30 research outputs found
Primeiro registro do catatau, Campylorhynchus turdinus (Wied, 1831) (aves: Troglodytidae), no estado de Santa Catarina, Brasil
The Thrush-like Wren is nomadic bird of forest and has an affinity for disturbed areas. Restricted to South America, it is distributed from south-central Colombia eastern Ecuador and Peru, central and western to the southern Brazil and northeastern Argentina, with a disjunct population in eastern Brazil. I report here the first record for Santa Catarina on 25 January 2023, by vocalization of an individual. Three were present 3 days later, and one was photographed. Its range expansion is most likely attributed to deforestation, and is also consistent with the prediction that organisms are extending their geographic range towards higher latitudes and elevations as a consequence of climate change.Catatau es un pájaro Silval, nómada que tiene afinidad por las áreas perturbadas. Restringido a América del Sur, se distribuye desde el centro sur de Colombia y al este de Ecuador y Perú, centro y noroeste, al sur de Brasil y al noreste de Argentina, también en una porción disyuntiva del este de Brasil. Informe aquí el primer registro de Santa Catarina, el 25 de enero de 2023, mediante la vocalización de un individuo. Tres días después hubo tres individuos y uno puede ser fotografiado. Su expansión geográfica probablemente se atribuye a la deforestación y también es consistente con la predicción de que los organismos están extendiendo su distribución geográfica hacia latitudes y elevaciones más altas como consecuencia del cambio climático.O catatau é uma ave silvícola, nômade e que tem afinidade por áreas perturbadas. Restrito a América do Sul, distribui-se desde o centro sul da Colômbia e leste do Equador e Peru, parte central e noroeste, até o sul do Brasil e nordeste da Argentina, também em uma porção disjunta do leste do Brasil. Relato aqui o primeiro registro para Santa Catarina, em 25 de janeiro de 2023, por vocalização de um indivíduo. Três dias depois havia três indivíduos e um pode ser fotografado. Sua expansão geográfica é muito provavelmente atribuída ao desmatamento, também sendo consistente com a previsão de que os organismos estão estendendo sua distribuição geográfica em direção a latitudes e elevações mais altas, como consequência das alterações climáticas
Bat Coronavirus in Brazil Related to Appalachian Ridge and Porcine Epidemic Diarrhea Viruses
Feeding behavior and crop damage caused by capybaras (Hydrochoerus hydrochaeris) in an agricultural landscape
Frugivory and seed dispersal of Solanum granuloso-leprosum Dunal (Solanaceae) by birds in deciduous seasonal forest
Diversity of functional traits of fleshy fruits in a species-rich Atlantic rain forest
Use of feces to attract insects by a Glittering-bellied Emerald, Chlorostilbon lucidus (Shaw, 1812) (Apodiformes: Trochilidae)
This study describes the occurrence of a female Glittering-bellied Emerald, Chlorostilbon lucidus, using feces to attract insects to the nesting site for predation. This is the first report of a hummingbird using feces to attract insects
Observations of a nest of the Plumbeous Kite, Ictinia plumbea (Gmelin, 1788) (Falconiformes: Accipitridae) in southern Brazil
Between August and December 2005 and September and December 2006, 80h of observations were observed on a nest of Plumbeous Kite (Ictinia plumbea), located on the edge of a fragment in the town of Frederico Westphalen, RS, Brazil. During this period data were obtained on the behavior of copulation, parental care, nest maintenance and feeding. In early August 2005 and October 2006, copulations were observed that lasted on average 9.5s. The parents took turns incubating. In early November, the presence of nestlings was confirmed (one in each breeding season), and this time the parents fed the chicks with small insects (Hymenoptera and Coleoptera) and carried out the maintenance of the nest. The nestlings that were developing into young birds were fed with larger insects (Odonata, Lepidoptera – Myelobia smerintha and Orthoptera – Tropidacris collaris). The parents inhibited the approach of potential predators. Besides the food items supplied to the pups, they consumed fruits of Batinga Eugenia rostrifolia and a Piaya cayana carcass. The incubation period observed in this study agrees with that period already described in the literature for other regions. Finally, the data obtained allow inference of the reproductive season of this species in southern Brazil and also expand the knowledge about their diet to fruits and animal carcasses
Frugivory and seed dispersal of Solanum granuloso-leprosum Dunal (Solanaceae) by birds in deciduous seasonal forest
Abstract The goal of this study was to identify which bird species consume Solanum granuloso-leprosum fruits and disperse its seeds. 60 hours of focal observations were carried out between April and May 2006 on the edge of a deciduous forest fragment in the Uruguay River region, Rio Grande do Sul state, Brazil. Ten species were observed in total removing 443 fruits. Saltator similis removed 61.8% of the fruits, followed by Tangara sayaca (17.1%), Pipraeidea bonariensis (11.7%), and T. preciosa (6.8%), while the remaining six species accounted for only 2.5% of the fruits removed. Most fruit removal occurred early in the day or mid-afternoon. The most common feeding behaviors were picking (60.7%), followed by stalling (23%) and hovering (16%). Birds flew more than 10 m from the fruit plant in 62% of the removal events. All bird species observed here may be considered potential dispersers of S. granuloso-leprosum, as they moved the seeds away from the mother plant where strong competition and predation are likely to occur. Results also suggest that S. granuloso-leprosum may be useful in ecological restoration programs