There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
10-12-2018, 01:21 PM( This post was last modified: 10-12-2018, 01:22 PM by brotherbear )
According to Peter, and he has been seeking the truth of Amur tiger and Amur brown bear relations for many years now, there is a strong animosity between tiger and bear similar to that between lion and hyena. So, my question would be why would these two mighty beasts hate each other? My thoughts are here. The Amur brown bear spends the first four or five years of his life in total terror of the powerful and savage big cat. In some cases, he may have witnessed a sibling killed and eaten by the apex predator.
As for the tiger, here is a big brown brute ranging from 500 pounds ( 227 kg ) to 1000 pounds ( 453 kg ) that scavenges his kills and is a danger to a tigress and cubs. An intruder who is just in the way and, unlike the wolf or the leopard, one he would prefer not to tangle with. A problem neighbor who devours his hard-earned kills and causes him the need to hunt more often.
A male jaguar called El Jefe ("The Boss") has been in the news a lot lately. He's the only known wild representative of his kind in the United States, and his turf – the Santa Rita Mountains of southeastern Arizona – is being considered for a hugely contentious open-pit copper mine.
El Jefe, the only known wild jaguar in the United States, wandering the Santa Rita Mountains. Image: Conservation CATalyst
While shadowing El Jefe in the Santa Rita backcountry, biologist Chris Bugbee discovered the strewn bones of a black bear, including a crushed, tooth-punctured skull (photographer Bill Hatcher was able to capture several snapshots of the remains). Assisting with the El Jefe-tracking task was Bugbee's dog Mayke, a Belgian Malinois specially trained to sniff out jaguar and ocelot poop.
Back at the lab, analysis later confirmed that jaguar scat collected at the scene contained bear hairs. According to Bugbee's colleague (and wife) Aletris Neils, with whom he runs the nonprofit Conservation CATalyst, the bear skeleton likely belonged to a young adult sow.
The unusual find, Bugbee suggests, marks the first known instance of a jaguar preying on a black bear. Such an event could only occur in the American Southwest or northern Mexico, where the stomping grounds of the mainly temperate black bear and the mainly tropical/subtropical jaguar overlap. "It was north against south, and south won," Neils tells Smithsonian.
As El Jefe's bear lunch suggests, jaguars are opportunistic hunters. They often actively prowl in search of prey, then attempt to stalk and kill any they encounter. More comfortable getting their paws wet than most felines, they'll also cruise riverbanks and wetland fringes questing for huge capybaras, as well as caimans, which can make up nearly 50 percent of jaguar diets in water-logged habitats. And as this footage plainly shows, the bigs cats are not afraid to pounce on full-sized caimans in their watery element, showing some mind-boggling strength hauling the reptiles ashore.
That same muscle power and ease in the water come in handy when hunting supersized rodents – just watch this Brazilian jaguar in full submarine mode as it wrestles a capybara from the depths.
In the Smithsonian article, Bugbee speculates El Jefe could have taken down the black bear by ambushing the unsuspecting animal as it foraged. The bear's mangled skull fits a distinctive pattern of jaguar kills: the big cats commonly dispatch capybaras by puncturing their braincase, a feat that requires precise fang placement and massive crushing power. (Jaguars have proportionately the strongest bite of any big cat, which also serves them well when munching turtles.)
Interestingly, some evidence suggests that spectacled bears, the only South American representatives of the bear family, avoid jaguars where the two share habitat.
More than a hundred species have been recorded as jaguar fodder across the cats' range, although recent research suggests they especially favour capybara, caiman, collared peccaries (or javelina), nine-banded armadillos, wild pigs, white-nosed coatis and giant anteaters (though as we saw just last month, giant anteaters aren't pushovers when it comes to jaguars). The study, nicely summarised here, speculated that jaguars might have escaped the great megafaunal extinctions at the end of the last ice age in the Americas by adapting to smaller prey, and consequently diminishing in size themselves.
Jaguars only rarely tackle adult South American tapirs, the biggest terrestrial mammals in the Neotropics, although a beefy male named Aratiri in the Argentine Atlantic Forest is an accomplished tapir-hunter.
Aratirí, seen here with a tapir carcass, is one of the largest jaguars known to inhabit the Atlantic Forest, which spans parts of Brazil, Paraguay and Argentina. Image: Emilio White/Proyecto Yaguarte
El Jefe's bear lunch sheds a little light on the "phantom ecology" of jaguars in the American Southwest, which were mostly shot and poisoned out by the mid-twentieth century. Since the cats weren't well studied before effectively disappearing, we don't know much about their food preferences.
