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| Registros recuperados: 21 | |
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| Fusco,Luciano S.; Cajade,Rodrigo; Piñeiro,Jose M.; Torres,Ana M.; Silva,Igor R. F. da; Hyslop,Stephen; Leiva,Laura C.; Pimenta,Daniel C.; Bustillo,Soledad. |
| Abstract Background: Argenteohyla siemersi (red-spotted Argentina frog) is a casque-headed tree frog species belonging to the Hylidae family. This species has a complex combination of anti-predator defense mechanisms that include a highly lethal skin secretion. However, biochemical composition and biological effects of this secretion have not yet been studied. Methods: The A. siemersi skin secretion samples were analyzed by mass spectrometry and chromatographic analysis (MALDI-TOF/MS, RP-HPLC and GC-MS). Proteins were also studied by SDS-PAGE. Among the biological activities evaluated, several enzymatic activities (hemolytic, phospholipase A2, clotting, proteolytic and amidolytic) were assessed. Furthermore, the cytotoxic activity (cytolysis and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Argenteohyla siemersi; Hylidae; Skin secretion; Tree frog; Cytotoxicity. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992020000100306 |
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| Alves,Ana C.R; Carvalho e Silva,Sérgio Potsch de. |
| The larva of Scinax similis (Cochran, 1952) is described from Ilha do Fundão (Rio de Janeiro, Rio de Janeiro State, Brazil). Comparisons with other species of the group that occur in Southeastern Brazil are added. The larva of S. similis can be distinguished by the following diagnostic features: (1) eyes large in relation to body length (17,3%), body height (26,8%), and body width (29,7%), interocular distance three times larger than eye diameter; (2) lower beak with two transverse stripes, proximal half white and distal half black. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylidae; Scinax similis; Scinax ruber group; Larval morphology; Southeastern Brazil. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200016 |
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| Leon,Evelina; Peltzer,Paola M.; Lorenzon,Rodrigo; Lajmanovich,Rafael C.; Beltzer,Adolfo H.. |
| ABSTRACT Increased anthropogenic-made sounds such as traffic noises contribute to acoustic pollution, which produces deleterious effect on song-vertebrates. We compared the advertisement call of Scinax nasicus (Cope, 1862) males in natural (as a reference or control, Site A) and Sites affected by traffic noises (Site B). Call structure was recorded and it was amplified in sonograms (software Raven Pro 1.5). Seven variables were measured on its advertisement call: duration (s), number of notes, number of pulses per note, maximum and minimum frequency (kHz), dominant frequency (kHz) and amplitude (dB). In addition, at each Site the background noise (the fundamental frequency, F0 and amplitude, dB) was measured. The amplitude of background noise reached... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Vocalization; Vocal adjust; Hylidae. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100207 |
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| Santos,Ednilza M.; Almeida,Argus V.; Vasconcelos,Simão D.. |
| Although Brazil encompasses one of the most abundant anuran faunas in the world, quantitative information on anuran ecology and diet are limited, especially in the Northeastern region. We analyzed the diet of six species: Hyla albomarginata, Hyla cf. branneri, Hyla minuta, Phyllomedusa aff. hypochondrialis (Hylidae), Leptodactylus natalensis, and Physalaemus cuvieri (Leptodactylidae) in a temporary pond in a rainforest remnant in Pernambuco, between 1999-2000. We analyzed diet composition, degree of food preference, and seasonal variations in diet. Leptodactylus natalensis and P. cuvieri showed higher diet diversity, whereas H. minuta consumed fewer food items. Insecta, Arachnida, and plants were preferential items for most species. Acari were consumed by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylidae; Leptodactylidae; Diet; Frogs; Pernambuco. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000400014 |
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| Galdino,Conrado A. B.; Carvalho Jr.,Ronald R.; Menezes,Mauren A. V. Noronha e; Nascimento,Luciana B.. |
| We studied the pattern of habitat use by the tree frog Scinax aff. perereca. Fieldworks were performed from August 1996 to August 1997 at Parque das Mangabeiras, Belo Horizonte, State of Minas Gerais, southeastern Brazil. Calling males were observed in September, October and December 1996, February to April and June 1997. Females were found only in October 1996. Specimens were found perched on vegetation, on the ground or on stones near waterfall. At Parque das Mangabeiras, S. aff. perereca occupied nine types of substrata. The most frequently used substrata were shrubs, stones at the stream edges, and fallen trunks. The pattern of spatial occupation varied among months. Males were found calling in aggregations on the vegetation and spatial niche breadth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylidae; Scinax; Habitat use; Atlantic forest; Environment. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300018 |
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| Hoogmoed, M.S.. |
| In the present paper Hyla ornatissima Noble is removed from the synonymy of Hyla granosa Boulenger, and resurrected as a separate species on the basis of morphological, ecological and acoustical differences. Another relative of this group occurring in Guiana is Hyla sibleszi Rivero. Because of its superficial resemblance with these frogs Hyla punctata (Schneider), of another species-group, is also treated. All four species are extensively described, data on life history and distribution are given. H. sibleszi, so far only known from the type material and some associated specimens, is reported from several new localities in Venezuela and Guyana. It is suggested that the function of the intricate dorsal pattern of H. ornatissima serves to protect the animal... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amphibia; Hylidae; Hyla ornatissima Noble; Taxonomic revision; Species descriptions; Distribution data; 42.82. |
| Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/323946 |
