Composición Dietética de Especímenes Adultos de la Especie Invasora Lithobates catesbeianus (Shaw, 1804) en el Área Protegida Isla Santay, Ecuador

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Carlos Alberto Cruz Cordovez
Ileana Talía Herrera-González
Brunny Alejandra Espinoza Amén
Kimberly Aryani Rizzo Ochoa
Wilver Alfredo Bravo García

Resumen

La especie rana toro está en la lista de las 100 especies invasoras más dañinas del mundo. Su dieta generalista y la capacidad de alimentarse de cualquier especie de menor tamaño permite que impacte negativamente a poblaciones nativas de anfibios. Existen numerosos estudios de composición dietética de la especie a nivel internacional, sin embargo, escasos trabajos se han realizado a nivel nacional. El presente estudio, tiene el objetivo de determinar la composición dietética de la especie L. catesbeianus en Isla Santay en Ecuador, para lo cual se capturaron 14 especímenes adultos durante los meses de septiembre a diciembre en los años 2018 y 2019. Los resultados evidencian que la dieta es predominada por los órdenes: Characiformes, Coleoptera, Hymenoptera y Decapoda. Es posible que la rana toro en la isla Santay impacte negativamente a la especie de anfibio nativa Leptodactylus labrosus, a través de la competencia (solapamiento de la dieta).

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Cruz Cordovez, C. A., Herrera-González, I. T., Espinoza Amén, B. A., Rizzo Ochoa, K. A., & Bravo García, W. A. (2021). Composición Dietética de Especímenes Adultos de la Especie Invasora Lithobates catesbeianus (Shaw, 1804) en el Área Protegida Isla Santay, Ecuador. INVESTIGATIO, (16), 42-51. https://doi.org/10.31095/investigatio.2021.16.4
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