IADIZA   20886
INSTITUTO ARGENTINO DE INVESTIGACIONES DE LAS ZONAS ARIDAS
Unidad Ejecutora - UE
artículos
Título:
Species traits and network structure predict the success and impacts of pollinator invasions
Autor/es:
RAMOS-JILIBERTO, RODRIGO; VALDOVINOS, FERNANDA S.; VÁZQUEZ, DIEGO P.; BERLOW, ERIC L.; MARTINEZ, NEO D.; MOISSET DE ESPANÉS, PABLO
Revista:
NATURE COMMUNICATIONS
Editorial:
Nature Publishing Group
Referencias:
Año: 2018 vol. 9
ISSN:
2041-1723
Resumen:
Species invasions constitute a major and poorly understood threat to plant-pollinator systems. General theory predicting which factors drive species invasion success and subsequent effects on native ecosystems is particularly lacking. We address this problem using a consumer-resource model of adaptive behavior and population dynamics to evaluate the invasion success of alien pollinators into plant-pollinator networks and their impact on native species. We introduce pollinator species with different foraging traits into network models with different levels of species richness, connectance, and nestedness. Among 31 factors tested, including network and alien properties, we find that aliens with high foraging efficiency are the most successful invaders. Networks exhibiting high alien-native diet overlap, fraction of alien-visited plant species, most-generalist plant connectivity, and number of specialist pollinator species are the most impacted by invaders. Our results mimic several disparate observations conducted in the field and potentially elucidate the mechanisms responsible for their variability.