Tag Archives: moose

Moose Health in Montana and Minnesota

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Minn moose collaringMontana Fish, Wildlife and Parks has begun a 10-year study of moose in the state to try to determine the cause of a 75 percent over the last 20 years, says an article in the Ravalli Republic. The article follows Montanta FWP biologist Nick DeCesare as he tracks one of his collared moose and finds that the moose is haggard, has blue eyes and appears to be blind — all symptoms of arterial worm.

Arterial worm is carried by mule deer, the article notes, and is carried by horseflies. (A situation similar to the brainworm that infects moose in the East, carried by white-tailed deer, although a snail is the vector there.) The arterial worm is a top suspect in moose declines in the West.

Read the whole article, with details of the study, in the Ravalli Republic, here. The article appeared in the newspaper through Science Source, a project of the University of Montana School of Journalism.

Last week a Minnesota Department of Natural Resources press release said that, “Aerial moose survey results for 2014 show no significant change in Minnesota’s moose population even though more animals were seen than last year.” Last year the estimate was 2,760, while in 2014 the estimate is 4,350. The department says the difference is statistically insignificant.

“The higher estimate this winter likely is related to ideal survey conditions rather than any actual increase in the population,” said Lou Cornicelli, wildlife research manager for the DNR. “This year’s heavy snows across northeastern Minnesota made it comparatively easy to spot dark-bodied moose against an unbroken background of white.”

The press release also mentions an adult and calf mortality study that is in its second year, and shows 21 percent mortality among adult moose and 74 percent mortality for calves. DNR will collar additional adults and calves to replace the ones that died in the study.

Read the Minnesota DNR press release here.
Read an article in the Austin (Minn.) Daily Herald, here.

Photo: courtesy Minnesota Department of Natural Resources

NH Moose Study – First Year Report

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NH moose_collaring_Jan2014A total of 43 moose were captured and collared during the first two weeks of a three year moose study in New Hampshire, a New Hampshire Fish and Game press release reports.The study hopes to find the causes of a decline in moose in the state. Biologists took blood samples from the collared moose, as well as hair samples, fecal samples and winter ticks.

For this initial project work, Fish and Game contracted with a specialized helicopter wildlife crew from Aero Tech, Inc., to capture and collar moose for the study, using net-guns and tranquilizer darts, the release goes on to say. Extremely cold temperatures made the work challenging, because it affected some equipment. Another 45 moose will be captured for the study next January.

Find the NH Fish and Game press release here. It includes links to additional information on the moose decline in NH.

Photo: courtesy NH Fish and Game.

 

 

NH Studies Declining Moose

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Moose-and-calves-USFWSBetween January 20 and February 2, 2014, the New Hampshire Department of Fish and Game will be collaring moose in the northern part of the state to study moose decline, a department press release says. The state has contracted with Aero Tech Inc. to collar moose for the study.

The moose population in New Hampshire has declined about 50 percent in the past 20 years. While that decline is worrisome, it is no where near the decline seen in Minnesota, where in some parts of the state the population has declined by 50 percent in a single year. New Hampshire still sets an annual moose hunting season.

“While regional moose populations are indeed facing some serious threats, moose are not on the verge of disappearing from the New Hampshire landscape, but they are declining,” says Kristine Rines, NH’s moose team leader, in the release.

The press release says: “The current study will span three years. Over a two-year period, radio collars will be placed on about 80 moose cows and calves. A graduate student from the University of New Hampshire (UNH), which is partnering with Fish and Game in the study, will track the moose.

“The collared animals will be tracked for four years and monitored for as long as the collars keep transmitting…. Researchers will be looking closely at whether the increase in moose mortality and reduction in reproductive success in New Hampshire is because of winter tick, or if additional disease and parasite problems or other causes of mortality are in evidence.”

“If this trend is driven primarily by winter tick, then every year will be different, because weather is such a big player” [in the number of winter ticks and in winter tick moose mortality], Rines says in the release.

Read the NH Department of Fish and Game press release, here.
Read and watch the WBZ-TV story, here.

Photo: Moose and calves, courtesy US Fish and Wildlife Service. This is the photo in the NH press release, although I previously got it from the source.

 

 

Tick, Tick, Tick, Moose

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Moose-and-calves-USFWSFrom a New Hampshire Fish and Game press release:

New Hampshire Fish and Game is partnering with the University of New Hampshire in a major new research effort to learn more about the causes of moose mortality and how our changing weather patterns may be affecting both the causes and rates of mortality in our moose herd. Funded entirely by federal Wildlife Restoration dollars, this project updates and enhances the research we did from 2001-2006.

 

Over a two-year period, we will place radio collars on 80-90 adult moose cows and calves. A helicopter wildlife crew will capture and collar the animals. We will track the collared animals for four years, monitoring them for as long as the collars keep transmitting. We’ll be looking at how long the individuals live; and when they die, we’ll try to get there as soon as possible to determine cause of death. This research will help us determine what the mortality rate and causes are at this time. It seems to have increased since our last mortality research project. We want to know if mortality is being caused by winter tick or other factors. These answers will inform future management decisions.

Read the rest of the release, which mostly addresses the impact of winter tick mortality on New Hampshire’s moose population (the point being that the population has suffered, but it’s not about to disappear) here. It is in the form of a Q&A with award-winning moose biologist Kristine Rines.

NH Fish and Game winter tick press release/Q&A

Photo: A moose and calves from the NH Fish and Game press release, however, the name of the file indicates that it came from the US Fish and Wildlife Service.

