Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production

Autores
Morán López, Teresa; Forner, Alicia; Flores Rentería, Dulce; Díaz, Mario; Valladares, Fernando
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effects of fragmentation on acorn production should be mediated by their impacts on the physiological status of oaks during seed development particularly in water-limited systems, such as Mediterranean forests. The creation of forests edges reduces tree-to-tree competition, which may in turn temper water shortage during summer and, as a result, enhance acorn production. To test these two hypotheses we monitored acorn production and predawn water potential during the 2012-2014 period in two holm oak (Quercus ilex) forest archipelagos of the Iberian Peninsula.Acorn production and fragmentation effects did not differ between localities despite of their contrasting climatic conditions (accumulated water deficit from April to August was a 60% higher in the South). In general, forest interiors showed a high proportion of non-producing trees (~50%) while trees at small forest fragments showed high acorn crops (acorn score ≥3, ~40% of studied trees). Our results confirmed the expectation that intraspecific competition in small forest fragments was reduced, which alleviated summer water shortage of the trees studied. This reduced water stress entailed an increased acorn production. Overall, our results show that local processes such as fragmentation may counteract climatic differences among localities and could even override the impacts of increased aridity on acorn crops.
Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; España
Fil: Forner, Alicia. Consejo Superior de Investigaciones Científicas; España
Fil: Flores Rentería, Dulce. Consejo Superior de Investigaciones Científicas; España
Fil: Díaz, Mario. Consejo Superior de Investigaciones Científicas; España
Fil: Valladares, Fernando. Consejo Superior de Investigaciones Científicas; España
Materia
Acorn Production
Competition
Forest Fragmentation
Holm Oak
Quercus Ilex
Water Stress
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/70746
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn productionMorán López, TeresaForner, AliciaFlores Rentería, DulceDíaz, MarioValladares, FernandoAcorn ProductionCompetitionForest FragmentationHolm OakQuercus IlexWater Stresshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The effects of fragmentation on acorn production should be mediated by their impacts on the physiological status of oaks during seed development particularly in water-limited systems, such as Mediterranean forests. The creation of forests edges reduces tree-to-tree competition, which may in turn temper water shortage during summer and, as a result, enhance acorn production. To test these two hypotheses we monitored acorn production and predawn water potential during the 2012-2014 period in two holm oak (Quercus ilex) forest archipelagos of the Iberian Peninsula.Acorn production and fragmentation effects did not differ between localities despite of their contrasting climatic conditions (accumulated water deficit from April to August was a 60% higher in the South). In general, forest interiors showed a high proportion of non-producing trees (~50%) while trees at small forest fragments showed high acorn crops (acorn score ≥3, ~40% of studied trees). Our results confirmed the expectation that intraspecific competition in small forest fragments was reduced, which alleviated summer water shortage of the trees studied. This reduced water stress entailed an increased acorn production. Overall, our results show that local processes such as fragmentation may counteract climatic differences among localities and could even override the impacts of increased aridity on acorn crops.Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; EspañaFil: Forner, Alicia. Consejo Superior de Investigaciones Científicas; EspañaFil: Flores Rentería, Dulce. Consejo Superior de Investigaciones Científicas; EspañaFil: Díaz, Mario. Consejo Superior de Investigaciones Científicas; EspañaFil: Valladares, Fernando. Consejo Superior de Investigaciones Científicas; EspañaElsevier Science2016-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70746Morán López, Teresa; Forner, Alicia; Flores Rentería, Dulce; Díaz, Mario; Valladares, Fernando; Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production; Elsevier Science; Forest Ecology and Management; 370; 6-2016; 22-300378-1127CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2016.03.042info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112716301189info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:43:34Zoai:ri.conicet.gov.ar:11336/70746instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:43:34.494CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
title Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
spellingShingle Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
Morán López, Teresa
Acorn Production
Competition
Forest Fragmentation
Holm Oak
Quercus Ilex
Water Stress
