BODY SIZE AND MASS OF NGORONGORO CRATER LIONS

[tigerluver]

This is the document on the females:
https://www.cbs.umn.edu/sites/default/fi...Crater.pdf

The equation used to estimate the masses (mass = 1.8*girth-78.2). So whether or not the equation produced adjusted masses depends on what database was used to produce the regression. More often than not, weights are not adjusted. The figure I posted on the "edge" thread does not use adjusted weights (if people would like I can post the excel document with the datapoints there). Adjusted weights aren't too useful at the time either as the vast majority of data is not adjusted, thus best comparisons are done without adjusting the new sample. By reversing the 1993 equation, the Serengeti girth is 101.4 cm and Crater girth 112.3 cm. So dimensionally Crater females are larger. Using the regression figure I posted gives a weight of 129 kg for Serengeti and 154 kg for the Crater. Albeit, the r-sq value is not that good for chest girths (a fit of 0.66 leaves a ways for variability from the prediction and chestier specimens are overestimated by the formula), so using these estimates as basis for comparison with actual weights of other samples would be wrong. In other words, regression should only be relied on for species can no longer be accessed (paleontology). 

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