九州大学北海道演習林におけるエゾシカ有害鳥獣捕獲の効率とコスト

Translated title of the contribution: Efficiency and cost of nuisance deer population control in Ashoro Research Forest.

長慶一郎, 榎木勉, 田代直明, 馬渕哲也, 井上幸子, 緒方健人

Research output: Contribution to journalArticlepeer-review

Abstract

北海道足寄町に位置する九州大学北海道演習林において実施されたシカ有害鳥獣捕獲の実施状況を明らかにし, 捕獲期間中に目撃されるシカの群れ構成数の動向と捕獲効率や費用との関係について検討した。捕獲期間中, 延べ従事人数は282人, 延べ従事時間は742時間の有害鳥獣捕獲が実施され, 420回の目撃機会があり, 1,711頭を目撃し, 192頭を捕獲した。目撃機会あたり捕獲できる頭数はほとんどの場合1頭であったことから, 目撃機会あたりの群れ構成数が大きいほど取り逃しが増え警戒心の強いシカを生み出すことが懸念された。時間経過にともなう目撃頭数の変化は見られなかったが, 捕獲頭数は減少しており, 時間経過にともなう捕獲効率の低下が示唆された。有害鳥獣捕獲における収支額は一人あたり全体の平均で673円/時間であった。捕獲効率や収支状況は構成した班によって異なっていた。以上の結果から, 詳細なデータを元に捕獲の効果とコストを検証しながら最適な個体数調整の方法を模索していくことが重要であると考えられた。We evaluated the efficiency and cost of nuisance deer (Cervus nippon yesoensis) population control by shooting conducted in Ashoro Research Forest of Kyushu University. We also analyzed the relationships between the catch efficiency and the trend of the deer population size. 282 person (742 person-hours) were taken in the period of the population control. We found 1,711 deer on 420 opportunities for sighting of deer. In most cases, only one deer was captured per one sighting. The larger number of deer in a group sighted, the larger number of deer would be missed. It is concerned about increase in the vigilance of deer. The number of sighted deer per one opportunity did not change with time after the control started, while the efficiency of catch decreased. The balance payment of the population control was 673 yen/hour on average. The efficiency and cost differed with hunting group. The results of our study confirmed that it is important to explore the adequate method of the population control with evaluation of the efficiency and cost.
Translated title of the contributionEfficiency and cost of nuisance deer population control in Ashoro Research Forest.
Original languageJapanese
Pages (from-to)30-39
Number of pages10
JournalBulletin of the Kyusyu University Forests
Issue number94
Publication statusPublished - Mar 2013
Externally publishedYes

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