Balmford Andrew, Bateman Ian J, Eyres Alison, Swinfield Tom, Ball Thomas S
Department of Zoology, University of Cambridge, Cambridge, UK.
Conservation Research Institute, University of Cambridge, Cambridge, UK.
Philos Trans R Soc Lond B Biol Sci. 2025 Jan 9;380(1917):20230216. doi: 10.1098/rstb.2023.0216.
Food production does more damage to wild species than any other sector of human activity, yet how best to limit its growing impact is greatly contested. Reviewing progress to date in interventions that encourage less damaging diets or cut food loss and waste, we conclude that both are essential but far from sufficient. In terms of production, field studies from five continents quantifying the population-level impacts of land sharing, land sparing, intermediate and mixed approaches for almost 2000 individually assessed species show that implementing high-yield farming to spare natural habitats consistently outperforms land sharing, particularly for species of highest conservation concern. Sparing also offers considerable potential for mitigating climate change. Delivering land sparing nevertheless raises several important challenges-in particular, identifying and promoting higher yielding farm systems that are less environmentally harmful than current industrial agriculture, and devising mechanisms to limit rebound effects and instead tie yield gains to habitat conservation. Progress will depend on conservationists forging novel collaborations with the agriculture sector. While this may be challenging, we suggest that without it there is no realistic prospect of slowing biodiversity loss.This article is part of the discussion meeting issue 'Bending the curve towards nature recovery: building on Georgina Mace's legacy for a biodiverse future'.
粮食生产对野生物种造成的破坏比人类活动的任何其他领域都要大,然而,如何最好地限制其日益增长的影响却存在很大争议。回顾迄今为止在鼓励采用危害较小的饮食或减少食物损失和浪费的干预措施方面取得的进展,我们得出结论,这两者都是必不可少的,但远远不够。在生产方面,来自五大洲的实地研究对近2000个单独评估的物种的土地共享、土地节约、中间和混合方法的种群水平影响进行了量化,结果表明,实施高产农业以保护自然栖息地始终优于土地共享,特别是对于最受保护关注的物种。节约土地也为缓解气候变化提供了巨大潜力。然而,实现土地节约也带来了几个重要挑战——特别是,识别和推广比当前工业化农业对环境危害更小的高产农业系统,以及设计机制来限制反弹效应,而是将产量增长与栖息地保护联系起来。进展将取决于保护主义者与农业部门建立新的合作关系。虽然这可能具有挑战性,但我们认为,没有这种合作,就没有减缓生物多样性丧失的现实前景。本文是“向自然恢复弯曲曲线:基于乔治娜·梅斯的遗产实现生物多样性未来”讨论会议题的一部分。