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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Bird communities in future bioenergy landscapes of the Upper Midwest
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Bird communities in future bioenergy landscapes of the Upper Midwest

机译：中西部上层生物能源景观中的鸟类群落

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摘要

Mandates for biofuel and renewable electricity are creating incentives for biomass production in agricultural landscapes of the Upper Midwest. Different bioenergy crops are expected to vary in their effects on biodiversity and ecosystem services. Here, we use data from the North American Breeding Bird Survey to forecast the impact of potential bioenergy crops on avian species richness and the number of bird species of conservation concern in Midwestern landscapes. Our analysis suggests that expanded production of annual bioenergy crops (e.g., corn and soybeans) on marginal land will lead to declines in avian richness between 7% and 65% across 20% of the region, and will make managing at-risk species more challenging. In contrast, replacement of annual with diverse perennial bioenergy crops (e.g., mixed grasses and forbs) is expected to bring increases in avian richness between 12% and 207% across 20% of the region, and possibly aid the recovery of several species of conservation concern.
机译：对生物燃料和可再生电力的授权正在激励中西部上农业景观的生物质生产。预计不同的生物能源作物对生物多样性和生态系统服务的影响会有所不同。在这里，我们使用来自北美繁殖鸟类调查的数据来预测潜在的生物能源作物对禽类物种丰富性的影响以及中西部地貌景观中值得关注的鸟类种类的数量。我们的分析表明，边际土地上年度生物能源作物（例如玉米和大豆）的扩大生产将导致该地区20％的禽类丰富度下降7％至65％，并使高风险物种的管理更具挑战性。相反，用多种多年生生物能源作物（例如，混合草和Forbs）替代一年生植物，预计将使该地区20％的禽类丰富度增加12％至207％，并可能有助于恢复几种保护物种关心。

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