Diet Composition of Adult’s Specimens of the Invasive Species Lithobates catesbeianus (Shaw, 1804) in the Protected Area Isla Santay, Ecuador
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Abstract
The American bullfrog is considered one of the 100 worst invasive alien species in the world. It has a generalist diet and the ability to nearly eat anything smaller than its mouth. Bullfrogs are implicated in population decline or local extinctions of several native amphibians by competition or depredation. There are several composition diets studies of Bullfrogs around the world, nonetheless, there are scarce diet studies in Ecuador. The aim of this study is to examined the food contents of adults Bullfrogs in two ponds of the protected area isla Santay, Ecuador. Using hand nets and trawls, we captured 14 Bullfrogs between September to December in the years 2018 and 2019. The diet composition of Bullfrogs captured was dominant by the orders Characiformes, Coleoptera, Hymenoptera, and Decapoda, Lepidoptera y Orthoptera. We suggest a diet overlapping between the invasive species American bullfrog and the native amphibian Leptodactylus labrosus.
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