{"title":"Avifauna urbana no Lago Pôr do Sol, Iporá, Goiás, Brasil","authors":"F. D. S. Silva, Daniel Blamires","doi":"10.35699/2675-5327.2007.23170","DOIUrl":null,"url":null,"abstract":"Bird communities in urban areas are poorly studied in Brazil. The purpose of the present work was to describe the avifauna of the Lago Pôr do Sol, an urban lake in the municipality of Iporá in the state of Goiás, central Brazil. The fieldwork was carried out from May 2001 to April 2002, during 24 biweekly visits to the area. A transect was used to estimate species richness and bird abundance. A total of 70 species (27.2/month) belonging in 32 families and 1,701 bird findings (141.6 findings/month) were recorded. Twenty-six (37.1%) of the species found in Iporá were not recorded in a similar survey in Goiânia, 234 km away. This seems to reflect differences in the original Cerrado physiognomies in the two areas. The division of species in trophic categories showed the Iporá bird community to be dominated by omnivorous and insectivorous species. However, considering the number of individuals for any trophic level, there was a prevalence of insectivores. On the other hand, species and individuals were distributed among four habitat categories, which are related to significant habitat heterogeneity in the lake. The Range Centre Index values for most species is under 0.5, suggesting that the Lago Pôr do Sol is close to the midpoint of the geographical ranges of the bird species recorded. \nKeywords: Cerrado, community, Goiás State, Range Centre Index, urban birds.","PeriodicalId":445542,"journal":{"name":"Lundiana: International Journal of Biodiversity","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lundiana: International Journal of Biodiversity","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35699/2675-5327.2007.23170","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Bird communities in urban areas are poorly studied in Brazil. The purpose of the present work was to describe the avifauna of the Lago Pôr do Sol, an urban lake in the municipality of Iporá in the state of Goiás, central Brazil. The fieldwork was carried out from May 2001 to April 2002, during 24 biweekly visits to the area. A transect was used to estimate species richness and bird abundance. A total of 70 species (27.2/month) belonging in 32 families and 1,701 bird findings (141.6 findings/month) were recorded. Twenty-six (37.1%) of the species found in Iporá were not recorded in a similar survey in Goiânia, 234 km away. This seems to reflect differences in the original Cerrado physiognomies in the two areas. The division of species in trophic categories showed the Iporá bird community to be dominated by omnivorous and insectivorous species. However, considering the number of individuals for any trophic level, there was a prevalence of insectivores. On the other hand, species and individuals were distributed among four habitat categories, which are related to significant habitat heterogeneity in the lake. The Range Centre Index values for most species is under 0.5, suggesting that the Lago Pôr do Sol is close to the midpoint of the geographical ranges of the bird species recorded.
Keywords: Cerrado, community, Goiás State, Range Centre Index, urban birds.
在巴西,城市地区的鸟类群落研究很少。本研究的目的是描述巴西中部Goiás州ipor市的城市湖泊Lago Pôr do Sol的鸟类。实地调查于2001年5月至2002年4月进行,期间每两周对该地区进行24次访问。样带用于估算物种丰富度和鸟类丰度。共记录32科70种(27.2只/月),发现鸟类1701只(141.6只/月)。在ipor发现的26种(37.1%)物种在234公里外的goi尼亚的类似调查中未被记录。这似乎反映了两个地区原始塞拉多地貌的差异。食性鸟类群落以杂食性和食虫性鸟类为主。然而,考虑到任何营养水平的个体数量,食虫动物普遍存在。另一方面,物种和个体分布在4个生境类别中,这与湖泊生境异质性显著有关。大部分物种的范围中心指数值在0.5以下,表明拉戈Pôr do Sol接近所记录鸟类地理范围的中点。关键词:塞拉多,社区,Goiás State, Range Centre Index,城市鸟类