Drought intensity and duration interact to magnify losses in primary productivity
As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with constant or diminishing reductions in productivity as drought duration increases. We quantified the comb...
| Autores principales: | , , , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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American Association for the Advancement of Science (AAAS)
2025
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/24450 https://www.science.org/doi/10.1126/science.ads8144 https://doi.org/10.1126/science.ads8144 |
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| author | Ohlert, Timothy J. Smith, Melinda D. Collins, Scott L. Knapp, Alan K. Dukes, Jeffrey S. Sala, Osvaldo E. Wilkins, Kate D. Munson, Seth M. Anderson, Maggie I. Avolio, Meghan L. Peri, Pablo Luis Zuo, Xiaoan |
| author_browse | Anderson, Maggie I. Avolio, Meghan L. Collins, Scott L. Dukes, Jeffrey S. Knapp, Alan K. Munson, Seth M. Ohlert, Timothy J. Peri, Pablo Luis Sala, Osvaldo E. Smith, Melinda D. Wilkins, Kate D. Zuo, Xiaoan |
| author_facet | Ohlert, Timothy J. Smith, Melinda D. Collins, Scott L. Knapp, Alan K. Dukes, Jeffrey S. Sala, Osvaldo E. Wilkins, Kate D. Munson, Seth M. Anderson, Maggie I. Avolio, Meghan L. Peri, Pablo Luis Zuo, Xiaoan |
| author_sort | Ohlert, Timothy J. |
| collection | INTA Digital |
| description | As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with constant or diminishing reductions in productivity as drought duration increases. We quantified the combined effects of drought duration and intensity on aboveground productivity in 74 grasslands and shrublands distributed globally. Ecosystem acclimation with multiyear drought was observed overall, except when droughts were extreme (i.e., ≤1-in-100-year likelihood of occurrence). Productivity losses after four consecutive years of extreme drought increased by ~2.5-fold compared with those of the first year. These results portend a foundational shift in ecosystem behavior if drought duration and intensity increase, from maintenance of reduced functioning over time to progressive and profound losses of productivity when droughts are extreme. |
| format | Artículo |
| id | INTA24450 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | American Association for the Advancement of Science (AAAS) |
| publisherStr | American Association for the Advancement of Science (AAAS) |
| record_format | dspace |
| spelling | INTA244502025-11-04T13:54:19Z Drought intensity and duration interact to magnify losses in primary productivity Ohlert, Timothy J. Smith, Melinda D. Collins, Scott L. Knapp, Alan K. Dukes, Jeffrey S. Sala, Osvaldo E. Wilkins, Kate D. Munson, Seth M. Anderson, Maggie I. Avolio, Meghan L. Peri, Pablo Luis Zuo, Xiaoan Primary Productivity Drought Grasslands Scrublands Productividad Primaria Sequía Praderas Tierra de Matorral Aboveground Productivity Ecosystem Acclimation Extreme Drought Losses of Productivity Productividad sobre el Suelo Arbustal Aclimatación del Ecosistema Sequía Extrema Perdidas de Productividad Potrok Aike As droughts become longer and more intense, impacts on terrestrial primary productivity are expected to increase progressively. Yet, some ecosystems appear to acclimate to multiyear drought, with constant or diminishing reductions in productivity as drought duration increases. We quantified the combined effects of drought duration and intensity on aboveground productivity in 74 grasslands and shrublands distributed globally. Ecosystem acclimation with multiyear drought was observed overall, except when droughts were extreme (i.e., ≤1-in-100-year likelihood of occurrence). Productivity losses after four consecutive years of extreme drought increased by ~2.5-fold compared with those of the first year. These results portend a foundational shift in ecosystem behavior if drought duration and intensity increase, from maintenance of reduced functioning over time to progressive and