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1. Vulnerability of mineral-associated soil organic carbon to climate across global drylands

Author

Díaz-Martínez, Paloma, Maestre, Fernando T., Moreno-Jiménez, Eduardo, Delgado-Baquerizo, Manuel, Eldridge, David J., Saiz, Hugo, Gross, Nicolas, Le Bagousse-Pinguet, Yoann, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Asensio, Sergio, Berdugo, Miguel, Martínez-Valderrama, Jaime, Mendoza, Betty J., García-Gil, Juan C., Zaccone, Claudio, Panettieri, Marco, García-Palacios, Pablo, Fan, Wei, Benavente-Ferraces, Iria, Rey, Ana, Eisenhauer, Nico, Cesarz, Simone, Abedi, Mehdi, Ahumada, Rodrigo J., Alcántara, Julio M., Amghar, Fateh, Aramayo, Valeria, Arroyo, Antonio I., Bahalkeh, Khadijeh, Ben Salem, Farah, Blaum, Niels, Boldgiv, Bazartseren, Bowker, Matthew A., Bran, Donaldo, Branquinho, Cristina, Bu, Chongfeng, Cáceres, Yonatan, Canessa, Rafaella, Castillo-Monroy, Andrea P., Castro, Ignacio, Castro-Quezada, Patricio, Chibani, Roukaya, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Deák, Balázs, Dickman, Christopher R., Donoso, David A., Dougill, Andrew J., Durán, Jorge, Ejtehadi, Hamid, Espinosa, Carlos, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Fraser, Lauchlan H., Gaitán, Juan J., Gusman Montalván, Elizabeth, Hernández-Hernández, Rosa M., von Hessberg, Andreas, Hölzel, Norbert, Huber-Sannwald, Elisabeth, Hughes, Frederic M., Jadán-Maza, Oswaldo, Geissler, Katja, Jentsch, Anke, Ju, Mengchen, Kaseke, Kudzai F., Kindermann, Liana, Koopman, Jessica E., Le Roux, Peter C., Liancourt, Pierre, Linstädter, Anja, Liu, Jushan, Louw, Michelle A., Maggs-Kölling, Gillian, Makhalanyane, Thulani P., Issa, Oumarou Malam, Marais, Eugene, Margerie, Pierre, Mazaneda, Antonio J., McClaran, Mitchel P., Messeder, João Vitor S., Mora, Juan P., Moreno, Gerardo, Munson, Seth M., Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón R., Osborne, Brooke, Peter, Guadalupe, Pueyo, Yolanda, Quiroga, R. Emiliano, Reed, Sasha C., Reyes, Victor M., Rodríguez, Alexandra, Ruppert, Jan C., Sala, Osvaldo, Salah, Ayman, Sebei, Julius, Sloan, Michael, Solongo, Shijirbaatar, Stavi, Ilan, Stephens, Colton R. A., Teixido, Alberto L., Thomas, Andrew D., Throop, Heather L., Tielbörger, Katja, Travers, Samantha, Val, James, Valko, Orsolya, van den Brink, Liesbeth, Velbert, Frederike, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Zeberio, Juan M., Zhang, Yuanming, Zhou, Xiaobing, and Plaza, César

Published
2024
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2. Unforeseen plant phenotypic diversity in a dry and grazed world

