ED011. Baseline survey of insect diversity in 40 farms in Santa Cruz, Galapagos
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Abstract
Agricultural production in Galapagos began in the early 20th century on the 4 inhabited islands. Currently, very little is known about the number, abundance and distribution of insect and plant species in the agricultural area. Information on the presence of invasive species and their impacts on agricultural production is also limited. To ensure the sustainability of human life and the conservation of Galapagos species, it is essential to know the terrestrial biodiversity and the interactions with socio-ecological systems. To fill this information gap, a baseline of insects was established on 40 farms on Santa Cruz Island. Transects were set up to carry out foliage sweeps with entomological nets and manual collections of insects in the crops of each farm. A total of 16,533 individuals were collected and identified at different taxonomic levels, 10,331 were identified at the species level. 135 species of insects were identified, of which 18.7 % corresponded to endemic, 13.3 % to native, and 46.7 % to introduced species. The species: Bromeloecia wolverinei, Ceraeochrysa everes, Coproica bisphanta, Cosmosciara hartii, Dettopsomyia formosa, Pseudolycoriella cavatica, Psychoda alternata, Pullimosina heteroneura, Zagrammosoma lineaticeps are new records for Galapagos. This information is a useful tool to incorporate into sustainable agricultural practices. For this reason, it is recommended to strengthen the entomological survey system and technical support in the agricultural area of Santa Cruz.
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