profound losses of productivity when droughts are extreme. EEA Santa Cruz Fil: Ohlert, Timothy J. Colorado State University. Department of Biology; Estados Unidos Fil: Ohlert, Timothy J. Colorado State University. Graduate Degree Program in Ecology; Estados Unidos Fil: Smith, Melinda D. Colorado State University. Department of Biology; Estados Unidos Fil: Smith, Melinda D. Colorado State University. Graduate Degree Program in Ecology; Estados Unidos Fil: Collins, Scott L. University of New Mexico. Department of Biology; Estados Unidos Fil: Knapp, Alan K. Colorado State University. Department of Biology; Estados Unidos Fil: Knapp, Alan K. Colorado State University. Graduate Degree Program in Ecology; Estados Unidos Fil: Dukes, Jeffrey S. Carnegie Institution for Science. Department of Global Ecology; Estados Unidos Fil: Sala, Osvaldo E. Arizona State University. School of Life Sciences; Estados Unidos Fil: Wilkins, Kate D. Denver Zoo Conservation Alliance; Estados Unidos Fil: Munson, Seth M. Southwest Biological Science Center. US Geological Survey; Estados Unidos Fil: Anderson, Maggie I. University of Minnesota. Department of Ecology, Evolution, and Behavior; Estados Unidos Fil: Avolio, Meghan L. Johns Hopkins University. Morton K. Blaustein Department of Earth and Planetary Sciences; Estados Unidos Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Zuo, Xiaoan. Chinese Academy of Sciences. Northwest Institute of Eco-Environment and Resources. State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Urat Desert-grassland Research Station. Lanzhou; China. 2025-11-04T13:45:48Z 2025-11-04T13:45:48Z 2025-10-16 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/24450 https://www.science.org/doi/10.1126/science.ads8144 Ohlert T.; Smith M.D.; Collins S.L.; Knapp A.K.; Dukes J.S.; Sala O.; Wilkins K.; Munson S.M.; (…); Anderson M.I.; Peri P.L.; et al. (2025) Drought intensity and duration interact to magnify losses in primary productivity. Science 390 (6770): 284-289. https://www.science.org/doi/10.1126/science.ads8144 0036-8075 https://doi.org/10.1126/science.ads8144 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf American Association for the Advancement of Science (AAAS) Science 390 (6770) : 284-289. (October 2025) |
| spellingShingle | Primary Productivity Drought Grasslands Scrublands Productividad Primaria Sequía Praderas Tierra de Matorral Aboveground Productivity Ecosystem Acclimation Extreme Drought Losses of Productivity Productividad sobre el Suelo Arbustal Aclimatación del Ecosistema Sequía Extrema Perdidas de Productividad Potrok Aike Ohlert, Timothy J. Smith, Melinda D. Collins, Scott L. Knapp, Alan K. Dukes, Jeffrey S. Sala, Osvaldo E. Wilkins, Kate D. Munson, Seth M. Anderson, Maggie I. Avolio, Meghan L. Peri, Pablo Luis Zuo, Xiaoan Drought intensity and duration interact to magnify losses in primary productivity |
| title | Drought intensity and duration interact to magnify losses in primary productivity |
| title_full | Drought intensity and duration interact to magnify losses in primary productivity |
| title_fullStr | Drought intensity and duration interact to magnify losses in primary productivity |
| title_full_unstemmed | Drought intensity and duration interact to magnify losses in primary productivity |
| title_short | Drought intensity and duration interact to magnify losses in primary productivity |
| title_sort | drought intensity and duration interact to magnify losses in primary productivity |
| topic | Primary Productivity Drought Grasslands Scrublands Productividad Primaria Sequía Praderas Tierra de Matorral Aboveground Productivity Ecosystem Acclimation Extreme Drought Losses of Productivity Productividad sobre el Suelo Arbustal Aclimatación del Ecosistema Sequía Extrema Perdidas de Productividad Potrok Aike |
| url | http://hdl.handle.net/20.500.12123/24450 https://www.science.org/doi/10.1126/science.ads8144 https://doi.org/10.1126/science.ads8144 |
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