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| Registros recuperados: 15 | |
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| Argel-de-Oliveira,Maria Martha; Curi,Nancy A; Passerini,Tatiana. |
| The observation of parents feeding a captive fledgling of Great Kiskadee revealed that visitation is more frequent in the first hour after sunrising, with lesscr peaks along the day. The diet supplied consisted mainly of insects (Hymenoptera, Lepidoptera, Coleoptera, Diptera), along with other items as human-made materiais (food scraps, pellets of animal food), lizards (Hemidactylus mabouia), non-identified fruit pulp, gastropods and arachnids (Opiliones). The ability that P. sulphuratus has for identifying food items absent froni more natural habitats and for exploiting resources of unpredictablc spatial and temporal distributions confers the species a dietary flexibility that probably contributes to its efficiency in colonizing urban habitats. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passeriformes; Tyrannidae; Pitangas sulphuratus; Diet; Urban environment. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400027 |
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| Ramírez-Otárola,Natalia; Sabat,Pablo. |
| Digestive capabilities, such as the rates nutrient hydrolysis and absorption, may affect energy intake and ultimately feeding behavior. In birds, a high diversity in gut biochemical capabilities seems to support the existence of a correlation between the morphology and physiology of the intestinal tract and chemical features of the natural diet. However, studies correlating the activity of digestive enzymes and the feeding habits at an evolutionary scale are scarce. We investigated the effect of dietary habits on the digestive physiological characteristics of eight species of passerine birds from Central Chile. The Order Passeriformes is a speciose group with a broad dietary spectrum that includes omnivorous, granivorous and insectivorous species. We... |
| Tipo: Journal article |
Palavras-chave: Birds; Diet; Intestinal enzymes; Passeriformes; Food habits; Adaptation. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000100011 |
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| Paiaro,Valeria; Oliva,Gabriel E; Cocucci,Andrea A; Sérsic,Alicia N. |
| En este trabajo se caracterizó el volumen, la concentración y la composición de azúcares del néctar floral en Anarthrophyllum desideratum (DC) Benth., un arbusto endémico de la estepa Patagónica polinizado por aves Passeriformes, y se evaluó su variación espacio-temporal. Se analizaron las diferencias entre áreas ecológicas, poblaciones, plantas y años, y las relaciones entre rasgos, la temperatura, precipitación y tasa de visitas de las poblaciones. El néctar mostró un volumen promedio de 8,1 µl, una concentración de 28% y estuvo dominado por hexosas, como en otras especies ornitófilas. Los atributos del néctar estuvieron correlacionados a nivel poblacional, y las diferencias entre poblaciones explicaron la mayor parte de su variabilidad espacial. El... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anarthrophyllum desideratum; Área ecológica; Composición de azúcares; Concentración; Passeriformes; Población; Precipitación; Temperatura; Tasa de visitas; Volumen de néctar. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722012000200008 |
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| Lyra-Neves,Rachel M. de; Farias,Ângela M. Isidro de; Telino-Júnior,Wallace R.. |
| The objective of this study was to investigate feather mites on birds of the Family Emberizidae, to collect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 species was captured at the Refúgio Ecológico Charles Darwin, Igarassú, Pernambuco, Brazil, from August 1996 to July 1997. Five genera of mites from the superfamily Analgoidea were identified: Analges Nitzsch, 1818; Mesalgoides Gaud & Atyeo, 1967; Pterodectes Robin, 1877; Proctophyllodes Robin, 1877 and Trouessartia Canestrini, 1899. Among the 94 birds examined, 92 (97,87%) were infested. Regarding the prevalence, it was observed that the genera with higher percentage were, respectively, Pterodectes (88,04%), Proctophyllodes (56,52%) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Analgoidea; Ecology; Infestation; Passeriformes. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300019 |
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| BARBOSA,ANA ANGÉLICA ALMEIDA. |
| Hortia brasiliana Vand. (Rutaceae) é um arbusto comum em áreas de cerrado na região de Uberlândia, MG. Os indivíduos atingem de 0,5 a 2,0 m de altura e possuem flores de cor rósea e consistência coriácea, reunidas em densas inflorescências umbeliformes, terminais, com eixos resistentes. A antese ocorre ao longo do dia ou da noite e pode durar de 25 minutos a 3 horas, dependendo da temperatura. A flor é protândrica e produz ca. de 60 µl de néctar, cuja concentração de açúcares varia de 24 a 32%. A espécie é autocompatível. As flores são visitadas por seis espécies de aves Passeriformes das famílias Fringillidae, Thraupidae e Mimidae, que foram consideradas polinizadores efetivos. Este tipo de polinização por pássaros pousadores é inédita para o cerrado. Os... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rutaceae; Ornithophily; Passeriformes; Cerrado. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100013 |