Author

Gross, Nicolas, Maestre, Fernando T., Liancourt, Pierre, Berdugo, Miguel, Martin, Raphaël, Gozalo, Beatriz, Ochoa, Victoria, Delgado-Baquerizo, Manuel, Maire, Vincent, Saiz, Hugo, Soliveres, Santiago, Valencia, Enrique, Eldridge, David J., Guirado, Emilio, Jabot, Franck, Asensio, Sergio, Gaitán, Juan J., García-Gómez, Miguel, Martínez, Paloma, Martínez-Valderrama, Jaime, Mendoza, Betty J., Moreno-Jiménez, Eduardo, Pescador, David S., Plaza, César, Pijuan, Ivan Santaolaria, Abedi, Mehdi, Ahumada, Rodrigo J., Amghar, Fateh, Arroyo, Antonio I., Bahalkeh, Khadijeh, Bailey, Lydia, Ben Salem, Farah, Blaum, Niels, Boldgiv, Bazartseren, Bowker, Matthew A., Branquinho, Cristina, van den Brink, Liesbeth, Bu, Chongfeng, Canessa, Rafaella, Castillo-Monroy, Andrea del P., Castro, Helena, Castro, Patricio, Chibani, Roukaya, Conceição, Abel Augusto, Darrouzet-Nardi, Anthony, Davila, Yvonne C., Deák, Balázs, Donoso, David A., Durán, Jorge, Espinosa, Carlos, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Franzese, Jorgelina, Fraser, Lauchlan, Gonzalez, Sofía, Gusman-Montalvan, Elizabeth, Hernández-Hernández, Rosa Mary, Hölzel, Norbert, Huber-Sannwald, Elisabeth, Jadan, Oswaldo, Jeltsch, Florian, Jentsch, Anke, Ju, Mengchen, Kaseke, Kudzai F., Kindermann, Liana, le Roux, Peter, Linstädter, Anja, Louw, Michelle A., Mabaso, Mancha, Maggs-Kölling, Gillian, Makhalanyane, Thulani P., Issa, Oumarou Malam, Manzaneda, Antonio J., Marais, Eugene, Margerie, Pierre, Hughes, Frederic Mendes, Messeder, João Vitor S., Mora, Juan P., Moreno, Gerardo, Munson, Seth M., Nunes, Alice, Oliva, Gabriel, Oñatibia, Gaston R., Peter, Guadalupe, Pueyo, Yolanda, Quiroga, R. Emiliano, Ramírez-Iglesias, Elizabeth, Reed, Sasha C., Rey, Pedro J., Reyes Gómez, Víctor M., Rodríguez, Alexandra, Rolo, Victor, Rubalcaba, Juan G., Ruppert, Jan C., Sala, Osvaldo, Salah, Ayman, Sebei, Phokgedi Julius, Stavi, Ilan, Stephens, Colton, Teixido, Alberto L., Thomas, Andrew D., Throop, Heather L., Tielbörger, Katja, Travers, Samantha, Undrakhbold, Sainbileg, Val, James, Valkó, Orsolya, Velbert, Frederike, Wamiti, Wanyoike, Wang, Lixin, Wang, Deli, Wardle, Glenda M., Wolff, Peter, Yahdjian, Laura, Yari, Reza, Zaady, Eli, Zeberio, Juan Manuel, Zhang, Yuanling, Zhou, Xiaobing, and Le Bagousse-Pinguet, Yoann

Published
2024
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3. Hotspots of biogeochemical activity linked to aridity and plant traits across global drylands

Author

Eldridge, David J., Ding, Jingyi, Dorrough, Josh, Delgado-Baquerizo, Manuel, Sala, Osvaldo, Gross, Nicolas, Le Bagousse-Pinguet, Yoann, Mallen-Cooper, Max, Saiz, Hugo, Asensio, Sergio, Ochoa, Victoria, Gozalo, Beatriz, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Martínez-Valderrama, Jaime, Plaza, César, Abedi, Mehdi, Ahmadian, Negar, Ahumada, Rodrigo J., Alcántara, Julio M., Amghar, Fateh, Azevedo, Luísa, Ben Salem, Farah, Berdugo, Miguel, Blaum, Niels, Boldgiv, Bazartseren, Bowker, Matthew, Bran, Donaldo, Bu, Chongfeng, Canessa, Rafaella, Castillo-Monroy, Andrea P., Castro, Ignacio, Castro-Quezada, Patricio, Cesarz, Simone, Chibani, Roukaya, Conceição, Abel Augusto, Darrouzet-Nardi, Anthony, Davila, Yvonne C., Deák, Balázs, Díaz-Martínez, Paloma, Donoso, David A., Dougill, Andrew David, Durán, Jorge, Eisenhauer, Nico, Ejtehadi, Hamid, Espinosa, Carlos Ivan, Fajardo, Alex, Farzam, Mohammad, Foronda, Ana, Franzese, Jorgelina, Fraser, Lauchlan H., Gaitán, Juan, Geissler, Katja, Gonzalez, Sofía Laura, Gusman-Montalvan, Elizabeth, Hernández, Rosa Mary, Hölzel, Norbert, Hughes, Frederic Mendes, Jadan, Oswaldo, Jentsch, Anke, Ju, Mengchen, Kaseke, Kudzai F., Köbel, Melanie, Lehmann, Anika, Liancourt, Pierre, Linstädter, Anja, Louw, Michelle A., Ma, Quanhui, Mabaso, Mancha, Maggs-Kölling, Gillian, Makhalanyane, Thulani P., Issa, Oumarou Malam, Marais, Eugene, McClaran, Mitchel, Mendoza, Betty, Mokoka, Vincent, Mora, Juan P., Moreno, Gerardo, Munson, Seth, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón R., Osborne, Brooke, Peter, Guadalupe, Pierre, Margerie, Pueyo, Yolanda, Emiliano Quiroga, R., Reed, Sasha, Rey, Ana, Rey, Pedro, Gómez, Víctor Manuel Reyes, Rolo, Víctor, Rillig, Matthias C., le Roux, Peter C., Ruppert, Jan Christian, Salah, Ayman, Sebei, Phokgedi Julius, Sharkhuu, Anarmaa, Stavi, Ilan, Stephens, Colton, Teixido, Alberto L., Thomas, Andrew David, Tielbörger, Katja, Robles, Silvia Torres, Travers, Samantha, Valkó, Orsolya, van den Brink, Liesbeth, Velbert, Frederike, von Heßberg, Andreas, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Zhang, Yuanming, Zhou, Xiaobing, and Maestre, Fernando T.

