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Main Authors:	Ohlert, Timothy, Smith, Melinda D, Collins, Scott L, Knapp, Alan K, Dukes, Jeffrey S, Sala, Osvaldo, Wilkins, Kate D, Munson, Seth M, Anderson, Maggie I, Avolio, Meghan L, Chen, Anping, Hayden, Meghan T, Holdrege, Martin C, Slette, Ingrid J, Wilfahrt, Peter, Beier, Claus, Fraser, Lauchlan H, Jentsch, Anke, Loik, Michael E, Luo, Yiqi, Maestre, Fernando T, Phillips, Richard P, Power, Sally A, Yahdjian, Laura, Yu, Qiang, Chen, Angel, Felton, Andrew J, Gherardi, Laureano A, Lyon, Nicholas J, Abdoli, Hamed, Abedi, Mehdi, Alberti, Juan, Arroyo, Antonio I, Asbjornsen, Heidi, Auge, Harald, Bachle, Seton, Bahn, Michael, Bartholomew, David C, Batbaatar, Amgaa, Bauerle, Taryn L, Beard, Karen H, Behn, Kai, Beil, Ilka, Biancari, Lucio, Blindow, Irmgard, Bondaruk, Viviana Florencia, Borer, Elizabeth T, Bork, Edward W, Bruschetti, Carlos Martin, Byrne, Kerry M, Cahill, James F, Calvo, Dianela A, Carbognani, Michele, Carlyle, Cameron N, Castillioni, Karen, Castillo-Garcia, Miguel, Chandregowda, Manjunatha H, Chang, Scott X, Chieppa, Jeff, Churchill, Amber C, Cianciaruso, Marcus Vinicius, Cordeiro, Amanda L, Cousins, Sara A O, Cusack, Daniela F, Dahlke, Sven, Daleo, Pedro, Dietterich, Lee H, Dubbert, Maren, Eisenhauer, Nico, Forte, T'ai G W, Funk, Flavia A, Galiano, Darcy, Greenville, Aaron C, Han, Liebao, Haugum, Siri Vatsø, Hautier, Yann, Hector, Andy, Henry, Hugh A L, Hoss, Daniela, Isbell, Forest, Jordan, Samuel E, Ke, Yuguang, Kelly, Eugene F, Koerner, Sally E, Kreyling, Juergen, Kröel-Dulay, György, Kröpfl, Alicia I, Kübert, Angelika, Kulmatiski, Andrew, Lamb, Eric G, Larsen, Klaus Steenberg, Lee, Steven, Limbu, Smriti Pehim, Linstädter, Anja, Liu, Shirong, Longo, Grisel, Loydi, Alejandro, Luan, Junwei, Lubbe, F Curtis, Malyshev, Andrey V, McIntire, Cameron D, Metcalfe, Daniel B, Mokoka, Malesela Vincent, Mori, Akira S, Mudongo, Edwin, Newman, Gregory S, Nielsen, Uffe N, Ochoa-Hueso, Raúl, O'Connor, Rory C, Ogaya, Romà, Oñatibia, Gastón R, Orbán, Ildikó, Osborne, Brooke B, Otfinowski, Rafael, Pärtel, Meelis, Pascual, Jesús, Peñuelas, Josep, Peri, Pablo L, Pescador, David S, Peter, Guadalupe, Petraglia, Alessandro, Picon-Cochard, Catherine, Pillar, Valério D, Piñeiro-Guerra, Juan M, Ploughe, Laura Weber, Plowes, Robert M, Portales-Reyes, Cristy, Prober, Suzanne M, Pueyo, Yolanda, Rahmati, Golsa, Reed, Sasha C, Rodríguez, Dana Aylén, Rogers, William E, Roscher, Christiane, Rowley, David W, Sánchez, Ana M, Santos, Bráulio A, Schellenberg, Michael P, Scherer-Lorenzen, Michael, Seabloom, Eric W, Shen, Ruonan, Shi, Baoku, Souza, Lara, Stampfli, Andreas, Standish, Rachel J, Sternberg, Marcelo, Sun, Wei, Sünnemann, Marie, Tedder, Michelle, Terry, Tyson J, Thorvaldsen, Pål, Tielbörger, Katja, Tissink, Maud, Vadeboncoeur, Matthew A, Valdecantos, Alejandro, van den Brink, Liesbeth, Vandvik, Vigdis, Velle, Liv Guri, Wanke, Svenja, Wardle, Glenda M, Wei, Cunzheng, Werner, Christiane, Wiehl, Georg, Williams, Jennifer L, Wolf, Amelia A, Wu, Honghui, Xu, Chong, Yang, Xuechen, Yang, Yadong, Yost, Jenifer L, Young, Alyssa L, Yue, Ping, Zeberio, Juan M, Zeiter, Michaela, Zhang, Haiyang, Zhu, Juntao, Zuo, Xiaoan
Format:	Artículo científico
Language:	en
Published:	Science (New York, N.Y.) 2025
Subjects:	Droughts Grassland Acclimatization Ecosystem Time Factors Biomass
