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Título: | A structural approach for understanding multispecies coexistence |
Autor: | Saavedra, Serguei CSIC ORCID; Rohr, Rudolf P. CSIC ORCID; Bascompte, Jordi CSIC ORCID; Godoy, Óscar CSIC ORCID ; Kraft, Nathan J. B.; Levine, J. M. | Palabras clave: | Community dynamics Feasibility Invasion criterion Multiple competitors Niche and fitnessdifferences Pairwise effects Structural stability. |
Fecha de publicación: | ago-2017 | Editor: | Ecological Society of America John Wiley & Sons |
Citación: | Ecological Monographs 87(3): 470-486 (2017) "Copyright by the Ecological Society of America" |
Resumen: | Although observations of species-rich communities have long served as a primary motivation for research on the coexistence of competitors, the majority of our empirical and theoretical understanding comes from two-species systems. How much of the coexistence observed in species-rich communities results from indirect effects among competitors that only emerge in diverse systems remains poorly understood. Resolving this issue requires simple, scalable, and intuitive metrics for quantifying the conditions for coexistence in multispecies systems, and how these conditions differ from those expected based solely on pairwise interactions. To achieve these aims, we develop a structural approach for studying the set of parameter values compatible with n-species coexistence given the geometric constraints imposed by the matrix of competition coefficients. We derive novel mathematical metrics analogous to stabilizing niche differences and fitness differences that measure the range of conditions compatible with multispecies coexistence, incorporating the effects of indirect interactions emerging in diverse systems. We show how our measures can be used to quantify the extent to which the conditions for coexistence in multispecies systems differ from those that allow pairwise coexistence, and apply the method to a field system of annual plants. We conclude by presenting new challenges and empirical opportunities emerging from our structural metrics of multispecies coexistence. | Descripción: | 17 páginas.-- 9 figuras.-- 55 referencias.-- Additional supporting information may be found online at: http://onlinelibrary.wiley.com/doi/10.1002/ecm.1263/full486 SERGUEI SAAVEDRA ET AL. Ecological Monographs Vol. 87, No. 3 .-- "Copyright by the Ecological Society of America" | Versión del editor: | http://dx.doi.org/10.1002/ecm.1263 | URI: | http://hdl.handle.net/10261/160981 | DOI: | 10.1002/ecm.1263 | ISSN: | 0012-9615 |
Aparece en las colecciones: | (IRNAS) Artículos (EBD) Artículos |
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A_structural_ approach_understanding_2017.pdf | 1,3 MB | Adobe PDF | Visualizar/Abrir |
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