Resumo
The objective was to evaluate the presence of meso-fauna soil in constructed soil after open pit coal mining in the Lauro Müller region, SC, Brazil. An experimental area of the Mina do Apertado and two reference areas (naturalized field and native forest) were used. The meso-fauna was collected using a 17 cm diameter metal cylinder, at 5 cm depth, and the extraction was performed by using the modified Berlese method, followed by the identification of organisms. The soil fauna was assessed by individual density and richness of groups and submitted to variance analysis and multivariate analysis of the data by correspondence analysis. A total of 19 taxa were found, and Acari, Collembola and Formicidae showed higher densities. The correspondence analysis showed a clear separation of anthropogenic sites (Mina do Apertado and naturalized field) from the reference area (native forest). Mina do Apertado recovery model groups showed similar reference to the native forest, satisfying the ecosystem services provided by them, promoting a suitable environment for groups of mesofaunal soil.
O objetivo foi avaliar a presença da mesofauna edáfica em solos construídos após a mineração de carvão a céu aberto na região de Lauro Müller, SC, Brasil. Utilizou-se a área experimental da Mina do Apertado e duas áreas de referência (campo naturalizado e mata nativa). A fauna do solo foi coletada utilizando-se de um cilindro metálico de 17 cm de diâmetro, na profundidade de 5 cm, e a extração foi realizada pelo método de Berlese modificado, seguido da identificação dos organismos. A mesofauna foi avaliada pela densidade de indivíduos e riqueza de grupos submetidos à análise de variância e análise multivariada dos dados através da análise de correspondência. Ao total foram encontrados 19 táxons, sendo que Acari, Collembola e Formicidae apresentaram as maiores densidades. A análise de correspondência evidenciou clara separação dos locais antropizados (Mina do Apertado e campo naturalizado) da área de referência (mata nativa). Os modelos de recuperação da Mina do Apertado apresentaram grupos semelhantes à referência mata nativa, satisfazendo os serviços do ecossistema prestados por eles, promovendo um ambiente adequado para os grupos da mesofauna edáfica.
Assuntos
Análise do Solo , Biomarcadores Ambientais , Mineração , Química do SoloResumo
The objective was to evaluate the presence of meso-fauna soil in constructed soil after open pit coal mining in the Lauro Müller region, SC, Brazil. An experimental area of the Mina do Apertado and two reference areas (naturalized field and native forest) were used. The meso-fauna was collected using a 17 cm diameter metal cylinder, at 5 cm depth, and the extraction was performed by using the modified Berlese method, followed by the identification of organisms. The soil fauna was assessed by individual density and richness of groups and submitted to variance analysis and multivariate analysis of the data by correspondence analysis. A total of 19 taxa were found, and Acari, Collembola and Formicidae showed higher densities. The correspondence analysis showed a clear separation of anthropogenic sites (Mina do Apertado and naturalized field) from the reference area (native forest). Mina do Apertado recovery model groups showed similar reference to the native forest, satisfying the ecosystem services provided by them, promoting a suitable environment for groups of mesofaunal soil.(AU)
O objetivo foi avaliar a presença da mesofauna edáfica em solos construídos após a mineração de carvão a céu aberto na região de Lauro Müller, SC, Brasil. Utilizou-se a área experimental da Mina do Apertado e duas áreas de referência (campo naturalizado e mata nativa). A fauna do solo foi coletada utilizando-se de um cilindro metálico de 17 cm de diâmetro, na profundidade de 5 cm, e a extração foi realizada pelo método de Berlese modificado, seguido da identificação dos organismos. A mesofauna foi avaliada pela densidade de indivíduos e riqueza de grupos submetidos à análise de variância e análise multivariada dos dados através da análise de correspondência. Ao total foram encontrados 19 táxons, sendo que Acari, Collembola e Formicidae apresentaram as maiores densidades. A análise de correspondência evidenciou clara separação dos locais antropizados (Mina do Apertado e campo naturalizado) da área de referência (mata nativa). Os modelos de recuperação da Mina do Apertado apresentaram grupos semelhantes à referência mata nativa, satisfazendo os serviços do ecossistema prestados por eles, promovendo um ambiente adequado para os grupos da mesofauna edáfica.(AU)
Assuntos
Biomarcadores Ambientais , Análise do Solo , Química do Solo , MineraçãoResumo
A new species of Tyrannoseira Bellini & Zeppelini, 2011 (Entomobryidae) is described and illustrated. Specimens of T. diabolica sp. nov. were collected in Barreira do Inferno, state of Rio Grande do Norte, Brazil. This is the fourth described species in the genus. All males of Tyrannoseira have the femora of the first pair of legs enlarged and slender tibiotarsi, both bearing several spine-like setae. Probably the closest species to T. diabolica sp. nov. is T. sex Bellini & Zeppelini, 2011. They share many similarities in their color pattern and dorsal chaetotaxy.