Online Access:	https://pubmed.ncbi.nlm.nih.gov/41100624/
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Table of Contents:

Drought intensity and duration interact to magnify losses in primary productivity. Ohlert, Timothy Smith, Melinda D Collins, Scott L Knapp, Alan K Dukes, Jeffrey S Sala, Osvaldo Wilkins, Kate D Munson, Seth M Anderson, Maggie I Avolio, Meghan L Chen, Anping Hayden, Meghan T Holdrege, Martin C Slette, Ingrid J Wilfahrt, Peter Beier, Claus Fraser, Lauchlan H Jentsch, Anke Loik, Michael E Luo, Yiqi Maestre, Fernando T Phillips, Richard P Power, Sally A Yahdjian, Laura Yu, Qiang Chen, Angel Felton, Andrew J Gherardi, Laureano A Lyon, Nicholas J Abdoli, Hamed Abedi, Mehdi Alberti, Juan Arroyo, Antonio I Asbjornsen, Heidi Auge, Harald Bachle, Seton Bahn, Michael Bartholomew, David C Batbaatar, Amgaa Bauerle, Taryn L Beard, Karen H Behn, Kai Beil, Ilka Biancari, Lucio Blindow, Irmgard Bondaruk, Viviana Florencia Borer, Elizabeth T Bork, Edward W Bruschetti, Carlos Martin Byrne, Kerry M Cahill, James F Calvo, Dianela A Carbognani, Michele Carlyle, Cameron N Castillioni, Karen Castillo-Garcia, Miguel Chandregowda, Manjunatha H Chang, Scott X Chieppa, Jeff Churchill, Amber C Cianciaruso, Marcus Vinicius Cordeiro, Amanda L Cousins, Sara A O Cusack, Daniela F Dahlke, Sven Daleo, Pedro Dietterich, Lee H Dubbert, Maren Eisenhauer, Nico Forte, T'ai G W Funk, Flavia A Galiano, Darcy Greenville, Aaron C Han, Liebao Haugum, Siri Vatsø Hautier, Yann Hector, Andy Henry, Hugh A L Hoss, Daniela Isbell, Forest Jordan, Samuel E Ke, Yuguang Kelly, Eugene F Koerner, Sally E Kreyling, Juergen Kröel-Dulay, György Kröpfl, Alicia I Kübert, Angelika Kulmatiski, Andrew Lamb, Eric G Larsen, Klaus Steenberg Lee, Steven Limbu, Smriti Pehim Linstädter, Anja Liu, Shirong Longo, Grisel Loydi, Alejandro Luan, Junwei Lubbe, F Curtis Malyshev, Andrey V McIntire, Cameron D Metcalfe, Daniel B Mokoka, Malesela Vincent Mori, Akira S Mudongo, Edwin Newman, Gregory S Nielsen, Uffe N Ochoa-Hueso, Raúl O'Connor, Rory C Ogaya, Romà Oñatibia, Gastón R Orbán, Ildikó Osborne, Brooke B Otfinowski, Rafael Pärtel, Meelis Pascual, Jesús Peñuelas, Josep Peri, Pablo L Pescador, David S Peter, Guadalupe Petraglia, Alessandro Picon-Cochard, Catherine Pillar, Valério D Piñeiro-Guerra, Juan M Ploughe, Laura Weber Plowes, Robert M Portales-Reyes, Cristy Prober, Suzanne M Pueyo, Yolanda Rahmati, Golsa Reed, Sasha C Rodríguez, Dana Aylén Rogers, William E Roscher, Christiane Rowley, David W Sánchez, Ana M Santos, Bráulio A Schellenberg, Michael P Scherer-Lorenzen, Michael Seabloom, Eric W Shen, Ruonan Shi, Baoku Souza, Lara Stampfli, Andreas Standish, Rachel J Sternberg, Marcelo Sun, Wei Sünnemann, Marie Tedder, Michelle Terry, Tyson J Thorvaldsen, Pål Tielbörger, Katja Tissink, Maud Vadeboncoeur, Matthew A Valdecantos, Alejandro van den Brink, Liesbeth Vandvik, Vigdis Velle, Liv Guri Wanke, Svenja Wardle, Glenda M Wei, Cunzheng Werner, Christiane Wiehl, Georg Williams, Jennifer L Wolf, Amelia A Wu, Honghui Xu, Chong Yang, Xuechen Yang, Yadong Yost, Jenifer L Young, Alyssa L Yue, Ping Zeberio, Juan M Zeiter, Michaela Zhang, Haiyang Zhu, Juntao Zuo, Xiaoan Droughts Grassland Acclimatization Ecosystem Time Factors Biomass 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.

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