Browsing by Author "Hughes, Frederic M."

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    Drivers of woody dominance across global drylands
    (American Association for the Advancement of Science, 2024-10-11) Biancari, Lucio; Aguiar, Martín R.; Eldridge, David J.; Oñatibia, Gastón R.; Le Bagousse-Pinguet, Yoann; Saiz, Hugo; Gross, Nicolas; Austin, Amy T.; Ochoa, Victoria; Gozalo, Beatriz; Asensio, Sergio; Guirado, Emilio; Valencia, Enrique; Berdugo, Miguel; Plaza, César; Martínez-Valderrama, Jaime; Mendoza, Betty J.; García-Gómez, Miguel; Abedi, Mehdi; Ahumada, Rodrigo J.; Alcántara, Julio M.; Amghar, Fateh; Anadón, José D.; Aramayo, Valeria; Arredondo, Tulio; Bader, Maaike Y.; Bahalkeh, Khadijeh; Ben Salem, Farah; Blaum, Niels; Boldgiv, Bazartseren; Bowker, Matthew; Branquinho, Cristina; Bu, Chongfeng; Byambatsogt, Batbold; Calvo, Dianela A.; Castillo Monroy, Andrea P.; Castro, Helena; Castro-Quezada, Patricio; Chibani, Roukaya; Conceição, Abel A.; Currier, Courtney M.; Donoso, David A.; Dougill, Andrew; Ejtehadi, Hamid; Espinosa, Carlos I.; Fajardo, Alex; Farzam, Mohammad; Ferrante, Daniela; Fraser, Lauchlan H.; Gaitán, Juan J.; Gherardi, Laureano A.; Gusmán-Montalván, Elizabeth; Hernández-Hernández, Rosa M.; Hölzel, Norbert; Huber-Sannwald, Elisabeth; Hughes, Frederic M.; Jadán, Oswaldo; Jeltsch, Florian; Jentsch, Anke; Ju, Mengchen; Kaseke, Kudzai F.; Kindermann, Liana; Köbel, Melanie; le Roux, Peter C.; Liancourt, Pierre; Linstädter, Anja; Liu, Jushan; Louw, Michelle A.; Maggs-Kölling, Gillian; Malam Issa, Oumarou; Marais, Eugene; Margerie, Pierre; Messeder, João Vitor S.; Mora, Juan P.; Moreno, Gerardo; Munson, Seth M.; Oliva, Gabriel; Pueyo, Yolanda; Quiroga, R. Emiliano; Reed, Sasha C.; Rey, Pedro J.; Rodríguez, Alexandra; Rodríguez, Laura B.; Rolo, Víctor; Ruppert, Jan C.; Sala, Osvaldo; Salah, Ayman; Stavi, Ilan; Stephens, Colton R. A.; Swemmer, Anthony M.; Teixido, Alberto L.; Thomas, Andrew D.; Throop, Heather L.; Tielbörger, Katja; Travers, Samantha K.; van den Brink, Liesbeth; Wagner, Viktoria; Wamiti, Wanyoike; Wang, Deli; Wang, Lixin; Wolff, Peter; Yahdjian, Laura; Zaady, Eli; Maestre, Fernando T.; Earth and Environmental Sciences, School of Science
    Increases in the abundance of woody species have been reported to affect the provisioning of ecosystem services in drylands worldwide. However, it is virtually unknown how multiple biotic and abiotic drivers, such as climate, grazing, and fire, interact to determine woody dominance across global drylands. We conducted a standardized field survey in 304 plots across 25 countries to assess how climatic features, soil properties, grazing, and fire affect woody dominance in dryland rangelands. Precipitation, temperature, and grazing were key determinants of tree and shrub dominance. The effects of grazing were determined not solely by grazing pressure but also by the dominant livestock species. Interactions between soil, climate, and grazing and differences in responses to these factors between trees and shrubs were key to understanding changes in woody dominance. Our findings suggest that projected changes in climate and grazing pressure may increase woody dominance in drylands, altering their structure and functioning.
