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Cropland expansion in the United States produces marginal yields at high costs to wildlife.
Lark, Tyler J; Spawn, Seth A; Bougie, Matthew; Gibbs, Holly K.
Afiliación
  • Lark TJ; Center for Sustainability and the Global Environment (SAGE), Nelson Institute for Environmental Studies, University of Wisconsin-Madison, 1710 University Ave, Madison, WI, 53726, USA. lark@wisc.edu.
  • Spawn SA; DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA. lark@wisc.edu.
  • Bougie M; Center for Sustainability and the Global Environment (SAGE), Nelson Institute for Environmental Studies, University of Wisconsin-Madison, 1710 University Ave, Madison, WI, 53726, USA.
  • Gibbs HK; DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA.
Nat Commun ; 11(1): 4295, 2020 09 09.
Article en En | MEDLINE | ID: mdl-32908130
ABSTRACT
Recent expansion of croplands in the United States has caused widespread conversion of grasslands and other ecosystems with largely unknown consequences for agricultural production and the environment. Here we assess annual land use change 2008-16 and its impacts on crop yields and wildlife habitat. We find that croplands have expanded at a rate of over one million acres per year, and that 69.5% of new cropland areas produced yields below the national average, with a mean yield deficit of 6.5%. Observed conversion infringed upon high-quality habitat that, relative to unconverted land, had provided over three times higher milkweed stem densities in the Monarch butterfly Midwest summer breeding range and 37% more nesting opportunities per acre for waterfowl in the Prairie Pothole Region of the Northern Great Plains. Our findings demonstrate a pervasive pattern of encroachment into areas that are increasingly marginal for production, but highly significant for wildlife, and suggest that such tradeoffs may be further amplified by future cropland expansion.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Productos Agrícolas / Conservación de los Recursos Naturales / Costos y Análisis de Costo / Producción de Cultivos / Animales Salvajes Tipo de estudio: Health_economic_evaluation Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Productos Agrícolas / Conservación de los Recursos Naturales / Costos y Análisis de Costo / Producción de Cultivos / Animales Salvajes Tipo de estudio: Health_economic_evaluation Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos