Research press release


Nature Communications

Climate change: Animal adaptations not keeping pace with climate change



今回、Viktoriia Radchukたちの研究グループは、1万90編の科学論文の抄録を検討した上で、71編の既発表論文(13か国の17動物種に関する論文)からデータを抽出し、気候変動に対する動物の応答を、特に鳥類に焦点を合わせて評価した。その結果、フェノロジーの変化は、気候変動に対する適応的変化である傾向が見られ、地球温暖化に合わせる方向に変化していることが明らかになった。これに対して、気候変動に応答して動物の形態が必ず変化するといった傾向は検出されなかった。


The climate is changing at a pace that leaves some animal species unable to adapt quickly enough, finds a meta-analysis published in Nature Communications this week. Although some species have been advancing their seasonal life cycles in response to rising temperatures, the results suggest that these adaptive changes may not be taking place at a rate that would guarantee the long-term persistence of some populations. Populations of European roe deer, song sparrow, common murre and Eurasian magpie were among those at risk.

Climate change has meant that species’ historical phenology (the timing of life cycle events such as breeding and migration) is mismatched to current climate. Species can potentially respond by altering their phenology, but only if there is sufficient genetic variation or plasticity in their behaviour and development.

Viktoriia Radchuk and colleagues reviewed 10,090 scientific abstracts and extracted data from 71 published studies (representing 17 species in 13 countries) to assess animal responses to climate change, focusing particularly on birds. They find that phenological changes tend to be adaptive to climate change, shifting in the direction favoured by global warming. In contrast, they did not detect consistent shifts in animal morphology in response to climate change.

The authors observed that phenological shifts may alleviate some of the detrimental effects of climate change. However, they find that phenological changes are lagging behind climate changes and calculate that many populations may be lagging too far behind climate change, threatening their continued persistence.

doi: 10.1038/s41467-019-10924-4

「Nature 関連誌注目のハイライト」は、ネイチャー広報部門が報道関係者向けに作成したリリースを翻訳したものです。より正確かつ詳細な情報が必要な場合には、必ず原著論文をご覧ください。

メールマガジンリストの「Nature 関連誌今週のハイライト」にチェックをいれていただきますと、毎週最新のNature 関連誌のハイライトを皆様にお届けいたします。