Solapamiento de nicho ecológico temporal entre perros ferales y mamíferos nativos en el suroccidente de Ecuador
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2021-03
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Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
Los perros (Canis lupus familiaris) son los carnívoros introducidos más abundantes en el mundo, aquellos que, debido al abandono se convierten en ferales; estos viven parcial o totalmente independientes del humano y adoptan un comportamiento salvaje afectando a mamíferos nativos. El objetivo de este estudio es estimar la abundancia relativa, describir patrones de actividad y estimar el grado de solapamiento temporal entre la especie invasora y las especies nativas mediante fototrampeo. Se obtuvo que C. lupus familiaris fue más abundante en Bosque Protector Cerro Blanco. Los perros tuvieron un patrón de actividad diurno, teniendo un solapamiento temporal moderado con especies diurnas y bajo con especies nocturnas. El mayor coeficiente de solapamiento fue con Dasyprocta punctata y el menor coeficiente fue con Didelphis marsupialis. Este trabajo permite comprender los posibles efectos que tienen los perros ferales sobre los mamíferos nativos y recomendar acciones de mitigación.
Dogs (Canis lupus familiaris) are the most abundant introduced carnivores in the world, those that, due to abandonment, become feral; they live partially or totally independent of humans and adopt a wild behavior affecting native mammals. The objective of this study is to estimate the relative abundance, describe activity patterns and estimate the degree of temporal overlap between the invasive species and the native species by using photo-trapping. It was found that C. lupus familiaris was more abundant in Cerro Blanco
The dogs had a diurnal activity pattern, having moderate temporal overlap with diurnal species and low with nocturnal species. The highest overlap coefficient was with Dasyprocta punctata and the lowest coefficient was with Didelphis marsupialis. This work allows us to understand the possible effects that feral dogs have on native mammals and to recommend mitigation actions.
Dogs (Canis lupus familiaris) are the most abundant introduced carnivores in the world, those that, due to abandonment, become feral; they live partially or totally independent of humans and adopt a wild behavior affecting native mammals. The objective of this study is to estimate the relative abundance, describe activity patterns and estimate the degree of temporal overlap between the invasive species and the native species by using photo-trapping. It was found that C. lupus familiaris was more abundant in Cerro Blanco
The dogs had a diurnal activity pattern, having moderate temporal overlap with diurnal species and low with nocturnal species. The highest overlap coefficient was with Dasyprocta punctata and the lowest coefficient was with Didelphis marsupialis. This work allows us to understand the possible effects that feral dogs have on native mammals and to recommend mitigation actions.
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CÁMARAS TRAMPA, COEFICIENTE DE SUPERPOSICIÓN, MAMÍFEROS NATIVOS, CANIS LUPUS FAMILIARIS, SOLAPAMIENTO TEMPORAL