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Post by Gorilla king on Jul 24, 2021 11:20:40 GMT -5
Reply #39, wow very nice buddy! Never seen that before. And its from a great source, The Amur tiger programme. Its not everyday a bear killing tiger account is found, and its from 2017. Now lets try to find more info about "Uporny", lets see if he was a subadult or adult.
Well if the account is from 2017 then WWF said that he was captured at age of more than 3 years then released in the wild after one year. So deducting this he died as adult. wwf.ru/en/resources/news/amur/eksperty-vyyasnili-prichinu-gibeli-tigra-upornogo-/ |
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Post by Gorilla king on Jul 24, 2021 11:35:57 GMT -5
Here is when Uporny was released into the wild in 2015:
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Post by Gorilla king on Jul 24, 2021 16:14:36 GMT -5
Honestly, there is some confusion with this event, it sounds as though it is not confirmed who killed Uporny, but most reports state it was most likely another larger tiger.
The Amur tiger centre first reported that event on 14 March 2017, (same as The Amur tiger Programme) so at first, they just speculated that it might have been killed by a brown bear or another tiger:
"The cause of Uporny’s death is not clear yet. Most likely, he got into a fight with a larger predator, probably a brown bear or another tiger. The location of the tiger’s death and the nature of the signal loss make us think that the tiger was not killed by a man. But let’s wait for the results of the examination."
amur-tiger.ru/en/press_center/news/740/
But later on, when the carcass was analyzed better, it was concluded that the most likely cause of death was because of a fight with a larger tiger. Here is what the Amur tiger centre stated on 21 April 2017, more than a month after the carcass was found:
EXPERTS ASCERTAINED THE REASON OF UPORNY THE TIGER’S DEATH
21.04.2017
Today specialists of Primorskaya State Academy of Agriculture, the Amur Tiger Center and WWF-Russia carried out an examination to determine the reasons for Uporny the Tiger’s death. They came to the conclusion that the tiger died as a result of a fight with another stronger predator.
"The conclusion is almost unambiguous: the death of the animal was caused by the attack on him of another predator. According to our version, this could be another tiger, also a fairly large male. And this confirms the version that the life of predators in the wild is extremely difficult and mortality for natural reasons, let's say, happens more often than the scientific literature states," comments Pavel Fomenko, head of the WWF Russia Amur Branch for the Conservation of Rare Species, an Honorable worker of environment conservation of the Russian Federation.
"A larger tiger, proved to be more fortunate, inflicting a wound onto Uporny, which resulted in instant death. Nevertheless, Uporny made a contribution to the Amur tiger conservation - thanks to the data on his movements, we got more information about how tigers settle in unusual areas of their habitat. We also hope that his meetings with a tigress, that we found out about during the field tests, will bring the offspring, and Uporny will leave his mark in the history of the Amur tiger population increase", - comments Candidate of Biological Science Sergei Aramilev, director of the Far Eastern branch of the Amur Tiger Center.
amur-tiger.ru/en/press_center/news/765/
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Post by Gorilla king on Jul 24, 2021 16:30:14 GMT -5
Ok, so we have to have the same logic as the accounts of tigers killing adult male brown bears, those are not confirmed, but unfortunately the Uporny account is not confirmed either. This account is very similar to the huge sloth bear killing tiger account, it was never confirmed if a sloth bear or another tiger did it. But The Amur tiger centre has an email address, so i just sent them an email and asked them and hope i get a clear answer. Here is their email:
amur-tiger.ru/en/contacts/
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Post by Gorilla king on Jul 28, 2021 13:24:29 GMT -5
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Post by Gorilla king on Jul 28, 2021 13:41:42 GMT -5
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Post by Montezuma on Jul 29, 2021 9:15:44 GMT -5
Email from Amur tiger programme.  |
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Post by Gorilla king on Jul 29, 2021 9:28:59 GMT -5
Reply #46, oh very nice, they answered you buddy. Yeah, that's "The Amur tiger Centre" though, "The amur tiger programme" is another organization. unfortunately yes, from most reports it sounded like another tiger did it. Well, maybe next time a brown bear will do it, (if the tiger doesn't run away from kill sites), ha ha ha.
