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dc.contributor.authorPaine, C E Timothyen_UK
dc.contributor.authorHarms, Kyle Een_UK
dc.contributor.authorSchnitzer, Stefan Aen_UK
dc.contributor.authorCarson, Walter Pen_UK
dc.description.abstractThe intensity of competition among forest tree seedlings is poorly understood, but has important ramifications for their recruitment and for the maintenance of species diversity. Intense competition among seedlings could allow competitively dominant species to exclude subordinate species. Alternatively, the low density and small stature of forest tree seedlings could preclude intense interseedling competition. In this case, other processes, such as size-asymmetric competition with adults, interactions with consumers, or neutral dynamics would prevail as those structuring the forest understory. We tested the intensity of, and potential for, intraspecific competition among tree seedlings of three species (Brosimum alicastrum, Matisia cordata, and Pouteria reticulata) in two Neotropical rain forests. We reduced stem densities by up to 90 percent and monitored individual growth and survival rates for up to 24 mo. Individual growth and survival rates were generally unrelated to stem density. Contrary to the predicted behavior of intensely competing plant populations, the distribution of individual heights did not become more left-skewed with time for any species, regardless of plot density; i.e., excesses of short, suppressed individuals did not accumulate in high-density plots. We further measured the overlap of zones of influence (ZOIs) to assess the potential for resource competition. Seedling ZOIs overlapped only slightly in extremely dense monodominant plots, and even less in ambient-density plots of mixed composition. Our results thus suggest that interseedling competition was weak. Given the low density of tree seedlings in Neotropical forests, we infer that resource competition among seedlings may be irrelevant to their recruitment.en_UK
dc.relationPaine CET, Harms KE, Schnitzer SA & Carson WP (2008) Weak competition among tropical tree seedlings: Implications for species coexistence. Biotropica, 40 (4), pp. 432-440.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjectBrosimum alicastrumen_UK
dc.subjectcompetitive irrelevanceen_UK
dc.subjectmaintenance of biodiversityen_UK
dc.subjectMatisia cordataen_UK
dc.subjectresource competitionen_UK
dc.subjectPouteria reticulataen_UK
dc.subjectzone of influenceen_UK
dc.titleWeak competition among tropical tree seedlings: Implications for species coexistenceen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Paine et al._2008_Weak competition among tropical tree seedlings implications for species coexistence.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationLouisiana State Universityen_UK
dc.contributor.affiliationSmithsonian Tropical Research Instituteen_UK
dc.contributor.affiliationUniversity of Pittsburghen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorPaine, C E Timothy|0000-0001-8705-3719en_UK
local.rioxx.authorHarms, Kyle E|en_UK
local.rioxx.authorSchnitzer, Stefan A|en_UK
local.rioxx.authorCarson, Walter P|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenamePaine et al._2008_Weak competition among tropical tree seedlings implications for species coexistence.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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