Ant dispersal of Croton priscus (Euphorbiaceae) seeds in a tropical semideciduous forest in southeastern Brazil

dc.creatorPassos, L
dc.creatorFerreira, SO
dc.date1996
dc.dateDEC
dc.date2014-12-16T11:34:31Z
dc.date2015-11-26T17:04:21Z
dc.date2014-12-16T11:34:31Z
dc.date2015-11-26T17:04:21Z
dc.date.accessioned2018-03-28T23:52:37Z
dc.date.available2018-03-28T23:52:37Z
dc.identifierBiotropica. Assoc Tropical Biology Inc, v. 28, n. 4, n. 697, n. 700, 1996.
dc.identifier0006-3606
dc.identifierWOS:A1996WG73700009
dc.identifier10.2307/2389055
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/77622
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/77622
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/77622
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279325
dc.descriptionSeed dispersal of C. priscus was studied in a semideciduous forest in S.E. Brazil. C. priscus is a pioneer tree, with abundant capsules containing three elaiosome-bearing seeds. The seeds are explosively dispersed and the mean ballistic dispersal distance for two trees were 3.2 and 3.4 m. The explosive ejection of seeds is followed by ant exploitation. Eleven ant species were attracted to the elaiosomes of the seeds, bur only two species regularly removed seeds. On average, Atta sexdens and Pheidole sp. 1 move seeds 2.5 and 1.0 m, respectively. The ants usually deposit the seeds in the nest. The seed removal rate was 88 percent: (N = 100) over the first 24 hr of exposure. Our results indicate that elaiosome removal by ants probably does not improve germination rates in C. priscus. Seeds without elaiosomes and seedlings of C. priscus were frequent on refuse piles of ant nest in the study area, suggesting that transport of the seeds by Attini and Pheidolini may provide beneficial effects in the Croton system.
dc.description28
dc.description4
dc.descriptionB
dc.description697
dc.description700
dc.languageen
dc.publisherAssoc Tropical Biology Inc
dc.publisherLawrence
dc.relationBiotropica
dc.relationBiotropica
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectants
dc.subjectant-plant interaction
dc.subjectballistic dispersal
dc.subjectCroton
dc.subjectEuphorbiaceae
dc.subjectmyrmecochory
dc.subjectseed dispersal
dc.subjectseed rain
dc.subjectWest-virginia
dc.subjectRain-forest
dc.subjectRemoval
dc.titleAnt dispersal of Croton priscus (Euphorbiaceae) seeds in a tropical semideciduous forest in southeastern Brazil
dc.typeArtículos de revistas


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