RESUMEN
The activity of vertebrates that feed on corpses can modify the chronology of the decomposition process and interfere with postmortem interval estimates. Further, by destroying the soft parts of the cadaver, scattering, burying or causing the disappearance of bones, it can entirely change the crime scene. In this study, we simulated a clandestine cemetery in an area of Cerrado located inside a farm in Brasília, Distrito Federal. Three domestic pigs of the size of a human of about 60 kg were placed on the ground in different periods of 2010 and 2011. We recorded four species of birds and one of mammal eating the carcasses: 1) Cathartidae: Coragyps atratus (Bechstein, 1973), Cathartes aura (Linnaeus, 1758), Sarcoramphus papa (Linnaeus, 1758); 2) Falconidae: Caracara plancus (Miller, 1777); and 3) Felidae: Leopardus pardalis (Lund, 1840). The behavior of these animals interfered in the decomposition process and resulted in the dispersion and loss of bony parts.
RESUMEN
The activity of vertebrates that feed on corpses can modify the chronology of the decomposition process and interfere with postmortem interval estimates. Further, by destroying the soft parts of the cadaver, scattering, burying or causing the disappearance of bones, it can entirely change the crime scene. In this study, we simulated a clandestine cemetery in an area of Cerrado located inside a farm in Brasília, Distrito Federal. Three domestic pigs of the size of a human of about 60 kg were placed on the ground in different periods of 2010 and 2011. We recorded four species of birds and one of mammal eating the carcasses: 1) Cathartidae: Coragyps atratus (Bechstein, 1973), Cathartes aura (Linnaeus, 1758), Sarcoramphus papa (Linnaeus, 1758); 2) Falconidae: Caracara plancus (Miller, 1777); and 3) Felidae: Leopardus pardalis (Lund, 1840). The behavior of these animals interfered in the decomposition process and resulted in the dispersion and loss of bony parts.
RESUMEN
The activity of vertebrates that feed on corpses can modify the chronology of the decomposition process and interfere with postmortem interval estimates. Further, by destroying the soft parts of the cadaver, scattering, burying or causing the disappearance of bones, it can entirely change the crime scene. In this study, we simulated a clandestine cemetery in an area of Cerrado located inside a farm in Brasília, Distrito Federal. Three domestic pigs of the size of a human of about 60 kg were placed on the ground in different periods of 2010 and 2011. We recorded four species of birds and one of mammal eating the carcasses: 1) Cathartidae: Coragyps atratus (Bechstein, 1973), Cathartes aura (Linnaeus, 1758), Sarcoramphus papa (Linnaeus, 1758); 2) Falconidae: Caracara plancus (Miller, 1777); and 3) Felidae: Leopardus pardalis (Lund, 1840). The behavior of these animals interfered in the decomposition process and resulted in the dispersion and loss of bony parts.
RESUMEN
Morphology and duration of the post-embryonary development of Chrysomya megacephala (Diptera: Calliphoridae) in laboratory conditions. The morphology and developmental time of the post-embryonic stage of Chrysomya megacephala (Fabricius) reared in laboratory on a beef diet, is described and compared to those of other blow-flies species. The parameters analyzed were the duration of the larval stages and the morphology. Larvae were fixed and preserved at 2 hours intervals, from larval eclosion until the 50th hour of life, in order to determine the duration of each stage. The total period of larval development in C. megacephala was 98 hours and their mean length was 15.51 mm. This species presents a necrobiontophagous behavior and has sanitary and medico-legal importance, being used for estimating postmortem interval in criminal investigations.
A morfologia e o tempo de desenvolvimento pós-embrionário de Chrysomya megacephala (Fabricius) criada em condições de laboratório e em dieta de carne bovina, foi descrita e comparada ao de outras espécies. Os parâmetros analisados foram à duração dos instares larvais e a morfologia. Para isso as larvas foram fixadas e preservadas em intervalos de tempo de 2 horas, desde a eclosão das larvas até a 50ª hora, a fim de se determinar o tempo de desenvolvimento de cada estágio. O tempo total de desenvolvimento larval para C. megacephala foi de 98 horas, com média de comprimento 15,51 mm. Essa espécie tem comportamento necrobiontófago e de importância sanitária e médico-legal, usada na estimativa do intervalo post-mortem em investigação criminal.
RESUMEN
The genus Barbiellinia Bezzi, 1922, with five species, is endemic from Brazil. Here we described a new species Barbiellinia illaetabilis sp. nov. based on 26 specimens (25 males and 1 female) from the State of Rio de Janeiro, Brazil.
