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10. RecruitNet: A global database of plant recruitment networks

Author

European Commission, Agencia Estatal de Investigación (España), Verdú, Miguel [0000-0002-9778-7692], Garrido, José L. [0000-0002-6859-4234], Alcántara, Julio M. [0000-0002-8003-7844], Montesinos-Navarro, Alicia [0000-0003-4656-0321], Aizen, Marcelo A. [0000-0001-9079-9749], Al-Namazi, Ali A. [0000-0003-2767-4366], Alifriqui, Mohamed [0000-0002-9176-7789], Allen, David [0000-0002-0712-9603], Anderson-Teixeira, Kristina J. [0000-0001-8461-9713], Armas, Cristina [0000-0003-0356-8075], Bastida, Jesús M. [0000-0002-8680-1401], Bonanomi, Giuliano [0000-0002-1831-4361], Paterno, Gustavo B. [0000-0001-9719-3037], Campoy, Josefina G. [0000-0002-7300-1173], Condit, Richard [0000-0003-4191-1495], Delalandre, Leo [0000-0003-2875-4587], Duarte, Milen [0000-0003-4784-9880], Fazlioglu, Fatih [0000-0002-4723-3640], Flores-Olvera, Hilda [0000-0002-3262-9570], Garcia, María Begoña [0000-0003-4231-6006], García-Fayos, Patricio [0000-0003-3449-5075], Goberna, Marta [0000-0001-5303-3429], Gómez Aparicio, Lorena [0000-0001-5122-3579], González-Pendás, Enrique [0000-0001-5058-7733], İpekdal, Kahraman [0000-0001-9968-3013], Kikvidze, Zaal [0000-0002-5007-4484], Ledo, Alicia [0000-0002-3967-6994], Liu, Hanlun [0000-0002-9424-4940], López García, Álvaro [0000-0001-8267-3572], Lortie, Christopher J. [0000-0002-4291-7023], Losapio, Gianalberto [0000-0001-7589-8706], Lutz, James A. [0000-0002-2560-0710], Luzuriaga, Arantzazu L. [0000-0001-5023-7813], Máliš, František [0000-0003-2760-6988], Michalet, Richard [0000-0002-6617-4789], Molina-Venegas, Rafael [0000-0001-5801-0736], Navarro-Cano, J. A. [0000-0001-8091-1063], Ortiz-Brunel, Juan P. [0000-0002-0695-8143], Pérez-Hernández, Vidal [0000-0001-6793-296X], Pistón, Nuria [0000-0003-4946-9945], Prieto, Iván [0000-0001-5549-1132], Prieto Rubio, Jorge [0000-0002-5600-5113], Pugnaire, Francisco I. [0000-0002-1227-6827], Ramírez, Nelson [0000-0002-6385-3866], Rey, Pedro J. [0000-0001-5550-0393], Sánchez-Martín, Ricardo [0000-0001-5272-3276], Schob, Christian [0000-0003-4472-2286], Tercero-Araque, Amanda [0000-0002-7255-5844], Usero, Francisco M. [0000-0002-4648-4202], Usta, Nurbahar [0000-0002-9265-2780], Zamora, Regino [0000-0002-5049-9968], Verdú, Miguel, Garrido, José L., Alcántara, Julio M., Montesinos-Navarro, Alicia, Aguilar, Salomón, Aizen, Marcelo A., Al-Namazi, Ali A., Alifriqui, Mohamed, Allen, David, Anderson-Teixeira, Kristina J., Armas, Cristina, Bastida, Jesús M., Bellido, Tono, Bonanomi, Giuliano, Paterno, Gustavo B., Briceño, Herbert, de Oliveira, Ricardo A.C., Campoy, Josefina G., Chaieb, Ghassen, Chu, Chengjin, Collins, Sarah E., Condit, Richard, Constantinou, Elena, Degirmenci, Cihan