15 documents found, page 1 of 2
Diet of two coexisting martins (Passeriformes: Hirundinidae) from southeastern ...
Oniki-Willis, Yoshika [UNESP]; Willis, Edwin O. [UNESP]; Machado, Vera Ligia Letizio [UNESP]; Lopes, Leonardo EstevesMade available in DSpace on 2022-05-01T16:02:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; Diets of birds are still a subject not well documented for many species of birds. Despite its importance for the understanding of the natural history and life history theory, the knowledge of Neotropical birds’ diet is still incipient. Here we studied the diets of two species of martins, the purple mart...
Natural history of the Lined Seedeater Sporophila lineola (Aves: Thraupidae) in...
Ferreira, Dalila de Fátima; Lopes, Leonardo EstevesThe Lined Seedeater (Sporophila lineola) is a migratory species that inhabits a variety of open habitats in South America. We studied the breeding biology and territorial behaviour of a colour-banded population of the species in the Universidade Federal de Viçosa, Campus Florestal (1–19,8808ºS, –44,4136ºW), during two breeding seasons (2014/2015 and 2015/2016), which spans from December to April. We monitored 7...
Seasonal distribution and range of the Blackish-blue Seedeater (Amaurospiza moe...
Lopes, Leonardo Esteves; Pinho, João Batista de; Benfica, Carlos Eduardo R. T.Avian bamboo specialists are an ecologically distinctive group of birds in the Neotropics with some seedeater species having nomadic movements following bamboo (Guadua, Chusquea or Rhipidocladum) mast seeding. We reviewed the range and seasonal distribution of Blackish-blue Seedeaters (Amaurospiza moesta) using published and unpublished records, museum specimens, sound libraries, and intensive field work. We re...
Morphological variation in the Cinnamon Tanager Schistochlamys ruficapillus Ave...
Lopes, Leonardo Esteves; Gonzaga, Luiz PedreiraThe Cinnamon Tanager Schistochlamys ruficapillus inhabits semi-open grassy country, primarily in Brazil south of Amazonia. Three subspecies are currently recognized, one of which, S. r. sicki, is poorly known and endemic to the central Brazilian savannas (Cerrado). This paper analyses individual and geographic variation in this species on the basis of body measurements and plumage coloration. Larger birds are u...
Morphological variation of the Long-tailed Reed Finch Donacospiza albifrons (Vi...
Lopes, Leonardo EstevesThe Long-tailed Reed Finch Donacospiza albifrons of south-central South America is patchily distributed in a variety of open habitats, usually near water. I present a detailed study of morphological variation based on 141 specimens, describing its plumage sequence and presenting notes on its molt and breeding. The Long-tailed Reed Finch shows no sexual dichro-matism, but males average longer-winged than females...
Soil attributes drive nest-site selection by the campo miner Geositta poeciloptera
Meireles, Ricardo Camargos de; Teixeira, João Paulo Gusmão; Solar, Ricardo; Vasconcelos, Bruno Nery F.; Fernandes, Raphael B. A.Substrate type is a key-factor in nest-site selection and nest architecture of burrowing birds. However, little is known about which factors drive nest-site selection for these species, especially in the tropics. We studied the influence of soil attributes on nest-site selection by the campo miner Geositta poeciloptera, an open grassland bird that builds its nests within soil cavities. For all nests found, we m...
Variation of plumage patterns, geographic distribution and taxonomy of the Unic...
Lopes, Leonardo EstevesThe Unicolored Blackbird Agelasticus cyanopus (Vieillot, 1819) is a marsh bird with four allopatric subspecies restricted to lowlands in South America east of the Andes. I conducted a taxonomic revision of the species based on analysis of external morphological characters of 288 study skins, including all types available. My revision shows that: 1) Leistes unicolor Swainson, 1838, is a senior synonym of A. c. x...
Morphological data support the recognition of four species in the genus Siryste...
Lopes, Leonardo Esteves; Gonzaga, Luiz PedreiraSirystes is a widespread genus in the Neotropical region. Historically, five subspecies were recognized in a single widespread species, but more recently four separate species have been recognized, based on vocalizations and limited morphological data. In this paper, we analyze individual and geographic variation in this genus on the basis of body measurements and plumage coloration of 514 specimens, including ...
Taxonomy, distribution, natural history and conservation of the Russet-mantled ...
Lopes, Leonardo Esteves; Gonzaga, Luiz PedreiraRusset-mantled Foliage-gleaner is an extremely poorly known species, the range of which is centered in the Brazilian Cerrado, where it inhabits riparian forests. Two subspecies are recognized, but the limits of their ranges are controversial. Fur- thermore, it was recently suggested that the species is one of the few in the family Furnariidae to show sexual dichromatism. In this paper we examined the plumage co...
Sobre a ocorrência de Philornis angustifrons e P. deceptiva (Diptera, Muscidae)...
Higgins, Barbara Fernandes; Lopes, Leonardo Esteves; Santana, Fernando Henrique de Assis; Couri, Márcia Souto; Pujol-Luz, José RobertoThe first report of Philornis angustifrons and P. deceptiva infesting nests of Suiriri affinis and S. islerorum in area of Distrito Federal's savanna is presented. It is known that larvae of these species have a strict relationship of parasitism with birds. The pupae were collected after the abandonment of the nests and the flies emerged in a period of about 13 days.