荒野地帯は,陸上の生物多様性の絶滅のリスクを半減させる
Moreno Di Marco1,2, Simon Ferrier3, Tom D Harwood3
1CSIRO Land and Water, Dutton Park EcoSciences Precinct, Brisbane, Queensland, Australia. moreno.dimarco@gmail.com.
Nature
|September 20, 2019
まとめ
世界の生物多様性の保全には 残された荒野地帯の保護が不可欠です これらの重要な生息地は 種の絶滅を防いでいますが 最も重要な地域は 現在保護されていないため 緊急の保全が求められています
科学分野:
- エコロジー
- 保護生物学
- 環境科学
背景:
- 地球規模での生物多様性の喪失は 人類にとって不可逆的な結果をもたらす大きな課題です
- 生態系の劣化と種の絶滅は 十分に記録されていますが 荒野地帯の作用は 十分に研究されていません
- 残された荒野地帯は 種の消失を防ぐために 極めて重要です
研究 の 目的:
- 生物多様性の持続可能性をモデル化する
- 世界的な生物多様性危機の緩和における 荒野地帯の役割を評価する.
- 国際的な保全計画に不可欠な重要な荒野地域を特定する.
主な方法:
- 生物多様性の持続可能性をモデル化し,生息地状態と空間的な種の構成を統合する.
- 野生と非野生のコミュニティの絶滅のリスクを比較する
- 生物多様性の持続に最も寄与する野生地帯を大陸全体で特定する.
主要な成果:
- 野生の地域では 種の絶滅のリスクを大幅に減らし 野生以外の地域と比較して 種の絶滅のリスクは半分以下です
- 生物多様性の持続に最も寄与する主要な荒野地域は,すべての大陸で特定されました.
- 被害が大きいこの荒野地帯は 保護の度合いが非常に低いのです
結論:
- 残った荒野地帯の保全は 国際的な保全アジェンダにとって不可欠です
- 保護が不十分で 影響が大きい荒野地帯の 標的型保護は緊急に必要である.
- 生物多様性の持続性を 長期的に確保するために 劣化した環境の回復とともに 野生の保護を優先しなければなりません
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