PEAX Equipment

Grizzly Bear Dna Study

ELKCHSR

New member
Joined
Nov 28, 2001
Messages
13,765
Location
Montana
STATE WILDLIFE OFFICIALS APPLAUD GRIZZLY BEAR DNA STUDY

Montana wildlife officials recently praised the four-year federally funded study aimed at determining the number of grizzly bears inhabiting the Northern Continental Divide Ecosystem in northwest Montana, one of the last strongholds of the grizzly bear in the lower 48 states.

"The study shows that northwestern Montana’s grizzly bear population is healthy, growing, and genetically diverse," said Jeff Hagener, director of Montana Fish, Wildlife & Parks. "For the 765 grizzly bears in the NCDE—more than twice as many as thought to live there just four years ago—it appears the prospects for their long-term survival are excellent."

Of the six established grizzly bear recovery zones in the U.S., the NCDE is the third largest in area, and may now harbor the greatest number of grizzly bears in the country. It is the largest population connected to Canadian grizzly bear populations.

Since 2004, researchers worked in the NCDE to identify grizzly bear population size, trend, survival, and the corridors that link separate grizzly bear populations. Advances in genetic technology allowed the researchers to analyze 34,000 grizzly and black bear hair samples. Each sample was used to identify species, sex, and individuals from DNA extracted from hair caught in strategically placed fences without ever handling a bear. These new techniques, combined with statistical models, allowed the researchers to estimate that 765 grizzly bears inhabit the NCDE, with 470 females among them.

The $4.8 million project, was directed by the U.S. Geological Survey, and carried out by FWP, the U.S. Forest Service, National Parks Service, U.S. Fish and Wildlife Service, the federal Bureau of Land Management, the Blackfeet Nation, and the Confederated Salish and Kootenai Tribes.

In 2004, researchers estimated that about 300 grizzly bears inhabited the northwestern Montana study area. With today's announcement that the area is home to some 765 grizzly bears, FWP officials said the health and size of the population will give wildlife managers more flexibility to transplant grizzlies to augment other populations or take other actions, based on FWP's grizzly bear management plan. Last month, for instance, the fourth bear in the past four years was relocated in the Cabinet Mountain Range as part of the grizzly bear augmentation project currently funded by the Montana Fish, Wildlife & Parks Foundation.

"Clearly, this threatened species has been well cared for by the people of Montana," Hagener said. "These types of conservation success stories come only with the cooperation of the people who share the landscape with wildlife. Montanans can be proud that they've made room for the ultimate recovery of this important wildlife species."

Hagener noted that NCDE grizzly bears remain federally protected as a threatened species. He said the grizzly bear population could be considered for delisting in a few years if positive population and habitat trends continue to be documented, as was done for the recently delisted Greater Yellowstone grizzly bear population.

-fwp-
 
Since you brought it up...

WASHINGTON (AP) — The majestic grizzly bear, once king of the Western wilderness but threatened with extinction for a third of a century, has roared back in Montana.

The finding, from a $4.8 million, five-year study of grizzly bear DNA mocked by Republican presidential candidate John McCain as pork barrel spending, could help ease restrictions on oil and gas drilling, logging and other development.

Researchers with the U.S. Geological Survey announced Tuesday that there are approximately 765 bears in northwestern Montana. That's the largest population of grizzly bears documented there in more than 30 years, and a sign that the species could be at long last recovering.

The first-ever scientific census shattered earlier estimates that said there were at least 250-350 bears roaming an eight-million-acre area stretching from north of Missoula to the Canadian border. More recent data placed the minimum population at around 563 bears.

"This is two and a half times the number of bears previously estimated," said Katherine Kendall, the lead researcher, who said the results speak for themselves. "There is no evidence that the population size was ever severely reduced..."

In a February 2003 floor speech, he poked fun at the project, describing a scenario where the DNA would be used to help a bear cub find its father and pin down which bear stole hikers' food.

McCain, in stump speeches and in a campaign commercial earlier this year, erroneously said the cost of the study was $3 million and added: "I don't know if it was a paternity issue or criminal, but it was a waste of money." The commercial said the expenditure was "unbelievable."

Supporters of the research included Montana ranchers, farmers and Republican leaders. They pushed for the study as a step toward taking the grizzly bear off the endangered species list. Since 1975, the bear has been threatened in the lower 48 states, a status that bars hunting and restricts development that can diminish its population.

Last year, after more than 30 years of research, the grizzly bear population around Yellowstone National Park was deemed recovered.

