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Post by Gorilla king on Jul 25, 2021 20:17:47 GMT -5
  Mexican Grizzlies (Ursus arctos nelsoni) at the Field Columbian Museum, 1919.From: “The grizzly, our greatest wild animal” by Enos Abijah Mills (1870-1922) (Public Domain)
Scientific name: Ursus arctos nelsoni (Clinton Hart Merriam, 1914)
Description: Smaller than the brown bears of the northern USA and Canada. Male bears weighed up to around 315 kgs, with females being smaller. Length was around 180 cms. Colour varied from pale buff-yellow to a grizzled grey or white which would appear silver in bright sunlight, hence the bear’s Mexican name of “el oso plateado” (the silver bear).
Range: The Mexican grizzly bear was found in the northern territories of Mexico, particularly in the northern savannah and mountain forests, and northwards into New Mexico and Arizona in the USA.
Habitat: Temperate grasslands and mountain pine forests but also adapted to survive the arid conditions of the Sonoran Desert and canyonlands.
Life span: Probably a natural lifespan of around twenty five years in the wild.
Food: In common with other brown bears the Mexican grizzly was an omnivore eating plants, fruits, insects, small mammals and carrion.
Behaviour: It seems unlikely that the bears would have hibernated although they may have spent some time in winter dens. Females produced one to three cubs which would remain with them for around two and a half years, during which time the mother would not become pregnant again. Except during mating and for mothers with cubs the bears were solitary.
Reasons for extinction: With the expansion of cattle farming within the Mexican brown bear’s range the animals increasingly came to be considered by cattle farmers as pests and were trapped, shot and poisoned. The situation deteriorated rapidly in the early twentieth century and the subspecies was rare by the 1930s. Ultimately their range was reduced to the isolated mountains of Cerro Campano, Santa Clara and Sierra del Nido and by 1960 it was believed that only thirty bears or less remained. Although the bears were protected illegal hunting and persecution continued. By 1969, probably sooner, the subspecies was extinct. From time to time there have been rumoured sightings of lone animals and in 1980 Trevino & Jonkel published a report indicating that grizzly bears might still be present in Mexico (see “More Information” below). There have been no further substantiated sightings.
www.bearconservation.org.uk/mexican-grizzly-extinct/ |
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Post by Gorilla king on Jul 25, 2021 20:23:42 GMT -5
Is the Mexican grizzly bear extinct?
The answer to this question depends on a definition that has changed over time. At one time, scientists thought that brown bears] and grizzly bears were separate species, but today, they are considered the same species, Ursus arctos. There isn't a consensus on how best to classify them or how many subspecies there are, however. An estimated 200,000 brown bears live primarily in North America and Russia [source: McLellan]. The Mexican grizzly is a subspecies of brown bear, so cursory research would seem to indicate that the Mexican grizzly is not extinct.
However, if you do a little more digging, you'll find that the International Union for Conservation of Nature produced a book in 1982 stating that Mexican grizzlies were extinct. The IUCN is the organization that tracks the conservation status of plants and animals and ranks animals as threatened, endangered or apparently safe. The group also classifies Mexican grizzlies as a subspecies of brown bear.
The story goes like this: Once upon a time, in the not-so-distant past, a subspecies of brown bears called Mexican grizzly bears lived in the southwestern United States and parts of Mexico. By all accounts, they were smaller than their counterparts in Canada and the northern United States. In the early 1960s, a Mexican rancher began a campaign to eradicate the bears because he blamed them for slaughtering his cattle (in reality, the bears eat mainly plants and insects and rarely go after small mammals). Due to the cattleman's efforts, the Mexican grizzly was probably extinct by 1964.
So is the Mexican grizzly really extinct? It is presumed to be so, although the brown bear species continues to thrive in parts of North America, Europe and Asia. Ecologists consider the Mexican grizzly extirpated, which means it is locally extinct.
animals.howstuffworks.com/extinct-animals/is-mexican-grizzly-bear-extinct.htm
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Post by Gorilla king on Jul 25, 2021 20:26:56 GMT -5
MEXICAN GRIZZLY (URSUS ARCTOS NELSONI)
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Post by Gorilla king on Jul 25, 2021 20:28:28 GMT -5
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Post by Gorilla king on Jul 25, 2021 20:31:21 GMT -5
MEXICAN GRIZZLY BEAR IN A MEXICAN ZOO, YEAR UNKNOWN.
