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Seed dispersal by neotropical waterfowl depends on bird species and seasonality

Waterbirds have an important ecological function as vectors of plant dispersal between different wetlands. In the Neotropical region, there is very limited information about this dispersal. In southern Brazil, seed dispersal by endozoochory was studied by five waterfowl, including Brazilian teal, yellow-billed teal, ringed teal, coscoroba swan, and whitefaced whistling-duck. Over 2000 diaspores were recovered from 40 different plants, including seeds of 37 angiosperms, and diaspores of mosses, ferns and charophytes. Seeds of the threatened grass Zizaniopsis bonariensis were the most abundant. The species richness and abundance of seeds dispersed varied between bird species, and between the cold and warm seasons, with a strong interaction between these two factors. 12 plant species were indicators of particular bird species or seasons. The largest bird, the coscoroba, dispersed a larger proportion of relatively large seeds. The coscoroba and the smallest bird (ringed teal) differed from each other, and from the other three ducks, in the community composition of plants dispersed. All five species make daily movements between wetlands and are widely distributed in South America, ranging from the sedentary Brazilian teal to the long-distance migratory coscoroba. informacion[at]ebd.csic.es: Silva et al. (2020) Seed dispersal by neotropical waterfowl depends on bird species and seasonality.  Freshwater Biology https://doi.org/10.1111/fwb.1361


https://onlinelibrary.wiley.com/doi/10.1111/fwb.13615
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Content with tag endozoochory .

Seed dispersal by neotropical waterfowl depends on bird species and seasonality

Waterbirds have an important ecological function as vectors of plant dispersal between different wetlands. In the Neotropical region, there is very limited information about this dispersal. In...

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...

Carp eggs survive transport through avian intestine

Fish have somehow colonized isolated water bodies all over the world without human assistance. It has long been speculated that these colonization events are assisted by waterbirds, transporting...

Angiosperm seeds lacking external flesh can be adapted for endozoochory

It is often assumed that only plants with a fleshy fruit disperse inside vertebrate guts, i.e. by “endozoochory”. However, only 8% of European angiosperms have a fleshy fruit, and endozoochory of...

Fish eggs can be dispersed by waterfowl

Researchers have found that eggs of two fish species can survive passage through the digestive tract of waterfowl after being swallowed, and this finding may help explain the long-standing mystery...
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