The predators once flourished alongside grizzlies and Mexican wolves in the isolated mountain ranges of Arizona and New Mexico, along the Mogollon Rim, and occasionally beyond: as far north as the South Rim of the Grand Canyon, and eastward into South Texas thornscrub (and maybe even the swampy Texas-Louisiana border). Today, the nearest population of breeding jaguars to the US border exists in eastern Sonora.
El Jefe, who first came on biologists' radar in 2011, is only the latest of a string of male jaguars – known to be impressive wanderers – to reclaim southern Arizona territory over the past couple of decades. (His most famous predecessor was Macho B, a longtime resident of the state's Tumacacori Highlands until he was controversially euthanised in 2009.)
To encourage more of the great spotted cats to repopulate borderland habitat, conservationists hope to establish protected corridors between the Sonoran jaguar population (which finds refuge in the remote Northern Jaguar Reserve) and the US line – but obstacles such as the proposed copper mine, not to mention Donald Trump's visions of "an impenetrable and beautiful wall", threaten to stand in the jaguars' way.
Two things to consider here. Black bears of the American West are smaller than Eastern bears. Also, the age and sex of bears killed is not given. Also, there is no data found of jaguars and Andean bears even living in same locations.
A male jaguar called El Jefe ("The Boss") has been in the news a lot lately. He's the only known wild representative of his kind in the United States, and his turf – the Santa Rita Mountains of southeastern Arizona – is being considered for a hugely contentious open-pit copper mine.
El Jefe, the only known wild jaguar in the United States, wandering the Santa Rita Mountains. Image: Conservation CATalyst
While shadowing El Jefe in the Santa Rita backcountry, biologist Chris Bugbee discovered the strewn bones of a black bear, including a crushed, tooth-punctured skull (photographer Bill Hatcher was able to capture several snapshots of the remains). Assisting with the El Jefe-tracking task was Bugbee's dog Mayke, a Belgian Malinois specially trained to sniff out jaguar and ocelot poop.
Back at the lab, analysis later confirmed that jaguar scat collected at the scene contained bear hairs. According to Bugbee's colleague (and wife) Aletris Neils, with whom he runs the nonprofit Conservation CATalyst, the bear skeleton likely belonged to a young adult sow.
The unusual find, Bugbee suggests, marks the first known instance of a jaguar preying on a black bear. Such an event could only occur in the American Southwest or northern Mexico, where the stomping grounds of the mainly temperate black bear and the mainly tropical/subtropical jaguar overlap. "It was north against south, and south won," Neils tells Smithsonian.
As El Jefe's bear lunch suggests, jaguars are opportunistic hunters. They often actively prowl in search of prey, then attempt to stalk and kill any they encounter. More comfortable getting their paws wet than most felines, they'll also cruise riverbanks and wetland fringes questing for huge capybaras, as well as caimans, which can make up nearly 50 percent of jaguar diets in water-logged habitats. And as this footage plainly shows, the bigs cats are not afraid to pounce on full-sized caimans in their watery element, showing some mind-boggling strength hauling the reptiles ashore.
That same muscle power and ease in the water come in handy when hunting supersized rodents – just watch this Brazilian jaguar in full submarine mode as it wrestles a capybara from the depths.
In the Smithsonian article, Bugbee speculates El Jefe could have taken down the black bear by ambushing the unsuspecting animal as it foraged. The bear's mangled skull fits a distinctive pattern of jaguar kills: the big cats commonly dispatch capybaras by puncturing their braincase, a feat that requires precise fang placement and massive crushing power. (Jaguars have proportionately the strongest bite of any big cat, which also serves them well when munching turtles.)
Interestingly, some evidence suggests that spectacled bears, the only South American representatives of the bear family, avoid jaguars where the two share habitat.
More than a hundred species have been recorded as jaguar fodder across the cats' range, although recent research suggests they especially favour capybara, caiman, collared peccaries (or javelina), nine-banded armadillos, wild pigs, white-nosed coatis and giant anteaters (though as we saw just last month, giant anteaters aren't pushovers when it comes to jaguars). The study, nicely summarised here, speculated that jaguars might have escaped the great megafaunal extinctions at the end of the last ice age in the Americas by adapting to smaller prey, and consequently diminishing in size themselves.
Jaguars only rarely tackle adult South American tapirs, the biggest terrestrial mammals in the Neotropics, although a beefy male named Aratiri in the Argentine Atlantic Forest is an accomplished tapir-hunter.
