Securing the survival and long-term protection of small land birds on the Galápagos Islands
In the Galápagos Islands, small land birds are severely threatened by invasive species. These include the iconic Darwin's finches and the little Vermilion Flycatcher (Pyrocephalus nanus), whose populations on Santa Cruz Island have declined dramatically. The main culprits for this decline, besides introduced rats and cats, are the invasive bird vampire fly (Avian Vampiere Fly-AVF), whose larvae feed on the nests of birds and cause high mortality rates among young birds. But invasive plants such as the blackberry also threaten the birds' habitats.
To ensure the survival of these unique bird species, the Charles Darwin Foundation (CDF), together with the Galapagos National Park Directorate and partners, has developed innovative conservation measures. Particularly noteworthy are biological control methods, such as the use of a parasitic wasp that attacks the AVF larvae. The first release attempts are planned for 2025.
In addition to biological methods, the CDF is also testing “self-treatment” techniques in which birds build their nests with insecticide-treated material. This method has the potential to significantly increase the reproductive success of endangered species.
The aim of the project is to save the threatened bird populations, including the little Vermilion Flycatcher, on various islands in the Galapagos and to create the conditions for the reintroduction of extinct species on Floreana.
The protection of these bird species is crucial for the balance of the Galapagos Islands' ecosystem. Therefore, extensive short- and long-term measures are being implemented to combat the above-mentioned invasive species.
This dedicated project not only serves to protect nature, but also to educate the local population and train young biologists to preserve the Galapagos land birds for future generations.