Cumberland Times-News

Outdoors

June 29, 2013

Fewer trout bad news for elk calves

CASPER, Wyo. — A drop in migratory elk calf numbers in and around Yellowstone National Park may be linked to a loss of cutthroat trout in Yellowstone Lake.

As cutthroat trout numbers declined, some grizzly bears began switching from eating trout to preying more on elk calves, said researcher Arthur Middleton.

Middleton was the lead author on a paper called “Grizzly bear predation links the loss of native trout to the demography of migratory elk in Yellowstone,” which was published in a science journal called Proceedings of the Royal Society B.

“We perhaps shouldn’t be so quick to departmentalize fisheries management and wildlife management because even though they seem like separate parts of an ecosystem they can turn out to be more closely linked that we thought,” Middleton said.

Drought still plays a role in declining elk calf production by reducing pregnancy rates, and increasing numbers of bears and wolves are also a factor. However, research suggests some bears are eating more elk calves while elk are still on their summer range near Yellowstone Lake, said Middleton, who worked with nearly a dozen other biologists on the paper.

Elk/calf ratios in migratory herds around the park have decreased in varying degrees since the mid-1990s, and have been low since 2002.

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Outdoors
  • No Bambi for you, Mrs. Doe

    Some people want so badly for deer birth control to work that they actually think it will, even on wild populations.
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    A week ago on the Outdoors page we ran the deer there do what deer  everywhere do. They eat the easiest food available such as gardens and ornamental plantings. They walk in front of moving cars. They give ticks and  parasites a place to live.

    April 19, 2014

  • Blue catfish Bad catfish should be eaten

    ANNAPOLIS — The Maryland Department of Natural Resources has  launched  a  statewide  campaign  to  educate  citizens  about invasive blue and flathead catfish -  their negative impact on native fish species and what anglers can
    do to help.

    April 19, 2014 1 Photo

  • Nice first one Nice first one

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    April 19, 2014 1 Photo

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    April 19, 2014

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    April 19, 2014

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        •    Approve 2014 - 2015 Big Game Hunting Regula- tions.
     

    April 19, 2014

  • W.Va. cautions about eating certain fish

    CHARLESTON,  W.Va.  (AP)  — West Virginia has updated its advisories for eating fish caught in lakes and rivers.

    April 19, 2014

  • U.S. Army Corps campgrounds open

    HUNTINGTON, W.Va. (AP) — The U.S. Army Corps of Engineers is preparing to open campgrounds at five West Virginia lakes.

    April 19, 2014

  • Fishing rodeo slated

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    Register at canderson@dnr. state.md.us or call 301-722-1480.

    April 19, 2014

  • Crossbow use begins for New York deer hunters

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    April 19, 2014