Noticias Noticias

The structure of waterbird seed dispersal networks is not mediated by functional traits

Plants and their dispersers form interaction networks whose structure has important implications for the persistence and stability of the community. Frugivory is vital for the dispersal of many plants, but the dispersal interactions between plants and non-frugivorous animals, such as waterfowl, are poorly studied. In this study, the authors characterized the structure of networks for seed dispersal by waterfowl, considered whether their structure is similar to that of the networks formed between frugivorous birds and plants with fleshy fruits, and searched for functional traits of birds or plants that are important for maintenance of network structure. Data from four European community-level studies on the content of the digestive tracts of ducks and rallids, including 12 species of birds and 88 of plants, were used. Waterbird seed dispersal networks shared some organizational patterns with those of frugivores, but unlike frugivores, their underlying structure was not related to functional traits. This is likely related to fundamental differences between waterfowl and frugivores in the way they ingest seeds. Differences in the functional role of particular waterbird species for seed dispersal are likely due to other processes, such as differences in population size, movement patterns, microhabitat selection, or gut processing of seeds. informacion[at]ebd.csic.es: Sebastián-González et al (2020) Waterbird seed-dispersal networks are similarly nested but less modular than those of frugivorous species, and not driven by species ecological traits. Funct Ecol https://doi.org/10.1111/1365-2435.13657


https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2435.13657
Promedio (0 Votos)

Últimas noticias Últimas noticias

Impacto de la pesca sobre las tortugas marinas

La captura accidental de tortugas marinas por parte de la pesca industrial está recibiendo una atención creciente en los últimos años debido al gran impacto sobre estas especies amenazadas. Esta...

La estructura de las redes de dispersión de semillas por aves acuáticas no está mediada por rasgos funcionales

La frugivoría es un proceso de vital importancia para la dispersión de muchas plantas, pero las interacciones de dispersión entre plantas y animales no frugívoros, como las aves acuáticas, están...

Aves infectadas por malaria atraen más a los mosquitos

En este estudio se ha comprobado que a los mosquitos les atrae más el olor de aquellas aves que ya están infectadas por protozoos del género Plasmodium, causante de la enfermedad de la malaria en...