O gênero Barbiellinia Bezzi, 1922 possui cinco espécies endêmicas do Brasil. Neste trabalho descrevemos uma nova espécie Barbiellinia illaetabilis sp. nov. com base em 26 espécimes (25 machos e 1 fêmea) do estado do Rio de Janeiro, Brasil.
RESUMEN
Morphology and duration of the post-embryonary development of Chrysomya megacephala (Diptera: Calliphoridae) in laboratory conditions. The morphology and developmental time of the post-embryonic stage of Chrysomya megacephala (Fabricius) reared in laboratory on a beef diet, is described and compared to those of other blow-flies species. The parameters analyzed were the duration of the larval stages and the morphology. Larvae were fixed and preserved at 2 hours intervals, from larval eclosion until the 50th hour of life, in order to determine the duration of each stage. The total period of larval development in C. megacephala was 98 hours and their mean length was 15.51 mm. This species presents a necrobiontophagous behavior and has sanitary and medico-legal importance, being used for estimating postmortem interval in criminal investigations.
A morfologia e o tempo de desenvolvimento pós-embrionário de Chrysomya megacephala (Fabricius) criada em condições de laboratório e em dieta de carne bovina, foi descrita e comparada ao de outras espécies. Os parâmetros analisados foram à duração dos instares larvais e a morfologia. Para isso as larvas foram fixadas e preservadas em intervalos de tempo de 2 horas, desde a eclosão das larvas até a 50ª hora, a fim de se determinar o tempo de desenvolvimento de cada estágio. O tempo total de desenvolvimento larval para C. megacephala foi de 98 horas, com média de comprimento 15,51 mm. Essa espécie tem comportamento necrobiontófago e de importância sanitária e médico-legal, usada na estimativa do intervalo post-mortem em investigação criminal.
RESUMEN
The genus Barbiellinia Bezzi, 1922, with five species, is endemic from Brazil. Here we described a new species Barbiellinia illaetabilis sp. nov. based on 26 specimens (25 males and 1 female) from the State of Rio de Janeiro, Brazil.
O gênero Barbiellinia Bezzi, 1922 possui cinco espécies endêmicas do Brasil. Neste trabalho descrevemos uma nova espécie Barbiellinia illaetabilis sp. nov. com base em 26 espécimes (25 machos e 1 fêmea) do estado do Rio de Janeiro, Brasil.
RESUMEN
While governmental agencies have controlled the main domiciliated vectors of Chagas disease in some regions of the country, the permanent searching of the so called secondary vectors is very important. They are attracted by light and frequently invade and colonize human dwellings. As future candidates of epidemiological importance, Triatoma jurbergi,species recently described, was found in cracks of erosive rocky hills with Psitacidae nests, sucking blood to rodents and parrots, attacking gold washers in the high and steep banks the river of the Garças in the state of Mato Grosso. We have analyzed the digestive content of 164 specimens and coulddemonstrate its alimentary eclecticism; also, it was proven that had participated of the diet the following sources: rodent 29%; bird 13%; opossum 10%; dog 10% and lizard 4%. We found natural infection with Trypanosoma cruzi- like in 27 specimens (15.5%). Triatoma vandae, another recently described species, was found in human dwellings in the state of Mato Grosso, attracted by light and its habits are still unknown. The analysis of the digestive content through the technique of precipitine of 193 specimens showed alimentary eclecticism and that several sources have participated of the diet: rodent 20.7%; opossum 12%; bird 9%; pig 6%; armadillo 6%; dog 4%, and lizard 3%. Natural infection with T. cruzi- like was found in 31 specimens (1
RESUMEN
While governmental agencies have controlled the main domiciliated vectors of Chagas disease in some regions of the country, the permanent searching of the so called secondary vectors is very important. They are attracted by light and frequently invade and colonize human dwellings. As future candidates of epidemiological importance, Triatoma jurbergi,species recently described, was found in cracks of erosive rocky hills with Psitacidae nests, sucking blood to rodents and parrots, attacking gold washers in the high and steep banks the river of the Garças in the state of Mato Grosso. We have analyzed the digestive content of 164 specimens and coulddemonstrate its alimentary eclecticism; also, it was proven that had participated of the diet the following sources: rodent 29%; bird 13%; opossum 10%; dog 10% and lizard 4%. We found natural infection with Trypanosoma cruzi- like in 27 specimens (15.5%). Triatoma vandae, another recently described species, was found in human dwellings in the state of Mato Grosso, attracted by light and its habits are still unknown. The analysis of the digestive content through the technique of precipitine of 193 specimens showed alimentary eclecticism and that several sources have participated of the diet: rodent 20.7%; opossum 12%; bird 9%; pig 6%; armadillo 6%; dog 4%, and lizard 3%. Natural infection with T. cruzi- like was found in 31 specimens (1