Tiger Predation on Bears

[mountainlord]

In fights between tigers and bears, these contests usually end in the bears being devoured. - Sanderson, together with others, reports this upon personal observation:



archive.org/details/wildbeastsstud00port/page/218

[mountainlord]

Young, sub-adult tiger easily kills a Sloth bear


"After killing the black bear, the tiger summoned another companion to share the prey."






steemit.com/attack/@mzee/a-tiger-easily-hunt-a-black-bear-why-two-tigers-together-attack

[mountainlord]

Tigress kills two adult bears


Amur tigress "PT99" killed two adult bears. - One adult Brown bear and an adult Himalayan black bear: - She also killed two adult male wild boars:




files.cfc.umt.edu/heblab/CatNews_Miller%20Tiger%20Translocation%202011.pdf

www.researchgate.net/publication/260028840_Amur_tiger_Panthera_tigris_altaica_energetic_requirements_Implications_for_conserving_wild_tigers

[mountainlord]

Siberian tigers are known to attack and kill adult Brown bears:





Siberian tiger is the undisputed king of the Russian forests, even the bears in this region fall prey to these massive predators:

[mountainlord]

Remains of a Himalayan Black bear killed and eaten by a tiger





From this video:

[brobear]

Yes, the Amur tiger is a full-time predator and therefore the beast that large herbivores of the R.F.E. fear the most. He will hunt and ambush Asiatic black bears and even juvenile brown bears. On rare occasion the tiger has even been known to ambush and kill a mature grizzly she-bear; an incredible achievement.

[smedz]

In the diet of the Amur tigers, bears play a signifi-
cant role, though not the primary one (Table 1). In the

study area, only ungulates are more important than
bears: red deer, wild boar, and roe deer (Miquelle et
al., 2005; Seryodkin et al., 2012; Mukhacheva et al.,
2014). Among the brown bears killed by tigers and

found by us, there was only one three- or four-year-
old male; the rest were females and a bear cub. The sex

of the Asiatic black bears obtained by the tiger, appar-
ently, did not matter for the latter. The presence of

bear cubs, probably, makes females more accessible
for tigers, because, in protecting their offspring,
females are exposed to increased danger.

[smedz]

[smedz]

Some information on tiger-sloth bear interactions. 


       


     


         


        


In the first source, below the sloth bear picture on the right hand side, it says that in direct confrontations sloth bears are the ones who normally run, but the message from Singinawa says the opposite. Who is right? Looking at the singinawa message, the tigers are described being "over adventurous". My guess is that these tigers are probably younger animals since naturally a young tiger is more adventurous than an older one.

Attachments:

[mountainlord]

Jan 6, 2020 15:53:54 GMT 5 brobear said:

Yes, the Amur tiger is a full-time predator and therefore the beast that large herbivores of the R.F.E. fear the most. He will hunt and ambush Asiatic black bears and even juvenile brown bears. On rare occasion the tiger has even been known to ambush and kill a mature grizzly she-bear; an incredible achievement.

Once again Brobear, your completely wrong, as usual. Tigers hunt and kill mature adult female Brown bears far more often than you assume. Dale killed at least 4 on record, Misha killed two large adult female Brown bears and other tigers have also killed many adult female Brown bears. It happens quite often, as studies have shown. 

And a tiger killing a mature grizzly she-bear is NOT a "incredible" achievement. A tiger killing an adult Rhino or Elephant is a incredible achievement. Tigers killing adult female Brown bears is nothing special, as this has happened many times throughout history and continues to this day. 

And its not just the large herbivores that fear the tiger, even the BEARS, in general, fear the tiger also. As the tiger is also a major predator of bears. I have also shown you hard evidence that proves that bears also fear tigers, but you still can't admit the truth.

[mountainlord]

From the renowned Russian naturalist and explorer, N.A. Baikov - who had 30 years experience of hunting, exploring and studying tigers in Manchuria.


The only predator that took a significant toll on bears was the tiger. According to Baikov's observations, large Manchurian tigers weighing 600 - 700lbs could kill Brown bears of the same weight. Should a bear sense danger in time, it would flee up the nearest tree, where the tiger would wait for the bear to grow impatient and descend, but more often the tiger would trick the bear into thinking it has left, where it would be really hiding nearby for the bear to come down, where it would attack the bear again.

Also, according to Baikov's observations, tigers will even imitate the call of a female Black bear in order to lure the male Black bear to him:






archive.org/details/bears00perr


Large tigers successfully hunt bears of the same weight:





www.ssj.sk/sk/user_files/ACS_47_S106.pdf


Note - Large Manchurian tigers did hunt and kill mature adult male Brown bears. Jankowski reported the same thing as Baikov did, in Manchuria, where the Sungari river tiger killed and ate a very large male Brown bear. - This confirms that large adult male Brown bears are hunted and killed by tigers.

