Wyoming Expands Moose Study

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

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.

More Mountain Lions

mo mountain lionWhere are there more mountain lions? There are increases Puma concolor sightings just about everywhere, recent news reports say.

An article in The New York Times focuses on mountain lions’ expansion east from their strongholds in the Rocky Mountains and Texas. The article says that mountain lion sightings are now common in the Midwest, and it includes a map that shows recent sightings, including several in New England.

Read The New York Times article here.

In Arizona, an abundance of mountain lions in the Catalina Mountains has some folks worried about a planned release of bighorn sheep there, says an Arizona Daily Star article. A management plan calls for killing mountain lions that kill the bighorns, although the mountain lions should have plenty of other prey, the article quotes Jim Heffelfinger, regional game specialist for the Arizona Game and Fish Department as saying.

An increase in deer in the area likely lead to the increase in mountain lions, the article says.

Read the Arizona Daily Star article here.

Mountain lion populations have been going up in California for at least 20 years, with hundreds of sightings annually, but that doesn’t mean the sight of two mountain lions in Redlands, California isn’t news. Redlands is near the San Bernardino Mountains, east of Los Angleles.

Read the Los Angeles Times article here.

Photo: One of the increasing number of Midwestern mountain lions, courtesy Missouri Department of Conservation

More Mountain Lions

mo mountain lionWhere are there more mountain lions? There are increases Puma concolor sightings just about everywhere, recent news reports say.

An article in The New York Times focuses on mountain lions’ expansion east from their strongholds in the Rocky Mountains and Texas. The article says that mountain lion sightings are now common in the Midwest, and it includes a map that shows recent sightings, including several in New England.

Read The New York Times article here.

In Arizona, an abundance of mountain lions in the Catalina Mountains has some folks worried about a planned release of bighorn sheep there, says an Arizona Daily Star article. A management plan calls for killing mountain lions that kill the bighorns, although the mountain lions should have plenty of other prey, the article quotes Jim Heffelfinger, regional game specialist for the Arizona Game and Fish Department as saying.

An increase in deer in the area likely lead to the increase in mountain lions, the article says.

Read the Arizona Daily Star article here.

Mountain lion populations have been going up in California for at least 20 years, with hundreds of sightings annually, but that doesn’t mean the sight of two mountain lions in Redlands, California isn’t news. Redlands is near the San Bernardino Mountains, east of Los Angleles.

Read the Los Angeles Times article here.

Photo: One of the increasing number of Midwestern mountain lions, courtesy Missouri Department of Conservation

City Life Changes Birds

Euro blackbirdThe bright lights (and noise) of the big city haven’t just made the days of songbirds longer, they have thrown a wrench in the birds’ circadian rhythms, researchers studying European blackbirds have found. The study, which is in the current issue of the Proceedings of the Royal Society B, found that city birds wake up 30 minutes earlier than their forest counterparts and stay up nine minutes later after dark.

When brought into the lab, the city birds still started their days earlier, but their sleep and rest cycles were off.

Read the journal paper, here.
Read coverage of the study from the BBC, here.
And read the Atlantic Cities blog post, here.

Photo: European black bird by Malene Thyssen, http://commons.wikimedia.org/wiki/User:Malene GNU Free Documentation License, Creative Commons Attribution ShareAlike 2.5

City Life Changes Birds

Euro blackbirdThe bright lights (and noise) of the big city haven’t just made the days of songbirds longer, they have thrown a wrench in the birds’ circadian rhythms, researchers studying European blackbirds have found. The study, which is in the current issue of the Proceedings of the Royal Society B, found that city birds wake up 30 minutes earlier than their forest counterparts and stay up nine minutes later after dark.

When brought into the lab, the city birds still started their days earlier, but their sleep and rest cycles were off.

Read the journal paper, here.
Read coverage of the study from the BBC, here.
And read the Atlantic Cities blog post, here.

Photo: European black bird by Malene Thyssen, http://commons.wikimedia.org/wiki/User:Malene GNU Free Documentation License, Creative Commons Attribution ShareAlike 2.5

Early Results in Minn. Moose Calf Study

Moose_CalfLate last month Minnesota Department of Natural Resources researchers collared 49 moose calves within hours of their birth, the Grand Forks Herald reports. Part of a larger study trying to solve Minnesota’s high moose mortality rate, the collared calves were born to collared mothers, a fact that allowed researchers to find them quickly after birth, the article says.

Results have come quickly, perhaps too quickly. Researchers knew that over half of all moose calves die within their first year. But already 22 of the calves, nearly half, have been found dead, mostly from predation by wolves and bears.

The study revealed other surprises. Of the moose that gave birth last month, 58 percent had twins, which was a higher rate than the researchers expected. They also found that the calves started eating plants earlier than had been previously thought.

The article says that the high adult death rate is the big issue in Minnesota, but a low rate of survival for calves is another concern. The 22 necropsies that will be performed on the dead moose calves should shed light on the issue.

More details in the Grand Forks Herald article, here.

Photo: A moose calf, although not from this study. By Leroy Anderson, courtesy US Fish and Wildlife Service.

 

Vultures As Pollution Sentinels

Turkey_VultureResearchers from the Hawk Mountain Sanctuary in Pennsylvania have been studying vultures throughout the New World to see if they are effective sentinels for environmental pollutants, such as lead.

The theory, says an Associated Press article that ran in the Havasu News (AZ), is with their ability to eat and digest biological toxins, vultures may be accumulating man-made toxins as well. Testing them for toxins may reveal hot spots that can then be investigated.

A Hawk Mountain Sanctuary blog reveals that they have been at this for ten years. The big news today is that they have expanded the study in to Arizona. The hope is that information from the tough vultures will provide more information on the lead poisoning that is killing the already federally endangered California condors.

Read the Associated Press article here.
Read the Hawk Mountain Sanctuary “Vulture Chronicles” blog here.

Photo: Turkey vulture, by Lee Karney, courtesy US Fish and Wildlife Service

Indiana Studies Urban Fawns

collared fawn IndianaFrom an Indiana Department of Natural Resources press release:

DNR Division of Fish & Wildlife biologists are partnering with Ball State University biologists to determine how white-tailed deer fawns move in urban areas compared to rural areas.

The study kicked off this spring with more than 30 fawns being collared with lightweight radio transmitters to track their movement. The project will last two years and the data collected will be used to help with statewide management of white-tailed deer. The data will also provide insight into the differences in the lives of urban and rural fawns.

Read the entire press release here.

Photo: Collared fawn, courtesy of Indiana DNR

 

 

 

Mountain Lion Caught Fishing

The Missoulian reports that Montana Fish, Wildlife and Parks bear manager Jamie Jonkel caught something unexpected on the trail camera he set up to monitor a trout spawning stream on a tributary of the Blackfoot River. He expected to get videos of black bears catching rainbow trout. And he did.

But he also got a video of a mountain lion pouncing on a trout and then another shot of the lion with the trout in its mouth.

See the article for speculation about how rare or common this behavior is in mountain lions, as well as speculation for its cause. For the record, the article says that the area is good mountain lion habitat with plenty of game.

Read the article in the Missoulian, here.