Modern Weights and Measurements of Wild Lions

[Charger01]

Chest circumference of Ngorongoro Crater Lions - Part 2

A simple regression done by me, on lions measured in Dr. Bertram et al. 1975a has cleared almost everything. 

Following were the results - 
   

The equation I got was: y = 3.6117x - 261.56 (where y = weight of the lion in kg and x = chest circumference of the lion in cm)

Now, if you put y = 212 kg (as was obtained in the 1991 research paper), we get x = 131.1 cm

Mean chest circumference of lions from Ngorongoro crater at 131.1 cm (weight = 212 kg) falls right in the range of 127 - 134 cm as told by Dr. Packer years ago. BINGO!

Other lions we have are - 5 large lions: 134.5 cm, 135 cm, 136 cm, 137 cm and 143 cm; one smaller lion: 120 cm and the 6 young adult lions with mean chest circumference = 127.79 cm (using the same equation; weight = 200 kg). 

We get total mean chest circumference for crater lions (>4 yrs of age) as 131.05 cm (n = 18) and a range of 120 - 143 cm.

Hope this clears up the confusions we were having while implementing other equations. 

Let me know what you think! Reply