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Tom
Sun bear
Posts: 16
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Post by Tom on Jul 29, 2021 12:05:51 GMT -5
Reply #46, oh very nice, they answered you buddy. Yeah, that's "The Amur tiger Centre" though, "The amur tiger programme" is another organization. unfortunately yes, from most reports it sounded like another tiger did it. Well, maybe next time a brown bear will do it, (if the tiger doesn't run away from kill sites), ha ha ha. Why do you say "if the Tiger doesn't run away from kill sites" and then laugh? What is the joke? Serious question... |
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Post by Gorilla king on Jul 29, 2021 12:36:22 GMT -5
Reply #46, oh very nice, they answered you buddy. Yeah, that's "The Amur tiger Centre" though, "The amur tiger programme" is another organization. unfortunately yes, from most reports it sounded like another tiger did it. Well, maybe next time a brown bear will do it, (if the tiger doesn't run away from kill sites), ha ha ha. Why do you say "if the Tiger doesn't run away from kill sites" and then laugh? What is the joke? Serious question... |
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Post by Gorilla king on Jul 30, 2021 6:46:57 GMT -5
AMUR TIGER AND USSURI BROWN BEAR:
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Post by Gorilla king on Jul 30, 2021 7:02:09 GMT -5
Estimating Amur tiger (Panthera tigris altaica) kill rates and potential consumption rates using global positioning system collars
Abstract and Figures
The International Union for Conservation of Nature has classified all subspecies of tigers (Panthera tigris) as endangered and prey depletion is recognized as a primary driver of declines. Prey depletion may be particularly important for Amur tigers (P. t. altaica) in the Russian Far East, living at the northern limits of their range and with the lowest prey densities of any tiger population. Unfortunately, rigorous investigations of annual prey requirements for any tiger population are lacking. We deployed global positioning system (GPS) collars on Amur tigers during 2009—2012 to study annual kill rates in the Russian Far East. We investigated 380 GPS location clusters and detected 111 kill sites. We then used logistic regression to model both the probability of a kill site at location clusters and the size of prey species at kill sites according to several spatial and temporal cluster covariates. Our top model for predicting kill sites included the duration of the cluster in hours and cluster fidelity components as covariates (overall classification success 86.3%; receiver operating characteristic score of 0.894). Application of the model to all tiger GPS data revealed that Amur tigers in this study made a kill once every 6.5 days (95% confidence interval [95% CI] 5.9—7.2 days) and consumed an estimated average of 8.9 kg of prey biomass per day (95% CI 8.8—9.0 kg/day). The success of efforts to reverse tiger declines will be at least partially determined by wildlife managers' ability to conserve large ungulates at adequate densities for recovering tiger populations.
FOR THIS STUDY, THEY USED 1 ADULT MALE TIGER AND 2 ADULT FEMALES OVER A 3 YEAR PERIOD, FROM 2009-2012. OUT OF 111 TOTAL KILLS, THEY ONLY FOUND 1 BROWN BEAR AND ONLY 1 ASIATIC BLACK BEAR KILLED.
www.researchgate.net/publication/260178925_Estimating_Amur_tiger_Panthera_tigris_altaica_kill_rates_and_potential_consumption_rates_using_global_positioning_system_collars
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Post by Gorilla king on Jul 30, 2021 7:12:49 GMT -5
USSURI BROWN BEAR AND ASIATIC BLACK BEAR:
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Post by oldcyansilverback on Jul 30, 2021 10:50:17 GMT -5
That Ussuri brown bear above looks black rather than brown. It is not called the ‘black grizzly’ for nothing.
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Post by arctozilla on Jul 30, 2021 10:58:58 GMT -5
Reply #46, oh very nice, they answered you buddy. Yeah, that's "The Amur tiger Centre" though, "The amur tiger programme" is another organization. unfortunately yes, from most reports it sounded like another tiger did it. Well, maybe next time a brown bear will do it, (if the tiger doesn't run away from kill sites), ha ha ha. You are talking about Urpony, aren't you? |
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Post by Gorilla king on Jul 30, 2021 11:09:06 GMT -5
Reply #46, oh very nice, they answered you buddy. Yeah, that's "The Amur tiger Centre" though, "The amur tiger programme" is another organization. unfortunately yes, from most reports it sounded like another tiger did it. Well, maybe next time a brown bear will do it, (if the tiger doesn't run away from kill sites), ha ha ha. You are talking about Urpony, aren't you? |
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Post by oldcyansilverback on Jul 31, 2021 7:04:59 GMT -5
Reply 51. Bears are not regular prey for tigers once again.
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Tom
Sun bear
Posts: 16
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Post by Tom on Jul 31, 2021 17:37:03 GMT -5
Conflicts between the two are likely far and few between. There are estimated to be only 500 wild Amur Tigers left in the RFE. Disputes over a kill or carcass many times I'm guessing are settled with out a fight. The fact that male Tigers sometimes prey on female Bears or cubs I suspect is also somewhat of a rare event. How often do they even cross paths is something even a biologist can't answer with certainty.
I truly believe the two have a healthy respect for each other and avoid conflicts when at all possible. There are always exceptions of course and when starvation becomes the number one thing on a Tiger or Bears mind sometimes caution is thrown to the wind.
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Post by Gorilla king on Jul 31, 2021 18:12:22 GMT -5
Reply #57, i agree with everything said there. That sounds exactly how interactions work yes.
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Post by arctozilla on Aug 1, 2021 6:32:17 GMT -5
Was the brown bear an adult? Even if that was a female (at least) then she has been probably killed by a male adult tiger because according to Siberian Tiger Project only two cases of tigresses killing brown bears are confirmed. |
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