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Title: Tripartite networks show that keystone species can multitask
Authors: Timóteo, Sérgio 
Albrecht, Jörg
Rumeu, Beatriz 
Norte, Ana C. 
Traveset, Anna 
Frost, Carol M.
Marchante, Elizabete 
López-Núñez, Francisco A. 
Peralta, Guadalupe
Memmott, Jane 
Olesen, Jens M. 
Costa, Jose M. 
da Silva, Luís P. 
Carvalheiro, Luísa G.
Correia, Marta 
Staab, Michael
Bluthgen, Nico 
Farwig, Nina
Hervías-Parejo, Sandra 
Mironov, Sergei
Echeverría, Susana Rodríguez 
Heleno, Ruben 
Keywords: Eltonian niche; functional niche space; keystone species; keystoneness; meta-analysis; multitrophic interactions; species importance; tripartite networks; tri-trophic networks
Issue Date: 2022
Publisher: Wiley-Blackwell
Project: Conselho Nacional de Desenvolvimento Científico e Tecnológico, Grant/Award Number: PQ 305157/2018-3 and Universal 421668/2018-0; Fundação para a Ciência e a Tecnologia, Grant/ Award Number: CEECIND/00092/2017, CEECIND/00135/2017, CEECIND/02064/2017, DL57/2016/ CP1370/CT89, EUCLIPO-028360, IF/00462/2013, PTDC/AAGREC/ 4896/2014, SFRH/BD/130942/2017, SFRH/BD/96050/2013 and UID/ BIA/04004/2020; Ministerio de Ciencia e Innovación, Grant/Award Number: IJCI-2017- 33475 and PID2020-114324GB- C21; Spanish Ministry of Economy, Industry and Competitiveness, Grant/Award Number: CGL2017-88122- P; Universidad de Cádiz, Grant/Award Number: UCA/REC17VPCT/2021 
Serial title, monograph or event: Functional Ecology
Volume: 37
Issue: 2
Abstract: 1. Keystone species are disproportionately important for ecosystem functioning. While all species engage in multiple interaction types with other species, keystone species importance is often defined based on a single dimension of their Eltonian niche, that is, one type of interaction (e.g. keystone predator). It remains unclear whether the importance of keystone species is unidimensional or if it extends across interaction types. 2. We conducted a meta-analysis of tripartite interaction networks examining whether species importance in one dimension of their niche is mirrored in other niche dimensions, and whether this is associated with interaction outcome, intimacy or species richness. 3. We show that keystone species importance is positively associated across multiple ecological niche dimensions, independently of abundance, and find no evidence that multidimensionality of keystone species is influenced by the explanatory variables. 4. We propose that the role of keystone species extends across multiple ecological niche dimensions, with important implications for ecosystem resilience and conservation.
ISSN: 0269-8463
DOI: 10.1111/1365-2435.14206
Rights: openAccess
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais
I&D CFE - Artigos em Revistas Internacionais
FCTUC Ciências da Vida - Artigos em Revistas Internacionais

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