Wyoming Expands Moose Study

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Non-native tree kills moose in AlaskaThe Wyoming Game and Fish Department and the Wyoming Cooperative Fish and Wildlife Research Unit recently collared 28 cow moose to add to the 65 moose they are already tracking with GPS collars, the Sheridan Press reports.

Twelve of those collars provide real-time data, while the rest will fall off after two years, and will need to be collected so the data can be retrieved, the article says.

The article quotes Wyoming Game and Fish South Jackson Wildlife Biologist Gary Fralick as saying that after the first two years of results, some moose are “very localized,” staying in one spot. Other findings include a low birth rate for the moose, and a rump fat level that compares unfavorably to moose in Minnesota, which are in decline.

The rump fat was measured with an ultrasonograph to determine body conditions. The details are still being worked out.

Read the entire article in the Sheridan Press, here.

Wyoming Expands Moose Study

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Non-native tree kills moose in AlaskaThe Wyoming Game and Fish Department and the Wyoming Cooperative Fish and Wildlife Research Unit recently collared 28 cow moose to add to the 65 moose they are already tracking with GPS collars, the Sheridan Press reports.

Twelve of those collars provide real-time data, while the rest will fall off after two years, and will need to be collected so the data can be retrieved, the article says.

The article quotes Wyoming Game and Fish South Jackson Wildlife Biologist Gary Fralick as saying that after the first two years of results, some moose are “very localized,” staying in one spot. Other findings include a low birth rate for the moose, and a rump fat level that compares unfavorably to moose in Minnesota, which are in decline.

The rump fat was measured with an ultrasonograph to determine body conditions. The details are still being worked out.

Read the entire article in the Sheridan Press, here.

Moose: CWD in Canada and New Study in Montana

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mooseThe Edmonton Journal reports that chronic wasting disease (CWD) has been discovered in an adult bull moose that was killed in a vehicle collision in southern Alberta last year. It is the first case of CWD in a moose in Canada, the article says, adding that the disease has previously been found in moose in Colorado and Wyoming.

Read the Edmonton Journal article here.

In Montana, the moose population has been in decline in the last several years, with last year’s moose hunt seeing the lowest numbers in 50 years. An article in the Flathead Beacon says that Montana has joined the states initiating a long-term research project to try to uncover the cause of the decline.

Twelve cow moose have been radio collared for a 10 year study, the article in the Flathead Beacon says. The study will also include analyzing blood samples. Nick DeCesare is the lead biologist for the study, assisted by Jesse Newby.

Read the complete store in the Flathead Beacon, here.

Photo: Not Canadian, eh? A New Hampshire moose by Alan Briere, courtesy of NH Fish and Wildlife

Minnesota Cancels Moose Hunt

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MN moose_header“The state’s moose population has been in decline for years but never at the precipitous rate documented this winter,” said Tom Landwehr, Minnesota Department of Natural Resources commissioner in a press release announcing the cancellation of Minnesota’s moose hunting season.

The commissioner noted that the state’s limited moose hunt was not the cause for the population’s decline.

The 2013 moose hunt was cancelled after aerial survey revealed the sharp drop in the moose population, the press release says. The survey was part of an on-going study of the state’s moose decline. (Previously covered here.)

The hunt’s cancellation was covered on NBC News’ national news. Read the article here.
Read the Minnesota DNR press release here.
Read more about the department’s moose mortality research project, on its webiste, here.

Photo: courtesy of Minnesota Dept. of Natural Resources

Minnesota Launches New Moose Study

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Minn moose collaringA Minnesota Department of Natural Resources (DNR) study will fit 100 moose with GPS collars and implant a second device that can record temperature and heartbeat in 27 of the collared moose, a Minnesota DNR press release reports.

The goal of the study is to shed light on the mysterious decline of moose in the northern part of the state. From the press release:

“The decline in the northeast Minnesota moose population is exhibiting the same pattern of decline that we observed in the northwest,” said Lou Cornicelli, DNR wildlife research manager. “We’re losing about 20 percent of adult moose annually and know from previous studies that predation and hunting are not the primary causes of adult moose mortality. The decline is particularly troubling because more often than not, we can’t determine the primary cause of death.”

The study will collar 75 cows and 25 bull moose. When a collar stops moving for more than six hours (that twice the length of the average moose nap, notes an article in the Duluth News Tribune) the collar will send a text to DNR researchers so that the moose can be necropsied within 24 hours. The collared moose will be tracked for six years.

Read the detailed Minnesota DNR press release here.
Read the Duluth News Tribune article, which has some additional details and punchy quotes, here.
Watch Ericka Butler, DNR wildlife veterinarian, discuss the project on the Northlands NewsCenter website, here.
See more info on Minnesota’s moose research here, including a link to a five-page list of additional moose research projects.

Photo: A moose being collared, but not necessarily for this project. Courtesy of the Minnesota Department of Natural Resources

Game Checkpoints Provide Data on Human Diseases

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Hunter check-ins have always provided a bounty of information on the health of individual animals and the population profile of the species. In Maine this year and for the last few years, they are providing more. The Maine Department of Inland Fisheries and Wildlife has teamed up with the Maine Medical Center Research Institute’s Vector Borne Disease Lab to provide blood samples from moose, white-tailed deer and even some turkeys for the lab’s surveillance mosquito-borne diseases like West Nile and Eastern Equine Encephalitis, according to a story from WSCH TV in Portland, Maine.

By using blood samples from hunter check-ins, the lab is able to get information from remote areas that are difficult (and expensive) to monitor through traditional methods. And, according to the WSCH story, they are finding a surprising amount of these diseases out there.

Read and watch the story from WSCH TV here.