"Let's make this an Endangered Species Act success ... get them off the list so we can manage them here in Montana," said John Youngberg, vice president of government affairs for the Montana Farm Bureau, who said that farmers who mistakenly shoot grizzly bears or do so to protect their land face $25,000 fines under current regulations. His explanation for McCain's comments was that it was "silly season."

The McCain campaign did not return requests for comment.

Former Montana Gov. Judy Martz, a Republican and a McCain supporter, said the bear had been used to block the use of the state's abundant natural resources, when all along the animal was plentiful. She asked former Republican Sen. Conrad Burns to help secure the funding, which was paid for in part by add-ons and a $1.1 million earmark for the Forest Service in 2004.

Burns is the McCain campaign's chairman in Montana.

"If it is going to remove it from the list, it is money well spent," said Martz. When asked about McCain's stance, Martz said "unless you live among these issues it is pretty hard to understand what is going on."

The study employed more than 200 field workers. Over 14 weeks in 2004 they collected hair samples from 2,500 barbed-wire hair traps and 4,800 trees that bears naturally rub against to scratch themselves. A mixture of pureed fish guts and cattle blood that was aged in 100 55-gallon steel drums in a rented barn for more than a year before the study began lured bears to the sampling stations. Altogether 34,000 hair samples were analyzed — a number that so overwhelmed the company conducting the DNA tests that it had to buy an additional building and double its staff to handle the project.

The result was the most accurate and precise census of a bear population to date, bear experts said. Researchers also found evidence that the population has been growing in size and expanding its range. Its diversity resembled that of grizzly bear populations in pristine habitats.

The U.S. Fish and Wildlife Service, which is in charge of regulating endangered species, is currently reviewing the bears' status in Montana as part of a five-year review required by the Endangered Species Act. The study's results will be a key piece of evidence used by biologists to determine whether the bear still needs federal protection, a conclusion due out early next year.

But bear experts — and environmentalists — cautioned it will take more than a population count to fully recover the species. Further research into population trends and the bear's habitat will also be needed.

"All the things people have been doing are making a difference," said Chris Servheen, the service's Grizzly Bear Recovery Coordinator.

"This gives us some feedback that the bears are doing really well. This was an investment in the recovery of an icon of the American West, which is the grizzly bear."
 
Money's spent...

Research apparently completed...

Is this a good thing to know, or is it just another ploy to throw rocks at candidates?
 
I think it is a good thing to know. Do you think the study was a good idea?
 
Yep...

I knew when I talked to some 'ologists' a number of years ago on the Roberts Fire that they were looking for some thing different and some $$$ to get it done right...

One of the reasons I follow what I can find on this topic...

As much as you would like to believe to the contrary about me Oak, there are $$$ that need to be spent on wildlife research...

There are also other avenues that could be utilized (which are sorely ignored) to help in these studies, so the $$$ go further the studies more complete...

However, because of potentially bruised egos, are openly dismissed and vehemently distained...
 
So we agree that the study was a good thing. I think it's important to know that McCain thought it was a waste of money. It shows that he is out of touch with wildlife and endangered species issues, including the impacts that theyhave on people local to the issues.
 
It can be pointed out that both sides are EXTREMELY lacking in many areas, that we all argue/debate about...

This is one of those issues like I stated right off the bat, it doesn't matter what any one else thought or didn't think, moneys spent, studies done...

Will it change my mind if McCain didn't like the money spent here...

Nope, as it doesn't change my mind that Obama wants socialist health care...

I'm guessing (now this is just guessing) this wasn't on either of the candidates priority list when it came down for a yea or nay vote...

If any guessing came along, the only one that would have put any thought into the vote would have been Palin...

Would it bother you if Palin was the only one who put any relevance in what you personally find important on wildlife issues and would it sway your voting pattern?
 
Would it bother you if Palin was the only one who put any relevance in what you personally find important on wildlife issues and would it sway your voting pattern?


I'm not a one-issue voter, so I won't be voting solely on a candidates stance on wildlife issues. I've stated more than once on here that I don't think either candidate this year is worth a damn. If I find an article about Obama believing that studies such as this are a waste of money, I'll be sure to post them.

BTW, McCain's choice of Palin made it much more likely that I won't even consider voting for him when the time comes. A month and a half to prove their worth...
 
Fair enough...

One more question if you don't mind...

What do you think about this statement and would you personally be open to other avenues to meet these goals?

There are also other avenues that could be utilized (which are sorely ignored) to help in these studies, so the $$$ go further the studies more complete...

However, because of potentially bruised egos, are openly dismissed and vehemently distained...

I'm not baiting you into any thing, I'm just curious...
 
