts Emc = 42 Watts The answer should be 116km Homework Equations r = eV/12(Ema + 0.5Emc) + 2kV The Attempt...