Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/18425
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorJerozolimski, Adriano-
dc.contributor.authorRibeiro, Maria Beatriz Nogueira-
dc.contributor.authorMartins, Marcio-
dc.date.accessioned2020-06-15T21:54:51Z-
dc.date.available2020-06-15T21:54:51Z-
dc.date.issued2009-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/18425-
dc.description.abstractAccording to most studies on seed dispersal in tropical forests, mammals and birds are considered the main dispersal agents and the role played by other animal groups remains poorly explored. We investigate qualitative and quantitative components of the role played by the tortoise Chelonoidis denticulata in seed dispersal in southeastern Amazon, and the influence of seasonal variation in tortoise movement patterns on resulting seed shadows. Seed shadows produced by this tortoise were estimated by combining information on seed passage times through their digestive tract, which varied from 3 to 17 days, with a robust dataset on movements obtained from 18 adult C. denticulata monitored with radio transmitters and spoon-and-line tracking devices. A total of 4,206 seeds were found in 94 collected feces, belonging to 50 seed morphotypes of, at least, 25 plant genera. Very low rates of damage to the external structure of the ingested seeds were observed. Additionally, results of germination trials suggested that passage of seeds through C. denticulata's digestive tract does not seem to negatively affect seed germination. The estimated seed shadows are likely to contribute significantly to the dispersal of seeds away from parent plants. During the dry season seeds were dispersed, on average, 174.1 m away from the location of fruit ingestion; during the rainy season, this mean dispersal distance increased to 276.7 m. Our results suggest that C. denticulata plays an important role in seed dispersal in Amazonian forests and highlight the influence of seasonal changes in movements on the resulting seed shadows. © Springer-Verlag 2009.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 161, Número 3, Pags. 517-528pt_BR
dc.rightsRestrito*
dc.subjectData Seten
dc.subjectDigestive Systemen
dc.subjectEstimation Methoden
dc.subjectForest Ecosystemen
dc.subjectFrugivoryen
dc.subjectGerminationen
dc.subjectHerbivoryen
dc.subjectMorphotypeen
dc.subjectMovementen
dc.subjectPlant Communityen
dc.subjectQualitative Analysisen
dc.subjectQuantitative Analysisen
dc.subjectRadio Waveen
dc.subjectSeasonal Variationen
dc.subjectSeed Dispersalen
dc.subjectTrackingen
dc.subjectTurtleen
dc.subjectAnimalsen
dc.subjectChemistryen
dc.subjectCytologyen
dc.subjectDieten
dc.subjectFecesen
dc.subjectFruiten
dc.subjectGerminationen
dc.subjectPhysiologyen
dc.subjectSeed Planten
dc.subjectSeasonen
dc.subjectTreeen
dc.subjectTurtleen
dc.subjectAnimalen
dc.subjectDieten
dc.subjectFecesen
dc.subjectFruiten
dc.subjectGerminationen
dc.subjectSeasonsen
dc.subjectSeedsen
dc.subjectTreesen
dc.subjectTurtlesen
dc.subjectAmazon Riveren
dc.subjectSouth Americaen
dc.subjectAnimalsiaen
dc.subjectAvesen
dc.subjectGeochelone Denticulataen
dc.subjectMammaliaen
dc.subjectTestudinidaeen
dc.titleAre tortoises important seed dispersers in Amazonian forests?en
dc.typeArtigopt_BR
dc.identifier.doi10.1007/s00442-009-1396-8-
dc.publisher.journalOecologiapt_BR
Aparece nas coleções:Artigos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.