Scopus: 1 citations, Web of Science: 0 citations,
The Moran effect and environmental vetoes : phenological synchrony and drought drive seed production in a Mediterranean oak
Bogdziewicz, Michał (Centre de Recerca Ecològica i Aplicacions Forestals)
Fernández Martínez, Marcos (Centre de Recerca Ecològica i Aplicacions Forestals)
Bonal, Raúl (Instituto de Investigación de la Dehesa)
Belmonte, Jordina (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Espelta Morral, Josep Maria (Centre de Recerca Ecològica i Aplicacions Forestals)

Date: 2017
Abstract: Masting is the highly variable production of synchronized seed crops, and is a common reproductive strategy in plants. Weather has long been recognized as centrally involved in driving seed production in masting plants. However, the theory behind mechanisms connecting weather and seeding variation has only recently been developed, and still lacks empirical evaluation. We used 12-year long seed production data for 255 holm oaks (Quercus ilex), as well as airborne pollen and meteorological data, and tested whether masting is driven by environmental constraints: phenological synchrony and associated pollination efficiency, and drought-related acorn abscission. We found that warm springs resulted in short pollen seasons, and length of the pollen seasons was negatively related to acorn production, supporting the phenological synchrony hypothesis. Furthermore, the relationship between phenological synchrony and acorn production was modulated by spring drought, and effects of environmental vetoes on seed production were dependent on last year's environmental constraint, implying passive resource storage. Both vetoes affected among-tree synchrony in seed production. Finally, precipitation preceding acorn maturation was positively related to seed production, mitigating apparent resource depletion following high crop production in the previous year. These results provide new insights into mechanisms beyond widely reported weather and seed production correlations.
Note: Número d'acord de subvenció EC/FP7/610028
Note: Número d'acord de subvenció MINECO/CGL2015-70558-P
Note: Número d'acord de subvenció MINECO/CGL2012-33398
Note: Número d'acord de subvenció AGAUR/2014/SGR-913
Rights: Tots els drets reservats
Language: Anglès
Document: article ; recerca ; acceptedVersion
Subject: Moran effect ; Environmental constraint ; Mast seeding ; Phenological synchrony hypothesis ; Seed abscission ; Seed production
Published in: Proceedings of the Royal Society B, Vol. 284, issue 1866 (Nov. 2017) , art. 1784, ISSN 0962-8452

DOI: 10.1098/rspb.2017.1784
PMID: 29093224

Available from: 2018-11-30

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles

 Record created 2018-01-25, last modified 2018-02-13

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