Search

Your search keyword '"Quero Pérez, José Luis [0000-0001-5553-506X]"' showing total 7 results
Start Over Author "Quero Pérez, José Luis [0000-0001-5553-506X]"
7 results on '"Quero Pérez, José Luis [0000-0001-5553-506X]"'

1. Intransitive competition is widespread in plant communities and maintains their species richness

Author

European Commission, Foundation for Polish Science, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Manning, Peter [0000-0002-7940-2023], Boch, Steffen [0000-0003-2814-5343], Bowker, Matthew A. [0000-0002-5891-0264], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Quero Pérez, José Luis [0000-0001-5553-506X], Gallardo, Antonio [0000-0002-2674-4265], Ochoa, Victoria [0000-0002-2055-2094], Soliveres, Santiago, Maestre, Fernando T., Ulrich, Werner, Manning, Peter, Boch, Steffen, Bowker, Matthew A., Prati, Daniel, Delgado-Baquerizo, Manuel, Quero Pérez, José Luis, Schöning, Ingo, Gallardo, Antonio, Weisser, Wolfgang, Müller, Jörg, Socher, Stephanie A., García-Gómez, Miguel, Ochoa, Victoria, Schulze, Ernst‐Detlef, Fischer, Markus, Allan, Eric, European Commission, Foundation for Polish Science, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Manning, Peter [0000-0002-7940-2023], Boch, Steffen [0000-0003-2814-5343], Bowker, Matthew A. [0000-0002-5891-0264], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Quero Pérez, José Luis [0000-0001-5553-506X], Gallardo, Antonio [0000-0002-2674-4265], Ochoa, Victoria [0000-0002-2055-2094], Soliveres, Santiago, Maestre, Fernando T., Ulrich, Werner, Manning, Peter, Boch, Steffen, Bowker, Matthew A., Prati, Daniel, Delgado-Baquerizo, Manuel, Quero Pérez, José Luis, Schöning, Ingo, Gallardo, Antonio, Weisser, Wolfgang, Müller, Jörg, Socher, Stephanie A., García-Gómez, Miguel, Ochoa, Victoria, Schulze, Ernst‐Detlef, Fischer, Markus, and Allan, Eric

Abstract

Intransitive competition networks, those in which there is no single best competitor, may ensure species coexistence. However, their frequency and importance in maintaining diversity in real-world ecosystems remain unclear. We used two large data sets from drylands and agricultural grasslands to assess: (1) the generality of intransitive competition, (2) intransitivity–richness relationships and (3) effects of two major drivers of biodiversity loss (aridity and land-use intensification) on intransitivity and species richness. Intransitive competition occurred in > 65% of sites and was associated with higher species richness. Intransitivity increased with aridity, partly buffering its negative effects on diversity, but was decreased by intensive land use, enhancing its negative effects on diversity. These contrasting responses likely arise because intransitivity is promoted by temporal heterogeneity, which is enhanced by aridity but may decline with land-use intensity. We show that intransitivity is widespread in nature and increases diversity, but it can be lost with environmental homogenisation.

Published
2015

2. Plant diversity and ecosystem multifunctionality peak at intermediate levels of woody cover in global drylands

Author

European Commission, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Eldridge, David J. [0000-0002-2191-486X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Quero Pérez, José Luis [0000-0001-5553-506X], Gallardo, Antonio [0000-0002-2674-4265], Soliveres, Santiago, Maestre, Fernando T., Eldridge, David J., Delgado-Baquerizo, Manuel, Quero Pérez, José Luis, Browker, Matthew A., Gallardo, Antonio, European Commission, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Eldridge, David J. [0000-0002-2191-486X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Quero Pérez, José Luis [0000-0001-5553-506X], Gallardo, Antonio [0000-0002-2674-4265], Soliveres, Santiago, Maestre, Fernando T., Eldridge, David J., Delgado-Baquerizo, Manuel, Quero Pérez, José Luis, Browker, Matthew A., and Gallardo, Antonio

