Plant species richness and ecosystem multifunctionality in global drylands. 2012

Fernando T Maestre, and José L Quero, and Nicholas J Gotelli, and Adrián Escudero, and Victoria Ochoa, and Manuel Delgado-Baquerizo, and Miguel García-Gómez, and Matthew A Bowker, and Santiago Soliveres, and Cristina Escolar, and Pablo García-Palacios, and Miguel Berdugo, and Enrique Valencia, and Beatriz Gozalo, and Antonio Gallardo, and Lorgio Aguilera, and Tulio Arredondo, and Julio Blones, and Bertrand Boeken, and Donaldo Bran, and Abel A Conceição, and Omar Cabrera, and Mohamed Chaieb, and McHich Derak, and David J Eldridge, and Carlos I Espinosa, and Adriana Florentino, and Juan Gaitán, and M Gabriel Gatica, and Wahida Ghiloufi, and Susana Gómez-González, and Julio R Gutiérrez, and Rosa M Hernández, and Xuewen Huang, and Elisabeth Huber-Sannwald, and Mohammad Jankju, and Maria Miriti, and Jorge Monerris, and Rebecca L Mau, and Ernesto Morici, and Kamal Naseri, and Abelardo Ospina, and Vicente Polo, and Aníbal Prina, and Eduardo Pucheta, and David A Ramírez-Collantes, and Roberto Romão, and Matthew Tighe, and Cristian Torres-Díaz, and James Val, and José P Veiga, and Deli Wang, and Eli Zaady
Área de Biodiversidad y Conservación, Departamento de Biología y Geología, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán Sin Número, 28933 Móstoles, Spain. fernando.maestre@urjc.es

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.

UI MeSH Term Description Entries
D010944 Plants Multicellular, eukaryotic life forms of kingdom Plantae. Plants acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations. It is a non-taxonomical term most often referring to LAND PLANTS. In broad sense it includes RHODOPHYTA and GLAUCOPHYTA along with VIRIDIPLANTAE. Plant
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D002980 Climate The longterm manifestations of WEATHER. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Climates
D003247 Conservation of Natural Resources The protection, preservation, restoration, and rational use of all resources in the total environment. Carrying Capacity,Deforestation,Desertification,Environmental Protection,Natural Resources Conservation,Protection, Environmental,Capacities, Carrying,Capacity, Carrying,Carrying Capacities,Conservation, Natural Resources
D005843 Geography The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed) Factor, Geographic,Factors, Geographic,Geographic Factor,Geographic Factors,Geography, Human,Human Geography
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D015233 Models, Statistical Statistical formulations or analyses which, when applied to data and found to fit the data, are then used to verify the assumptions and parameters used in the analysis. Examples of statistical models are the linear model, binomial model, polynomial model, two-parameter model, etc. Probabilistic Models,Statistical Models,Two-Parameter Models,Model, Statistical,Models, Binomial,Models, Polynomial,Statistical Model,Binomial Model,Binomial Models,Model, Binomial,Model, Polynomial,Model, Probabilistic,Model, Two-Parameter,Models, Probabilistic,Models, Two-Parameter,Polynomial Model,Polynomial Models,Probabilistic Model,Two Parameter Models,Two-Parameter Model
D017753 Ecosystem A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed) Ecosystems,Biome,Ecologic System,Ecologic Systems,Ecological System,Habitat,Niche, Ecological,System, Ecological,Systems, Ecological,Biomes,Ecological Niche,Ecological Systems,Habitats,System, Ecologic,Systems, Ecologic
D044822 Biodiversity The variety of all native living organisms and their various forms and interrelationships. Biological Diversity,Diversity, Biological
D055593 Geological Phenomena Structures, properties, and processes involving the inanimate matter of Earth. Geological Concepts,Geological Processes,Geological Phenomenon,Geological Process,Geophysical Phenomena,Geophysical Process,Geophysical Processes,Concept, Geological,Concepts, Geological,Geological Concept,Phenomena, Geological,Phenomena, Geophysical,Phenomenon, Geological,Process, Geological,Process, Geophysical,Processes, Geological,Processes, Geophysical

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