Riqueza de aves da Fazenda Santa Rita, região dos Campos Gerais, Palmeira, Paraná, Brasil

Abstract

Luiz dos Anjos I Vinalto Graf 2 ABSfRACf. RICHNESS OF BIRDS OF SANTA RITA FARM, CAMPOS GERAIS REGION , PALMEIRA COUNTY , PARANÁ, BRAZIL. Two hundred and eighty eight bird species were registered in Santa Rita Farm, east of Paraná State in Brazil (28°18'S,49°48'W), from Februal)' 1990 to Janual)' '1991. Eighty four species were registered in ali 12 months and eighty three were registered once during this period. October was the richest in number of species (220) and Julywas the poorest (137). The naturallandscape ofthe Santa Rita farm is composed of open field with several patches of araucaria forest (from 10 to 40 ha) and some small areas of marshland. Two hundred and eight species occurred only in one of these habitats: 163 in the forest, 35 in the open field and 10 in the marshland. The others often occurred in both forest and open field ; there is a gradient of occurrence between them. Columba speciosa Gmelin, 1789; C. maculosa Temminck, 1813; Dolichonyx oryzivorus (Linnaeus, 1758) and Sporophila melanogaster (Pelzeln, 1870) were new field registers in Parana State. Because of its great number of bird species (some endangered species) and its landscape, composed of well preserved habitats, Santa Rita farm is shown as a strategic area for conservation.

Falconiformes assemblages in a fragmented landscape of the Atlantic Forest in Southern Brazil

“…At present it is restricted to more preserved sites (Houston, 1985). Research in the north of Paraná along Atlantic forest remnants shows species that have not been registered in our study (Anjos and Graf, 1993;Anjos et al, 1997;Krügel and Anjos, 2000;Anjos, 2001). It is probable that some of these species (Harpagus diodon, Leptodon cayanensis and Micrastur ruficollis) may be found in forest remnants of the northwestern region of the state of Paraná.…”

Taxocenose de aves em um remanescente da Floresta com Araucária no Sudeste do Paraná, Brasil

“…Espécies que ocupam o fragmento e a matriz a sua volta são mais comuns nas bordas, sendo assim são mais comuns em pequenos fragmentos, no qual tem um maior efeito de borda (Rappole & Morton 1985, Sisk et al 1997. Anjos & Graf (1993) mencionam que se existem muitos estágios na borda, com a altura da vegetação diminuindo gradativamente (como o encontrado neste remanescente) e não abruptamente, a avifauna pode ser rica em número de espécies. Isto pode ter favorecido a presença de guildas mais especialistas na borda, tal como os insetívoros de folhagem e de tronco, que usam principalmente os estratos intermediários de vegetação.…”

“…Esta oscilação na riqueza específica durante o ano é comumente encontrada em outros estudos ornitológicos (Abe 1997, Marterer 1996, Gimenes & Anjos 2000, Anjos & Graf 1993.…”

“…É escassa a literatura de trabalhos realizados em floresta com Araucária no estado do Paraná, sendo que os poucos municípios contemplados com estudos ornitológicos foram Curitiba por Anjos (1990), Palmeira por Anjos & Graf (1993), Ponta Grossa por Scherer-Neto et al (1994), Rio Azul e Mallet por Pichorim & Bóçon (1996) e a porção sul do estado por Straube & Arruda (1991). Na porção sudeste por sua vez, apenas um inventário foi realizado em um remanescente nos limites do município de Tijucas do Sul por Kaminski & Carrano (2006).…”

Taxonomy, distribution, natural history and conservation of the Russet-mantled Foliage-gleaner Syndactyla dimidiata (Pelzeln, 1859) (Aves: Furnariidae)

“…Several doubtful or erroneous records of this species exist: 1) Although it is said to occur in the Pantanal (Dubs 1992), there is no confirmed record of S. dimidiata for this region (Tubelis & Tomas 2003); 2) A record from the Rio Tibagi valley, Paraná, where this species has been considered rare (Anjos & Schuchmann 1997;, cannot be accepted either. Although this region has extensive grasslands, harboring some species typical of open Cerrado, birds restricted to gallery forests of the Cerrado have not been found there, where forests are dominated by the gymnosperm Araucaria angustifolia (Anjos & Graf 1993). This record has also not been accepted by Straube (2004), because it is from a region with "phytophysiognomy, climate and topography unsuitable with the range and ecological requirements" of this species.…”