Ü., Delalandre, Leo, Duarte, Milen, Faife, Michel, Fazlioglu, Fatih, Fernando, Edwino S., Flores, Joel, Flores-Olvera, Hilda, Fodor, Ecaterina, Ganade, Gislene, Garcia, María Begoña, García-Fayos, Patricio, Gavini, Sabrina S., Goberna, M., Gómez Aparicio, Lorena, González-Pendás, Enrique, González-Robles, Ana, Hubbell, Stephen P., İpekdal, Kahraman, Jorquera, María J., Kikvidze, Zaal, Kütküt, Pınar, Ledo, Alicia, Lendínez, Sandra, Li, Buhang, Liu, Hanlun, Lloret, Francisco, López, Ramiro P., López García, Álvaro, Lortie, Christopher J., Losapio, Gianalberto, Lutz, James A., Luzuriaga, Arantzazu L., Máliš, František, Manrique, Esteban, Manzaneda, Antonio J., Marcilio-Silva, Vinicius, Michalet, Richard, Molina-Venegas, Rafael, Navarro-Cano, J. A., Novotny, Vojtech, Olesen, Jens M., Ortiz-Brunel, Juan P., Pajares-Murgó, María, Parissis, Nikolas, Parker, Geoffrey, Perea, Antonio J., Pérez-Hernández, Vidal, Pérez-Navarro, María Ángeles, Pistón, Nuria, Pizarro-Carbonell, Elisa, Prieto, Iván, Prieto Rubio, Jorge, Pugnaire, Francisco I., Ramírez, Nelson, Retuerto, Rubén, Rey, Pedro J., Rodriguez Ginart, Daniel A., Rodríguez-Sánchez, Mariana, Sánchez-Martín, Ricardo, Schob, Christian, Tavşanoğlu, Çağatay, Tedoradze, Giorgi, Tercero-Araque, Amanda, Tielbörger, Katja, Touzard, Blaise, Tüfekcioğlu, İrem, Turkis, Sevda, Usero, Francisco M., Usta, Nurbahar, Valiente-Banuet, Alfonso, Vargas-Colin, Alexia, Vogiatzakis, Ioannis, Zamora, Regino, European Commission, Agencia Estatal de Investigación (España), Verdú, Miguel [0000-0002-9778-7692], Garrido, José L. [0000-0002-6859-4234], Alcántara, Julio M. [0000-0002-8003-7844], Montesinos-Navarro, Alicia [0000-0003-4656-0321], Aizen, Marcelo A. [0000-0001-9079-9749], Al-Namazi, Ali A. [0000-0003-2767-4366], Alifriqui, Mohamed [0000-0002-9176-7789], Allen, David [0000-0002-0712-9603], Anderson-Teixeira, Kristina J. [0000-0001-8461-9713], Armas, Cristina [0000-0003-0356-8075], Bastida, Jesús M. [0000-0002-8680-1401], Bonanomi, Giuliano [0000-0002-1831-4361], Paterno, Gustavo B. [0000-0001-9719-3037], Campoy, Josefina G. [0000-0002-7300-1173], Condit, Richard [0000-0003-4191-1495], Delalandre, Leo [0000-0003-2875-4587], Duarte, Milen [0000-0003-4784-9880], Fazlioglu, Fatih [0000-0002-4723-3640], Flores-Olvera, Hilda [0000-0002-3262-9570], Garcia, María Begoña [0000-0003-4231-6006], García-Fayos, Patricio [0000-0003-3449-5075], Goberna, Marta [0000-0001-5303-3429], Gómez Aparicio, Lorena [0000-0001-5122-3579], González-Pendás, Enrique [0000-0001-5058-7733], İpekdal, Kahraman [0000-0001-9968-3013], Kikvidze, Zaal [0000-0002-5007-4484], Ledo, Alicia [0000-0002-3967-6994], Liu, Hanlun [0000-0002-9424-4940], López García, Álvaro [0000-0001-8267-3572], Lortie, Christopher J. [0000-0002-4291-7023], Losapio, Gianalberto [0000-0001-7589-8706], Lutz, James A. [0000-0002-2560-0710], Luzuriaga, Arantzazu L. [0000-0001-5023-7813], Máliš, František [0000-0003-2760-6988], Michalet, Richard [0000-0002-6617-4789], Molina-Venegas, Rafael [0000-0001-5801-0736], Navarro-Cano, J. A. [0000-0001-8091-1063], Ortiz-Brunel, Juan P. [0000-0002-0695-8143], Pérez-Hernández, Vidal [0000-0001-6793-296X], Pistón, Nuria [0000-0003-4946-9945], Prieto, Iván [0000-0001-5549-1132], Prieto Rubio, Jorge [0000-0002-5600-5113], Pugnaire, Francisco I. [0000-0002-1227-6827], Ramírez, Nelson [0000-0002-6385-3866], Rey, Pedro J. [0000-0001-5550-0393], Sánchez-Martín, Ricardo [0000-0001-5272-3276], Schob, Christian [0000-0003-4472-2286], Tercero-Araque, Amanda [0000-0002-7255-5844], Usero, Francisco M. [0000-0002-4648-4202], Usta, Nurbahar [0000-0002-9265-2780], Zamora, Regino [0000-0002-5049-9968], Verdú, Miguel, Garrido, José L., Alcántara, Julio M., Montesinos-Navarro, Alicia, Aguilar, Salomón, Aizen, Marcelo A., Al-Namazi, Ali A., Alifriqui, Mohamed, Allen, David, Anderson-Teixeira, Kristina J., Armas, Cristina, Bastida, Jesús M., Bellido, Tono, Bonanomi, Giuliano, Paterno, Gustavo B., Briceño, Herbert, de Oliveira, Ricardo A.C., Campoy, Josefina G., Chaieb, Ghassen, Chu, Chengjin, Collins, Sarah E., Condit, Richard, Constantinou, Elena, Degirmenci, Cihan Ü., Delalandre, Leo, Duarte, Milen, Faife, Michel, Fazlioglu, Fatih, Fernando, Edwino S., Flores, Joel, Flores-Olvera, Hilda, Fodor, Ecaterina, Ganade, Gislene, Garcia, María Begoña, García-Fayos, Patricio, Gavini, Sabrina S., Goberna, M., Gómez Aparicio, Lorena, González-Pendás, Enrique, González-Robles, Ana, Hubbell, Stephen P., İpekdal, Kahraman, Jorquera, María J., Kikvidze, Zaal, Kütküt, Pınar, Ledo, Alicia, Lendínez, Sandra, Li, Buhang, Liu, Hanlun, Lloret, Francisco, López, Ramiro P., López García, Álvaro, Lortie, Christopher J., Losapio, Gianalberto, Lutz, James A., Luzuriaga, Arantzazu L., Máliš, František, Manrique, Esteban, Manzaneda, Antonio J., Marcilio-Silva, Vinicius, Michalet, Richard, Molina-Venegas, Rafael, Navarro-Cano, J. A., Novotny, Vojtech, Olesen, Jens M., Ortiz-Brunel, Juan P., Pajares-Murgó, María, Parissis, Nikolas, Parker, Geoffrey, Perea, Antonio J., Pérez-Hernández, Vidal, Pérez-Navarro, María Ángeles, Pistón, Nuria, Pizarro-Carbonell, Elisa, Prieto, Iván, Prieto Rubio, Jorge, Pugnaire, Francisco I., Ramírez, Nelson, Retuerto, Rubén, Rey, Pedro J., Rodriguez Ginart, Daniel A., Rodríguez-Sánchez, Mariana, Sánchez-Martín, Ricardo, Schob, Christian, Tavşanoğlu, Çağatay, Tedoradze, Giorgi, Tercero-Araque, Amanda, Tielbörger, Katja, Touzard, Blaise, Tüfekcioğlu, İrem, Turkis, Sevda, Usero, Francisco M., Usta, Nurbahar, Valiente-Banuet, Alfonso, Vargas-Colin, Alexia, Vogiatzakis, Ioannis, and Zamora, Regino