Published
2024
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5. Author Correction: Hotspots of biogeochemical activity linked to aridity and plant traits across global drylands

Author

Eldridge, David J., Ding, Jingyi, Dorrough, Josh, Delgado-Baquerizo, Manuel, Sala, Osvaldo, Gross, Nicolas, Le Bagousse-Pinguet, Yoann, Mallen-Cooper, Max, Saiz, Hugo, Asensio, Sergio, Ochoa, Victoria, Gozalo, Beatriz, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Martínez-Valderrama, Jaime, Plaza, César, Abedi, Mehdi, Ahmadian, Negar, Ahumada, Rodrigo J., Alcántara, Julio M., Amghar, Fateh, Azevedo, Luísa, Ben Salem, Farah, Berdugo, Miguel, Blaum, Niels, Boldgiv, Bazartseren, Bowker, Matthew, Bran, Donaldo, Bu, Chongfeng, Canessa, Rafaella, Castillo-Monroy, Andrea P., Castro, Ignacio, Castro-Quezada, Patricio, Cesarz, Simone, Chibani, Roukaya, Conceição, Abel Augusto, Darrouzet-Nardi, Anthony, Davila, Yvonne C., Deák, Balázs, Díaz-Martínez, Paloma, Donoso, David A., Dougill, Andrew David, Durán, Jorge, Eisenhauer, Nico, Ejtehadi, Hamid, Espinosa, Carlos Ivan, Fajardo, Alex, Farzam, Mohammad, Foronda, Ana, Franzese, Jorgelina, Fraser, Lauchlan H., Gaitán, Juan, Geissler, Katja, Gonzalez, Sofía Laura, Gusman-Montalvan, Elizabeth, Hernández, Rosa Mary, Hölzel, Norbert, Hughes, Frederic Mendes, Jadan, Oswaldo, Jentsch, Anke, Ju, Mengchen, Kaseke, Kudzai F., Köbel, Melanie, Lehmann, Anika, Liancourt, Pierre, Linstädter, Anja, Louw, Michelle A., Ma, Quanhui, Mabaso, Mancha, Maggs-Kölling, Gillian, Makhalanyane, Thulani P., Issa, Oumarou Malam, Marais, Eugene, McClaran, Mitchel, Mendoza, Betty, Mokoka, Vincent, Mora, Juan P., Moreno, Gerardo, Munson, Seth, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón R., Osborne, Brooke, Peter, Guadalupe, Pierre, Margerie, Pueyo, Yolanda, Emiliano Quiroga, R., Reed, Sasha, Rey, Ana, Rey, Pedro, Gómez, Víctor Manuel Reyes, Rolo, Víctor, Rillig, Matthias C., le Roux, Peter C., Ruppert, Jan Christian, Salah, Ayman, Sebei, Phokgedi Julius, Sharkhuu, Anarmaa, Stavi, Ilan, Stephens, Colton, Teixido, Alberto L., Thomas, Andrew David, Tielbörger, Katja, Robles, Silvia Torres, Travers, Samantha, Valkó, Orsolya, van den Brink, Liesbeth, Velbert, Frederike, von Heßberg, Andreas, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Zhang, Yuanming, Zhou, Xiaobing, and Maestre, Fernando T.

Published
2024
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8. Water inputs across the Namib Desert: implications for dryland edaphic microbiology

Author

Bosch, Jason, Marais, Eugene, Maggs-Kölling, Gillian, Ramond, Jean-Baptiste, Lebre, Pedro H., Eckardt, Frank, and Cowan, Don A.