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    Grazing and ecosystem service delivery in global drylands
    (American Association for the Advancement of Science, 2022-11-24) Maestre, Fernando T.; Bagousse-Pinguet, Yoann Le; Delgado-Baquerizo, Manuel; Eldridge , David J.; Saiz, Hugo; Berdugo, Miguel; Gozalo, Beatriz; Ochoa, Victoria; Guirado, Emilio; García-Gómez, Miguel; Valencia, Enrique; Gaitán, Juan J.; Asensio, Sergio; Mendoza, Betty J.; Plaza, César; Díaz-Martínez, Paloma; Rey, Ana; Hu, Hang-Wei; He, Ji-Zheng; Wang, Jun-Tao; Lehmann, Anika; Rillig, Matthias C.; Cesarz, Simone; Esenhauer, Nico; Martínez-Valderrama, Jaime; Moreno-Jiménez, Eduardo; Sala, Osvaldo; Abedi, Mehdi; Ahmadian, Negar; Alados, Concepción L.; Aramayo, Valeria; Amghar, Fateh; Arredondo, Tulio; Ahumada, Rodrigo J.; Bahalkeh, Khadijeh; Ben Salem , Farah; Blaum, Niels; Boldgiv, Bazartseren; Bowker, Matthew A.; Bran, Donaldo; Bu, Chongfeng; Canessa, Rafaella; Castillo-Monroy, Andrea P.; Castro, Helena; Castro, Ignacio; Castro-Quezada, Patricio; Chibani, Roukaya; Conceição , Abel A.; Currier, Courtney M.; Darrouzet-Nardi, Anthony; Deák, Balázs; Donoso, David A.; Dougill, Andrew J.; Durán, Jorge; Erdenetsetseg, Batdelger; Espinosa, Carlos I.; Fajardo, Alex; Farzam, Mohammad; Ferrante, Daniela; Frank, Anke S. K.; Fraser, Lauchlan H.; Gherardi, Laureano A.; Greenville, Aaron C.; Guerra, Carlos A.; Gusmán-Montalvan, Elizabeth; Hernández-Hernández, Rosa M.; Hölzel, Norbert; Huber-Sannwald, Elisabeth; Hughes, Frederic M.; Jadán-Maza, Oswaldo; Jeltsch, Florian; Jentsch, Anke; Kaseke, Kudzai F.; Köbel, Melanie; Koopman, Jessica E.; Leder, Cintia V.; Linstädter, Anja; Le Roux, Peter C.; Li, Xinkai; Liancourt, Pierre; Liu, Jushan; Louw, Michelle A.; Maggs-Kölling, Gillian; Makhalanyane, Thulani P.; Malam Issa, Oumarou; Manzaneda, Antonio J.; Marais, Eugene; Mora, Juan P.; Moreno, Gerardo; Munson, Seth M.; Nunes, Alice; Oliva, Gabriel; Oñatibia, Gastón R.; Peter, Guadalupe; Pivari, Marco O. D.; Pueyo , Yolanda; Quiroga, R. Emiliano; Rahmanian, Soroor; Reed, Sasha C.; Rey, Pedro J.; Richard, Benoit; Rodríguez, Alexandra; Rolo, Víctor; Rubalcaba, Juan G.; Ruppert, Jan C.; Salah, Ayman; Schuchardt, Max A.; Spann, Sedona; Stavi, Ilan; Stephens, Colton R. A.; Swemmer, Anthony M.; Teixido, Alberto L.; Thomas , Andrew D.; Throop, Heather L.; Tielbörger, Katja; Travers, Samantha; Val, James; Valkó, Orsolya; Van Den Brink , Liesbeth; Ayuso, Sergio Valesco; Velbert, Frederike; Wamiti, Wanyoike; Wang, Deli; Wang, Lixin; Wardel, Glenda M.; Yahdjian, Laura; Zaady, Eli; Zhang, Yuanming; Zhou, Xiaobing; Singh, Brajesh K.; Gross, Nicolas; Earth and Environmental Sciences, School of Science
    Grazing represents the most extensive use of land worldwide. Yet its impacts on ecosystem services remain uncertain because pervasive interactions between grazing pressure, climate, soil properties, and biodiversity may occur but have never been addressed simultaneously. Using a standardized survey at 98 sites across six continents, we show that interactions between grazing pressure, climate, soil, and biodiversity are critical to explain the delivery of fundamental ecosystem services across drylands worldwide. Increasing grazing pressure reduced ecosystem service delivery in warmer and species-poor drylands, whereas positive effects of grazing were observed in colder and species-rich areas. Considering interactions between grazing and local abiotic and biotic factors is key for understanding the fate of dryland ecosystems under climate change and increasing human pressure.