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Entomotropica
Sociedad Venezolana de Entomologia
ISSN: 1317-5262
Vol. 20, No. 2, 2005, pp. 77-88
Bioline Code: em05014
Full paper language: English
Document type: Research Article
Document available free of charge

Entomotropica, Vol. 20, No. 2, 2005, pp. 77-88

 es Insectos asociados con plantas amenzadas en las Islas Galápagos, Ecuador
Boada, Ruth

Resumen

Pocos estudios acerca de insectos asociados a plantas se han realizado en las Islas Galápagos. Tomando en cuenta el alto grado de endemismo en Galápagos, unido al hecho que especies de plantas que están en peligro de extinción consecuentemente también tendrán entomofauna asociada igualmente en peligro, es importante conocer qué especies de insectos usan estas plantas y su grado de dependencia. Durante el periodo comprendido entre abril 2001 y agosto 2002 se observaron y colectaron manualmente insectos que interactúan con 19 especies de plantas en peligro. Ciento ocho especies de insectos fueron observados usando las plantas como refugio y/o fuente de alimento. Ochenta y dos insectos fueron identificados. La mayoría de los insectos identificados observados (76,8%) son endémicos o nativos y de estos varias especies son generalistas ya que aparentemente no tienen un rango restringido de alimentación ni ninguna preferencia por la planta hospedera.

Palabras-clave
Interacción insectos, Islas Galápagos, plantas en peligro de extinción.

 
 en Insects associated with endangered plants in the Galápagos Islands, Ecuador
Boada, Ruth

Abstract

Few studies on insects and host plant associations have been undertaken in the Galápagos Islands. Since endemism in the Galápagos is high, and those species of endemic plants that are critically endangered will consequently also have an equally endangered insect fauna associated with them, it is important to know the endemic species of insects that have an association with those plants and their degree of dependence. Insect interactions with 19 species of endangered plant were observed and collections made between April 2001 and August 2002. One hundred and eight insect species were found to have some degree of interaction, using plants for refuge and/or as a food source. Eighty two of these could be identified to species. Most of the identified insects (76,8%) are endemic or native and several generalist feeders. They do not appear to have a restricted feeding range or distinct host plant preference.

Keywords
Endangered plants, Galápagos Islands, insect interaction.

 
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Alternative site location: http://www.entomotropica.org

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