Subjects
drylands, hyper-arid, Namib Desert, relative humidity, water availability
Abstract

Microbes have a dominant role in nutrient cycling processes in the world’s deserts, where growth and activity are limited by the availability of water. In order to understand the dynamics of water availability in a desert system and how it may affect the soil microbiome, we analysed soil temperature and relative humidity fluctuations recorded between April 2018 and April 2020 across a precipitation gradient in the Namib Desert and compared them with recorded data from satellites and nearby weather stations. This allowed us to assess the possible impact of fog and rain events in terms of biologically-available water. Using published literature on the water activity limits for various physiological processes in microorganisms, we were able to infer the annual ‘metabolic windows’ for desert microbial communities across the longitudinal precipitation gradient. Specifically, soil surface microbial communities were estimated to have the capacity for active growth for an average of 184- 363 hours per year with the duration heavily dependent on intermittent rainfall events. During the relatively wet period of April 2018 - March 2019, the maximum growth window was found in the hyper-arid central region of the transect (approximately 100 km from the coast). During the dryer 2019- 2020 period, there was almost no predicted growth capacity in the hyper-arid region but substantial metabolic windows both near the coast and for the eastern inland areas, where water input comes in the form of fog and moist coastal air, and higher rainfall, respectively. As the first detailed study of the temperature and relative humidity characteristics of Namib Desert near-surface soils, this study provides valuable insights into the biogeography of microbial communities. In addition, the estimates for organismal functionality calculated in this study offer a baseline for future quantitation of the impacts of climate change on the functional capacity of desert soil microbiomes.

Published
2022

11. A Brief Introduction to Hot Desert Environments: Climate, Geomorphology, Habitats, and Soils

Author

Eckardt, Frank D., Maggs-Kölling, Gillian, Marais, Eugene, de Jager, Pieter C., Canadell, Josep G., Series Editor, Díaz, Sandra, Series Editor, Heldmaier, Gerhard, Series Editor, Jackson, Robert B., Series Editor, Levia, Delphis F., Series Editor, Schulze, Ernst-Detlef, Series Editor, Sommer, Ulrich, Series Editor, Wardle, David A., Series Editor, Ramond, Jean-Baptiste, editor, and Cowan, Don A., editor

Published
2022
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14. A second locality for the Namib darkling beetle Onymacris brainei (Tenebrionidae, Coleoptera) and first report on its molecular phylogenetic placement

Author

Lamb, Trip, Marais, Eugene, and Bond, Jason E

Subjects
Biological Sciences, Ecology, Evolutionary Biology, Genetics, Adesmiini, Namib Desert, Onymacris, Tenebrionidae, Zoology, Evolutionary biology
Abstract

Onymacris brainei Penrith, 1984 - the most recent species of Onymacris to be described - is known only from its type locality in the Namib Desert, adjacent to the Cunene River in northern Namibia. No additional specimens are known to have been collected beyond the type series. Herein, we report on eight specimens discovered at a second site near the original locality. DNA from four beetles was used to determine the phylogenetic placement of O. brainei among congeners, based on sequence data from one nuclear (histone III) and two mitochondrial (cox1, cox2) genes. Maximum likelihood analysis identifies O. brainei as a member of the 'white' Onymacris clade, in which it forms a strongly supported subclade with O. bicolor and O. marginipennis. More broadly, its phylogenetic placement augments previous molecular results that revealed a sister taxon relationship between the 'white' Onymacris and a second genus, Physadesmia. The paraphyly of Onymacris with respect to Physadesmia highlights a need for nomenclatural change, but revision should await acquisition of genetic data for the few species outstanding in both genera.

Published
2017

15. Kinetics and pathways of sub‐lithic microbial community (hypolithon) development.

Author

Bosch, Jason, Lebre, Pedro H., Marais, Eugene, Maggs‐Kölling, Gillian, and Cowan, Don A.

Subjects
MICROBIAL communities, DESERT soils, LIGHT transmission, ABIOTIC stress, COMMUNITY development, NUTRIENT cycles
Abstract

Type I hypolithons are microbial communities dominated by Cyanobacteria. They adhere to the underside of semi‐translucent rocks in desert pavements, providing them with a refuge from the harsh abiotic stresses found on the desert soil surface. Despite their crucial role in soil nutrient cycling, our understanding of their growth rates and community development pathways remains limited. This study aimed to quantify the dynamics of hypolithon formation in the pavements of the Namib Desert. We established replicate arrays of sterile rock tiles with varying light transmission in two areas of the Namib Desert, each with different annual precipitation regimes. These were sampled annually over 7 years, and the samples were analysed using eDNA extraction and 16S rRNA gene amplicon sequencing. Our findings revealed that in the zone with higher precipitation, hypolithon formation became evident in semi‐translucent rocks 3 years after the arrays were set up. This coincided with a Cyanobacterial 'bloom' in the adherent microbial community in the third year. In contrast, no visible hypolithon formation was observed at the array set up in the hyper‐arid zone. This study provides the first quantitative evidence of the kinetics of hypolithon development in hot desert environments, suggesting that development rates are strongly influenced by precipitation regimes. [ABSTRACT FROM AUTHOR]

