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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Fadini, Rodrigo F. | - |
dc.contributor.author | Go?alves, Danielly Caroline Miléo | - |
dc.contributor.author | Reis, Rúbia Patrcia Fernandes | - |
dc.date.accessioned | 2020-06-15T21:54:21Z | - |
dc.date.available | 2020-06-15T21:54:21Z | - |
dc.date.issued | 2009 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/18381 | - |
dc.description.abstract | The present paper describes the spatial distribution of the mistletoe Psittacanthus plagiophyllus Eichl. (Loranthaceae) on its host, the cashew tree Anacardium occidentale L., in a Brazilian Amazonian savanna. Our aim was to understand the roles of bird-seed dispersers and host quality in determining the mistletoe distribution among its host trees. In 2006, we marked 118 cashews in a 4.5-ha plot and counted the number of mistletoes and the presence of seeds attached to host branches in 2006, 2007 and 2008. On average, 36% of the hosts were infected each year. The infection load and the probability of being infected increased significantly with host crown diameter. On average, 25% of the hosts received at least one mistletoe seed in each year, being taller and previously infected hosts more prone to receive seeds in all 3 years. Elaenia cristata was the main seed disperser, visiting P. plagiophyllus 48 times in 35h of focal records. Additionally, in a field experiment, we used the presence of an infection and the host size as surrogates for host quality and tested their effect on mistletoe survivorship. After 9 months, 16.5% of seeds survived and 14% had established, but neither host conditions nor host size influenced seed survivorship. Therefore, we suggest that mistletoe distribution is a consequence of a consistent dispersal of seeds onto larger and previously parasitised hosts across years. © 2009 CSIRO. | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 57, Número 8, Pags. 640-646 | pt_BR |
dc.rights | Restrito | * |
dc.subject | Dicotyledon | en |
dc.subject | Host Plant | en |
dc.subject | Host Quality | en |
dc.subject | Savanna | en |
dc.subject | Seed Dispersal | en |
dc.subject | Shrub | en |
dc.subject | Spatial Distribution | en |
dc.subject | Survivorship | en |
dc.subject | Temporal Analysis | en |
dc.subject | Amazonas | en |
dc.subject | Anacardium Occidentale | en |
dc.subject | Aves | en |
dc.subject | Elaenia Cristata | en |
dc.subject | Loranthaceae | en |
dc.subject | Psittacanthus | en |
dc.subject | Viscum Album | en |
dc.title | Consistency in seed-deposition patterns and the distribution of mistletoes among its host trees in an Amazonian savanna | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1071/BT09013 | - |
dc.publisher.journal | Australian Journal of Botany | pt_BR |
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