Habitat selection of sika deer during winter in Kushiro Shitsugen National Park

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  • Inatomi Yoshihiro
    Nature Conservation Division, Institute of Environmental Sciences, Hokkaido Research Organization
  • Uno Hiroyuki
    Nature Conservation Division, Institute of Environmental Sciences, Hokkaido Research Organization
  • Ueno Mayumi
    Nature Conservation Division, Institute of Environmental Sciences, Hokkaido Research Organization

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Other Title
  • 釧路湿原国立公園における冬期のエゾシカの生息地選択
  • クシロ シツゲン コクリツコウエン ニ オケル トウキ ノ エゾシカ ノ セイソクチ センタク

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Abstract

Habitat selection of sika deer (Cervus nippon yesoensis) during the winter in Kushiro Shitsugen National Park was investigated via road counts and aerial survey to implement effective management of deer in the national park. We conducted road counts along the fix route running through the marshland between November 2010 and May 2011, and aerial surveys in the north of the national park early in February, 2011. Confidence intervals of Manly’s selection index for broad-leaved forests calculated via road counts and aerial survey ranged above 1. This suggests that deer selected broad-leaved forests during the long period of winter in the national park. We observed few deer in November, December, April and May, whereas deer density index exceeded 60 deer/km2 between January and March along the route from Kottaro Marsh Observatory to Lake Toro. Thus, we suggest the study area is wintering area for deer. We conclude that broad-leaved forests during the winter will be an effective place and season to cull deer with guns or traps in the national park.

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