Published
2024
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18. The Welwitschia genome reveals a unique biology underpinning extreme longevity in deserts

Author

Wan, Tao, Liu, Zhiming, Leitch, Ilia J., Xin, Haiping, Maggs-Kölling, Gillian, Gong, Yanbing, Li, Zhen, Marais, Eugene, Liao, Yiying, Dai, Can, Liu, Fan, Wu, Qijia, Song, Chi, Zhou, Yadong, Huang, Weichang, Jiang, Kai, Wang, Qi, Yang, Yong, Zhong, Zhixiang, Yang, Ming, Yan, Xue, Hu, Guangwan, Hou, Chen, Su, Yingjuan, Feng, Shixiu, Yang, Ji, Yan, Jijun, Chu, Jinfang, Chen, Fan, Ran, Jinhua, Wang, Xiaoquan, Van de Peer, Yves, Leitch, Andrew R., and Wang, Qingfeng

Published
2021
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22. Reflections on Our Journeys to Foregrounding Students' Experiences Through Literature in a Pre-Service Teacher Education Programme.

Author

Campbell, Bridget, Mhlongo, Bonakele, Mthembu, Bheki, and Marais, Eugene

Subjects
STUDENT teachers, TEACHING teams, DIALOGICS, COLLABORATIVE learning, LITERATURE
Abstract

In this essay, four teacher educators explore their journeys towards foregrounding students' lived experiences when teaching literature. Data about our teaching of literature in different contexts were generated through our personal reflective narratives and ensuing dialogic critical friend conversations. Inductive thematic analysis of the narratives revealed that in spite of our diverse initial teaching contexts and trajectories, we initially all taught in much the same teacher-centred way. We also came to the realisation, however, that over the years our informal conversations had played a role in our teaching, allowing us to move beyond our educations. Collaborative teaching relationships developed out of incidental corridor conversations and these have been instrumental in reshaping our teaching of literature, enabling us to make literary texts relevant to societal issues and the lived experiences of our students. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Dating Hominin occupation of the north of the Namib Sand Sea, Namibia

Author

Stone, Abi, Stratford, Dominic, Marks, Theodore, Bynoe, Rachel, Efraim, Kaarina, Marais, Eugene, Smedley, Rachel, and Leader, George

Abstract

The Namib Sand Sea (NSS) is one of the oldest deserts on Earth, representing a significant challenge to human occupation, yet, despite these challenges, Early Stone Age (ESA) and Middle Stone Age (MSA) tools are found across this hyperarid landscape. Whilst surface scatters are hindered by a lack of clear stratigraphy, they provide a spatially integrated record of the structuring of landscape use through time and relationships to sources of raw material and water. Omitting such sites leads to bias in our interpretations of early hominin distribution. We investigate how and why early hominins were moving into the northern NSS, focussing on the two interdune pan sites of Namib IV and Narabeb. In establishing the palaeoenvironmental context of the lithics and fossil fauna, 12 samples from Namib IV and for from Narabeb were taken for luminescence. This poster sets out the context of these archaeological sites and the stratigraphies observed. Relative age data from the portable luminescence reader and preliminary analysis using post-IR IRSL protocols to extend the achievable age range will be discussed, and there may be additional data hot off the RISØ readers accompanying the poster.

