Selection of radio transmitter and attachment method for post-release monitoring of captive-bred reintroduced Red-billed Curassow Crax blumenbachii, Brazil

Long-term monitoring of reintroduced individuals is a central component of many endangered species reintroduction programs. Radio-telemetry techniques are rarely used to monitor reintroduced captive-bred Cracids and few data exist regarding possible adverse effects of radio-tagging Cracids. In this study, we identify an appropriate radio transmitter design and develop a suitable attachment method that minimizes anthropogenic influence and enables long-term, post-release monitoring (2-3 years) of reintroduced captive-bred Red-billed Curassows in the Brazilian Atlantic Rainforest. We also review studies about the effects of different VHF radio transmitter models on survival, reproduction, behavior, and physiology of Galliformes.

THE TADPOLE of PHYSALAEMUS MOREIRAE (ANURA: LEIUPERIDAE)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comparing the tadpoles of Hyla geographica and Hyla semilineata

External morphology, internal oral anatomy, and chondrocranial anatomy were examined for tadpoles of Hyla geographica from the Amazon rainforest, Brazil, and Hyla semilineata from the Atlantic rainforest, Brazil. Here, we provide morphological larval data to help diagnose these closely related species. Scanning electron microscopy analysis of buccal morphology showed the most distinctive features between these species: the distance between the lingual papillae in the buccal floor of H. geographica is three times greater than that distance in H. semilineata, and the relative size of the lingual papillae in H. geographica is less than half their size in H. semilineata. Although the chondrocranium of both species is identical, and the external morphology of the larvae of both taxa is very similar, they differ greatly in size at most developmental stages. A multivariate analysis of covariance, corrected for stage and size, also showed a significant difference between morphometric measurements of the two species. These differences support the existence of two separate taxa.

Efeito do tratamento químico na sanidade de sementes de espécies florestais

This study evaluated the effect of different fungicide and sodium hypochlorite treatments in reducing the incidence of fungi on seeds of native species of the Atlantic rainforest. The experiment was done using the completely randomized design in a 5×5 factorial with five levels of factor A (forest species) and five levels of factor B (chemical treatment and surface disinfection with sodium hypochlorite) with four replications. The fungal genera Fusarium, Alternaria, Aspergillus and Penicillium were identified. The species 'Jacarandáda- Bahia' and 'Ipê-roxo' had lower fungal incidence, 1.0% and 1.3%, respectively. Except for 'Angico Vermelho', the fungicide pencycurom and sodium hypochlorite were not significantly different from the control in the species evaluated. Seed treatment with fungicides 'Captan' and 'Tiram' yielded satisfactory results in reducing the incidence of fungal contamination in forest species seeds.

Morphological description of the nymphal stage of Amblyomma geayi and new nymphal records of Amblyomma parkeri

The external morphology of the nymph of Amblyomma geayi Neumann is described by optical and scanning electron microscopy. Unfed nymphs were obtained from an engorged A. geayi female, which had been collected on a sloth (Bradypus variegatus) from Belém municipality, State of Pará, northern Brazil, and was kept under laboratory conditions. With the present description, we propose a modification of a taxonomic key published in 2010 for the Amblyomma nymphs that occur in Brazil, through the inclusion of A. geayi. The nymph of A. geayi is morphologically very similar to the nymph of Amblyomma parkeri Fonseca and Aragão, with only slight morphological differences related to scutal surface and punctuations (more shagreened and less punctuated in A. geayi). These 2 nymphs differ from all other known Amblyomma nymphs from Brazil by the combination of auriculae present as small posterolateral rounded projections, eyes located at the level of the scutal midlength, and a rounded hypostome. These nymphal similarities as well the morphology of the adult stage corroborate previous studies that showed that A. geayi and A. parkeri are genetically closely related. Unpublished host records of the nymphs of both A. geayi and A. parkeri are provided. Established populations of A. geayi and A. parkeri seem to be geographically separated, since all confirmed records of A. geayi are from the northern half of South America (mainly the Amazonian region) and Central America, whereas all known records of A. parkeri are from the Atlantic rainforest biome in northeastern, southeastern, and southern Brazil. © 2013 Elsevier GmbH.

Disturbances, elevation, topography and spatial proximity drive vegetation patterns along an altitudinal gradient of a top biodiversity hotspot

The correlation between vegetation patterns (species distribution and richness) and altitudinal variation has been widely reported for tropical forests, thereby providing theoretical basis for biodiversity conservation. However, this relationship may have been oversimplified, as many other factors may influence vegetation patterns, such as disturbances, topography and geographic distance. Considering these other factors, our primary question was: is there a vegetation pattern associated with substantial altitudinal variation (10-1,093 m a.s.l.) in the Atlantic Rainforest-a top hotspot for biodiversity conservation-and, if so, what are the main factors driving this pattern? We addressed this question by sampling 11 1-ha plots, applying multivariate methods, correlations and variance partitioning. The Restinga (forest on sandbanks along the coastal plains of Brazil) and a lowland area that was selectively logged 40 years ago were floristically isolated from the other plots. The maximum species richness (>200 spp. per hectare) occurred at approximately 350 m a.s.l. (submontane forest). Gaps, multiple stemmed trees, average elevation and the standard deviation of the slope significantly affected the vegetation pattern. Spatial proximity also influenced the vegetation pattern as a structuring environmental variable or via dispersal constraints. Our results clarify, for the first time, the key variables that drive species distribution and richness across a large altitudinal range within the Atlantic Rainforest. © 2013 Springer Science+Business Media Dordrecht.

Influência da vegetação nativa de Mata Atlântica sobre a ocorrência e distribuição de ácaros (Acari) da seringueira (Hevea brasiliensis Muell Arg.) no estado da Bahia

Pós-graduação em Biologia Animal - IBILCE

Ecologia de hemiepífitas estranguladoras no Parque Estadual da Ilha do Cardoso

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Cordia verbenacea DC: perfil morfo-anatômico, histoquímico, farmacognóstico e avaliação da atividade anti-candida do extrato hidroetanólico e suas frações

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O tipo de mesohabitat (corredeira e remanso) e a complexidade do substrato afetam a fauna de macroinvertebrados aquáticos de riacho

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ecologia alimentar das quatro espécies dominantes da anurofauna de serapilheira em um gradiente altitudinal na ilha de São Sebastião, SP

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Padrões fenológicos em ecossistemas em processo de restauração e em fragmento florestal vizinho

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fenologia reprodutiva da palmito Euterpe edulis (Arecaceae) e sua influência na abundância de aves frugívoras na floresta Atlântica

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Variação morfológica e química dos frutos na escolha dos animais frugívoros da Mata Atlântica

Pós-graduação em Ciências Biológicas (Biologia Vegetal) - IBRC

Biologia e ciclo de vida de Astyanax cf. scabripinnis paranae Eigenmann, 1914 (Characidae, Tetragonopterinae), no Ribeirão Grande, Parque Estadual da Serra do Mar, núcleo Santa Virginia, SP

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)