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Campo DC | Valor | Idioma |
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dc.contributor.author | Jorge, Maria Luisa S. P. | - |
dc.contributor.author | Howe, Henry Franklin | - |
dc.date.accessioned | 2020-06-15T21:54:42Z | - |
dc.date.available | 2020-06-15T21:54:42Z | - |
dc.date.issued | 2009 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/18414 | - |
dc.description.abstract | This is the first study to investigate whether scatter-hoarding behavior, a conditional mutualism, can be disrupted by forest fragmentation. We examined whether acouchies (Myoprocta acouchy, Rodentia) and agoutis (Dasyprocta leporina, Rodentia) changed scatter-hoarding behavior toward seeds of Astrocaryum aculeatum (Arecaceae) as a consequence of a decrease in forest-patch area. Our study was conducted at the 30-year-old Biological Dynamics of Forest Fragments Project, in central Amazon, Brazil. We tested whether forest size affected the number of Astrocaryum seeds removed and scatter-hoarded (and likely dispersed) by acouchies and agoutis, as well as the distance that the seeds were hoarded. The study extended over three seasons: the peak of the rainy season (March-April), the transition between the rainy and the dry season (May-June), and the peak of the dry season (August-September). Our results revealed that the number of seeds removed was larger in smaller fragments, but that the percentage of seeds hoarded was much lower, and seeds eaten much higher, in 1-ha fragments. Moreover, fewer seeds were taken longer distances in fragments than in the continuous forest. Site affected the number of seeds removed and season affected the percentage of seeds hoarded: more seeds were removed from stations in one site than in two others, and hoarding was more important in April and September than in June. Our study reveals that scatter-hoarding behavior is affected by forest fragmentation, with the most important disruption in very small fragments. Fragmentation converts a largely mutualistic relationship between the rodents and this palm in large forest patches into seed predation in small fragments. © Springer-Verlag 2009. | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 161, Número 4, Pags. 709-718 | pt_BR |
dc.rights | Restrito | * |
dc.subject | Behavioral Ecology | en |
dc.subject | Climate Effect | en |
dc.subject | Forest Ecosystem | en |
dc.subject | Fragmentation | en |
dc.subject | Mutualism | en |
dc.subject | Rodent | en |
dc.subject | Seasonal Variation | en |
dc.subject | Seed Dispersal | en |
dc.subject | Seed Predation | en |
dc.subject | Site Investigation | en |
dc.subject | Analysis Of Variance | en |
dc.subject | Animals | en |
dc.subject | Arecaceae | en |
dc.subject | Ecosystem | en |
dc.subject | Feeding Behavior | en |
dc.subject | Geography | en |
dc.subject | Physiology | en |
dc.subject | Seed Plant | en |
dc.subject | Population Dynamics | en |
dc.subject | Rodent | en |
dc.subject | Season | en |
dc.subject | Tree | en |
dc.subject | Analysis Of Variance | en |
dc.subject | Animal | en |
dc.subject | Arecaceae | en |
dc.subject | Ecosystem | en |
dc.subject | Feeding Behavior | en |
dc.subject | Geography | en |
dc.subject | Population Dynamics | en |
dc.subject | Rodentia | en |
dc.subject | Seasons | en |
dc.subject | Seeds | en |
dc.subject | Trees | en |
dc.subject | South America | en |
dc.subject | Arecaceae | en |
dc.subject | Astrocaryum | en |
dc.subject | Astrocaryum Aculeatum | en |
dc.subject | Caviomorpha | en |
dc.subject | Dasyprocta | en |
dc.subject | Dasyprocta Leporina | en |
dc.subject | Myoprocta Acouchy | en |
dc.subject | Rodentia | en |
dc.title | Can forest fragmentation disrupt a conditional mutualism? A case from central Amazon | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1007/s00442-009-1417-7 | - |
dc.publisher.journal | Oecologia | pt_BR |
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