Published
2023

28. Grazing and ecosystem service delivery in global drylands

Author

Maestre, Fernando T., Le Bagousse-Pinguet, Yoann, 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, Eisenhauer, 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., Issa, Oumarou Malam, 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 Velasco, Velbert, Frederike, Wamiti, Wanyoike, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Zhang, Yuanming, Zhou, Xiaobing, Singh, Brajesh K., Gross, Nicolas, Universidad de Alicante, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), University of New South Wales [Sydney] (UNSW), University of Zaragoza - Universidad de Zaragoza [Zaragoza], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Université d'Alicante, Espagne (UA), Universidad Politécnica de Madrid (UPM), Chinese Academy of Agricultural Sciences (CAAS), Université Clermont Auvergne (UCA), Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), European Research Council, Generalitat Valenciana, Alexander von Humboldt Foundation, German Centre for Integrative Biodiversity Research, German Research Foundation, European Commission, Asia Foundation, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Ciencia e Innovación (España), Comunidad de Madrid, Northern Arizona University, Consejo Nacional de Ciencia y Tecnología (México), Ministério da Ciência, Tecnologia e Inovação (Brasil), National Science Foundation (US), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Brasil), National Research Foundation (South Africa), Federal Ministry of Education and Research (Germany), Natural Sciences and Engineering Research Council of Canada, Australian Research Council, Agencia Estatal de Investigación (España), Junta de Andalucía, National Natural Science Foundation of China, Universidad Nacional de Río Negro, Junta de Extremadura, Ferdowsi University of Mashhad, Environmental Investment Fund of Namibia, Taylor Family Foundation, Maestre, Fernando T., Delgado-Baquerizo, Manuel, Eldridge, David J., Sáiz, Hugo, Berdugo, Miguel, Gozalo, Beatriz, Ochoa, Victoria, Guirado, Emilio, García-Gómez, Miguel, Valencia, Enrique, Gaitán, Juan J., Deák, Balázs, Donoso, David, Dougill, Andrew, Erdenetsetseg, Batdegleg, Espinosa, Carlos Iván, Fajardo, Alex, Farzam, Mohammad, Ferrante, Daniela, Frank, Anke S. K., fraser, Lauchlan, Jeltsch, Florian, Gherardi, Laureano, Greenville, Aaron, Guerra, Carlos A., Gusmán Montalván, Elizabeth, Hernández Hernández, Rosa M., Huber-Sannwald, E., Hughes, Frederic M., Jadán-Maza, O., Jentsch, Anke, Kaseke, Kudzai Farai, Köbel, Melanie, Koopman, Jesica E., Leder, Cintia, Linstädter, Anja, Le Roux, Peter C., Liancourt, Pierre, Liu, Jushan, Munson, Seth M., Low, Michelle A., Maggs Kölling, Gillian, Makhalanyane, Thulani P.7, Malam Issa, Oumarou7, Manzaneda, Antonio J., Marais, Eugene, Mora, Juan P., Moreno, Gerardo, Nunes, Alice, Oliva, Gabriel, Oñatibia, Gastón, Peter, Guadalupe, Pivari, Marco O. D., Pueyo, Yolanda, Quiroga, R Emiliano, Reed, Sasha C., Rey, P.J., Teixido, Alberto L., Richard, Benoit, Rodríguez, Alexandra, Rolo, Víctor, Rubalcaba, Juan G., Salah, Ayman, Stavi, Ilan, Stephens, Colton R. A., Swemmer, Anthony, Thomas, Andrew, Throop, Heather L., Travers, Samantha, Val, James, Valkó, Orsolya, van den Brink, Liesbeth, Velasco Ayuso, Sergio, Velbert, Frederike, Wamiti, Wanyoike, Asencio, Sergio, Wang, Deli, Wang, Lixin, Wardle, Glenda M., Yahdjian, Laura, Zaady, Eli, Yuanming, Zhang, Singh, Brajesh K., Gross, Nicolas, Mendoza, Betty J., Plaza de Carlos, César, Rey, Ana, Hu, Hang-Wei, He, Ji-Zheng, Wang, Jun-Tao, Lehmann, Anika, Rillig, Matthias C., Cesarz, Simone, Eisenhauer, Nico, Martínez-Valderrama, Jaime, Moreno-Jiménez, Eduardo, Salas, O., Abedi, Mehdi, Ahmadian , Negar, Alados, Concepción L., Aramayo, Valeria, Amghar, Fateh, Arredondo, Tulio, Ahumada, Rodrigo J., Bahalkeh, Khadijeh, Salem, Farah Ben, Blaum, Niels, Boldgiv, Bazartseren, Browker, Matthew A., Bran, Donaldo, Bu, Chongfeng, Canessa, Rafaella, Castro, Helena, Castro, Ignacio, Castro-Quezada, Patricio, Conceição, Abel A., Currier, Courtney M., Darrouzet-Nardi, Anthony, Universidad de Alicante. Departamento de Ecología, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio 'Ramón Margalef', Laboratorio de Ecología de Zonas Áridas y Cambio Global (DRYLAB), Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Universidad Rey Juan Carlos [Madrid] (URJC), Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Repositório da Universidade de Lisboa

Subjects
Livestock, Multidisciplinary, Climate Change, Drylands, Systems, Wild, Biodiversity, 580 Plants (Botany), Soil, Grazing, [SDE]Environmental Sciences, Ecosystem services, Herbivory, Rangeland
Abstract

