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Spectrograms were produced in a personal computer with Cool Edit 96, with a resolution of 256 bands. Dias (1998) Range extensions and new records for forest birds in southern Rio Grande do Sul, Brazil. The following vocal variables were analyzed from the tape-recordings: pace (from songs and alarm calls), total duration (from songs only), frequency (from song and alarm call notes), and length, shape and structure of notes (from songs and alarm and contact calls).

Since this latter date, all types of vocalizations uttered by each individual detected in the field and the plumage characteristics of birds carefully observed have been recorded. different individuals detected per field trip) were accumulated up to Opportunistically in 1998/1999 and systematically since 2001, specimens and vocalizations of tapaculos having a typical S. fastpaced series with about 5 notes/s) were sampled at the Serra Geral, Serra do Mar and Serra da Mantiqueira ranges in the states of Rio Grande do Sul, Santa Catarina, Paraná, São Paulo, Rio de Janeiro and Minas Gerais. Municipalities in our study area along the BR 163, Novo Progresso and Altamira, ranked second and third among the ones losing more forest in the period, with increases of 70% and 80%, respectively, in their cleared area compared to the previous period.

Elias Coelho, Universidade Federal do Rio de Janeiro (UFRJ). Specimens were measured with a caliper to the nearest 0.1 mm.

In addition to the 46 specimens collected during this study, 68 skins representing populations attributed to the S. The following morphometric data were taken: bill length (from anterior edge of the operculum to the bill tip), length of the exposed culmen, bill depth (taken at the posterior edge of the nares), wing length (chord), tail length (from the insertion of the central rectrices to their tip) and tarsus length. 118: and (2001) Distribuição e conservação da avifauna florestal na Serra dos Tapes, Rio Grande do Sul, Brasil, p In: J.

Recently, in the Serra do Sudeste region, southern Rio Grande do Sul State, Brazil, the author and Rafael A. speluncae occurring elsewhere in the Atlantic forest region. speluncae are analyzed and, as a result, a new species is herein proposed. An ambitious plan to avoid that by creating protected areas, land zoning, solving land-tenure issues and other activities is being developed by the federal government to avoid the foreseen catastrophe.

Dias found a population that matched the description of the Misiones birds and noticed that this population had a slower-paced song (i.e. Furthermore, remarks on the taxonomy, systematics and biogeography of the entire S. METHODS Some plumage patterns within Scytalopus, such as the barring on the flanks, are present in younger birds (juveniles, immatures, and subadults) of virtually all members of the genus, disappearing in full adults of several species, but being present in all ages of others (Fjeldså and Krabbe 1990, Whitney 1994, Krabbe and Schulenberg 1997). Whether it will ever work (or even be implemented) remains to be seen but so far the results are not encouraging. (2001) list several candidate sites for protected areas in the Tapajós-ingu interfluvium, including the Serra do Cachimbo, where a military base is now the best guarantee of conservation. 4,56-5,86 notas/s), por emitir gritos distintos quanto a estrutura geral e forma das notas e por ter em seu repertório vocal um tipo de canto quase único, cuja parte final é notavelmente acelarada até tornarse semelhante a um trinado (vs. Entretanto, análises baseadas em séries pequenas e não vinculadas a um tipo vocal são desencorajadas. Additionally, alternative biogeographic hypotheses to explain the origins and the diversification of the S. Even after a meticulous revisional study, involving primarily Andean taxa, Zimmer (1939) was not satisfied with his own results: ( ) there are some confusing portions of the picture that more material will be needed to clarify and The group is an unusually difficult one and although there are a number of species that must be recognized, there is such similarity of pattern and color, all in browns and grays without striking differences, that exact definitions are not easy. This latter morphotype, which has been attributed to the superficially similar immature plumage of typical S. da Fonseca (unpublished report) found that birds in northernmost Rio Grande do Sul (contiguous with the Misiones forest) and in the highlands of southeastern Santa Catarina State (Planalto) have similar, slow-paced songs. Better than any fancy sustainable-use public policy, keeping areas very difficult to reach and living conditions extremely hard have been the most efficient factors in conserving tropical forests, and the BR 163 is an example.