Abstract

Aim The global spread of woody plants into grasslands is predicted to increase over the coming century. While there is general agreement regarding the anthropogenic causes of this phenomenon, its ecological consequences are less certain. We analysed how woody vegetation of differing cover affects plant diversity (richness and evenness) and the surrogates of multiple ecosystem processes (multifunctionality) in global drylands, and how these change with aridity. Location Two hundred and twenty-four dryland sites from all continents except Antarctica, widely differing in their environmental conditions (from arid to dry-subhumid sites) and relative woody cover (from 0 to 100%). Methods Using a standardized field survey, we measured the cover, richness and evenness of perennial vegetation. At each site, we measured 14 soil variables related to fertility and the build-up of nutrient pools. These variables are critical for maintaining ecosystem functioning in drylands. Results Species richness and ecosystem multifunctionality were strongly related to woody vegetation, with both variables peaking at a relative woody cover (RWC) of 41–60%. This relationship shifted with aridity. We observed linear positive effects of RWC in dry-subhumid sites. These positive trends shifted to hump-shaped RWC–diversity and multifunctionality relationships under semi-arid environments. Finally, hump-shaped (richness, evenness) or linear negative (multifunctionality) effects of RWC were found under the most arid conditions. Main conclusions Plant diversity and multifunctionality peaked at intermediate levels of woody cover, although this relationship became increasingly positive in wetter environments. This comprehensive study accounts for multiple ecosystem attributes across a range of levels of woody cover and environmental conditions. Our results help us to reconcile contrasting views of woody encroachment found in the current literature and can be used to improve predictions of the likely e

Published
2014

3. Functional traits determine plant co-occurrence more than environment or evolutionary relatedness in global drylands

Author

European Commission, Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Eldridge, David J. [0000-0002-2191-486X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], García-Palacios, Pablo [0000-0002-6367-4761], Gozalo, Beatriz [0000-0003-3082-4695], Ochoa, Victoria [0000-0002-2055-2094], Soliveres, Santiago, Maestre, Fernando T., Browker, Matthew A., Torices, Rubén, Quero Pérez, José Luis, García-Gómez, Miguel, Cabrera, Omar, Cea, Alex, Coaguila, Daniel, Eldridge, David J., Hemmings, Frank, Monerris, Jorge, Tighe, Matthew, Delgado-Baquerizo, Manuel, Escolar, Cristina, García-Palacios, Pablo, Gozalo, Beatriz, Ochoa, Victoria, Blones, Julio, Derak, Mchich, Ghiloufi, Wahida, Gutiérrez, Julio R., Hernández, Rosa M., Noumi, Zouhaier, European Commission, Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo, Soliveres, Santiago [0000-0001-9661-7192], Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Eldridge, David J. [0000-0002-2191-486X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], García-Palacios, Pablo [0000-0002-6367-4761], Gozalo, Beatriz [0000-0003-3082-4695], Ochoa, Victoria [0000-0002-2055-2094], Soliveres, Santiago, Maestre, Fernando T., Browker, Matthew A., Torices, Rubén, Quero Pérez, José Luis, García-Gómez, Miguel, Cabrera, Omar, Cea, Alex, Coaguila, Daniel, Eldridge, David J., Hemmings, Frank, Monerris, Jorge, Tighe, Matthew, Delgado-Baquerizo, Manuel, Escolar, Cristina, García-Palacios, Pablo, Gozalo, Beatriz, Ochoa, Victoria, Blones, Julio, Derak, Mchich, Ghiloufi, Wahida, Gutiérrez, Julio R., Hernández, Rosa M., and Noumi, Zouhaier

Abstract

Plant–plant interactions are driven by environmental conditions, evolutionary relationships (ER) and the functional traits of the plants involved. However, studies addressing the relative importance of these drivers are rare, but crucial to improve our predictions of the effects of plant–plant interactions on plant communities and of how they respond to differing environmental conditions. To analyze the relative importance of – and interrelationships among – these factors as drivers of plant–plant interactions, we analyzed perennial plant co-occurrence at 106 dryland plant communities established across rainfall gradients in nine countries. We used structural equation modelling to disentangle the relationships between environmental conditions (aridity and soil fertility), functional traits extracted from the literature, and ER, and to assess their relative importance as drivers of the 929 pairwise plant–plant co-occurrence levels measured. Functional traits, specifically facilitated plants’ height and nurse growth form, were of primary importance, and modulated the effect of the environment and ER on plant–plant interactions. Environmental conditions and ER were important mainly for those interactions involving woody and graminoid nurses, respectively. The relative importance of different plant–plant interaction drivers (ER, functional traits, and the environment) varied depending on the region considered, illustrating the difficulty of predicting the outcome of plant–plant interactions at broader spatial scales. In our global-scale study on drylands, plant–plant interactions were more strongly related to functional traits of the species involved than to the environmental variables considered. Thus, moving to a trait-based facilitation/competition approach help to predict that: (1) positive plant–plant interactions are more likely to occur for taller facilitated species in drylands, and (2) plant–plant interactions within woody-dominated ecosystems might be more sen