7 páginas.- 4 figuras.- 32 referencias.- Supplementary materials: science.org/doi/10.1126/science.abq4062 Materials and Methods Figs. S1 to S19 Tables S1 to S28 References (33–269) MDAR Reproducibility Checklist Movie S1.- 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 speciespoor 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. Copyright © 2022 the authors, 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. Copyright © 2022 the authors, Funding: This research was funded by the European Research Council [ERC grant agreement 647038 (BIODESERT)] and Generalitat Valenciana (CIDEGENT/2018/ 041). F.T.M. acknowledges support from a Rei Jaume I Award, the Alexander von Humboldt Foundation, and the Synthesis Center (sDiv) of the German Centre for Integrative Biodiversity Research Halle–Jena–Leipzig (iDiv). C.A.G., S.C., and N.E. acknowledge support from iDiv and the Deutsche Forschungsgemeinschaft (DFG– FZT 118, 202548816; Flexpool proposal 34600850). Y.L.B.-P. was supported by a Marie Sklodowska-Curie Actions Individual Fellowship (MSCA-IF) within the European Program Horizon 2020 (DRYFUN Project 656035). N.G. was supported by CAP 20-25 (16-IDEX-0001) and the AgreenSkills+ fellowship program, which has received funding from the EU’s Seventh Framework Programme under grant agreement N° FP7-609398 (AgreenSkills+ contract). B.B. and B.E. were supported by the Taylor Family–Asia Foundation Endowed Chair in Ecology and Conservation Biology. J.D., A.Ro., and H.C. acknowledge support from the Fundação para a Ciência e a Tecnologia (IF/00950/ 2014 and 2020.03670.CEECIND, SFRH/BDP/108913/2015, and in the scope of the framework contract foreseen in the numbers 4-6 of the article 23, of the Decree-Law 57/2016, August 29, changed by Law 57/2017, July 19, respectively), as well as from the MCTES, FSE, UE, and the CFE (UIDB/04004/2020) research unit financed by Fundação para a Ciência e a Tecnologia/MCTES through national funds (PIDDAC). C.P. acknowledges support from the Spanish Ministry of Science and Innovation (ref. AGL201675762-R, AEI/FEDER, UE, and PID2020-116578RB-I00, MCIN/AEI/10.13039/501100011033) and the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement no. 101000224. E.V. was funded by the 2017 program for attracting and retaining talent of Comunidad de Madrid (no. 2017‐T2/ AMB‐5406). M.A.B. acknowledges support from the School of Forestry and College of the Environment, Forestry and Natural Sciences of Northern Arizona University. E.H.-S. acknowledges support from the Consejo Nacional de Ciencia y Tecnología (SEP-CB-2015-01-251388, PN 2017-5036 and PRONAII 319059). F.M.H. acknowledges support from the National Council for Scientific and Technological Development (CNPq - PCI/INMA) of the Brazilian Ministry of Science, Technology and Innovation (MCTI, processes number 302381/2020-1). H.L.T. acknowledges support from the US National Science Foundation (NSF) (DEB 0953864). A.N. and M.K. acknowledge support from the Fundação para a Ciência e a Tecnologia (SFRH/BD/130274/2017, CEECIND/02453/2018/CP1534/CT0001, PTDC/ASP-SIL/7743/2020 and UIDB/00329/2020). A.A.C. acknowledges support from the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. J.E.K. and T.P.M. acknowledge the National Research Foundation of South Africa (grant no. 114412). F.J. and N.B. acknowledge support from the German Federal Ministry of Education and Research (BMBF) in the framework of the SPACES projects OPTIMASS (FKZ: 01LL1302A) and ORYCS (FKZ:01LL1804A). A.Li. and A.S.K.F. acknowledge support from the German Federal Ministry of Education and Research (BMBF) in the framework of the SPACES projects Limpopo Living Landscapes (FKZ: 01LL1304D) and SALLnet (FKZ: 01LL1802C). L.W. acknowledges support from the US NSF (EAR 1554894). L.H.F. acknowledges support from the Natural Sciences and Engineering Research Council of Canada Industrial Research Chair Program in Ecosystem Reclamation. S.C.R. acknowledges support from the US Geological Survey Ecosystems Mission Area and the US Bureau of Land Management. G.M.W. acknowledges support from the Australian Research Council. L.v.d.B. and K.T. acknowledge support from the German Research Foundation (DFG) priority research program SPP-1803 “EarthShape: Earth Surface Shaping by Biota” (TI 338/14-1). M.D.-B. acknowledges support from the Spanish Ministry of Science and Innovation for the I+D+i project PID2020-115813RA-I00 funded by MCIN/AEI/10.13039/501100011033. M.D.-B. is also supported by a project of the Fondo Europeo de Desarrollo Regional (FEDER) and the Consejería de Transformación Económica, Industria, Conocimiento y Universidades of the Junta de Andalucía (FEDER Andalucía 2014-2020 Objetivo temático “01 - Refuerzo de la investigación, el desarrollo tecnológico y la innovación”) associated with the research project P20_00879 (ANDABIOMA). P.J.R. and A.J.M. acknowledge support from Fondo Europeo de Desarrollo Regional through the FEDER Andalucía operative program, FEDER-UJA 1261180 project. A.F. thanks ANID PIA/BASAL FB210006 and Millennium Science Initiative Program NCN2021-050. A.J. acknowledges support from the Bavarian Research Alliance Germany (BayIntAn_UBT_2017_61). C.B. acknowledges the National Natural Science Foundation of China (grant no. 41971131). Biodiversity and ecosystem function research in the B.K.S. laboratory is funded by the Australian Research Council (DP210102081). Any use of trade, product, or firm names in this paper is for descriptive purposes only and does not imply endorsement by the US government. H.S. is supported by a María Zambrano fellowship funded by the Ministry of Universities and European Union-Next Generation plan. G.P. and C.V.L. acknowledge support from Universidad Nacional de Río Negro (PI 40-C-873 and 654). V.R. acknowledges support from the Regional Government of Extremadura (Spain) through a “Talento” fellowship (TA18022). M.F. acknowledges support from the Department of Range and Watershed Management, Ferdowsi University of Mashhad, Mashhad, Iran. Participation of recent graduates in collecting field data at four sites in Namibia was supported by a capacity building grant to Gobabeb–Namib Research Institute by the Environmental Investment Fund in Namibia.

