気候変動は,大陸のハチミツの減少に寄与しています
Peter Soroye1, Tim Newbold2, Jeremy Kerr3
1Department of Biology, University of Ottawa, Ottawa, ON K1N 6N5, Canada. peter.soroye@gmail.com.
まとめ
気候変動はハチミツの個体数に影響します 過去の許容範囲を超えた気温上昇は 絶滅のリスクを高め 土地利用の変化とは無関係に 種の分布を変化させます
科学分野:
- エコロジー
- 気候変動の生物学
- 保護生物学
背景:
- 気候変動は生物多様性の損失を 大きく引き起こす要因です
- 生物の生理学的に適した温度と降水量は 生存と分布に不可欠です
- ハチは重要な受粉者であり 減少傾向にあります
研究 の 目的:
- ハチの絶滅とコロニー化ダイナミクスの気候変動の影響を調査する.
- 過去の温度許容値を超えると 種の範囲の変化が予測されるかどうかを判断する.
- 気候変動に関連する人口動態を予測する方法を開発する.
主な方法:
- 北米とヨーロッパの66種のハチミツの長期データを使用した.
- 極端な気温の増加と 種の絶滅/植民地化の可能性との関係を分析した.
- 人口動態を予測するための空間的に明示的なモデリングアプローチを開発した.
主要な成果:
- 温度上昇の頻度が増加すると ハンブルミツバチの絶滅リスクが 大きく高まります
- 歴史的な温度耐性を超えることは,植民可能性と種豊かさにも影響を与えます.
- ハチの集団に対するこれらの気候の影響は,土地利用の変化とは無関係です.
結論:
- 過去の許容範囲を超えた気温上昇は ハチの減少と範囲の変化を促す 重要なメカニズムです
- この発見は,観測された地理的範囲の喪失と大陸間での拡大を説明します.
- このメカニズムは 気候変動による生物多様性の 損失に寄与する可能性があります
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