Resumo
A new species of Tyrannoseira Bellini & Zeppelini, 2011 (Entomobryidae) is described and illustrated. Specimens of T. diabolica sp. nov. were collected in Barreira do Inferno, state of Rio Grande do Norte, Brazil. This is the fourth described species in the genus. All males of Tyrannoseira have the femora of the first pair of legs enlarged and slender tibiotarsi, both bearing several spine-like setae. Probably the closest species to T. diabolica sp. nov. is T. sex Bellini & Zeppelini, 2011. They share many similarities in their color pattern and dorsal chaetotaxy.
Resumo
A new species of Tyrannoseira Bellini & Zeppelini, 2011 (Entomobryidae) is described and illustrated. Specimens of T. diabolica sp. nov. were collected in Barreira do Inferno, state of Rio Grande do Norte, Brazil. This is the fourth described species in the genus. All males of Tyrannoseira have the femora of the first pair of legs enlarged and slender tibiotarsi, both bearing several spine-like setae. Probably the closest species to T. diabolica sp. nov. is T. sex Bellini & Zeppelini, 2011. They share many similarities in their color pattern and dorsal chaetotaxy.
Resumo
Campylothorax Schött, 1893 is a genus of Paronellidae known only from the Neotropical and Ethiopian zoogeographic provinces. Herein a new species of this genus is described and illustrated. Campylothorax mitrai sp. nov. was found in remains of Atlantic Rainforest at Rio Largo municipality, state of Alagoas, Brazil. It is the ninth described species of Campylothorax and the third recorded from Brazil. Campylothorax mitrai sp. nov. can be distinguished from other species of the genus by its peculiar dark blue color pattern associated to a unique set of setae in the labial triangle, where there is a large distinct seta 'E'. This condition is unique among Campylothorax species. Campylothorax mitrai sp. nov. is the first record of Collembola from Alagoas.
Resumo
Campylothorax Schött, 1893 is a genus of Paronellidae known only from the Neotropical and Ethiopian zoogeographic provinces. Herein a new species of this genus is described and illustrated. Campylothorax mitrai sp. nov. was found in remains of Atlantic Rainforest at Rio Largo municipality, state of Alagoas, Brazil. It is the ninth described species of Campylothorax and the third recorded from Brazil. Campylothorax mitrai sp. nov. can be distinguished from other species of the genus by its peculiar dark blue color pattern associated to a unique set of setae in the labial triangle, where there is a large distinct seta 'E'. This condition is unique among Campylothorax species. Campylothorax mitrai sp. nov. is the first record of Collembola from Alagoas.
