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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Pollination outcomes reveal negative density-dependence coupled with interspecific facilitation among plants

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Author(s):
Bergamo, Pedro J. [1, 2] ; Streher, Nathalia Susin [3] ; Traveset, Anna [1] ; Wolowski, Marina [4] ; Sazima, Marlies [5]
Total Authors: 5
Affiliation:
[1] CSIC UIB, Mediterranean Inst Adv Studies, Miguel Marques St 21, Mallorca POB 07190, Esporles - Spain
[2] Univ Estadual Campinas, Grad Program Ecol, Monteiro Lobato St 255, Campinas POB 13083-862, Campinas, SP - Brazil
[3] Univ Estadual Campinas, Grad Program Plant Biol, Monteiro Lobato St 255, Campinas POB 13083-862, Campinas, SP - Brazil
[4] Univ Fed Alfenas, Inst Nat Sci, Gabriel Monteiro Silva St 700, Alfenas, MG - Brazil
[5] Univ Estadual Campinas, Inst Biol, Dept Plant Biol, Monteiro Lobato St 255, Campinas POB 13083-862, Campinas, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: ECOLOGY LETTERS; OCT 2019.
Web of Science Citations: 10
Abstract

Pollination is thought to be under positive density-dependence, destabilising plant coexistence by conferring fitness disadvantages to rare species. Such disadvantage is exacerbated by interspecific competition but can be mitigated by facilitation and intraspecific competition. However, pollinator scarcity should enhance intraspecific plant competition and impose disadvantage on common over rare species (negative density-dependence, NDD). We assessed pollination proxies (visitation rate, pollen receipt, pollen tubes) in a generalised plant community and related them to conspecific and heterospecific density, expecting NDD and interspecific facilitation due to the natural pollinator scarcity. Contrary to usual expectations, all proxies indicated strong intraspecific competition for common plants. Moreover interspecific facilitation prevailed and was stronger for rare than for common plants. Both NDD and interspecific facilitation were modulated by specialisation, floral display and pollinator group. The combination of intraspecific competition and interspecific facilitation fosters plant coexistence, suggesting that pollination can be a niche axis maintaining plant diversity. (AU)

FAPESP's process: 18/02996-0 - Ecological and evolutionary drivers of pollen limitation in a Mediterranean island trophic network
Grantee:Pedro Joaquim Bergamo
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 16/06434-0 - Plant-pollinator interactions in communities and the assembly of functional traits and of the reproductive success
Grantee:Pedro Joaquim Bergamo
Support Opportunities: Scholarships in Brazil - Doctorate