I have many times...

If you’re interested, PM me, and I'd be happy to give you other alternatives and examples of why they work...
 
A more in depth article off the USGS site for any one interested...

New study estimates 765 grizzly bears reside in northwest Montana
A new study estimates that 765 grizzly bears make their home in the Northern Continental Divide Ecosystem, a 7.8 million acre area in northwest Montana stretching from north of Missoula, Mont., to the Canadian border.

Initiated in 2003, the five-year study provides a better understanding of the population size, distribution, and genetic health of grizzly bears in northwest Montana. It is the largest non-invasive study of bears to date and is the first ever ecosystem-wide scientific assessment of grizzlies in the 12,187-square-mile Northern Continental Divide area.

The grizzly bear population in northwest Montana, thought to be one of the last strongholds of the grizzly in the lower 48 states, has been listed as threatened under the Endangered Species Act since 1975.

A team of more than 200 researchers and crew members worked on the Northern Divide Grizzly Bear Project which was led by the U.S. Geological Survey (USGS) in cooperation with 12 federal, state, and tribal agencies, landowners, universities, and other entities.

Scientists designed a comprehensive study plan that involved non-invasive methods of collecting hair from bear rubs (bears naturally rub against trees and posts) and systematically positioned hair traps that made use of scent lure to attract bears. During the 2004 summer field season, 4,795 bear rubs and 2,558 hair traps were used to collect hair. Approximately 13,000 samples were collected from bear rubs and 21,000 were collected from hair traps, providing researchers with a total of 34,000 bear hair samples.

Through the use of genetic analysis, including DNA fingerprinting, researchers were able to determine the total number of bears sampled and track their detections in time and space. Genetic analysis of the 34,000 hair samples resulted in the identification of 563 individual grizzly bears. USGS scientists then used statistical models to calculate the number of bears not sampled and incorporate them into an estimate of the total population size, leading to a complete population estimate of 765.

"Based on our field studies and state-of-the-art genetic analysis, we are confident that our estimate of 765 grizzly bears residing in the study area in 2004 is solid," said Kate Kendall, USGS Scientist and lead researcher on the project. "This is two and a half times the number of bears previously estimated to live in the area. The new information will allow us to better evaluate mortality rates."

Researchers were also able to examine the gender, genetic health, and amount of occupied habitat of the grizzly bear population. Based on field studies and genetic analysis, scientists estimate that 470 of the 765 bears are females and data indicates that females are present in all 23 bear management units within the study area. The number and wide distribution of females indicates good reproductive potential.

The study also found that the occupied range of the grizzly bears now extends 2.6 million acres beyond the 1993 recovery zone boundary set by the U.S. Fish and Wildlife Service in the Grizzly Bear Recovery Plan.

"Overall, the genetic health of the population is good," said Kendall. "With diversity in the population approaching levels seen in undisturbed populations in Canada and Alaska, there is no evidence that population size was ever severely reduced or that its connection to Canadian populations was broken. The genetic structure suggests that there has been population growth between 1976 and 2007."

Researchers did detect, however, early signs that human development has begun to inhibit interbreeding between bears in one part of the ecosystem.

As part of the population study, researchers made use of remote camera systems to investigate the efficiency of DNA-based sampling methods. Remote, motion-activated cameras were used to investigate how bears and other wildlife species respond to baited hair traps. The cameras also helped scientists to understand more about bear use of naturally-occurring bear rubs and bear marking behavior. Videos produced from the remote cameras have been made available to the general public.

The baseline data collected from the Northern Divide Grizzly Bear Project are aimed at helping federal, state, and tribal wildlife agencies in managing the northwest Montana grizzly population. It will assist the Montana Department of Fish, Wildlife, and Parks in conducting grizzly population trend studies and help the U.S. Fish and Wildlife Service with monitoring program efforts and recovery criteria.

Complete results of the Northern Divide Grizzly Bear Project will be featured in the January 2009 issue of the Journal of Wildlife Management. USGS Scientist Kate Kendall, who led a team of researchers to complete this landmark project, is the principal author.

Read more information about the Northern Divide Grizzly Bear Project.

For a video podcast interview with USGS Scientist Kate Kendall about the project, listen to episode 64 of CoreCast, available soon at http://www.usgs.gov/corecast/.
 
I am thinking we would all be far more entertained by the novel theories The Cheese has that he will only share by Private Message....

Somebody PM him and get them so we can all laugh our asses off.
 

Latest posts

Forum statistics

Threads
113,577
Messages
2,025,605
Members
36,237
Latest member
SCOOTER848
Back
Top