Abstract

Plant recruitment interactions (i.e., what recruits under what) shape the composition, diversity, and structure of plant communities. Despite the huge body of knowledge on the mechanisms underlying recruitment interactions among species, we still know little about the structure of the recruitment networks emerging in ecological communities. Modeling and analyzing the community-level structure of plant recruitment interactions as a complex network can provide relevant information on ecological and evolutionary processes acting both at the species and ecosystem levels. We report a data set containing 143 plant recruitment networks in 23 countries across five continents, including temperate and tropical ecosystems. Each network identifies the species under which another species recruits. All networks report the number of recruits (i.e., individuals) per species. The data set includes >850,000 recruiting individuals involved in 118,411 paired interactions among 3318 vascular plant species across the globe. The cover of canopy species and open ground is also provided. Three sampling protocols were used: (1) The Recruitment Network (RN) protocol (106 networks) focuses on interactions among established plants ("canopy species") and plants in their early stages of recruitment ("recruit species"). A series of plots was delimited within a locality, and all the individuals recruiting and their canopy species were identified; (2) The paired Canopy-Open (pCO) protocol (26 networks) consists in locating a potential canopy plant and identifying recruiting individuals under the canopy and in a nearby open space of the same area; (3) The Georeferenced plot (GP) protocol (11 networks) consists in using information from georeferenced individual plants in large plots to infer canopy-recruit interactions. Some networks incorporate data for both herbs and woody species, whereas others focus exclusively on woody species. The location of each study site, geographical coordinates, country

Published
2023

11. Quercus ilex germination

Author

Junta de Andalucía, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Pugnaire, Francisco I. [0000-0002-1227-6827], Magaña Ugarte, Rosina [rosinamu@gmail.com], Pugnaire, Francisco I. [fip@eeza.csic.es], Magaña Ugarte, Rosina, Pugnaire, Francisco I., Junta de Andalucía, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Pugnaire, Francisco I. [0000-0002-1227-6827], Magaña Ugarte, Rosina [rosinamu@gmail.com], Pugnaire, Francisco I. [fip@eeza.csic.es], Magaña Ugarte, Rosina, and Pugnaire, Francisco I.

Abstract

Germination data of sterilized and non-sterilized oak (Quercus ilex) seeds on sterilized and non-sterilized oak and pine soils, added with microbial extracts from oak and pine soils, plus a control of distilled water.

Published
2023

21. The Importance of Importance

Author

Brooker, Rob, Kikvidze, Zaal, Pugnaire, Francisco I., Callaway, Ragan M., Choler, Philippe, Lortie, Christopher J., and Michalet, Richard

Published
2005

22. Rethinking Plant Community Theory

Author

Lortie, Christopher J., Brooker, Rob W., Choler, Philippe, Kikvidze, Zaal, Michalet, Richard, Pugnaire, Francisco I., and Callaway, Ragan M.

Published
2004

27. Assessing the accuracy of paired and random sampling for quantifying plant–plant interactions in natural communities

Author

Michalet, Richard, primary, Losapio, Gianalberto, additional, Kikvidze, Zaal, additional, Brooker, Rob W., additional, Butterfield, Bradley J., additional, Callaway, Ragan M., additional, Cavieres, Lohengrin A., additional, Lortie, Christopher J., additional, Pugnaire, Francisco I., additional, and Schöb, Christian, additional

Published
2023
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31. Assessing the accuracy of paired and random sampling for quantifying plant–plant interactions in natural communities.