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| González-Acuña,Daniel; Vergara,Francisco; Moreno,Lucila; Barrientos,Carlos; Ardiles,Karen; Cicchino,Armando. |
| A total of 185 birds (nine captured alive and 176 preserved in a museum), belonging to the families Furnariidae (n=14), Tyrannidae (n=4), Turdidae (n=24) and Icteridae (n=143) (Aves: Passeriformes) were searched for lice (Phthiraptera: Philopteridae, Menoponidae). The species collected and identified were: Furnaricola titicacae Carriker 1949 from Phleocryptes melanops (Vieillot 1817), and Picicola cuniculariae Cicchino 1981 from Geositta rufipennis fasciata (Burmeister 1860) (Furnariidae); Picicola foedus (Kellogg & Chapman 1899) from Xolmis pyrope (Kittlitz 1830) (Tyrannidae); Brueelia magellanica Cicchino 1986, B. persimilis Cicchino 1987 and Menacanthus eurysternus (Burmeister 1838) from Turdus falcklandii Quoy & Gaimard 1824 (Turdidae);... |
| Tipo: Journal article |
Palavras-chave: Lice; Phthiraptera; Birds; Passeriformes; Chile. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382006000200008 |
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| Aliabadian, M.; Roselaar, C.S.; Sluys, R.; Nijman, V.. |
| In the study of diversity patterns, the Mid-domain effect (MDE), which explains gradients in diversity solely on the basis of geometric constraints, has emerged as a null-model against which other hypotheses can be tested. The effectiveness, measured by its predictive power, of these MDE models appears to depend on the size of the study area and the range-sizes of the taxa considered. Here we test the predictive power of MDE on the species richness patterns of birds and assess its effectiveness for a variety of species range sizes. We digitised distribution maps of 889 species of songbird endemic to the Palearctic, and analysed the emergent biogeographic patterns with WORLDMAP software. MDE had a predictive power of 20% when all songbirds were included.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aves; Passeriformes; Palearctic; Mid-domain effect; Species richness; Geographic range size; 42.83. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/256132 |
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| CHAVES,FLAVIA G.; VECCHI,MAURICIO B.; LAURINDO,THIAGO F.S.; ALVES,MARIA ALICE S.. |
| We describe the nest, eggs, and nestlings of the Restinga Antwren (Formicivora littoralis), an endangered bird of Restinga ecosystem (sandy coastal plain vegetation) that is endemic to Rio de Janeiro state. Twelve nests were found at the edges of trails or natural gaps at Massambaba Restinga region, in different supporting plants and heights from the ground (X ± SD 1.27 ± 0.97 m, range 0.27 to 3.45 m). Nests were cup-shaped and were in horizontal forks attached to branches at three to five points with whitish, soft, and thin cotton-like vegetable fiber. The nests' cup shape and measurements were similar to congeneric species, but nest material was different. Eggs were white with brown spots concentrated on the large end or around the middle, giving the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Brazil; Breeding; Conservation; Endemic; Passeriformes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200547 |
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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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| Tavela,A.O.; Carretta Junior,M.; Oliveira,A.R.; Carneiro,F.T.; Silva,V.H.D.; Braga,F.R.; Peixoto,J.V.; Carvalho,G.D.; Araújo,J.V.; Paula,T.A.R.. |
| O trematodeo digenético Paratanaisia bragai é descrito como parasito dos túbulos coletores renais e ureteres de aves. Esse helminto é usualmente pouco patogênico para a maioria dos hospedeiros; porém, em altas cargas parasitárias e em animais mais suscetíveis, pode causar sérios danos que resultam em apatia, perda de peso, desidratação e até mesmo a morte. O presente trabalho objetivou relatar pela primeira vez o trematoide P. bragai parasitando os rins de um passeriforme da espécie Estrilda astrild, conhecido popularmente como bico-de-lacre, de distribuição cosmopolita. A partir da análise histopatológica dos rins da ave, observou-se a presença dos vermes adultos e de ovos, grande dilatação dos ductos coletores renais, destruição e achatamento das células... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Kidney; Trematode; Parasitism; Passeriformes. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000401276 |
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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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| Registros recuperados: 15 | |
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