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| Costa-Pereira,Raul; Martins,Fernando Ibanez; Sczesny-Moraes,Eurico Antonio; Brescovit,Antonio. |
| Praying mantis and spider species are common food items in the diet of several anuran species. Nevertheless, in this study we report the predation of young treefrogs Osteocephalus taurinus by two spider species, a Pisauridae and a Trechaleidae (Neoctenus sp.) and by the praying mantis Eumusonia sp. in Mato Grosso, Central Brazil. The great abundance of this treefrog in the region, combined with its small body size during the juvenil stage, favor its predation by generalists predators. Indeed, more studies are needed to quantify the real influence of invertebrate predators on anuran populations. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eumusonia; Neoctenus; Pisauridae; Throphic generalism; Hylidae. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000300042 |
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| Volkmer,Gabriele; Fonte,Luis F. M. da; Brum,Fernanda T.; Verrastro,Laura. |
| RESUMO Estudos sobre distribuição espacial e temporal de anfíbios têm se mostrado importantes para o entendimento das relações entre as espécies e o ambiente. Nesse sentido, constata-se que essas informações acerca de espécies do gênero Sphaenorhynchus Tschudi, 1838 no Rio Grande do Sul ainda não foram levantadas. Esta pesquisa, cujo objetivo principal foi a caracterização da distribuição espacial e temporal de Sphaenorhynchus surdus (Cochran, 1953) durante atividade de vocalização, bem como a análise dos principais fatores climáticos associados a essa atividade, foi conduzida em três corpos d’água com diferentes características da região dos Campos de Cima da Serra, nos municípios de Bom Jesus e Vacaria. As expedições a campo aconteceram mensalmente com a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylidae; Sítio de vocalização; Turno de vocalização; Rio Grande do Sul. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100229 |
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| Schineider,José Alberto P.; Teixeira,Rogério L.. |
| Some anuran amphibians use the bromeliads during the entire life cycle and others only as diurnal shelter. At the sandy coastal plain of Linhares, State of Espírito Santo, Southeastern Brazil, 676 bromeliads were examined, of which 303 of Aechmea blanchetiana (Baker) L. B. Smith., 1955, 287 of Aechmea nudicaulis (L.) Griseb., 1864, and 86 of Vrisea procera (Mart. Ex Schult. f.) Wittm, 1891. The morphometric and physical-chemical analysis of different bromeliads evidenced variations among plants. During the period sampled, six anuran species were found inside the plant axils. The hylid frog Phyllodytes luteolus (Wied, 1824) was the most abundant species (260 specimens). Its abundance was higher in the epiphyte bromeliad Vrisea procera. Phyllodytes luteolus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hylidae; Leptodactylidae; Bufonidae; Bromeliad; Sandy coastal plain. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200005 |
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| Hoogmoed, M.S.. |
| During field work in Venezuela and Brazil a difference in call was noticed between specimens of large hylids of the Hyla boans-group. Based on this and on morphological differences, it was concluded that Hyla wavrini Parker, 1936, up till now considered a synonym of Hyla boans (Linnaeus, 1758), should be considered a valid species, of which Hyla miranda-ribeiri Melin, 1941 is a synonym. Durante trabajo de campo en Venezuela y el Brasil se nota una diferencia en el canto de especimenes de gran Hílidos del grupo Hyla boans. Basandose en este observación y en diferencias morfológicas, se concluye que Hyla wavrini, considerado até horita como sinónimo de Hyla boans debe ser considerado como especie valido, y que Hyla miranda-ribeiri es un sinónimo de el.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Anura; Hylidae; Hyla wavrini; Hyla boans; Resurrection; Synonymy; Call; Neotropics; Venezuela; Brazil; 42.82. |
| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/318987 |
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| Almendáriz,Ana; Brito,Jorge; Batallas,Diego; Ron,Santiago. |
| Las ranas ecuatorianas del género Hyloscirtus incluyen 16 especies descritas, de las cuales 11 pertenecen al grupo H. larinopygion. Su distribución se limita a los flancos de la Cordillera de los Andes, tanto al oriente como al occidente. Una evaluación de la herpetofauna en el sector meridional de la Cordillera del Cóndor (bosques montanos sobre mesetas de arenisca) en la provincia de Zamora Chinchipe, Ecuador, condujo al descubrimiento de una especie nueva del grupo que describimos aquí como Hyloscirtus condor sp. nov.; se analizan los renacuajos, las llamadas de anuncio y se estima las relaciones filogenéticas de la especie nueva y de las especies relacionadas en base a nuevas secuencias de los genes mitocondriales 12S, tRNA Val y 16S, con un total de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Especie nueva; Hylidae; Hyloscirtus condor; Ecuador; Filogenia; Información ecológica. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014000400001 |
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| MIJARES-URRUTIA,A.. |
| It is described a new species of treefrog of the genus Hyla, H. amicorum, from the Cerro Socopo, state of Falcón, western Venezuela. This new taxon can be differentiated from the congeners reported from Venezuela by the combination of characteristics as follow: small size (22.6 mm, in male), vestigial webbing between toes II and III, belly strongly areolated, skin dorsally smooth, vent covered totally by a skin fold, no pattern on dorsum, dentigerous processes of the vomer arranged forming a wide "U", located slightly behind and between the choanae. Intrageneric relationships of this new species are obscure, but a close relationships with those groups of H. minuta or H. microcephala groups would not be discarded, nevertheless as long as show unique... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyla amicorum; Amphibia; Hylidae; Estado Falcón; Venezuela. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000400013 |
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| Registros recuperados: 21 | |
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