Published
2014

4. Decoupling of soil nutrient cycles as a function of aridity in global drylands

Author

European Commission, Ministerio de Ciencia e Innovación (España), Universidad Pablo de Olavide, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T. [0000-0002-7434-4856], Gallardo, Antonio [0000-0002-2674-4265], Bowker, Matthew A. [0000-0002-5891-0264], Quero Pérez, José Luis [0000-0001-5553-506X], Ochoa, Victoria [0000-0002-2055-2094], Gozalo, Beatriz [0000-0003-3082-4695], García-Palacios, Pablo [0000-0002-6367-4761], Berdugo, Miguel [0000-0003-1053-8907], Eldridge, David J. [0000-0002-2191-486X], Gaitán, Juan J. [0000-0003-2889-1418], Liu, Jushan [0000-0001-7768-914X], Delgado-Baquerizo, Manuel, Maestre, Fernando T., Gallardo, Antonio, Bowker, Matthew A., Wallenstein, Matthew D., Quero Pérez, José Luis, Ochoa, Victoria, García-Gómez, Miguel, Soliveres, Santiago, García-Palacios, Pablo, Berdugo, Miguel, Valencia, Enrique, Escolar, Cristina, Arredondo, Tulio, Barraza-Zepeda, Claudia, Bran, Donaldo, Carreira, José A., Chaïeb, Mohamed, Conceição, Abel A., Derak, Mchich, Eldridge, David J., Escudero, Adrián, Espinosa, Carlos, Gaitán, Juan J., Gatica, Gabriel, Gómez-González, Susana, Guzmán, Elizabeth, Gutiérrez, Julio R., Florentino, Adriana, Hepper; Estela, Hernández, Rosa M., Huber-Sannwald, Elisabeth, Jankju, Mohammad, Liu, Jushan, Mau, Rebecca L., Miriti, Maria, Monerris, Jorge, Naseri, Kamal, Noumi, Zouhaier, Polo, Vicente, Prina, Aníbal, Pucheta, Eduardo, Ramírez, Elizabeth, Ramírez-Collantes, David A., Romão, Roberto L., Tighe, Matthew, Torres, Duilio, Torres-Díaz, Cristian, Ungar, Eugene D., Val, James, Wamiti, Wanyoike, Wang, Deli, Zaady, Eli, European Commission, Ministerio de Ciencia e Innovación (España), Universidad Pablo de Olavide, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T. [0000-0002-7434-4856], Gallardo, Antonio [0000-0002-2674-4265], Bowker, Matthew A. [0000-0002-5891-0264], Quero Pérez, José Luis [0000-0001-5553-506X], Ochoa, Victoria [0000-0002-2055-2094], Gozalo, Beatriz [0000-0003-3082-4695], García-Palacios, Pablo [0000-0002-6367-4761], Berdugo, Miguel [0000-0003-1053-8907], Eldridge, David J. [0000-0002-2191-486X], Gaitán, Juan J. [0000-0003-2889-1418], Liu, Jushan [0000-0001-7768-914X], Delgado-Baquerizo, Manuel, Maestre, Fernando T., Gallardo, Antonio, Bowker, Matthew A., Wallenstein, Matthew D., Quero Pérez, José Luis, Ochoa, Victoria, García-Gómez, Miguel, Soliveres, Santiago, García-Palacios, Pablo, Berdugo, Miguel, Valencia, Enrique, Escolar, Cristina, Arredondo, Tulio, Barraza-Zepeda, Claudia, Bran, Donaldo, Carreira, José A., Chaïeb, Mohamed, Conceição, Abel A., Derak, Mchich, Eldridge, David J., Escudero, Adrián, Espinosa, Carlos, Gaitán, Juan J., Gatica, Gabriel, Gómez-González, Susana, Guzmán, Elizabeth, Gutiérrez, Julio R., Florentino, Adriana, Hepper; Estela, Hernández, Rosa M., Huber-Sannwald, Elisabeth, Jankju, Mohammad, Liu, Jushan, Mau, Rebecca L., Miriti, Maria, Monerris, Jorge, Naseri, Kamal, Noumi, Zouhaier, Polo, Vicente, Prina, Aníbal, Pucheta, Eduardo, Ramírez, Elizabeth, Ramírez-Collantes, David A., Romão, Roberto L., Tighe, Matthew, Torres, Duilio, Torres-Díaz, Cristian, Ungar, Eugene D., Val, James, Wamiti, Wanyoike, Wang, Deli, and Zaady, Eli

