El papel de las redes de interacciones plantadispersante en la dinámica de reclutamiento de plantas en el sur de España
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2021-07-07
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Jaén: Universidad de Jaén
Resumen
[ES] En este trabajo se ha recopilado información bibliográfica sobre las interacciones planta‐ave dispersante y redes de reclutamiento planta‐planta en el sur de España, incorporando además datos sobre fenología de fructificación y migración. La hipótesis a comprobar es que las especies de plantas que son dispersadas por conjuntos más similares de aves deben tender a reclutarse con más frecuencia unas bajo las otras. A partir de la información recopilada se ha elaborado la red de interacciones planta‐aves dispersantes. Se han empleado modelos mixtos lineares generalizados para ajustar el éxito de una planta para “reclutarse” bajo otra en función de la abundancia de cada especie de planta, del número de especies de aves dispersantes que comparten y de la época de fructificación. Los resultados permiten concluir que la eficiencia del reclutamiento aumenta debido a un mayor solapamiento de aves dispersantes, especialmente en las especies que fructifican en verano.
[EN] This study is based on published information on plant‐avian seed disperser interactions, their phenological overlap, and plant‐plant recruitment networks from southern Spain. The objective was determining whether plant species that are dispersed by more similar sets of frugivores tend to recruit more often under each other. The compiled data was used to assemble the plant‐avian seed disperser network for the region. Generalised linear mixed models were used to fit the efficiency of recruitment of one plant under another as a function of their abundance, fruiting phenology and the number of shared seed dispersers. The results show that recruitment efficiency increases with the number of shared seed dispersers, especially in the case of plants that ripe their fruits in summer.
[EN] This study is based on published information on plant‐avian seed disperser interactions, their phenological overlap, and plant‐plant recruitment networks from southern Spain. The objective was determining whether plant species that are dispersed by more similar sets of frugivores tend to recruit more often under each other. The compiled data was used to assemble the plant‐avian seed disperser network for the region. Generalised linear mixed models were used to fit the efficiency of recruitment of one plant under another as a function of their abundance, fruiting phenology and the number of shared seed dispersers. The results show that recruitment efficiency increases with the number of shared seed dispersers, especially in the case of plants that ripe their fruits in summer.