Published
2022

30. New observations of climate-relevant properties of atmospheric aerosols in Namibia, southern Africa.

Author

Hemeret, François, primary, Formenti, Paola, additional, Di-Biagio, Claudia, additional, Language, Brigitte, additional, Chevaillier, Servanne, additional, Féron, Anaïs, additional, Cazaunau, Mathieu, additional, Torres-Sánchez, Raquel, additional, Piketh, Stuart, additional, Engelbrecht, François, additional, Moolla, Raeesa, additional, Bezuidenhoudt, Ulrich, additional, Luyanda, Brendan, additional, Marais, Eugene, additional, and Maggs-Kölling, Gillian, additional

Published
2023
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38. The Namib Turbulence Experiment: Investigating Surface–Atmosphere Heat Transfer in Three Dimensions

Author

Hilland, Rainer V. J., primary, Bernhofer, Christian, additional, Bohmann, May, additional, Christen, Andreas, additional, Katurji, Marwan, additional, Maggs-Kölling, Gillian, additional, Krauß, Matthias, additional, Larsen, Jarl A., additional, Marais, Eugene, additional, Pitacco, Andrea, additional, Schumacher, Benjamin, additional, Spirig, Robert, additional, Vendrame, Nadia, additional, and Vogt, Roland, additional

Published
2022
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40. Bomb-spike dating of a mummified baboon in Ludwig Cave, Namibia

Author

Hodgins Greg, Brook George A., and Marais Eugene

Subjects
mummified animals, baboons, caves, bomb-spike dating, radiocarbon, Namibia, Otavi Region, Ludwig Cave., Biology (General), QH301-705.5, Geology, QE1-996.5
Abstract

In 1982 a mummified adult female baboon was discovered on a ledge in Ludwig Cave in Namibia. A toe bone was removed for dating in July 1995. AMS radiocarbon dating of bone collagen, tendon, and skin indicates a post-modern age. Application of the atomic bomb-spike calibration curve suggests death in late 1977 and an age at death of around 19 years. Baboons roost in the cave and the mummified female, along with a mummified juvenile male discovered in 2002 and three rotting corpses discovered in 1995, were probably chased by other baboons or by leopards down a ca. 6 m drop during the rainy season, and were unable to climb the steep and very slippery slope to escape. The large number of baboons trapped in the cave in less than 20 years, and mummification of two individuals on dry, dusty ledges in the cave, may explain why large numbers of baboon skeletons have been discovered in ancient bone breccias (up to 4 Ma old) in a number of caves throughout Southern Africa.

Published
2007

50. Long-term column-averaged greenhouse gas observations using a COCCON spectrometer at a high surface albedo site in Namibia

Author

Frey, Matthias, primary, Blumenstock, Thomas, additional, Dubravica, Darko, additional, Hase, Frank, additional, Goettsche, Frank, additional, Gross, Jochen, additional, Olesen, Folke, additional, Amadhila, Petrus, additional, Handjaba, Martin, additional, Maggs-Koelling, Gillian, additional, Marais, Eugene, additional, Mushi, Roland, additional, Morino, Isamu, additional, Shiomi, Kei, additional, de Maziere, Martine, additional, and Sha, Mahesh Kumar, additional

Published
2020
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