Author

Michalet, Richard, Losapio, Gianalberto, Kikvidze, Zaal, Brooker, Rob W., Butterfield, Bradley J., Callaway, Ragan M., Cavieres, Lohengrin A., Lortie, Christopher J., Pugnaire, Francisco I., and Schöb, Christian

Subjects
BIOTIC communities, STATISTICAL sampling, HOMOGENEOUS spaces, EXTREME environments, PLANT communities
Abstract

Plant interactions in extreme environments are often inferred from spatial associations and quantified by means of paired sampling. Yet, this method might be confounded by habitat‐sharing effects. Here, we address whether paired and random sampling methods provide similar results at varying levels of environmental heterogeneity. We quantified spatial associations with the two methods at three sites that encompass different micro‐environmental heterogeneity and stress levels: Mediterranean environments in Canary Islands, Spain, and Sardinia, Italy, and a cold alpine environment in Hokkaido, Japan. Then, we simulated plant communities with different levels of species micro‐habitat preferences, environmental heterogeneity, and stress levels. We found that differences in species associations between paired and random sampling were indistinguishable from zero in a homogeneous space. When simulating codispersion over a decreasing abundance gradient, both sampling methods correctly identified facilitation and distinguished it from codispersion. Yet, the pairwise method provided higher facilitation estimates than the random one. At each site, there were strong differences between beneficiary species in their spatial association with nurse species, and associations became more positive with increasing stress in Spain. Most importantly, there were no differences in results yielded by the two methods at any of the different stress levels at the Spanish and Japanese sites. At the Italian site, although micro‐environmental heterogeneity was low, we found weakly significant differences between methods that were unlikely due to habitat‐sharing effects. Thus, the paired sampling method can provide significant insights into net and long‐term effects of plant interactions in spatially conspicuous environments. [ABSTRACT FROM AUTHOR]

Published
2024
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38. Influence of organic matter management on the activity and structure of soil microbial community in intensive tomato (Solanum lycopersicum L.) greenhouse farming

Author

Usero, Francisco M., Morillo, José A., Armas, Cristina, Gallardo, Marisa, Thompson, Rodney B., Pugnaire, Francisco I., Usero, Francisco M., Morillo, José A., Armas, Cristina, Gallardo, Marisa, Thompson, Rodney B., and Pugnaire, Francisco I.

Abstract

Aim of study: Intensive agriculture impacts physical, chemical, and biological characteristics of soil; therefore, the addition of organic matter (OM) to soil can have significant implications for crop production. This study investigated the impact of three crop management systems on tomato production and soil microbial communities in intensive greenhouse farming. Area of study: Province of Almería (Spain). Material and methods: The three crop management systems included: (1) conventional management, using synthetic chemical fertilizers without OM application (CM); (2) conventional management, using synthetic chemical fertilizers with at least one OM application in the last three years (CMOM); and (3) fully organic management, featuring yearly OM applications and no use of synthetic chemical fertilizers (ORG). Main results: Compared to CM soils, OM addition in CMOM and ORG led to higher soil NO3- and NH4+ content, which in turn increased nitrogen (N) availability, leading to an increase in soil respiration. The addition of OM also altered the composition of prokaryotic and fungal soil communities. Besides, the addition of OM reduced the presence and abundance of potential fungal pathogenic organisms, like Sclerotinia sp. and Plectosphaerella cucumerina. OM addition to conventionally managed greenhouses (CMOM) led to higher crop yields compared to CM greenhouses, resulting in an overall increase of 880 g m-2. Production under fully organic management (ORG) was lowest, possibly due to the nutrient and pest management practices used. Research highlights: Our data show the importance of organic matter management in shaping microbial communities in intensive greenhouse systems, which can be a key factor in developing a more sustainable agriculture to feed a growing human population.

Published
2023

41. Leaf carbon isotope tracks the facilitation pattern of legume shrubs shaped by water availability and species replacement along a large elevation gradient in Trans-Himalayas.