[mountainlord]

Tigers regularly predating Bears is widespread throughout Asia


Here's a scientific study that shows that tigers very frequently kill and eat both Sun bears and Black bears throughout Southeast Asia. Making up a large 60% significant portion of the tigers diet. Numerous studies from Russia show that tigers very regularly hunt and kill Brown bears and Black bears, and in Southeast Asia, bears are also heavily predated and eaten by tigers, which confirms that tigers are MAJOR predators of bears and commonly prey on them throughout their entire distribution.

A literature review showed that consumption of sun bears and Asiatic black bears by tigers was widespread in Southeast Asia:







In areas outside of Southeast Asia, tigers were shown to consume brown bears in Russia, Asiatic black bears in Russia and northeastern China and sloth bears in India:







Tigers were found to consume Sun bears or Asiatic black bears in all 4 sites where their diet was studied in Southeast Asia, suggesting consumption of bears by tigers might be widespread in Southeast Asia. The percent of bears in tiger diets was relatively large at sites in Malaysia. ( 60% of diet ).

The large amount of bears in tiger diets in Malaysia and Laos indicate tigers can be major predators of bears in some areas.

Furthermore, in other regions of Asia, tigers consumed several species of bears that were larger than sun bears, indicating that in general tigers commonly prey on bears throughout their distribution.








In both sites bears were common food of tigers, whereas they were rarely if ever consumed by dholes.

This indicates that, even when exposed to the same availability of bears, tigers consume significantly more bears than do dholes. This also suggests that consumption of bears by tigers was due to predation instead of scavenging, because both tigers and dholes would have been expected to consume bears in similar amounts if bear carcasses had been available on the sites.








We conclude that tigers and leopards, but not dholes, are potentially important predators of sun bears on mainland Southeast Asia and Sumatra.

Tigers, in particular, might be the most important predator of sun bears on mainland Southeast Asia and Sumatra, given that bear remains were found in all sites within Southeast Asia where their diet was determined, and in 2 of those sites bears were common prey items.







www.researchgate.net/publication/338489937_Large_carnivores_as_potential_predators_of_sun_bears

[pablo]

Good thread. We all know tigers prey on cubs, subadults and some adult females. But what you have here are individual predation accounts, so what is really the predation percentage? Well lets see...

ACTUAL DATA FROM DALE MIQUELLE STATES THAT IN A 53 YEAR STUDY PERIOD, THE PREDATION PERCENTATE WAS A MERE 2.2 % FOR BOTH BROWN AND BLACK BEARS COMBINED. BASICALLY NOTHING.




redirect.viglink.com/?format=go&jsonp=vglnk_157007557545911&key=71fe2139a887ad501313cd8cce3053c5&libId=k1a6hwqk0102ylrr000MA57g2t939&loc=http%3A%2F%2Fdomainofthebears.proboards.com%2Fthread%2F560%2Ffake-information-listed%3Fpage%3D2&v=1&out=https%3A%2F%2Frussia.wcs.org%2FDesktopModules%2FBring2mind%2FDMX%2FDownload.aspx%3FEntryId%3D3170%26PortalId%3D32%26DownloadMethod%3Dattachment&ref=http%3A%2F%2Fdomainofthebears.proboards.com%2Fthreads%2Frecent&title=Fake%20Information%20Listed%3A%20%7C%20Domain%20Of%20The%20Bears&txt=russia.wcs.org%2FDesktopModules%2FBring2mind%2FDMX%2FDownload.aspx%3FEntryId%3D3170%26amp%3BPortalId%3D32%26amp%3BDownloadMethod%3Dattachment

[DonaldCengXiongAzuma]

Tigers do prey on bears up to the largest females just not the mature male Ussuri brown bears. There were probably a lot more killings years ago when wildlife was more numerous and abundant.

EDIT: The OP is explicitly looking for "good quality and reliable info". Whether ML's accounts qualify is up for debate, but two blanket sentences hardly qualify as a contribution here. creature

[brobear]

Amur tigers might prey upon the largest female brown bears, but no way of knowing this with any certainty. For a long time it was popular in posts that the biggest bear on record killed by a tiger was the 440-pound she-bear killed by Dale. However, that was simply one of several size estimations made of that bear and the biggest number of those estimations. The bear might have weighed less than 400-pounds. There is definitely a limit as to the size of bear that a tiger will dare to ambush.