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| Amico,Guillermo C; Aizen,Marcelo A. |
| Un gran número de plantas depende de animales mutualistas para la dispersión de sus semillas, tarea principalmente realizada por aves que ingieren los frutos y defecan o regurgitan las semillas en forma intacta. El Bosque Templado de Sudamérica Austral (BTSA) se diferencia de otros biomas boscosos templados por poseer una gran proporción de plantas leñosas (~60% de los géneros) que producen frutos carnosos. Estudiamos las interacciones entre plantas y aves dispersoras en un bosque mésico dominado por Nothofagus dombeyi en la Reserva Municipal de Llao-Llao, Argentina (41° 00´S; 71°30´O), cerca del extremo oriental del BTSA. Las aves fueron capturadas utilizando ocho redes de niebla, y muestreadas por avistaje y sonido en cinco estaciones de conteo durante... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Elaenia; Frutos carnosos; Mutualismo planta-animal; Turdus. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2005000100009 |
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| Vogel,Huilquer Francisco; Zawadzki,Cláudio Henrique; Metri,Rafael. |
| Seasonal segregation among syntopic species can be viewed as one of the available strategies for coexistence, reducing competitive process. The present work therefore aimed to interpret the assemblage structures comprising birds of the genus Turdus (Turdidae), through the analysis of seasonal variation in the species occurrence in a forest remnant located in the southcenter State of Paraná. Mist-netting was employed twice a month for capturing birds, totalling an annual effort of 7488 h.m². The frequency of occurrence, constancy and class of species dominance was determined, together with the parameters generally used in studies of ecological communities (richness, abundance, diversity and evenness). A total of 162 individuals were captured, representing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passeriformes; Seasonal segregation; Turdidae; Turdus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400024 |
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| Antonini,Yasmine; Lobato,Debora Nogueira Campos; Norte,Ana Cláudia; Ramos,Jaime A.; Moreira,Patrícia de Abreu; Braga,Erika Martins. |
| Abstract: According to the enemy release hypothesis (ERH) the spread of invasive species will be facilitated by release from their enemies as they occupy new areas. However, the ERH has rarely been tested by comparing populations of native (non-invasive, long established) species with expanding or shifting ranges, to the same species as invasive in another area. We tested the ERH with respect to blood parasite levels (prevalence and intensity of Plasmodium spp. and Haemoproteus spp.) of (a) two closely related, widely distributed species of thrush (Turdus leucomelas and T. merula), and (b) an invasive sparrow (Passer domesticus) whose range has expanded from the Old World to the New World since the 18th century. A total of 158 birds were sampled in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Portugal; Brazil; Turdus; House sparrow; Invasive bird; Range expansion. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400204 |
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| Orellana,José I; Smith-Ramírez,Cecilia; Rau,Jaime R; Sade,Soraya; Gantz,Alberto; Valdivia,Carlos E. |
| BACKGROUND: Frugivorous birds are phenologically linked to the fruits that they eat. When there is less fruit in seasonal environments, frugivorous birds complement their diet by eating invertebrates. The depth of the phenological link between frugivorous birds and their dietary resources has not been studied until now. The objective was to determine the possible phenological synchrony between the Austral thrush (Turdus falcklandii) and its dietary resource, fruits and annelids, found in the fragmented forests in the South of Chile. RESULTS: The numbers of thrushes, annelids, and fruits in fragments of native forest and anthropogenic grassland in Chile's Lake District were estimated annually. Spatial variation (i.e., forest and grassland) and seasonal... |
| Tipo: Journal article |
Palavras-chave: Annelids; Fleshy fruit; Phenology; Seasonality; Turdus. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100010 |
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