title_short Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
title_full Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
title_fullStr Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
title_full_unstemmed Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
title_sort Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production
dc.creator.none.fl_str_mv Morán López, Teresa
Forner, Alicia
Flores Rentería, Dulce
Díaz, Mario
Valladares, Fernando
author Morán López, Teresa
author_facet Morán López, Teresa
Forner, Alicia
Flores Rentería, Dulce
Díaz, Mario
Valladares, Fernando
author_role author
author2 Forner, Alicia
Flores Rentería, Dulce
Díaz, Mario
Valladares, Fernando
author2_role author
author
author
author
dc.subject.none.fl_str_mv Acorn Production
Competition
Forest Fragmentation
Holm Oak
Quercus Ilex
Water Stress
topic Acorn Production
Competition
Forest Fragmentation
Holm Oak
Quercus Ilex
Water Stress
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effects of fragmentation on acorn production should be mediated by their impacts on the physiological status of oaks during seed development particularly in water-limited systems, such as Mediterranean forests. The creation of forests edges reduces tree-to-tree competition, which may in turn temper water shortage during summer and, as a result, enhance acorn production. To test these two hypotheses we monitored acorn production and predawn water potential during the 2012-2014 period in two holm oak (Quercus ilex) forest archipelagos of the Iberian Peninsula.Acorn production and fragmentation effects did not differ between localities despite of their contrasting climatic conditions (accumulated water deficit from April to August was a 60% higher in the South). In general, forest interiors showed a high proportion of non-producing trees (~50%) while trees at small forest fragments showed high acorn crops (acorn score ≥3, ~40% of studied trees). Our results confirmed the expectation that intraspecific competition in small forest fragments was reduced, which alleviated summer water shortage of the trees studied. This reduced water stress entailed an increased acorn production. Overall, our results show that local processes such as fragmentation may counteract climatic differences among localities and could even override the impacts of increased aridity on acorn crops.
Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Superior de Investigaciones Científicas; España
Fil: Forner, Alicia. Consejo Superior de Investigaciones Científicas; España
Fil: Flores Rentería, Dulce. Consejo Superior de Investigaciones Científicas; España
Fil: Díaz, Mario. Consejo Superior de Investigaciones Científicas; España
Fil: Valladares, Fernando. Consejo Superior de Investigaciones Científicas; España
description The effects of fragmentation on acorn production should be mediated by their impacts on the physiological status of oaks during seed development particularly in water-limited systems, such as Mediterranean forests. The creation of forests edges reduces tree-to-tree competition, which may in turn temper water shortage during summer and, as a result, enhance acorn production. To test these two hypotheses we monitored acorn production and predawn water potential during the 2012-2014 period in two holm oak (Quercus ilex) forest archipelagos of the Iberian Peninsula.Acorn production and fragmentation effects did not differ between localities despite of their contrasting climatic conditions (accumulated water deficit from April to August was a 60% higher in the South). In general, forest interiors showed a high proportion of non-producing trees (~50%) while trees at small forest fragments showed high acorn crops (acorn score ≥3, ~40% of studied trees). Our results confirmed the expectation that intraspecific competition in small forest fragments was reduced, which alleviated summer water shortage of the trees studied. This reduced water stress entailed an increased acorn production. Overall, our results show that local processes such as fragmentation may counteract climatic differences among localities and could even override the impacts of increased aridity on acorn crops.
publishDate 2016
dc.date.none.fl_str_mv 2016-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/70746
Morán López, Teresa; Forner, Alicia; Flores Rentería, Dulce; Díaz, Mario; Valladares, Fernando; Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production; Elsevier Science; Forest Ecology and Management; 370; 6-2016; 22-30
0378-1127
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70746
identifier_str_mv Morán López, Teresa; Forner, Alicia; Flores Rentería, Dulce; Díaz, Mario; Valladares, Fernando; Some positive effects of the fragmentation of holm oak forests: Attenuation of water stress and enhancement of acorn production; Elsevier Science; Forest Ecology and Management; 370; 6-2016; 22-30
0378-1127
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2016.03.042
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112716301189
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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