气候变化领域集成服务门户(CCPortal): Seed size underlies the uncoupling in species composition between canopy and recruitment layers in European forests

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DOI	10.1016/j.foreco.2019.117471
	Seed size underlies the uncoupling in species composition between canopy and recruitment layers in European forests
	Bastias C.C.; Morán-López T.; Valladares F.; Benavides R.
发表日期	2019
ISSN	0378-1127
卷号	449
英文摘要	Increasing evidence supports that canopy richness favors multifunctionality in European forests. Given that recruitment represents one of the main demographic bottlenecks in plant communities, the provision of similar levels of forest functioning in the future will depend on successful natural regeneration in the present. Here, we evaluated whether canopy diversity enhances recruitment (abundance and richness) by providing a more diverse seed supply and a more heterogeneous environmental context; or, alternatively, if post-dispersal environmental filters outweigh these expected positive effects. For this purpose, we used a large-scale European platform comprising 173 forest plots that follow a canopy species richness gradient (from monoculture to mixed plots up to 5 tree species) in five forest types from Mediterranean to boreal forests. Despite that canopy diversity promoted a more diverse seed supply and a more heterogeneous light environment, this did not translate into a richer or more abundant community of recruits. In fact, we found an important uncoupling in species composition between recruitment and canopy layers. Our results suggest that strong post-dispersal filters, mediated by an interaction between seed size and latitude, drive this mismatch. Large-seeded species were over-represented in the recruitment at both extremes of the European gradient (Mediterranean and boreal forests), while the opposite trend occurred at intermediate latitudes. Altogether, our work shows that preserving a more diverse canopy may not ensure successful recruitment, and advocates future studies analyzing the role of post-dispersal filters on the assembly of European forests. © 2019 Elsevier B.V.
英文关键词	Canopy richness; Environmental heterogeneity; FUNDIV; Local seed supply; Regeneration abundance; Regeneration richness
语种	英语
scopus关键词	Ecology; Forestry; Canopy richness; Environmental heterogeneity; FUNDIV; Local seed supply; Regeneration abundance; Regeneration richness; Reforestation; boreal forest; forest canopy; forest ecosystem; heterogeneity; plant community; relative abundance; seed size; species richness; Ecology; Filters; Forestry; Forests; Recruitment; Reforestation; Seeds; Supply; Europe; Mediterranean Region
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155841
作者单位	Museo Nacional de Ciencias Naturales-CSIC, C/ Serrano 115 bis, Madrid, 28006, Spain; Laboratorio Ecotono, INIBIOMA-CONICET, Universidad Nacional del Comahue, Quintral 1250, Bariloche, 8400, Argentina; Universidad Rey Juan Carlos, C/ Tulipán s/n, Móstoles, 28933, Spain
推荐引用方式 GB/T 7714	Bastias C.C.,Morán-López T.,Valladares F.,et al. Seed size underlies the uncoupling in species composition between canopy and recruitment layers in European forests[J],2019,449.
APA	Bastias C.C.,Morán-López T.,Valladares F.,&Benavides R..(2019).Seed size underlies the uncoupling in species composition between canopy and recruitment layers in European forests.Forest Ecology and Management,449.
MLA	Bastias C.C.,et al."Seed size underlies the uncoupling in species composition between canopy and recruitment layers in European forests".Forest Ecology and Management 449(2019).