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Motta-Junior,José Carlos; Granzinolli,Marco Antonio Monteiro; Monteiro,Alberto Resende. |
Sixteen opportunistic field observations of eight species of Brazilian raptors (Falconiformes and Strigiformes) are reported here as a contribution to the knowledge of the natural history of these poorly studied birds in Brazil. The observations are related to the food habits (Buteo albicaudatus, Herpetotheres cachinnans, Milvago chimachima, Falco femoralis), reproduction (Asio stygius, Megascops choliba), mobbing behaviour elicited in other birds (Geranospiza caerulescens, H. cachinnans, F. femoralis, A. stygius, Athene cunicularia) and a rare case of leucism in owls (A. cunicularia). |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Falconiformes; Strigiformes; Food habits; Breeding; Mobbing behaviour; Leucism; Brazil. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000400042 |
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Bueno,Adriana de Arruda; Belentani,Sonia Cristina da Silva; Motta-Junior,José Carlos. |
The feeding ecology of the maned wolf (Chrysocyon brachyurus) was studied from 1998 to 2002 in the Ecological Station of Itirapina, São Paulo State, southeastern Brazil, including estimates of prey number and biomass consumption. A total of 325 faecal samples was collected in the area. The species is omnivorous, with a broad diet including 68 species or morphospecies of fruits and animals. Armadillos (Dasypodidae), wolf's fruit (Solanum lycocarpum) and small mammals (mostly Clyomys bishopi) were the bulk of the diet, comprising 72.8 % of the total estimated biomass consumed (185,323.4 g). In terms of frequency of occurrence, on the other hand, only small mammals and other miscella-neous fruits yielded 43.4 % of the total occurrences (N = 1,054). Animal... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chrysocyon brachyurus; Maned wolf; Savannah; Grassland; Feeding ecology; Diet; Brazil. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032002000200007 |
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Motta-Junior,José Carlos. |
I observed, and documented in detail, Ferruginous Pygmy Owl (Glaucidium brasilianum) predation on a mobbing Fork-tailed Flycatcher (Tyrannus savanna) in south-east Brazil. Events described in this account are supported with original photos. In addition to the predation event, I list 12 mobbing bird species that were alarmed by the presence of this raptor in the study area, including Trochilidae (Eupetomena macroura), Formicariidae (Formicivora rufa), Tyrannidae (Camptostoma obsoletum, Elaenia cristata, E. flavogaster, E. chiriquensis, T. savana, Myiarchus tyrannulus), Turdidae (Turdus leucomelas, T. amaurochalinus, T. rufiventris) and Emberizidae (Coryphospingus cucullatus). The Fork-tailed Flycatcher may represent 35-76.8% of the pygmy-owl body mass... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Owls; Tyrant-flycatchers; Mobbing behaviour; Predation; Eyespots; Brazil. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000200038 |
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Motta-Junior,José Carlos; Granzinolli,Marco Antonio Monteiro; Develey,Pedro Ferreira. |
O cerrado é um dos biomas mais ameaçados no mundo, apresentando algumas das maiores taxas de destruição causadas principalmente pela agropecuária. Poucos estudos têm avaliado a diversidade local de aves no cerrado, especialmente em áreas marginais desse bioma. A Estação Ecológica de Itirapina (EEI) contém um dos últimos remanescentes de campos naturais e cerrados do estado de São Paulo. Um levantamento das aves desta unidade de conservação, feito tanto por observações casuais como sistemáticas entre 1998 e 2007, e complementado por revisão de literatura, revelou que 231 espécies apresentaram ocorrência recente na área. Desse total, 38 espécies (16,4%) encontram-se na lista de espécies ameaçadas para o estado de São Paulo e/ou são endêmicas do Cerrado, um... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avifauna; Brasil; Cerrado; Conservação; Endemismo; Espécies ameaçadas. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000300019 |
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