Abstract (en):
The Tropical Dry Forest is one of the most threatened ecosystems due to the loss of vegetation cover caused by anthropogenic activities. Understanding how plant-animal interactions occur in this type of ecosystem is particularly important because these interactions promote the maintenance and functioning of the ecosystems. Therefore, the objective of this study was to identify interactions between fruit bats and plants through mutualistic interaction networks in ten tropical dry forest fragments in Valle del Cauca, Colombia. For this purpose, we characterized the bat community, as well as the seeds found in their feces; with the data obtained, the structural properties of the network (nestedness, modularity and robustness) were evaluated. Our results show 36 species and 1142 individuals of bats, where we identified 19 669 seeds grouped in 85 interactions between 18 bat species and 19 plant species. Moreover, the resulting interaction network presented a nestedness, modular structure, robust to the loss of specialist species but susceptible to the loss of generalist species. These results demonstrate the importance of bats for the analysis of plant-animal interactions and highlight them as a key group to be considered in conservation and restoration plans in highly disturbed ecosystems such as the Tropical Dry Forest of Valle del Cauca.
Abstract (es):
El Bosque seco Tropical (BsT) es uno de los ecosistemas más amenazados del planeta dada la pérdida de cobertura vegetal causada por actividades antropogénicas. Entender cómo se dan las interacciones planta-animal en este tipo de ecosistemas es particularmente importante porque promueven su mantenimiento y funcionamiento. Nuestro objetivo fue identificar las interacciones entre murciélagos frugívoros y plantas a través de redes de interacción mutualistas en diez remanentes de BsT del Valle del Cauca. Para esto se caracterizó el ensamblaje de murciélagos y las semillas encontradas en sus heces y se evaluaron las propiedades estructurales de redes (anidamiento, modularidad y robustez). Se encontraron 36 especies de murciélagos y 1142 individuos; adicionalmente, se identificaron 19 669 semillas y 85 interacciones entre 18 especies de murciélagos y 19 especies de plantas. La red de interacción resultante presentó una estructura anidada, modular y robusta a la pérdida de especies especialistas pero susceptible a la pérdida de especies generalistas. Estos resultados dejan en evidencia la importancia de los murciélagos para el análisis de las interacciones planta-animal y a su vez los propone como un grupo clave para ser incluidos en planes de conservación y restauración de ecosistemas altamente perturbados como el BsT del Valle del Cauca.
Keywords:
Dispersión de semillas, Ecología, Mutualismo, Redes de interacción (es)
Ecology, Interaction network, Mutualism, Seed dispersal (en)
Ecology, Interaction network, Mutualism, Seed dispersal (en)
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How to Cite
Velásquez Roa, T., Calvache-Sánchez, C. C., Bernal Rivera, A. ., Medina Benavides, S. S., & Carvajal, P. (2023). Interactions between frugivorous bats and plants in the tropical dry forest of Valle del Cauca, Colombia. Biota Colombiana, 24(1), e1078. https://doi.org/10.21068/2539200X.1078
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