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Jaguars of Northern South America

Balam Offline
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#1

This thread will cover the populations found in the forests and basins of South America north of the Amazon basin (excluding the Llanos), most predominantly the Magdalena Medio region of Colombia, the Maracaibo Lake basin of Venezuela, the Darien intersection between Colombia and Panama, the Venezuelan tepuys etc.

Jaguars in the Magdalena Medio Valley of Colombia
These jaguars are renowned for being buffalo killers:


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*This image is copyright of its original author

*This image is copyright of its original author

*This image is copyright of its original author
By Jhon Mario

Jaguars from the Maracaibo Lake Basin, Venezuela. 
These Jaguars are tracked by the Sebraba Project, the most important jaguar conservationist organization in Venezuela:

Female


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Male


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*This image is copyright of its original author


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Jaguar from the Darien Gap in the Pacific rainforests in northern Colombia
Bordering Panama, stretching to Ecuador and Peru.


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*This image is copyright of its original author

*This image is copyright of its original author

By Juan Delgado
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Acinonyx sp. Offline
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#2
( This post was last modified: 04-07-2021, 05:03 AM by Acinonyx sp. )

@Balam 

Interesting post.Excellent finds
Is there any evidence for these jaguars being renowned buffalo killers?
Thank you.
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Balam Offline
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( This post was last modified: 04-07-2021, 05:53 AM by Balam )

(04-07-2021, 05:03 AM)Acinonyx sp. Wrote: @Balam 

Interesting post.Excellent finds
Is there any evidence for these jaguars being renowned buffalo killers?
Thank you.

Quite a lot actually, I'm going to copy parts of a post I made last year talking about it:

"The Panthera team focused its study of anti-depredatory measures in the region of Middle Magdalena in Colombia (the same region where the alleged 136+kg cattle killer jaguar was from, and the confirmed 110 kg). This particular region is extremely important for jaguars because it signifies a major crossroads between populations from North and South America, it's a key area for the preservation of the genetic diversity of the species. Jaguars are considered umbrella species as their presence usually signifies a healthy biome and ecosystem where other endangered and key species such as the manatees benefit from. The team of Panthera showed three jaguars, one male and two different females from the area caught through camera tracking:


*This image is copyright of its original author


The team later worked with a multitude of ranches in the surrounding provinces to instill anti-depredatory measures to decrease the rate of predation by big cats on livestock. 55 ranches in total were part of the experiment.

Among the consumption and attack patterns, horses were identified as the species that survived the most predatory attacks although sometimes enduring bad wounds. Cougars were found to attack and target horses at a higher rate than jaguars.

The most interesting part might be that buffalo was among the most attacked and killed livestock by jaguars. In one specific ranch, jaguars killed 17 buffaloes. The attacks on them were classical of jaguar predation, with skull-crushing and consumption from the ribcage and down:


*This image is copyright of its original author


*This image is copyright of its original author

To stop these attacks, not only on buffaloes but cattle too, the Panthera team supplied ranchers with electric fences that were powered by solar panels. The fences were positioned in a way that a big cat couldn't pass under them but that smaller species such as turtles would have no problem moving through. The results were the following:


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Buffaloes being caged in electric fence


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[i]Rates of predation before and after fences were put into place.[/i]
As can be seen, by the chart above, predation was dramatically reduced by the implementation of fences. The few attacks on Buffaloes and cattle reported were due to misuse of the fences by the ranchers (they weren't activating the electricity in the fences)."

Then there are these news reports, also from the same region:

"According to the article, several buffalos have been found dead due to jaguar predation in different ranches. They registered 11 buffalo, one horse, and four goat kills.
"Sin embargo, el jaguar sí es reconocido por su predilección por los búfalos, camuros, picures, tinajos y otras especies." (however, jaguars are known for their preference for buffalo, goat, agouti, pacas, and other species)
Source"


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"En una finca de cría de búfalos a orillas del departamento de Santander se encontraron tres cadáveres de búfalas adultas. Los propietarios y empleados de esta explotación ubicada en jurisdicción del municipio de Puerto Parra, quedaron estupefactos ante el hallazgo de los cuerpos parcialmente depredados." [b](At a buffalo ranch in the borders of the Santander provice were found three carcasses of adult buffalo cows. The owner and employees of this ranch located in the town of Puerto Parra were amazed at the finding of the bodies partially eaten)[/b]
[b]Source"[/b]
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Balam Offline
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Magdalena Medio, Colombia

Male captured by Panthera at the o2 Reserve in the department of Antioquia

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Balam Offline
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Massive male from the Maracaibo lake


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By proyectosebrabavzla
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Balam Offline
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( This post was last modified: 05-04-2021, 08:02 AM by Balam )

Maracaibo Lake, Venezuela

Totubi is a female tracked by Proyecto Sebraba, she highlights the importance of increasing the protection of this vulnerable jaguar population as the lack of proper corridors has made these jaguars susceptible to inbreeding which has reduced their genetic fortitude leading to things like infertility. Totubi was seen mating with multiple males and was thought to be infertile until late 2020 when she was finally seen with a cub.

Mating with Akaritde large male:


*This image is copyright of its original author

Mating with Atya, they were mating in 2013 and in that same year it believed that he was poached by a nearby ranch


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Mating with Kiutu


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After trying for a while she was finally seen with a cub, the footage says 2013 but the news of the cub was shared in 2020 so the date may be off here:


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By Proyecto Sebraba
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Balam Offline
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Aburra Valley, Magdalena Medio, Colombia

Big male


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