Aratirí, seen here with a tapir carcass, is one of the largest jaguars known to inhabit the Atlantic Forest, which spans parts of Brazil, Paraguay and Argentina. Image: Emilio White/Proyecto Yaguarte
El Jefe's bear lunch sheds a little light on the "phantom ecology" of jaguars in the American Southwest, which were mostly shot and poisoned out by the mid-twentieth century. Since the cats weren't well studied before effectively disappearing, we don't know much about their food preferences.
The predators once flourished alongside grizzlies and Mexican wolves in the isolated mountain ranges of Arizona and New Mexico, along the Mogollon Rim, and occasionally beyond: as far north as the South Rim of the Grand Canyon, and eastward into South Texas thornscrub (and maybe even the swampy Texas-Louisiana border). Today, the nearest population of breeding jaguars to the US border exists in eastern Sonora.
El Jefe, who first came on biologists' radar in 2011, is only the latest of a string of male jaguars – known to be impressive wanderers – to reclaim southern Arizona territory over the past couple of decades. (His most famous predecessor was Macho B, a longtime resident of the state's Tumacacori Highlands until he was controversially euthanised in 2009.)
To encourage more of the great spotted cats to repopulate borderland habitat, conservationists hope to establish protected corridors between the Sonoran jaguar population (which finds refuge in the remote Northern Jaguar Reserve) and the US line – but obstacles such as the proposed copper mine, not to mention Donald Trump's visions of "an impenetrable and beautiful wall", threaten to stand in the jaguars' way.
Two things to consider here. Black bears of the American West are smaller than Eastern bears. Also, the age and sex of bears killed is not given. Also, there is no data found of jaguars and Andean bears even living in same locations.
I have been trying to find information of interaction of Jaguars and Andean Bears with out luck, for sure they interact but sadly we don't have any information of their interaction.
10-20-2018, 08:31 PM( This post was last modified: 10-20-2018, 08:35 PM by parvez )
Hey! Tigers! Leave my cubs alone! Mama sloth bear fights off tigers in Ranthambore National Park – Watch video Buzz
Updated Oct 18, 2018 | 21:52 IST | Times Now Digital
The badly injured mother sloth bear fights bravely to chase off tigers who wanted to harm her cubs. The incident was reported from Rajasthan’s Ranthambore National Park.
*This image is copyright of its original author
Ranthambhore wildlife sanctuary is known for its Bengal tigers. | Photo Credit: YouTube
New Delhi: Mothers have gone to very great lengths to protect their offspring. An incredible footage has emerged from Rajasthan’s Ranthambore National Park were an angry mother sloth bear is trying to ward off two huge tigers to protect her cubs. The sloth bear was trying to pass through bushes with two cubs on her back when a female and male tiger blocked her approach. Sensing danger, the mother instead of backing off decided to take on the big cats.
The violent face-off was captured in Ranthambhore National Park and in the video, the mama bear can be seen fighting a pitched battle against the apex predators, Daily Mail reported. Also known as an alpha predator or top predator, tigers rank at the top of a food chain, with no natural predators.
The bear stands on its rear leg to frighten the tigers and manages to scare away the male tiger. However, the female tigress is adamant and decides to challenge the mother sloth bear. In a deadly fight both the animals can be seen fighting each other and the adult tigress manages to pin the bear to the ground but soon she has the upper hand and is seen charging at the tigress.
At the end of the video, the tigress can be seen retreating after being chased away by the sloth bear.
Ranthambhore is the fortieth largest national park in northern India and was established as the Sawai Madhopur Game Sanctuary in 1955 by the Central government. Later, it was declared as Project Tiger reserves in 1973.
Ranthambhore wildlife sanctuary is known for its Bengal tigers and they can be easily spotted even in the daytime. The best time for tiger sighting at the national park is from November to May.
Animals too have sense. The male tiger sensed it was the ferociousness of the mother and backed off while the female tiger tried to have the offspring prey though she realized later about the instincts of mother and backed of. I saw the video of cougar protecting her offspring she fended off grizzly bear. I think this is a similar incident.
10-20-2018, 11:04 PM( This post was last modified: 10-20-2018, 11:05 PM by brotherbear )
First posted by Sarus at - shaggygod.proboards.com/
Does the jaguar limit the presence of the Andean bear in the Amazon rainforest?
