Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis
Managing agricultural landscapes to support biodiversity conservation requires profound structural changes worldwide. Often, discussions are centered on management at the field level. However, a wide and growing body of evidence calls for zooming out and targeting agricultural policies, research, an...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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National Academy of Sciences
2022
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| Acceso en línea: | https://hdl.handle.net/10568/125210 |
| _version_ | 1855525119350276096 |
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| author | Estrada-Carmona, Natalia Sánchez, Andrea C. Remans, Roseline Jones, Sarah K. |
| author_browse | Estrada-Carmona, Natalia Jones, Sarah K. Remans, Roseline Sánchez, Andrea C. |
| author_facet | Estrada-Carmona, Natalia Sánchez, Andrea C. Remans, Roseline Jones, Sarah K. |
| author_sort | Estrada-Carmona, Natalia |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Managing agricultural landscapes to support biodiversity conservation requires profound structural changes worldwide. Often, discussions are centered on management at the field level. However, a wide and growing body of evidence calls for zooming out and targeting agricultural policies, research, and interventions at the landscape level to halt and reverse the decline in biodiversity, increase biodiversity-mediated ecosystem services in agricultural landscapes, and improve the resilience and adaptability of these ecosystems. We conducted the most comprehensive assessment to date on landscape complexity effects on nondomesticated terrestrial biodiversity through a meta-analysis of 1,134 effect sizes from 157 peer-reviewed articles. Increasing landscape complexity through changes in composition, configuration, or heterogeneity significatively and positively affects biodiversity. More complex landscapes host more biodiversity (richness, abundance, and evenness) with potential benefits to sustainable agricultural production and conservation, and effects are likely underestimated. The few articles that assessed the combined contribution of linear (e.g., hedgerows) and areal (e.g., woodlots) elements resulted in a near-doubling of the effect sizes (i.e., biodiversity level) compared to the dominant number of studies measuring these elements separately. Similarly, positive effects on biodiversity are stronger in articles monitoring biodiversity for at least 2 y compared to the dominant 1-y monitoring efforts. Besides, positive and stronger effects exist when monitoring occurs in nonoverlapping landscapes, highlighting the need for long-term and robustly designed monitoring efforts. Living in harmony with nature will require shifting paradigms toward valuing and promoting multifunctional agriculture at the farm and landscape levels with a research agenda that untangles complex agricultural landscapes’ contributions to people and nature under current and future conditions. |
| format | Journal Article |
| id | CGSpace125210 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | National Academy of Sciences |
| publisherStr | National Academy of Sciences |
| record_format | dspace |
| spelling | CGSpace1252102025-11-11T18:48:51Z Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis Estrada-Carmona, Natalia Sánchez, Andrea C. Remans, Roseline Jones, Sarah K. agricultural land management biodiversity landscape approaches gestión de tierras agricolas biodiversidad enfoque de paisajes Managing agricultural landscapes to support biodiversity conservation requires profound structural changes worldwide. Often, discussions are centered on management at the field level. However, a wide and growing body of evidence calls for zooming out and targeting agricultural policies, research, and interventions at the landscape level to halt and reverse the decline in biodiversity, increase biodiversity-mediated ecosystem services in agricultural landscapes, and improve the resilience and adaptability of these ecosystems. We conducted the most comprehensive assessment to date on landscape complexity effects on nondomesticated terrestrial biodiversity through a meta-analysis of 1,134 effect sizes from 157 peer-reviewed articles. Increasing landscape complexity through changes in composition, configuration, or heterogeneity significatively and positively affects biodiversity. More complex landscapes host more biodiversity (richness, abundance, and evenness) with potential benefits to sustainable agricultural production and conservation, and effects are likely underestimated. The few articles that assessed the combined contribution of linear (e.g., hedgerows) and areal (e.g., woodlots) elements resulted in a near-doubling of the effect sizes (i.e., biodiversity level) compared to the dominant number of studies measuring these elements separately. Similarly, positive effects on biodiversity are stronger in articles monitoring biodiversity for at least 2 y compared to the dominant 1-y monitoring efforts. Besides, positive and stronger effects exist when monitoring occurs in nonoverlapping landscapes, highlighting the need for long-term and robustly designed monitoring efforts. Living in harmony with nature will require shifting paradigms toward valuing and promoting multifunctional agriculture at the farm and landscape levels with a research agenda that untangles complex agricultural landscapes’ contributions to people and nature under current and future conditions. 2022-09-20 2022-10-28T08:55:56Z 2022-10-28T08:55:56Z Journal Article https://hdl.handle.net/10568/125210 en Open Access application/pdf National Academy of Sciences Estrada Carmona, N.; Sánchez, A.C.; Remans, R.; Jones, S.K. (2022) Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis. PNAS 119 (38) e2203385119 10 p. ISSN: 0369-8203 |
| spellingShingle | agricultural land management biodiversity landscape approaches gestión de tierras agricolas biodiversidad enfoque de paisajes Estrada-Carmona, Natalia Sánchez, Andrea C. Remans, Roseline Jones, Sarah K. Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title | Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title_full | Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title_fullStr | Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title_full_unstemmed | Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title_short | Complex agricultural landscapes host more biodiversity than simple ones: A global meta-analysis |
| title_sort | complex agricultural landscapes host more biodiversity than simple ones a global meta analysis |
| topic | agricultural land management biodiversity landscape approaches gestión de tierras agricolas biodiversidad enfoque de paisajes |
| url | https://hdl.handle.net/10568/125210 |
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