Interactions among interactions: The dynamical consequences of antagonism between mutualists
AffiliationUniv Arizona, Dept Ecol & Evolutionary Biol
Univ Arizona, Paris Sci & Lettres Univ, Int Res Lab Interdisciplinary Global Environm Stu
Stage-structured population dynamics
MetadataShow full item record
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
CitationYule, K. M., Johnson, C. A., Bronstein, J. L., & Ferrière, R. (2020). Interactions among interactions: The dynamical consequences of antagonism between mutualists. Journal of Theoretical Biology, 110334.
JournalJournal of theoretical biology
RightsCopyright © 2020 Elsevier Ltd. All rights reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractSpecies often interact with multiple mutualistic partners that provide functionally different benefits and/or that interact with different life-history stages. These functionally different partners, however, may also interact directly with one another in other ways, indirectly altering net outcomes and persistence of the mutualistic system as a whole. We present a population dynamical model of a three-species system involving antagonism between species sharing a mutualist partner species with two explicit life stages. We find that, regardless of whether the antagonism is predatory or non-consumptive, persistence of the shared mutualist is possible only under a restrictive set of conditions. As the rate of antagonism between the species sharing the mutualist increases, indirect rather than direct interactions increasingly determine species' densities and sometimes result in complex, oscillatory dynamics for all species. Surprisingly, persistence of the mutualistic system is particularly dependent upon the degree to which each of the two mutualistic interactions is specialized. Our work investigates a novel mechanism by which changing ecological conditions can lead to extinction of mutualist partners and provides testable predictions regarding the interactive roles of mutualism and antagonism in net outcomes for species' densities. (C) 2020 Elsevier Ltd. All rights reserved.
Note12 month embargo; available online 31 May 2020
VersionFinal accepted manuscript
- Coexistence of mutualists and non-mutualists in a dual-lattice model.
- Authors: Ezoe H, Ikegawa Y
- Issue date: 2013 Sep 7
- Symbiont interactions in a tripartite mutualism: exploring the presence and impact of antagonism between two fungus-growing ant mutualists.
- Authors: Poulsen M, Currie CR
- Issue date: 2010 Jan 15
- Cheating and the evolutionary stability of mutualisms.
- Authors: Ferriere R, Bronstein JL, Rinaldi S, Law R, Gauduchon M
- Issue date: 2002 Apr 22
- Dynamics of mutualist populations that are demographically open.
- Authors: Thompson AR, Nisbet RM, Schmitt RJ
- Issue date: 2006 Nov
- Interacting guilds: moving beyond the pairwise perspective on mutualisms.
- Authors: Stanton ML
- Issue date: 2003 Oct