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Post by Gorilla king on Jul 25, 2021 20:33:39 GMT -5
DOUG PEACOCK:
WE PLANNED A TRIP INTO THE LAST STRONGHOLD OF THE MEXICAN GRIZZLY IN THE SIERRA MADRE. IT WAS ONLY A RUMOR BUT WE HAD HEARD THERE WAS ONE LEFT DOWN THERE.
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Post by Gorilla king on Jul 25, 2021 20:36:43 GMT -5
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Post by Gorilla king on Jul 25, 2021 20:41:32 GMT -5
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Post by Gorilla king on Jul 25, 2021 20:52:19 GMT -5
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Post by Gorilla king on Jul 25, 2021 20:58:27 GMT -5
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Post by oldindigosilverback on Aug 18, 2021 8:43:31 GMT -5
One of the smaller grizzly bears.
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Post by fluffyfatbear on Nov 4, 2021 16:23:22 GMT -5
This is great! I wonder if these bears actually had standoffs with Jaguars, the chance would be likely
BROWN BEAR VS JAGUAR
An amazing standoff
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Post by Gorilla king on Nov 4, 2021 18:49:31 GMT -5
Reply #11, that grizzly was most likely displacing that jaguar from a kill.
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Post by fluffyfatbear on Nov 4, 2021 18:53:00 GMT -5
King Kodiak, I think so to, well the natives of Mexico believe the Jaguar has no fear, I guess the Jaguars only fear is the mighty grizzly bear
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Post by Montezuma on Nov 4, 2021 20:50:43 GMT -5
King Kodiak, I think so to, well the natives of Mexico believe the Jaguar has no fear, I guess the Jaguars only fear is the mighty grizzly bear The natives of the mesoamerica, whete there were no bears, revered jaguars, eagles and coyotes the most. Grizzlies were respected in tge northern mexico where there were jaguars and bears. There i never heard of natives honoring the jaguar more than the bear. Soon, i will discuss the topic of jaguar vs grizzly bear in native mexico culture becuase ii have got a lot of information and details ablut this topic. Hope that would tell you the reality.🙂 |
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Post by fluffyfatbear on Nov 4, 2021 21:13:14 GMT -5
Montezuma, thank you! I won’t mind seeing
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Post by fluffyfatbear on Nov 4, 2021 21:15:10 GMT -5
King Kodiak, I think so to, well the natives of Mexico believe the Jaguar has no fear, I guess the Jaguars only fear is the mighty grizzly bear The natives of the mesoamerica, whete there were no bears, revered jaguars, eagles and coyotes the most. Grizzlies were respected in tge northern mexico where there were jaguars and bears. There i never heard of natives honoring the jaguar more than the bear. Soon, i will discuss the topic of jaguar vs grizzly bear in native mexico culture becuase ii have got a lot of information and details ablut this topic. Hope that would tell you the reality.🙂 so, the southern Mexican natives honoured the Jaguar and the northern Mexican natives honoured the grizzly bear? Never know that thanks! |
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Post by oldindigosilverback on Nov 6, 2021 7:32:23 GMT -5
The Mexican grizzly is like the Himalayan brown bear of the grizzlies if not mistaken. I forgot who said this grizzly is more passive than the other grizzly types on Domain of the Bears.
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Post by Gorilla king on Nov 6, 2021 7:42:43 GMT -5
The Mexican grizzly is like the Himalayan brown bear of the grizzlies if not mistaken. I forgot who said this grizzly is more passive than the other grizzly types on Domain of the Bears.
"THE MOST POWERFUL, FEARLESS, AND MAJESTIC OF ALL NATIVE MAMMALS OF MEXICO IS UNQUESTIONABLY, URSUS NELSONI, THE INDIGENOUS GRIZZLY BEAR"
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Post by Gorilla king on Nov 6, 2021 7:49:54 GMT -5
According to Wiki, this subspecies was removed and its now just a population of the common grizzly bear (Ursus arctos horribilis)The Mexican grizzly bear (Ursus arctos horribilis, formerly Ursus arctos nelsoni) is an extinct population of the grizzly bear in Mexico.
en.m.wikipedia.org/wiki/Mexican_grizzly_bear
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