Abstract

The biogeochemical cycles of carbon (C), nitrogen (N) and phosphorus (P) are interlinked by primary production, respiration and decomposition in terrestrial ecosystems1. It has been suggested that the C, N and P cycles could become uncoupled under rapid climate change because of the different degrees of control exerted on the supply of these elements by biological and geochemical processes1,2,3,4,5. Climatic controls on biogeochemical cycles are particularly relevant in arid, semi-arid and dry sub-humid ecosystems (drylands) because their biological activity is mainly driven by water availability6,7,8. The increase in aridity predicted for the twenty-first century in many drylands worldwide9,10,11 may therefore threaten the balance between these cycles, differentially affecting the availability of essential nutrients12,13,14. Here we evaluate how aridity affects the balance between C, N and P in soils collected from 224 dryland sites from all continents except Antarctica. We find a negative effect of aridity on the concentration of soil organic C and total N, but a positive effect on the concentration of inorganic P. Aridity is negatively related to plant cover, which may favour the dominance of physical processes such as rock weathering, a major source of P to ecosystems, over biological processes that provide more C and N, such as litter decomposition12,13,14. Our findings suggest that any predicted increase in aridity with climate change will probably reduce the concentrations of N and C in global drylands, but increase that of P. These changes would uncouple the C, N and P cycles in drylands and could negatively affect the provision of key services provided by these ecosystems.

Published
2013

5. Changes in biocrust cover drive carbon cycle responses to climate change in drylands

Author

European Commission, Ministerio de Economía y Competitividad (España), Junta de Andalucía, Consejo Superior de Investigaciones Científicas (España), British Ecological Society, Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Ochoa, Victoria [0000-0002-2055-2094], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Gallardo, Antonio [0000-0002-2674-4265], Maestre, Fernando T., Escolar, Cristina, Ladrón de Guevara, Mónica, Quero Pérez, José Luis, Lázaro, Roberto, Delgado-Baquerizo, Manuel, Ochoa, Victoria, Berdugo, Miguel, Gozalo, Beatriz, Gallardo, Antonio, European Commission, Ministerio de Economía y Competitividad (España), Junta de Andalucía, Consejo Superior de Investigaciones Científicas (España), British Ecological Society, Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Ochoa, Victoria [0000-0002-2055-2094], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Gallardo, Antonio [0000-0002-2674-4265], Maestre, Fernando T., Escolar, Cristina, Ladrón de Guevara, Mónica, Quero Pérez, José Luis, Lázaro, Roberto, Delgado-Baquerizo, Manuel, Ochoa, Victoria, Berdugo, Miguel, Gozalo, Beatriz, and Gallardo, Antonio

Abstract

Dryland ecosystems account for ca. 27% of global soil organic carbon (C) reserves, yet it is largely unknown how climate change will impact C cycling and storage in these areas. In drylands, soil C concentrates at the surface, making it particularly sensitive to the activity of organisms inhabiting the soil uppermost levels, such as communities dominated by lichens, mosses, bacteria and fungi (biocrusts). We conducted a full factorial warming and rainfall exclusion experiment at two semiarid sites in Spain to show how an average increase of air temperature of 2–3 °C promoted a drastic reduction in biocrust cover (ca. 44% in 4 years). Warming significantly increased soil CO2 efflux, and reduced soil net CO2 uptake, in biocrust-dominated microsites. Losses of biocrust cover with warming through time were paralleled by increases in recalcitrant C sources, such as aromatic compounds, and in the abundance of fungi relative to bacteria. The dramatic reduction in biocrust cover with warming will lessen the capacity of drylands to sequester atmospheric CO2. This decrease may act synergistically with other warming-induced effects, such as the increase in soil CO2 efflux and the changes in microbial communities to alter C cycling in drylands, and to reduce soil C stocks in the mid to long term.

