auropunctata) las cuales fueron tratados con Amdro®. En abril y octubre 2002 se detectaron dos poblaciones pequeñas (0.1% del área ocupada originalmente por W. Hasta la fecha, se ha realizado cinco monitoreos para evaluar la eficacia del programa de erradicación colocando palitos pintados con mantequilla de maní en cuadriculas de 3-4 m. Amdro® (Hydramethylnon) fue aplicado manualmente hasta tres veces en el área de tratamiento a intervalos de tres meses entre marzo y octubre 2001. Transectos lineales de aproximadamente 10 m entre cada uno, fueron hechos dentro de la vegetación del área infestada y en una zona de amortaguimiento de 6 ha. Un programa intensivo fue iniciado en 2001 para erradicar la hormiga colorada invasora Wasmannia auropunctata (Roger), de un área de ∼21 ha en la Isla Marchena, Galápagos. / El desarrollo de técnicas efectivas para erradicar poblaciones de hormigas invasoras es esencial para la conservación de la biodiversidad nativa. auropunctata and monitor the efficacy of the eradication methods, the program's costs, and its applicability to other island ecosystems. This paper discusses the procedures used to kill W. Monitoring surveys will continue for an additional two years to ensure eradication of any remaining populations and verify the success of this program. auropunctata did not detect any individuals. Five nocturnal surveys carried out in the immediate area of introduction of W. auropunctata ants were found in May 2003 and April 2004. auropunctata) were detected in April and October 2002 and were subsequently treated with Amdro®. Two small populations (0.1% of the area originally occupied by W. To date, five follow-up monitoring surveys have placed sticks painted with peanut butter in a grid 3-4 m apart. Amdro® (Hydramethylnon) was applied manually up to three times in the treatment area at three-month intervals between March and October 2001. Linear transects, approximately 10 m apart, were cut through the vegetation of the infested area and a buffer zone of 6 ha. An intensive program was initiated in 2001 to eradicate the invasive little fire ant, Wasmannia auropunctata (Roger) from ∼21 ha on Marchena Island in the Galápagos Archipelago. The development of effective techniques to eradicate populations of invasive ant species is crucial to the conservation of native biodiversity.
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