Photo: Andrew Russell.
Environmental changes contribute to the arrival of non-native species and their pathogens in sensitive ecosystems such as the Galápagos Islands. This poses a significant risk to the archipelago’s unique species, including the Galápagos sea lion (Zalophus wollebaeki), an endemic and endangered animal that faces the threat of contracting diseases from introduced domestic animals.
In this recent study, researchers used molecular techniques to detect DNA from two parasitic worms (Dirofilaria immitis and Dirofilaria repens) in juvenile sea lions. This method allowed for the precise identification of these filarial nematodes, which cause canine dirofilariasis and could negatively impact sea lion health.
This advancement is crucial for diagnosing infections at early stages. However, ongoing research is needed to better understand the impact of these parasites on the species’ health. Ultimately, these findings highlight the urgent need to implement measures to prevent the transmission of diseases from introduced species to the native and endemic wildlife of the Galápagos
To learn more about this research go to: https://doi.org/10.1002/ece3.70596