Resumo
Campylothorax Schött, 1893 is a genus of Paronellidae known only from the Neotropical and Ethiopian zoogeographic provinces. Herein a new species of this genus is described and illustrated. Campylothorax mitrai sp. nov. was found in remains of Atlantic Rainforest at Rio Largo municipality, state of Alagoas, Brazil. It is the ninth described species of Campylothorax and the third recorded from Brazil. Campylothorax mitrai sp. nov. can be distinguished from other species of the genus by its peculiar dark blue color pattern associated to a unique set of setae in the labial triangle, where there is a large distinct seta 'E'. This condition is unique among Campylothorax species. Campylothorax mitrai sp. nov. is the first record of Collembola from Alagoas.
Resumo
A qualidade do solo não deve estar limitada somente a produtividade, mas também envolver a qualidade ambiental, a saúde do homem, dos animais em associação com qualidade do alimento. A fauna edáfica vem sendo objeto de estudos que buscam entender os efeitos das ações antrópicas sobre o ambiente e usada como bioindicadores da condição atual que determinado ambiente se encontra. O objetivo da pesquisa foi analisar a dinâmica temporal da macro e mesofauna edáfica em áreas de Caatinga sob pastejo caprino com diferentes taxas de lotação. O experimento foi realizado numa área de Caatinga de 9,6 ha subdividida em 3 subáreas de 3,2 ha com diferentes taxas de lotação (A1=10 caprinos, A2= 5 caprinos e A3= sem caprinos), na Estação Experimental de São João do Cariri PB, pertencente ao Centro de Ciências Agrárias da Universidade Federal da Paraíba,. Foram utilizadas armadilhas Provid para capturar a macrofauna; anéis de metais para coleta de solo + serapilheira e extrator Berlese Tullgren para extração da mesofauna. Dentre a macrofauna, as formigas foram os indivíduos mais abundantes nos três ambientes e para a mesofauna, os ácaros. Não houve diferença de riqueza de ordens entre as áreas. Contudo, os maiores índices de Shannon e Pielou foram encontrados na Área 3 e os maiores índices de Simpson, registrados na Área 1. O período noturno proporcionou maior diversidade e Equabilidade enquanto o diurno, maior dominância. Aranhas, centopeias e escorpiões ocorreram em maior proporção no ambiente A3 seguido de A2 e A1. A dinâmica de ácaros e colêmbolos foi mais equilibrada na Área 3, seguida da Área 2 e Área 1. A heterogeneidade de cada ambiente e a precipitação pluvial são preditores da alta variação dos dados. A inclusão de caprinos em áreas de caatinga altera a diversidade da macro e mesofauna do solo.
Soil quality should not be limited to the productivity of the same, but should also involve environmental quality, human and animal health in association with food quality. The soil fauna has been the subject of studies that seek to understand the effects of human actions on the environment and used as bio-indicators of the current condition that certain environment. The objective of the research was to analyze the temporal dynamics of edaphic macrofauna and mesofauna in Caatinga areas under goat grazing with different stocking rates. The experiment was conducted in a Caatinga area of 9,6 ha divided into three subarea of 3,2 ha there with different stocking rates (A1 = 10 goats, A2 = 5 goats and A3 = no goats), in the Estação Experimental de São João do Cariri- PB, belonging to the Federal University of Paraiba, Agricultural Science Center. Provid traps were used to capture the macrofauna; metal rings for soil + litter collect and extractor Berlese Tullgren for mesofauna extraction. Among the macrofauna, ants were the most abundant individuals in the three environments and the mites for mesofauna. There was no difference in orders wealth between areas. However, the higher Shannon and Pielou index were found in Area 3 and the highest Simpson index, registered in Area 1. Nighttime proposed higher diversity and Equitability while the daytime, higher dominance. Spiders, centipedes and scorpions occurred in greater proportion in the A3 environment then by A2 and A1. The dynamics of mites and springtails was more balanced in Area 3, then Area 2 and Area 1. The heterogeneity of each environment and rainfall reflected in the high variation in the data. In general, the soil fauna tends to emerge after rain events and how mouch best distributed these events, there is a predisposition to a larger in the dynamics balance of soil fauna.