Author

Ale, Rita, Zhang, Lin, Raskoti, Bhakta Bahadur, Cui, Guangshuai, Pugnaire, Francisco I, and Luo, Tianxiang

Subjects
WATER supply, CARBON isotopes, SHRUBS, LEGUMES, ALTITUDES, NUMBERS of species, SPECIES
Abstract

Background and Aims Understanding patterns and mechanisms of nurse plant facilitation is important to predict the resilience of arid/semi-arid ecosystems to climate change. We investigate whether water availability and nurse species turnover interact to shape the facilitation pattern of widespread legume shrubs along a large elevation gradient. We also investigate whether leaf δ13C of nurse plants can track the facilitation pattern. Methods We measured the relative interaction index (RII) of the number of species within and outside the canopy of two widespread legume shrub species (Caragana gerardiana and Caragana versicolor) alternatively distributed along a large elevation gradient in the Trans-Himalayas. We also assessed the proportional increase of species richness (ISR) at the community level using the paired plot data. To determine site-specific water availability, we measured the leaf δ13C of nurse shrubs and calculated the Thornthwaite moisture index (MI) for each elevation site. Key Results Elevational variations in RII, ISR and δ13C were mainly explained by the MI when the effects of soil nitrogen and plant traits (leaf nitrogen and shrub size) were controlled. Variations in RII and ISR across the two nurse species were explained better by δ13C than by smoothly changing climatic factors along elevation. At the transition zone between the upper limit of C. gerardiana (4100 m) and the lower limit of C. versicolor (4200 m), RII and ISR were much higher in C. versicolor than in C. gerardiana under a similar MI. Such an abrupt increase in facilitation induced by nurse species replacement was well tracked by the variation of δ13C. Conclusions Water availability and nurse species replacement are crucial to shaping facilitation patterns by legume shrubs along a large elevation gradient in dry mountainous regions, such as the Trans-Himalayas. Turnover in nurse species under global change might significantly alter the pattern of nurse plant facilitation associated with water availability, which can be well tracked by leaf δ13C. [ABSTRACT FROM AUTHOR]

Published
2023
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42. RecruitNet: A global database of plant recruitment networks

Author

Verdú, Miguel, primary, Garrido, Jose L., additional, Alcántara, Julio M., additional, Montesinos‐Navarro, Alicia, additional, Aguilar, Salomón, additional, Aizen, Marcelo A., additional, Al‐Namazi, Ali A., additional, Alifriqui, Mohamed, additional, Allen, David, additional, Anderson‐Teixeira, Kristina J., additional, Armas, Cristina, additional, Bastida, Jesús M., additional, Bellido, Tono, additional, Bonanomi, Giuliano, additional, Paterno, Gustavo B., additional, Briceño, Herbert, additional, de Oliveira, Ricardo A. C., additional, Campoy, Josefina G., additional, Chaieb, Ghassen, additional, Chu, Chengjin, additional, Collins, Sarah E., additional, Condit, Richard, additional, Constantinou, Elena, additional, Degirmenci, Cihan Ü., additional, Delalandre, Leo, additional, Duarte, Milen, additional, Faife, Michel, additional, Fazlioglu, Fatih, additional, Fernando, Edwino S., additional, Flores, Joel, additional, Flores‐Olvera, Hilda, additional, Fodor, Ecaterina, additional, Ganade, Gislene, additional, Garcia, María Begoña, additional, García‐Fayos, Patricio, additional, Gavini, Sabrina S., additional, Goberna, Marta, additional, Gómez‐Aparicio, Lorena, additional, González‐Pendás, Enrique, additional, González‐Robles, Ana, additional, Hubbell, Stephen P., additional, İpekdal, Kahraman, additional, Jorquera, María J., additional, Kikvidze, Zaal, additional, Kütküt, Pınar, additional, Ledo, Alicia, additional, Lendínez, Sandra, additional, Li, Buhang, additional, Liu, Hanlun, additional, Lloret, Francisco, additional, López, Ramiro P., additional, López‐García, Álvaro, additional, Lortie, Christopher J., additional, Losapio, Gianalberto, additional, Lutz, James A., additional, Luzuriaga, Arantzazu L., additional, Máliš, František, additional, Manrique, Esteban, additional, Manzaneda, Antonio J., additional, Marcilio‐Silva, Vinicius, additional, Michalet, Richard, additional, Molina‐Venegas, Rafael, additional, Navarro‐Cano, José Antonio, additional, Novotny, Vojtech, additional, Olesen, Jens M., additional, Ortiz‐Brunel, Juan P., additional, Pajares‐Murgó, María, additional, Parissis, Nikolas, additional, Parker, Geoffrey, additional, Perea, Antonio J., additional, Pérez‐Hernández, Vidal, additional, Pérez‐Navarro, María Ángeles, additional, Pistón, Nuria, additional, Pizarro‐Carbonell, Elisa, additional, Prieto, Iván, additional, Prieto‐Rubio, Jorge, additional, Pugnaire, Francisco I., additional, Ramírez, Nelson, additional, Retuerto, Rubén, additional, Rey, Pedro J., additional, Rodriguez Ginart, Daniel A., additional, Rodríguez‐Sánchez, Mariana, additional, Sánchez‐Martín, Ricardo, additional, Schöb, Christian, additional, Tavşanoğlu, Çağatay, additional, Tedoradze, Giorgi, additional, Tercero‐Araque, Amanda, additional, Tielbörger, Katja, additional, Touzard, Blaise, additional, Tüfekcioğlu, İrem, additional, Turkis, Sevda, additional, Usero, Francisco M., additional, Usta, Nurbahar, additional, Valiente‐Banuet, Alfonso, additional, Vargas‐Colin, Alexia, additional, Vogiatzakis, Ioannis, additional, and Zamora, Regino, additional

