Vista normal Vista MARC

Pollination of euglossinophylic epiphytic orchids in agroecosystems and forest fragments in southeast Mexico

Tipo de material: ArtículoArtículoIdioma: Inglés Tipo de contenido:
  • Texto
Tipo de medio:
  • Computadora
Tipo de soporte:
  • Recurso en línea
Tema(s) en español: Recurso en línea: En: European Journal of Environmental Sciences Volumen 2, número 1 (2012), páginas 5-14Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Resumen:
Inglés

to determine the reproductive status of the native orchids of the biodiversity “hotspot”, Biological corridor tacaná-Boquerón, in the region of soconusco, southeast Mexico, which are suffering the effects of habitat degradation, unsustainable exploitation and potentially, climate change, we analysed the species richness, abundance, habitat and abiotic preferences, pollinaria transport and relation to orchid populations, of male euglossine bees (Hymenoptera: apidea: euglossini) in agroecosystems and forest fragments within the region. using volatile baits we trapped 2,480 bees, consisting of 14 species, during a total of 256 hours, of which 284 individuals (11.5%) had pollinaria of 18 orchid species adhered to their bodies. three species of Eufriesia (E. caerulescens, E. mexicana, E. rugosa) and one species of euglossa (E. villosa) were recorded for the first time. We report Eulaema meriana as the pollinator of the recently rediscovered Plectrophora alata. We did not detect habitat preferences for the species of euglossini captured, and they were frequent, or even more frequent, in intensive coffee plantations, as are many of the orchid species, which can be classified as a disturbed habitat. Bees tended to be more abundant with increasing light intensity and decreasing humidity at each site. there was little indication of pollinator specificity and the position of the pollinaria of each orchid species on the bodies of the bees was also variable. We did not recover any pollinaria from various euglossi-nophylic, epiphytic orchid species present in the region and three bee species showed signs of population decline. However, our results indicate that many species of orchids with this pollination syndrome are receiving pollination service within an increasingly fragmented and disturbed environment, suggesting that both the orchids and the bees are adapting to the changes.

Número de sistema: 29703
Lista(s) en las que aparece este ítem: Anne Damon
Etiquetas de esta biblioteca: No hay etiquetas de esta biblioteca para este título. Ingresar para agregar etiquetas.
Valoración
    Valoración media: 0.0 (0 votos)
Existencias
Tipo de ítem Biblioteca actual Colección Estado Código de barras
Artículos Biblioteca Electrónica Recursos en línea (RE) ECOSUR Recurso digital ECO400297037323

Disponible para usuarios de ECOSUR con su clave de acceso

to determine the reproductive status of the native orchids of the biodiversity “hotspot”, Biological corridor tacaná-Boquerón, in the region of soconusco, southeast Mexico, which are suffering the effects of habitat degradation, unsustainable exploitation and potentially, climate change, we analysed the species richness, abundance, habitat and abiotic preferences, pollinaria transport and relation to orchid populations, of male euglossine bees (Hymenoptera: apidea: euglossini) in agroecosystems and forest fragments within the region. using volatile baits we trapped 2,480 bees, consisting of 14 species, during a total of 256 hours, of which 284 individuals (11.5%) had pollinaria of 18 orchid species adhered to their bodies. three species of Eufriesia (E. caerulescens, E. mexicana, E. rugosa) and one species of euglossa (E. villosa) were recorded for the first time. We report Eulaema meriana as the pollinator of the recently rediscovered Plectrophora alata. We did not detect habitat preferences for the species of euglossini captured, and they were frequent, or even more frequent, in intensive coffee plantations, as are many of the orchid species, which can be classified as a disturbed habitat. Bees tended to be more abundant with increasing light intensity and decreasing humidity at each site. there was little indication of pollinator specificity and the position of the pollinaria of each orchid species on the bodies of the bees was also variable. We did not recover any pollinaria from various euglossi-nophylic, epiphytic orchid species present in the region and three bee species showed signs of population decline. However, our results indicate that many species of orchids with this pollination syndrome are receiving pollination service within an increasingly fragmented and disturbed environment, suggesting that both the orchids and the bees are adapting to the changes. Inglés