(09-10-2019, 06:04 AM)Roberto Wrote: IVAN SERYODKIN
 
Biologist and project leader (The siberian tiger project)

https://russia.wcs.org/en-us/about-us/staff/projectid/407.aspx

“Tigers are stalk and ambush predators. That means they use a surprise attack to catch their prey. A tigers' feet are padded, which helps them silently sneak up on the prey they hunt. "

“ Large bears cannot only eat up remains after tigers, but also chase them off their prey or join the fight (Sysoev, 1966, Kucherenko, 1971, Kostoglod, 1976, Seryodkin et al., 2005a). In the snow period some bears purposely track tigers and lynxes to find the remains or take away their prey (Kostoglod, 1976, Seryodkin et al., 2012). 

“Brown bears can be aggressive towards the predators (other bears, tigers) and people approaching their prey or carrion.”

https://www.sciencedirect.com/science/article/pii/S207815201630027X#

(09-10-2019, 08:50 PM)Roberto Wrote: Thanks Shadow. I never saw this posted in this forum before, so i thought maybe some people or most people had not seen it. So i decided to posted it. Seryodkin is one if the most knowledgeable authorities on bears and tigers in the RFE. But i agree, there is nothing new on the interactions, thats all.

(09-13-2019, 03:26 PM)Luipaard Wrote: If shared before please let me notice but here's something fascinating; camera traps of a large male brown bear and an Amur tigress in Khabarovski Krai during October 2017 at 30 minutes one after the other. This bear was notoriously continuously harassing the tiger who had four cubs and still has two living with her, regularly usurping her kills!

*This image is copyright of its original author

*This image is copyright of its original author

(09-13-2019, 03:45 PM)Shadow Wrote:

(09-13-2019, 03:26 PM)Luipaard Wrote: If shared before please let me notice but here's something fascinating; camera traps of a large male brown bear and an Amur tigress in Khabarovski Krai during October 2017 at 30 minutes one after the other. This bear was notoriously continuously harassing the tiger who had four cubs and still has two living with her, regularly usurping her kills!

*This image is copyright of its original author

*This image is copyright of its original author

These photos are familiar from different threads. That tigress Rachel (there are some other ways to write her name too) was truly harassed by this bear Mantle (Russian names Chlamus or Khlamida). Soon after these photos it left Rachel alone and disappeared for some time. For some reason there was gathered people to hunt Mantle and kill it to help Rachel, but they didn´t manage to find and shoot the bear.

Rachel met also male tiger Ochkarik soon after these photos and some think, that she called him to help. Difficult to say what made the bear to disappear at that time, but they said, that he is a smart bear and hunters with guns for sure can be intimidating for an experienced bear. Mantle was seen later and last observations at the area early winter 2018. After that no observations so it most likely spends some time somewhere else, male bears can travel hundreds of kilometers during summer.

Rachel moved her place of residence after that incident, but she is ok. She was mating with Ochkarik at the end of January 2019. I asked about Rachel and Mantle from Alexander Batalov and got this much information about it, what happened after these photos.

(09-13-2019, 03:53 PM)Luipaard Wrote:

(09-13-2019, 03:45 PM)Shadow Wrote:

(09-13-2019, 03:26 PM)Luipaard Wrote: If shared before please let me notice but here's something fascinating; camera traps of a large male brown bear and an Amur tigress in Khabarovski Krai during October 2017 at 30 minutes one after the other. This bear was notoriously continuously harassing the tiger who had four cubs and still has two living with her, regularly usurping her kills!

*This image is copyright of its original author

*This image is copyright of its original author

These photos are familiar from different threads. That tigress Rachel (there are some other ways to write her name too) was truly harassed by this bear Mantle (Russian names Chlamus or Khlamida). Soon after these photos it left Rachel alone and disappeared for some time. For some reason there was gathered people to hunt Mantle and kill it to help Rachel, but they didn´t manage to find and shoot the bear.

Rachel met also male tiger Ochkarik soon after these photos and some think, that she called him to help. Difficult to say what made the bear to disappear at that time, but they said, that he is a smart bear and hunters with guns for sure can be intimidating for an experienced bear. Mantle was seen later and last observations at the area early winter 2018. After that no observations so it most likely spends some time somewhere else, male bears can travel hundreds of kilometers during summer.

Rachel moved her place of residence after that incident, but she is ok. She was mating with Ochkarik at the end of January 2019. I asked about Rachel and Mantle from Alexander Batalov and got this much information about it, what happened after these photos.

Thanks for the additional information. This event however once again shows you that neither of these two animals are dominant over one or another. The 'theory' of male tigers targeting sows and cubs and avoiding males seems to be true and the same can be said the other way around.

Also, for what reason did they want to shoot Mantle? Isn't this a natural occurrence?

(09-27-2019, 09:10 PM)GreenGrolar Wrote: Where bear and big cat exist, the former is listed in the section called 'prey'. Bears (including the smaller asian bears like Asiatic black bears and sloth bears), however, are generally given a wide breathe. The reason why there are more accounts of tigers killing Ussuri brown bears compared to vice versa is because the tigers are the ones to select which bear to hunt. Siberian tigers can kill Ussuri brown bears which would be close to their weight (adult females or even shantun male bears - which are old and emaciated) yet a healthy male Ussuri brown bear is immune to tiger predation. In fact, healthy male brown bears usurp tigers of the kills and are in fact the strongest in their territories. They even put their claw marks on areas where tigers mark territories to show their dominance.