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Modern Weights and Measurements of Jaguars

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Modern Weights and Measurements of Jaguars

Canada Balam Offline
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#356
09-17-2020, 06:32 PM

I'm gonna share another one of the many emails I've been exchanging with Hoogesteijn on here as o believe he touches on a couple of important points to keep in mind when discussing things like weight averages


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"The weights of the jaguars simply express the genetic potential and growth for them in good feeding conditions. What has been seen in the state park Encontro das Aguas and the ranches of Sao Beto (in association with research and conservation from Panthera) and Jofre Velho (of Panthera Brazil), with the lack of total hunting since at least 15 years and subsequent high prey abundance, the jaguars express that potential (average weight of 115 kg, he has seen and revised the table made on here), which varies among individuals, but shows that the population is strong and healthy."

He then reiterates the importance of preserving the population in a long-term basis, especially now with the issues concerning the fires.

So what Rafael is confirming on here is what some of us had been saying for a while, the mass of not only jaguars but all animals will directly decrease if the genetic material and food abundance drop. This is why the weights from the 1970's showcase much different values and cannot be taken as infallible or relevant in comparison to today's conditions. Something similar has been witnessed with the decrease in size of Siberian tigers, the reduction of suitable prey populations and the low genetic material has been the contributor for their lesser current weights compared to centuries ago.

This is why I don't think that we should focus too much and hopefully we can move on from the weight average obsession. Weight averages are volatile and bound to change with the individuals included in the sample and the conditions of said individuals. Our focus, in my opinion, should be on promoting ways to foster the conservation of these animals in a long-term basis as Rafael alluded. There's never going to be a weight average set in stone for any species of animals, individuals will vary in size and composition.
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RE: Modern Weights and Measurements of Jaguars - Balam - 09-17-2020, 06:32 PM



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