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| Godoy-Güinao,Javier; Díaz,Iván A.; Llanos-Pineda,Manuel; Alò,Dominique. |
| ABSTRACT People’s perception on birds of prey is heavily influenced by its intrinsic value, utility, myths and superstitions. In particular, negative perceptions may encourage poaching and persecution of these birds, affecting their conservation status. One nocturnal raptor species widely distributed across the world is the Barn Owl (Tyto alba, Tytonidae). In Chile, this species has been recorded and studied exclusively in rural and sub-urban areas. However, in the city of Valdivia Barn owls exist within the city boundaries. In this study we documented the feeding habits of Barn owls nesting in urban settings of Valdivia, and we analyze the opinions of local neighbors toward the owls. To characterize the diet of owls, we collected all pellets... |
| Tipo: Journal article |
Palavras-chave: Environmental education; Oligoryzomys longicaudatus; Raptors; Urban ecology; Urban wildlife. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382017000100009 |
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| Banhos,Aureo; Hrbek,Tomas; Gravena,Waleska; Sanaiotti,Tânia; Farias,Izeni P.. |
| We report the characterization and optimization of 45 heterologous microsatellite loci, and the development of a new set of molecular sex markers for the conservation and management of the Neotropical harpy eagle (Harpia harpyja L. 1758). Of the 45 microsatellites tested, 24 were polymorphic, six monomorphic, 10 uncharacterizable due to multiple bands and five did not amplify. The observed gene diversity of the analyzed sample of H. harpyja was low and similar to that of other threatened Falconiformes. While a high proportion of the microsatellite markers were highly variable, individuals of H. harpyja could be differentiated by a joint analysis of just three (p = 2.79 x 10-4) or four markers (p = 2.89 x 10-5). Paternity could be rejected with 95.23% and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation genetics; Harpia harpyja; Microsatellites; Raptors; Sex markers. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100025 |
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| Andery,D de A; Ferreira Junior,FC; Araújo,AV de; Vilela,DA da R; Marques,MVR; Marin,SY; Horta,RS; Ortiz,MC; Resende,JS de; Martins,NR da S. |
| Falconiformes (n=82), Strigiformes (n=84) and Cathartiformes (n=14) at a triage center (CETAS-Belo Horizonte, IBAMA, Brazil) were examined between 2008 and 2010 . No bird was reactive at hemagglutination-inhibition (HI) for antibodies against Mycoplasma gallisepticum (Mg). Two Caracara plancus (2/68) had HI titers (16-32) against Newcastle disease virus. No Chlamydophila psittaci DNA was detected in the liver (PCR; n=95). Blood smears (Giemsa; n=89) and spleen fragments (PCR; n=82) were 13.5% and 8.5% positive, respectively, for Haemoproteus only. Necropsy of Cathartiformes (n=10), Falconiformes (n=42) and Strigiformes (n=57) showed that trauma injuries were the main cause (63.3%) of admission and death, being fractures (38.5%) of the thoracic limbs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cathartiformes health; Falcon; Falconiformes health; Hawk; Owl; Raptors; Strigiformes health; Vulture. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300012 |
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| RAGUSA-NETTO,J.. |
| Bird mixed flocks including Cypsnagra hirundinacea and Neothraupis fasciata as species with sentinels were studied in "campo-cerrado" in order to investigate the possible relationship between alertness and the mixed flock leadership. This study was conducted from March to September 1996 and mixed flocks were observed on average for 2:30h. The time with sentinels were recorded for C. hirundinacea and N. fasciata. The sentinels of Cypsnagra hirundinacea performed most of the vigilance (time with sentinel was on average 42 ± 17%, 41 ± 17% of which by C. hirundinacea, whereas only 1.2 % by N. fasciata) and gave all the alarm calls recorded (54% of the encounters with raptors stimulated alarm calls). A relationship was verified between time with sentinel and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mixed flock; Sentinel; Thraupinae; Raptors; Nuclear species. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300011 |
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| RAGUSA-NETTO,J.. |
| I studied the existence of sentinels in Saltator atricollis in a 'campo-cerrado' (Brazilian savanna) during the breeding seasons of 1994-95 and 1995-96. Groups of this species consisted of two to seven birds (N = 25). Sentinels were present (mean ± sd) 62% ± 9% of the time, and most sentinel bouts lasted from less than one to six minutes (although in some occasions for more than 30 min.). Overlap of two or more sentinels occurred on average only 3.2% of the time with birds on guard. Sentinels commonly gave contact calls in the beginning and/or at the end of a sentinel bout. The group size had no effect on time with sentinels. However the encounter rate between raptors and groups significantly influenced the time guarded. The results of this study suggests... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Emberizidae; Brazilian savanna; Raptors; Alertness; Sentinels. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200015 |
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