Published
2013

6. Aridity Modulates N Availability in Arid and Semiarid Mediterranean Grasslands

Author

European Commission, Ministerio de Ciencia e Innovación (España), Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T. [0000-0002-7434-4856], Gallardo, Antonio [0000-0002-2674-4265], Quero Pérez, José Luis [0000-0001-5553-506X], Ochoa, Victoria [0000-0002-2055-2094], García-Palacios, Pablo [0000-0002-6367-4761], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Delgado-Baquerizo, Manuel, Maestre, Fernando T., Gallardo, Antonio, Quero Pérez, José Luis, Ochoa, Victoria, García-Gómez, Miguel, Escolar. Cristina, García-Palacios, Pablo, Berdugo, Miguel, Valencia, Enrique, Gozalo, Beatriz, Noumi, Zouhaier, Derak, Mchich, Wallenstein, Matthew D., European Commission, Ministerio de Ciencia e Innovación (España), Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T. [0000-0002-7434-4856], Gallardo, Antonio [0000-0002-2674-4265], Quero Pérez, José Luis [0000-0001-5553-506X], Ochoa, Victoria [0000-0002-2055-2094], García-Palacios, Pablo [0000-0002-6367-4761], Berdugo, Miguel [0000-0003-1053-8907], Gozalo, Beatriz [0000-0003-3082-4695], Delgado-Baquerizo, Manuel, Maestre, Fernando T., Gallardo, Antonio, Quero Pérez, José Luis, Ochoa, Victoria, García-Gómez, Miguel, Escolar. Cristina, García-Palacios, Pablo, Berdugo, Miguel, Valencia, Enrique, Gozalo, Beatriz, Noumi, Zouhaier, Derak, Mchich, and Wallenstein, Matthew D.

Abstract

While much is known about the factors that control each component of the terrestrial nitrogen (N) cycle, it is less clear how these factors affect total N availability, the sum of organic and inorganic forms potentially available to microorganisms and plants. This is particularly true for N-poor ecosystems such as drylands, which are highly sensitive to climate change and desertification processes that can lead to the loss of soil nutrients such as N. We evaluated how different climatic, abiotic, plant and nutrient related factors correlate with N availability in semiarid Stipa tenacissima grasslands along a broad aridity gradient from Spain to Tunisia. Aridity had the strongest relationship with N availability, suggesting the importance of abiotic controls on the N cycle in drylands. Aridity appeared to modulate the effects of pH, plant cover and organic C (OC) on N availability. Our results suggest that N transformation rates, which are largely driven by variations in soil moisture, are not the direct drivers of N availability in the studied grasslands. Rather, the strong relationship between aridity and N availability could be driven by indirect effects that operate over long time scales (decades to millennia), including both biotic (e.g. plant cover) and abiotic (e.g. soil OC and pH). If these factors are in fact more important than short-term effects of precipitation on N transformation rates, then we might expect to observe a lagged decrease in N availability in response to increasing aridity. Nevertheless, our results suggest that the increase in aridity predicted with ongoing climate change will reduce N availability in the Mediterranean basin, impacting plant nutrient uptake and net primary production in semiarid grasslands throughout this region.

Published
2013

7. Plant species richness and ecosystem multifunctionality in global drylands

Author

European Commission, Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo, Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T., Quero Pérez, José Luis, Gotelli, Nicholas J., Escudero, Adrián, Ochoa, Victoria, Delgado-Baquerizo, Manuel, Veiga, José Pablo, Zaady, Eli, European Commission, Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo, Maestre, Fernando T. [0000-0002-7434-4856], Quero Pérez, José Luis [0000-0001-5553-506X], Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Maestre, Fernando T., Quero Pérez, José Luis, Gotelli, Nicholas J., Escudero, Adrián, Ochoa, Victoria, Delgado-Baquerizo, Manuel, Veiga, José Pablo, and Zaady, Eli

Abstract

Experiments suggest that biodiversity enhances the ability of ecosystems to maintain multiple functions, such as carbon storage, productivity, and the buildup of nutrient pools (multifunctionality). However, the relationship between biodiversity and multifunctionality has never been assessed globally in natural ecosystems. We report here on a global empirical study relating plant species richness and abiotic factors to multifunctionality in drylands, which collectively cover 41% of Earth’s land surface and support over 38% of the human population. Multifunctionality was positively and significantly related to species richness. The best-fitting models accounted for over 55% of the variation in multifunctionality and always included species richness as a predictor variable. Our results suggest that the preservation of plant biodiversity is crucial to buffer negative effects of climate change and desertification in drylands.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results