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Seed mass, seedling size and neotropical tree seedling establishment

dc.contributor.authorBaraloto, Christopheren_US
dc.contributor.authorForget, Pierre-Michelen_US
dc.contributor.authorGoldberg, Deborah E.en_US
dc.date.accessioned2010-06-01T22:12:42Z
dc.date.available2010-06-01T22:12:42Z
dc.date.issued2005-12en_US
dc.identifier.citationBARALOTO, CHRISTOPHER; FORGET, PIERRE-MICHEL; GOLDBERG, DEBORAH E. (2005). "Seed mass, seedling size and neotropical tree seedling establishment." Journal of Ecology 93(6): 1156-1166. <http://hdl.handle.net/2027.42/75229>en_US
dc.identifier.issn0022-0477en_US
dc.identifier.issn1365-2745en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/75229
dc.description.abstract1   We examined among- and within-species effects of seed mass for seedling establishment from seed to 5 years of age in a field experiment at Paracou, French Guiana. 2   Six seeds of each of eight species were weighed and planted into each of 120 plots (1 m 2 ) throughout closed-canopy forest along 12 100-m transects in 1998. 3   We described the microhabitat of each planting site using principal components derived from measurements of light availability, soil moisture, carbon and nitrogen content, and soil phosphorus availability. Although both survival and relative growth rate (RGR) increased with increasing light availability, no other microhabitat variable significantly affected seedling performance. Nor did the magnitude of microhabitat effects on survival or RGR differ among species. 4   Larger-seeded species were more likely to survive from germination to 1 year as well as from 1 to 5 years of age. RGR for seedling height during the first year post-germination was not related to seed mass, but smaller-seeded species did grow slightly faster thereafter. Path analyses revealed that correlations between seed mass and performance were explained in part because larger seeds produced larger initial seedlings, which tended to survive better but grow more slowly. 5   We also analysed within-species effects of seed mass for the larger-seeded Eperua grandiflora and Vouacapoua americana (both Caesalpiniaceae). Larger seeds produced larger seedlings in both species, but larger seeds survived better only for Eperua . Larger seedlings grew more slowly in both species, but did not offset the early ( Eperua ) and later ( Vouacapoua ) positive direct effects of seed mass on RGR that may represent contrasting strategies for reserve deployment. 6   Our results demonstrate that seed size influences performance within and among species in part because of indirect effects of initial seedling size. However, we suggest that traits tightly correlated with seed mass at the species level, such as specific leaf area, leaf longevity and photosynthetic capacity, may also contribute to interspecific performance differences. Journal of Ecology (2005) doi: 10.1111/j.1365-2745.2005.01041.xen_US
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dc.publisherBlackwell Science Ltden_US
dc.rights© 2005 British Ecological Societyen_US
dc.subject.otherFrench Guianaen_US
dc.subject.otherLife-history Trade-offsen_US
dc.subject.otherMicrohabitaten_US
dc.subject.otherPath Analysisen_US
dc.subject.otherRegeneration Strategyen_US
dc.subject.otherRelative Growth Rateen_US
dc.subject.otherSeedling Survivalen_US
dc.subject.otherShade Toleranceen_US
dc.titleSeed mass, seedling size and neotropical tree seedling establishmenten_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelEcology and Evolutionary Biologyen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, USA, anden_US
dc.contributor.affiliationother* DÉpartement Ecologie et Gestion de la BiodiversitÉ, UMR 5176 CNRS-MNHN, MusÉum National d’Histoire Naturelle, Brunoy, Franceen_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/75229/1/j.1365-2745.2005.01041.x.pdf
dc.identifier.doi10.1111/j.1365-2745.2005.01041.xen_US
dc.identifier.sourceJournal of Ecologyen_US
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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