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Post by tom on Jan 10, 2021 18:34:26 GMT -5
It just seems odd. The only thing I can think of and it just may be as simple as the urge to feed is not as urgent??? dunno
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Post by King Kodiak on Jan 10, 2021 23:42:08 GMT -5
It just seems odd. The only thing I can think of and it just may be as simple as the urge to feed is not as urgent??? dunno I have read the whole source, and the only thing i found is this:
Although monthly sample sizes likely were too low to detect statistical differences, adult females and males generally lost fat from den emergence through June, but then gained fat thereafter. Subadult males and subadult females lost fat from den emergence through July and then gained fat thereafter.
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Post by tom on Jan 12, 2021 9:39:00 GMT -5
So basically it doesn't give a specific reason for this fat loss by mid summer? It could be just the urge to gorge themselves has slowed by midsummer, instinct to do the opposite picks up as we move thru summer and into early fall. In coastal Alaska that would coincide with the Salmon runs. The Bears instinctually know that the Salmon will only be here for a certain time and the time to feed is then.
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Post by brobear on Jan 12, 2021 9:47:24 GMT -5
So basically it doesn't give a specific reason for this fat loss by mid summer? It could be just the urge to gorge themselves has slowed by midsummer, instinct to do the opposite picks up as we move thru summer and into early fall. In coastal Alaska that would coincide with the Salmon runs. The Bears instinctually know that the Salmon will only be here for a certain time and the time to feed is then. Perhaps; the bears have shifted their interest from food to the ladies
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Post by tom on Jan 12, 2021 9:56:16 GMT -5
Hadn't thought of that brobear. You may be onto something or you're on something.....
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Post by King Kodiak on Jan 12, 2021 10:09:08 GMT -5
So basically it doesn't give a specific reason for this fat loss by mid summer? It could be just the urge to gorge themselves has slowed by midsummer, instinct to do the opposite picks up as we move thru summer and into early fall. In coastal Alaska that would coincide with the Salmon runs. The Bears instinctually know that the Salmon will only be here for a certain time and the time to feed is then. It doesn't state a reason no, at least i didn't see it, that is all i saw. It could be that the downward trend just keeps going for 1 more month after hibernation. Anyways, for Yellowstone grizzlies the drop is only around 2-3% from May to June.
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Post by brobear on Jan 12, 2021 16:53:48 GMT -5
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Post by brobear on Jan 12, 2021 18:19:13 GMT -5
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Post by King Kodiak on Jan 12, 2021 18:42:31 GMT -5
tom : From reply #67:
Bingo. Brobear was right, the focus is set on the females.
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Post by kesagake on Jun 29, 2021 12:40:46 GMT -5
The body fat percentage of black bears/grizzlies in summer is ~15-20%; in fall it's between 25-30%. Show that to the big cat fans who always reference a max. number of 40% as the general norm. Also, from the charts I've seen wild lions average ~13% in terms of body fat and larger male big cats almost always come in at ~20%. Well, I think 40% of fat most likely came from females giving birth to cubs. I saw @zade The Badass aka @the solo hunter using it as proof that bears can't get muscles and make them look weak compared to tigers on Tapatalk. But that ignorant dick actually didn't read it carefully, it says that females that give birth to cubs have 40% of fat. He's only a misinformer.
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Post by brobear on Jun 29, 2021 12:56:52 GMT -5
I understand how fanboys can raise your body temperature; but be aware of sinking down to their level with the name-calling.
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Post by brobear on Jun 29, 2021 13:04:01 GMT -5
Language:
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Post by brobear on Jul 23, 2021 7:50:04 GMT -5
Many big cat fans are hooked on this idea that body fat ( any amount ) reduces a man or animal's strength level. I'm not talking about educated posters, just those mainstream fanboys whose concentration is on "winning" rather than the truth. Lion fans will even argue that a lion is stronger than a tiger because a tiger has a tiny percentage of fat more than the lion. Fat remains a burning issue with those guys. But, if they were to watch some of the "fat" wrestlers doing cartwheels or take a good look at the champion weightlifters...
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Post by Deleted on Jul 23, 2021 16:50:36 GMT -5
I noticed, that you have been discussing about it, that brown bears are lighter in the summer than after hibernation. As it has been discussed, reason is mating time. Male bears use a lot of energy during that time, sometimes they can move hundreds of kilometres when they seek mating partner. I have read about it in some Finnish scientific article, I can look if I find it. But it´s not only assumption, it has been observed by biologists and causal relation is clear what comes to it.
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Post by brobear on Jul 24, 2021 3:57:36 GMT -5
I noticed, that you have been discussing about it, that brown bears are lighter in the summer than after hibernation. As it has been discussed, reason is mating time. Male bears use a lot of energy during that time, sometimes they can move hundreds of kilometres when they seek mating partner. I have read about it in some Finnish scientific article, I can look if I find it. But it´s not only assumption, it has been observed by biologists and causal relation is clear what comes to it. I agree, although I only recently learned this fact. Makes sense though. The male bears are eating less during this time. Perhaps, the reason it is said that the Summer months is when a brown bear should be weighed is because this is when we get a clear picture of the bear's size minus the fat.
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Post by Deleted on Jul 24, 2021 4:45:07 GMT -5
I noticed, that you have been discussing about it, that brown bears are lighter in the summer than after hibernation. As it has been discussed, reason is mating time. Male bears use a lot of energy during that time, sometimes they can move hundreds of kilometres when they seek mating partner. I have read about it in some Finnish scientific article, I can look if I find it. But it´s not only assumption, it has been observed by biologists and causal relation is clear what comes to it. I agree, although I only recently learned this fact. Makes sense though. The male bears are eating less during this time. Perhaps, the reason it is said that the Summer months is when a brown bear should be weighed is because this is when we get a clear picture of the bear's size minus the fat. This is a matter which isn´t discussed so often, but it is as it is. This concerns males, females don´t move so much and they are less active during mating time. Females have smaller territories and if they don´t have cubs, they have no reason to move much, males will find them. Females with cubs are forced to move more because they have to actively avoid male bears. But as said, males move a lot and they fight a lot during mating time, these are obvious reasons for it, that they use a lot of energy and lose weight. That how much male bears travel during summer time. Watching Katmai bears at Brooks falls gives easily wrong impression for many people, I guess. Here two quotes: "When snow is on the ground, the bear is in hibernation. Bears retreat into their winter dens between September and March and wake up again in March–May. In the summer the males move around a lot more than most people think. They may travel several hundred kilometres in a short period of time. Female bears and their cubs live in a certain territory that may only span a few square kilometres." "Male and female bears live in their own territories and do not really come into contact with each other outside of the mating season. The mating season begins in May and lasts until July and during this time the males may have fierce battles over the same female." www.largecarnivores.fi/species/brown-bear/bear-behaviour-and-reproduction.html
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Post by OldGreenGrolar on Sept 28, 2021 8:24:47 GMT -5
Bears in the tropic like sloth and sun bears do not have the extra fat for hibernation as there is no winter in their area. Yet they are muscular looking. With or without fat, bears are strong animals.
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Post by brobear on Oct 13, 2021 4:32:45 GMT -5
Otis wins again in the annual Fat Bear contest:
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Post by brobear on Oct 13, 2021 4:37:24 GMT -5
Reply #406 reads: "480 pounds" which is absurd. Otis is bear number #480. His weight, especially when ready for his long Winter's sleep, is far above 480 pounds.
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Post by brobear on Oct 16, 2021 6:53:16 GMT -5
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