The relative contribution of fruits and arthropods to the diet of three trogon species (Aves, Trogonidae) in the Brazilian Atlantic Forest
TLDR
The relative contribution of fruits and arthropods did not differ between the wet and dry seasons for any species, and in the omnivorous gradient, T.viridis is close to the frugivorous extreme, whereas T.surrucura and T.rufus is next to the insectivorous end.Abstract:
Trogons are pan-tropical forest birds that eat a mix of fruits and arthropods. With direct observations of wild feeding birds, I assessed the relative contribution of fruits and arthropods to the diet of three trogon species (Trogonviridis, T.surrucura, and T.rufus) at Parque Estadual Intervales, southeast Brazil. Fruits and arthropods made the bulk of the food items recorded, with a tendency of frugivory increasing with body mass. The Trogon species differed in the proportion of fruits and arthropods taken, with T.viridis being the most frugivorous species (66% of feeding bouts, n = 47). The relative contribution of fruits and arthropods did not differ between the wet and dry seasons for any species. In the omnivorous gradient, T.viridis is close to the frugivorous extreme, whereas T.surrucura and T.rufus is next to the insectivorous end. Such a distinction may have important consequences for the territoriality and social behavior of these birds.read more
Citations
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Seasonal insectivory by Black‐headed Trogons, a tropical dry forest frugivore
Christina Riehl,Glenn Adelson +1 more
TL;DR: The results suggest that Black-headed Trogons time reproduction to coincide with arthropod rather than fruit abundance, a pattern that may be more common among omnivorous forest birds than previously recognized.
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Species limits, patterns of secondary contact and a new species in the Trogon rufus complex (Aves: Trogonidae)
TL;DR: The black-throated trogon, Trogon rufus, is a widespread, polytypic species-complex with a convoluted taxonomic history considered here as Critically Endangered, requiring urgent conservation actions.
The avifauna of the mo singto forest dynamics plot, khao yai national park, thailand
TL;DR: The Mo Singto Forest Dynamics Plot, Khao Yai National Park, Thailand, is a subset of the 329 species of birds recorded in the headquarters area of the park.
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Future climate change will impact the size and location of breeding and wintering areas of migratory thrushes in South America
Natalia Stefanini Da Silveira,Maurício Humberto Vancine,Alex E. Jahn,Marco Aurélio Pizo,Thadeu Sobral-Souza +4 more
TL;DR: In this paper, the authors used occurrence data from species distribution databases (VertNet and GBIF), published studies, and eBird for three thrush species (Turdidae; Turdus nigriceps, T. subalaris, and T. flavipes) that breed and winter in different regions of South America and built ecological niche models using ensemble forecasting approaches to infer current and future potential distributions throughout the breeding and wintering periods of each species.
References
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