Modern Weights and Measurements of Jaguars

[Balam]

(05-23-2020, 09:43 PM)Balam Wrote:

MODERN WEIGHT LIST FOR PANTANAL JAGUARS (M)

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Last Update: January, 24, 2021

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A few changes made to the table, at this point we can conclude it is finished baring any new captures or data that may arise in the future.
DJ and I opted for erasing the male killed by the Miranda highway as the source was not strong enough to warrant its placement here. All other values have been verified and as stated before come from official primary or secondary sources.

The sample size of 63 individuals, with an average of around 109 kg, a range of 75-148 (keeping in mind that Joker might be the heaviest one as we don't have his total weight in the absolutes) Is consistent with the claims made by Rafael Hoogesteijn that jaguars from the Pantanal are larger than those from the Llanos, of which he found an average of around 104 kg, with a small difference of 6 kg between those populations using the two different data sets.

In terms of specific areas in the Pantanal, Caiman Ecological Refuge (CER) yielded the highest average using the values provided by Oncafari and Furtado: 112 kg and n:17; in contrast to Porto Jofre in the northern Pantanal, the average was 108.5 n:15. Based on these values I don't believe there is a difference between northern and southern Pantanal jaguars in terms of sizes, areas with a larger quantity of prey may sustain a larger number of jaguars per square km, but as long as the prey is abundant jaguars will show similar values irrespective of the part of the Pantanal they're in. Reply