It was previously noted that the Andean bear seemed to avoid the jaguar, since its altitudinal ranges in Peru and Bolivia did not overlap on the slope of a single mountain (Peyton 1999). However, in this study it was determined that in the same areas
where the Andean bear was recorded in the PNYC-RCY and the RCA, a high
activity of the jaguar, presenting a greater relative abundance than the bear. Moreover
in the PNYC, in a tree of Ormosia sp. (Fabaceae) were found marks
left by an Andean bear and a big cat, the later very likely a
jaguar.
This suggests that the presence of the jaguar would not influence the displacement of the Andean bear to and in the BTA, at least in the directly evaluated areas.
Source: PRESENCIA DEL OSO ANDINO TREMARCTOS ORNATUS (CARNIVORA: URSIDAE) EN EL BOSQUE TROPICAL AMAZÓNICO DEL PERÚ
The spectacled bear is generally solitary, although it has occasionally been seen feeding in small groups. Mating may occur at various times of year, and the female usually gives birth to 1 to 3 cubs between December and February, after a gestation period of 5.5 to 8.5 months. The cubs may stay with the female for up to a year. Predators of spectacled bear cubs include pumas (Puma concolor), jaguars (Panthera onca), and adult male bears (6) (9) (10). The spectacled bear may live for up to 39 years in captivity.
10-20-2018, 11:08 PM( This post was last modified: 10-20-2018, 11:09 PM by brotherbear )
... shaggygod.proboards.com/
There are additional relating points to communicate. IIRC, on a South American nature reserve, one female spectacled bear was found dead. A cougar was suspected in her death. In another event, as explained from a foreign documentary on spectacled bears (either in Portuguese or Spanish) the larger male spectacled bear was filmed displacing the smaller cougar from its kill. Keep in mind, although the spectacled bear's diet is largely plant based; animal matter is also a part of their diet. In some areas, some spectacled bears become conflict animals as they will prey on farmer livestock including cows.
10-20-2018, 11:10 PM( This post was last modified: 10-20-2018, 11:11 PM by brotherbear )
shaggygod.proboards.com/
Bear Rehab & Release
"Bear release is the ultimate aim of the rescue program of our conservation project.
Rescued bears need rehabilitation to learn what to eat in the wild before they can be
liberated, also to grow big enough to avoid attacks by puma".
"The Andean bear rehabilitation process takes anywhere from 6 to 18 months,
depending on the age and size of the rescued cub. Bears must be large enough to not
be attacked by puma or other predators before they can be released".
Sloth bears are comparatively stalked and killed by tigers rather often. A tiger is an ambush predator and has no desire to go face-to-face with a sloth bear. This bear can be highly aggressive when needed and uses his long claws to attack the face of his adversary. I have never heard of a sloth bear ever killing a tiger. I believe that if the tiger was determined enough and these two fought to the death, the tiger would be the victor in the end. But, the risk of serious injury is too high a price for the prize.
11-07-2018, 06:34 PM( This post was last modified: 11-07-2018, 06:39 PM by epaiva )
Valuable information sent by Ms. Olga Krasnykh owner of Bohai Tour agency, they provide ecological and animals watching tours in Primorsky Krai - the far Eastern region of Russia.
Could you please tell Ms. Olga Krasnykh that her info is much appreciated by all interested in tigers and bears? Could you post a copy in the tiger thread, as it is often visited by those interested tigers and bears in Russia? Many thanks for the initiative and effort. I'll add an extra star today.
11-07-2018, 07:13 PM( This post was last modified: 11-07-2018, 07:15 PM by Shadow )
(11-07-2018, 06:34 PM)epaiva Wrote: Valuable information sent by Ms. Olga Krasnykh owner of Bohai Tour agency, they provide ecological and animals watching tours in Primorsky Krai - the far Eastern region of Russia.
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
*This image is copyright of its original author
Always interesting to hear from locals, even though this once again doesn´t tell too much anything new for this topic, which wouldn´t be known already. Hopefully there is in future more research about interaction between these animals. It would be nice to have some more detailed information. Like how many brown bears there are estimated to be in same area as tigers and what is difference compared to other areas where bears live.
It is natural, that when there are two dominant species in same area competing for same food, that there is some difference. But are we talking about really one species expelling another or adaption by both species to live there side by side and able to survive with current number of possible prey and other sources of food. Of course if tigers kill "too many" female bears, it has to have impact to population even though males would be there without problems.
We can always seek "easy answers" to questions or then we can dig in and try to really understand something. Many times these topics are focused "who is toughest" and still here are many issues more than that when looking at these interactions.
