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Registros recuperados: 37 | |
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Sazima,Ivan; Sazima,Cristina. |
Some bird species feed on external parasites, such as ticks and flies, on the body of mammals (hosts or clients). So called cleaner birds that occur in Brazil were reviewed recently, but gathering of significant new data indicates the need for an update and a brief reappraisal of such association. New records raise the number of known clients for some cleaning birds. The Southern Caracara (Caracara plancus) picks ticks on cattle, and the Black Caracara (Daptrius ater) picks ticks on capybaras. The Wattled Jacana (Jacana jacana) picks ticks, horseflies, arthropods and organic debris on capybaras, and tick-picking on capybaras by the Shiny Cowbird (Molothrus bonariensis) is substantiated by photographs. The Cattle Tyrant (Machetornis rixosa) deftly catches... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cleaning symbiosis; Ardeidae; Falconidae; Jacanidae; Tyrannidae; Icteridae. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000100028 |
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Sazima,Ivan. |
Small psittacids remain unrecorded as dispersal agents of palm fruits in Brazil. I record here the plain parakeet (Brotogeris tirica), an Atlantic forest endemic, feeding on and dispersing the fruits of the palm Syagrus romanzoffiana at Ubatuba, northern coast of São Paulo, Southeastern Brazil. The birds removed the fruit and carried it away from the mother-tree in about 40% of the feeding records. While perched on trees and shrubs of the understorey, the parakeets removed and ingested most of the mesocarp, dropping the partly consumed fruit. As the parakeets damaged no the embryo and may feed at a distance from the mother-tree, they act as primary dispersal agents. This is the first substantiated record of a small Neotropical psittacid as a stomatochorous... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird-plant symbiosis; Psittacidae; Arecaceae; Feeding behaviour; Synzoochory. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000100026 |
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Sazima,Ivan; Sazima,Cristina. |
Several bird species feed on a variety of external parasites and epibionts, organic debris, dead and wounded tissue, clots and blood, and secretions from the body of other vertebrates (hosts or clients). We present an overview of so called cleaner birds from the Neotropics based on field records, literature, and photo survey. We found that 33 bird species in 16 families practice cleaning even if some of them do so very occasionally. The birds range from the Galápagos ground finch Geospiza fuliginosa to the widespread black vulture Coragyps atratus. Clients mostly are large herbivores such as capybaras, deer, and livestock, but also include medium-sized herbivores such as iguanas and tortoises, and carnivores such as boobies and seals - a few bird species... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cleaning symbiosis; Opportunistic birds; Association with vertebrates; Ectoparasite and tissue removal. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400025 |
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Krajewski,João Paulo; Bonaldo,Roberta Martini; Sazima,Cristina; Sazima,Ivan. |
A presumed example of protective mimicry between the yellow goatfish, Mulloidichthys martinicus (Mullidae) and the smallmouth grunt, Haemulon chrysargyreum (Haemulidae) is described from Fernando de Noronha Archipelago, NE Brazil. The goatfish and the grunt share a similar overall shape and colour pattern. We found that these two species regularly form mixed schools around reefs. Additionally, when chased small groups of yellow goatfish join schools of smallmouth grunts and behave like them. The colour and shape resemblances between the two species enable their mixed schooling, and enhance the protection against visually oriented predators for both of them. Thus, we suggest that the protective association herein reported for the goatfish and the grunt may... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Protective mimicry; Social mimicry; Mixed schooling; Mulloidichthys martinicus; Haemulon chrysargyreum. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200016 |
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Sazima,Ivan. |
Information on the role of smooth-billed anis (Crotophaga ani) as tick-pickers on mammals remains controversial. I record here these birds removing ticks and pecking at wounds of capybaras (Hydrochoerus hydrochaeris) in a small reserve at Campinas, São Paulo, southeastern Brazil. The birds inspected the mammals skin, both in places with and without hair. The hair was parted with bill movements, and ticks were removed by vigorous pulling. The birds also pecked at open or healing sores, from which they extracted small portions of blood clots and dead tissue. The capybaras appeared oblivious to the birds activity. Even in the case that the cleaning behaviour is restricted to some bird individuals and populations, or places and periods, this record validates... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird-mammal symbiosis; Tick-removing; Cleaning behaviour; Hydrochoerus. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000100022 |
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Sazima,Ivan; Sazima,Marlies. |
A goiaba-serrana (Acca sellowiana, Myrtaceae) é uma das poucas espécies vegetais cujas pétalas são habitualmente usadas como alimento por aves nos Neotrópicos. Registramos aqui o consumo de pétalas desta mirtácea por nove espécies de aves Passeriformes, numa arvoreta isolada em área urbana de Gramado, Rio Grande do Sul. A maior freqüência de visitas foi registrada para espécies de Thraupidae, aves predominantemente frugívoras. As aves tomavam as pétalas entre as mandíbulas e arrancavam ou cortavam porções, deixando sinais característicos nas flores. Thraupis sayaca e Tangara preciosa foram registrados recolhendo porções de pétalas e levando-as entre as mandíbulas, a primeira espécie tendo sido duas vezes observada fornecendo pétalas a ninhegos. Devido ao... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos florais; Áreas urbanizadas; Passeriformes; Arborização urbana. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200035 |
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Sazima,Ivan. |
The coatis (Procyonidae) and some species of mongooses (Herpestidae) are diurnal, small to medium-sized carnivores that live in groups and feed opportunistically on small animals and fruits. A comparison of selected features is here presented for two coati species (Nasua narica and N. nasua) and the banded mongoose (Mungos mungo). The former two dwell in the Neotropical region, whereas the latter occurs in the Ethiopian realm. Both the coatis and the mongoose are apt to live near human settlements and capitalise on food refuse. Additionally, coatis and mongooses habituate to humans, and sometimes are a nuisance. These habits, plus their almost constant quest for food, lead these carnivores to meet other mammal types at feeders and garbage dumps and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opportunistic behaviour; Cleaning symbiosis; Convergence; Procyonidae; Herpestidae. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300040 |
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Sazima,Ivan. |
Play is a behaviour known mostly for mammals, although birds are recorded to play as well. Here I describe the play behaviour for two bird species, the Neotropic Cormorant (Phalacrocorax brasilianus) and the Green Heron (Butorides striata) in southeastern Brazil. Juvenile and adult cormorants were recorded to manipulate sticks, leaves, rootlets, and plant debris while on the ground. They also played with sticks, leaves, pods, and plant debris, as well as live or dead fish while in the water, repeatedly grabbing the object and submerging it. When the object was a fish, they tossed it in the air as well. Juvenile herons played with small pieces of wood, fruits, and other floating objects, which they picked up and tossed repeatedly in the water. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Phalacrocorax brasilianus; Butorides striata; Play behaviour; Object and social play; Motor training. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200025 |
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Registros recuperados: 37 | |
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