Organism

 Weight in Pounds

 Weight in Grams

Calories for Equivalent Tame Animal 

 Estimated KCalories
Needed per Day

 KCalories per Year on Tundra

 Ground Area Needed

 Yield in Calories
For Predator
   

 Tundra Plants
                 

Lemming
summer

 1-2 oz
 30-57  25  x 6=150          

 Lemming
winter

 2-4 oz
 57-112  50  x6=300          
 Arctic Fox

 6
 2,700  240  x6=          
 Arctic Fox

 8
 3,629  350            

 Arctic Fox

10 
 4,536  400  x6=2400          

 Snowy Owl
fe/male

 2
 907  80            

 Snowy Owl
fe/male

 3
 1,105.6  120            

 Snowy Owl
female

 4
 1,814  160            

40 calories per pound   2 pounds to 25 pounds           15 calories at 100 lbs

 Animal

 Weight in Pounds

 Weight in Grams/Kilograms

 KCalories needed per Day

 KCalories per day in Lab
 mouse  .7 - 1.4 oz  20 - 40 g  15  
 hamster  3.5 oz  100 g  45  
 guineau pig    1000 - 1200  105  
 rabbit    4,500  2.46  270
         

 

 

 

biomass -- the mass of fixed carbon