Published
2023
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43. The effects of foundation species on community assembly: a global study on alpine cushion plant communities

Author

Kikvidze, Zaal, Brooker, Robin W., Butterfield, Bradley J., Callaway, Ragan M., Cavieres, Lohengrin A., Cook, Bradley J., Lortie, Christopher J., Michalet, Richard, Pugnaire, Francisco I., Xiao, Sa, Anthelme, Fabien, Björk, Robert G., Cranston, Brittany H., Gavilán, Rosario G., Kanka, Róbert, Lingua, Emanuele, Maalouf, Jean-Paul, Noroozi, Jalil, Parajuli, Rabindra, Phoenix, Gareth K., Reid, Anya, Ridenour, Wendy M., Rixen, Christian, and Schöb, Christian

Published
2015

46. Assessing the accuracy of paired and random sampling for quantifying plant–plant interactions in natural communities

Author

Michalet, Richard, primary, Losapio, Gianalberto, additional, Kikvidze, Zaal, additional, Brooker, Rob W., additional, Butterfield, Bradley J., additional, Callaway, Ragan M., additional, Cavieres, Lohengrin A., additional, Lortie, Christopher J., additional, Pugnaire, Francisco I., additional, and Schöb, Christian, additional

Published
2022
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47. Azorella Cushion Plants and Aridity are Important Drivers of Soil Microbial Communities in Andean Ecosystems

Author

Fundação para a Ciência e a Tecnologia (Portugal), Banco Santander, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Comisión Nacional de Investigación Científica y Tecnológica (Chile), Instituto de Ecología y Biodiversidad (Chile), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Genyo, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Pugnaire, Francisco I. [0000-0002-1227-6827 ], Armas, Cristina [0000-0003-0356-8075], Rodríguez-Echeverría, Susana, Delgado-Baquerizo, Manuel, Morillo, José A., Gaxiola, Aurora, Manzano, Marlene, Marquet, Pablo A., González, Leticia, Cavieres, Lohengrin A., Pugnaire, Francisco I., Armas, Cristina, Fundação para a Ciência e a Tecnologia (Portugal), Banco Santander, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), Comisión Nacional de Investigación Científica y Tecnológica (Chile), Instituto de Ecología y Biodiversidad (Chile), Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Genyo, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Pugnaire, Francisco I. [0000-0002-1227-6827 ], Armas, Cristina [0000-0003-0356-8075], Rodríguez-Echeverría, Susana, Delgado-Baquerizo, Manuel, Morillo, José A., Gaxiola, Aurora, Manzano, Marlene, Marquet, Pablo A., González, Leticia, Cavieres, Lohengrin A., Pugnaire, Francisco I., and Armas, Cristina

