ABSTRACT
Scarabaeinae (Coleoptera: Scarabaeidae), comprises the beetles popularly called dung beetle, which are important group of animal detritivorous and biomarkers of environmental impacts on ecosystems. Pampa Biome areas are natural ecosystems with high diversity of plant and animal species, but are however, little known compared to other biomes of Brazil. Data on escarabeinofauna the Pampa Biome is scarce. Therefore, the aim of this study was to inventorize the fauna of these beetles in areas located in the far south of the Rio Grande do Sul, as well as learning their habits and eating behaviors. The sampling areas were located in the cities of Herval and Arroio Grande. 216 traps baited pitfall trap type with human dung and pig and beef decaying were placed distributed in six areas. They recorded 2,243 individuals, organized into six tribes, 13 genera and 35 species. The species were classified as coprophagous, general and scavenger. Greater number of subjects were caught in traps baited with human and pig manure than in rotting meat. For the first time Trichillum morelli Verdú & Galante, 1997 was found in Brazil and Canthidium taurinum Harold, 1867 is a new record for the state.(AU)
Scarabaeinae (Coleoptera: Scarabaeidae), compreende compreende os besouros popularmente chamados de rola-bosta, que constituem importante grupo de animais detritívoros e bioindicadores de impactos ambientais nos ecossistemas. Áreas do Bioma Pampa são ecossistemas naturais com alta diversidade de espécies vegetais e animais, no entanto, pouco conhecidas em comparação com outros biomas do Brasil. Dados sobre a escarabeinofauna do Bioma Pampa é escassa. Portanto, os objetivos deste trabalho foram inventariar a fauna destes besouros em áreas localizadas no extremo-sul do Rio Grande do Sul, bem como, conhecer seus hábitos e comportamentos alimentares. As áreas de amostragem se localizaram nos municípios de Herval e Arroio Grande. Foram dispostas 216 armadilhas do tipo pitfall trap iscadas com esterco humano/suíno e carne bovina em decomposição, distribuídas em seis áreas. Registraram-se 2.243 indivíduos, organizados em 6 tribos, 13 gêneros e 35 espécies. As espécies foram classificadas em coprófagas, generalistas e necrófagas. Foi capturado um maior número de indivíduos em armadilhas iscadas com esterco suíno e humano do que em carne apodrecida. Pela primeira vez Trichillum morelli Verdú & Galante, 1997 foi encontrada no Brasil e Canthidium taurinum Harold, 1867 é um novo registro para o estado.(AU)
Subject(s)
Animals , Coleoptera , Animal Population Groups , EcosystemABSTRACT
Scarabaeinae (Coleoptera: Scarabaeidae), comprises the beetles popularly called dung beetle, which are important group of animal detritivorous and biomarkers of environmental impacts on ecosystems. Pampa Biome areas are natural ecosystems with high diversity of plant and animal species, but are however, little known compared to other biomes of Brazil. Data on escarabeinofauna the Pampa Biome is scarce. Therefore, the aim of this study was to inventorize the fauna of these beetles in areas located in the far south of the Rio Grande do Sul, as well as learning their habits and eating behaviors. The sampling areas were located in the cities of Herval and Arroio Grande. 216 traps baited pitfall trap type with human dung and pig and beef decaying were placed distributed in six areas. They recorded 2,243 individuals, organized into six tribes, 13 genera and 35 species. The species were classified as coprophagous, general and scavenger. Greater number of subjects were caught in traps baited with human and pig manure than in rotting meat. For the first time Trichillum morelli Verdú & Galante, 1997 was found in Brazil and Canthidium taurinum Harold, 1867 is a new record for the state.
Scarabaeinae (Coleoptera: Scarabaeidae), compreende compreende os besouros popularmente chamados de rola-bosta, que constituem importante grupo de animais detritívoros e bioindicadores de impactos ambientais nos ecossistemas. Áreas do Bioma Pampa são ecossistemas naturais com alta diversidade de espécies vegetais e animais, no entanto, pouco conhecidas em comparação com outros biomas do Brasil. Dados sobre a escarabeinofauna do Bioma Pampa é escassa. Portanto, os objetivos deste trabalho foram inventariar a fauna destes besouros em áreas localizadas no extremo-sul do Rio Grande do Sul, bem como, conhecer seus hábitos e comportamentos alimentares. As áreas de amostragem se localizaram nos municípios de Herval e Arroio Grande. Foram dispostas 216 armadilhas do tipo pitfall trap iscadas com esterco humano/suíno e carne bovina em decomposição, distribuídas em seis áreas. Registraram-se 2.243 indivíduos, organizados em 6 tribos, 13 gêneros e 35 espécies. As espécies foram classificadas em coprófagas, generalistas e necrófagas. Foi capturado um maior número de indivíduos em armadilhas iscadas com esterco suíno e humano do que em carne apodrecida. Pela primeira vez Trichillum morelli Verdú & Galante, 1997 foi encontrada no Brasil e Canthidium taurinum Harold, 1867 é um novo registro para o estado.
Subject(s)
Animals , Coleoptera , Animal Population Groups , EcosystemABSTRACT
Carabid beetle assemblages in three environments in the Araucaria humid forest of southern Brazil. Carabidae is composed mainly by ground-dwelling predator beetles. It is the fourth most diverse group within Coleoptera, but its diversity in the Neotropical region is understudied. Here we describe and analyze the diversity of carabid beetles in a region of subtropical rain forest dominated by Araucaria angustifolia with different landscapes. Three areas were chosen in an environmental integrity gradient: primary forests, secondary forests and old Pinus plantations. Pitfall traps were taken monthly, in a total of 14 samples per area. 1733 adult carabid beetles, belonging to 18 species, were sampled. There were differences in richness and abundance between the sampled areas. The total scores followed the same tendency: primary forests (14 species/747 individuals), secondary forests (13/631) and Pinus forests (10/355). An analysis of similarity shows differences in species composition, for both areas and seasons. Galerita lacordarei was the most abundant species for all samples and seasons. Carabid species show similar responses in accordance with habitat heterogeneity and disturbance. The abundance of Galerita lacordarei was influenced by temperature, for all sampled sites. Environmental changes affect the carabid assemblages and decrease diversity, possibly interfering in local dynamics. Seasonality patterns seem to indicate an increase in individual movement during summer, probably in search of resources. It is suggested that microhabitat patchiness is probably an important factor affecting carabid beetle diversity at small spatial scales.