Abstract

Cushion plants are specialized keystone species of alpine environments that can have a positive effect on ecosystem structure and function. However, we know relatively little about how cushion plants regulate the diversity and composition of soil microbial communities, major drivers of soil processes and ecosystem functioning. Identifying what factors drive the diversity and composition of soil microbial communities in high-elevation ecosystems is also fundamental to predict how global changes will affect their conservation and the services and functions they provide. Thus, we sampled four sites along the southern Andes following the vegetation belt of Azorella cushion species. The field sites spread along a latitudinal gradient and had contrasting levels of aridity, UV-B radiation, mean temperature and soil properties. Overall, Azorella, as well as aridity and UV-B radiation, were the major drivers of the distribution, composition and diversity of soil microbial communities in the studied ecosystems of the Chilean Andes. UV-B radiation affected particularly soil fungi, while soil properties such as pH, total C and N content, essential predictors of microbial diversity globally, had a much lower effect on the composition of soil microbial communities. Understanding the factors driving the structure and composition of microbial communities, particularly the role of cushion plants and the feedbacks between plant, climate and soil is of uttermost importance for the preservation of the functionality of high-elevation ecosystems threatened by climate change. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.

Published
2021

48. Are complementarity effects of species richness on productivity the strongest in species-rich communities?

Author

Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Michalet, Richard [0000-0002-6617-4789], Delerue, Florian [0000-0002-9809-5321], Liancourt, Pierre [0000-0002-3109-8755], Pugnaire, Francisco I. [0000-0002-1227-6827], Michalet, Richard, Delerue, Florian, Liancourt, Pierre, Pugnaire, Francisco I., Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España), Michalet, Richard [0000-0002-6617-4789], Delerue, Florian [0000-0002-9809-5321], Liancourt, Pierre [0000-0002-3109-8755], Pugnaire, Francisco I. [0000-0002-1227-6827], Michalet, Richard, Delerue, Florian, Liancourt, Pierre, and Pugnaire, Francisco I.

Abstract

How the relationship between species richness and productivity changes along environmental gradients remains poorly understood. We examined the context dependency of complementarity processes underpinning this relationship (biotic feedbacks, resource partitioning and facilitation) using the framework of Grime's (1973) humped-back model. We considered several scenarios of variation in competition and facilitation along environmental gradients, either monotonic with the most common or intense facilitation at the most abiotically severe end of gradients or nonlinear with the strongest facilitation at intermediate positions along gradients. How competition shifts to facilitation along environmental gradients is a key for determining where the effect of species richness on productivity occurs. Based on the literature, the original Stress Gradient Hypothesis would likely predict that complementarity effects should be the greatest, or the most important, in the most abiotically stressful environments. Alternatively, both the ‘collapse of facilitation’ and the ‘shift back to competition’ scenarios predict that the highest overall complementary effects on productivity, not biomass, would most likely occur at intermediate positions along environmental stress gradients, but this might vary depending on the source of stress. This latter prediction is consistent with a great deal of literature on natural gradients of productivity and species richness. Synthesis. Our predictions illustrate the importance of better understanding the context dependency of complementarity processes and the key role of facilitation along environmental gradients to better focus conservation efforts where ecosystem functioning is more likely to be negatively affected by species loss, in particular in species-rich communities.

Published
2021

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