TY - JOUR T1 - Fauna de coleopteros Scarabaeidae Laparosticti y Trogidae (Coleoptera: Scarabaeoidea) asociados al bosque mesofilo de montana, cafetales bajo sombra y comunidades derivadas en el centro de Veracruz, Mexico JF - Neotropical Entomology Y1 - 2007 A1 - DeLoya, Cuauhtemoc A1 - Parra-Tabla, Victor A1 - Delfin-Gonzalez, Hugo SP - 5 EP - 21 KW - beetle KW - coprophagous KW - necrophagous KW - saprophagous KW - trophic guild AB - Beetles were collected from April 2002 to July 2003 from the following sites in the centre of the state of Veracruz located every 200 m along an altitudinal gradient (1000 – 1400 m asl): three fragments of cloud forest, three shaded coffee plantations, an open canopy coffee plantation, secondary forest, and a pasture. A total of 9,982 specimens were captured, belonging to the families Scarabaeidae and Trogidae, and representing 21 genera and 50 species. The genera Ataenius Harold, Onthophagus Latreille and Aphodius Illiger represented 48% of the species of Scarabaeidae. Species richness was found to decrease with increasing altitude; there were 36 species at 1000 m asl, 27 species between 1200 and 1300 m asl, and 26 species at 1400 m asl. Abundance along the altitudinal gradient follows a pattern of few abundant species and many species with few specimens. Beetle activity is related to precipitation. In the nine communities studied, species richness was observed to increase when precipitation was greater than 100 mm at the beginning of the rainy season. On the landscape scale, there were 44 species during the rainy season, 22 during the windy nortes season, and 24 during the dry season. In terms of trophic guild, 40% of the beetles captured were saprophagous that feed on decomposing organic material from plants and 60% were saprophagous that feed on decomposing organic material from animals (30% necrophagous, 26% coprophagous, 4% telio-necrophagous). VL - 36 ER - TY - JOUR T1 - Dung beetle (Coleoptera: Scarabaeidae) assemblages across a natural forest-cerrado ecotone in Minas Gerais, Brazil JF - Neotropical Entomology Y1 - 2005 A1 - Duraes, Renata A1 - Martins, Waldney P, A1 - Vaz-de-Mello, Fernando Z. SP - 721 EP - 731 KW - Atlantic Forest KW - biodiversity KW - brazil KW - edge effect KW - spatial distribution AB - Variations in assemblage attributes across ecotones provides clear examples on how organisms perceive and respond to environmental changes, even at small scales. Dung beetles (Scarabaeidae) have been used as bioindicators of habitat quality due to their sensitivity to environmental changes. Dung beetles were sampled across a natural forest-cerrado ecotone in Brazil, and associated changes in assemblage structure were examined. Edge effects, here defined as consistent changes in assemblage parameters in relation to the distance to the forest-cerrado border, were also examined. Density of individuals and species were higher in the forest than in the cerrado, but overall richness was similar between habitats after controlling for sample sizes. Species composition differed greatly between habitats, and shared species were consistently more abundant in one or another habitat. Edge effects were not detected on richness nor species composition, and only weak effects were observed on abundance. It is concluded that the effect of the habitat (forest vs. cerrado) has a much stronger effect on the assemblage structure than the presence of the edge: dung beetles responded strongly to change in habitats, but weakly to the proximity of the edge between these habitats. VL - 34 ER - TY - JOUR T1 - Succession of Scarabaeidae on bovine dung in Itumbiara, Goias, Brazil JF - Neotropical Entomology Y1 - 2003 A1 - Marchiori, Carlos H. A1 - Caldas, Elza R. A1 - Almeida, Katia G. S. SP - 173 EP - 176 KW - Arthropoda KW - biocontrol KW - bovine KW - brazil KW - COLEOPTERA AB - The succession of Scarabaeidae in cattle dung deposited in pasture were observed from January to August 2001 in Itumbiara County, State of Goiás, Brazil (18o25’S; 49o13’W). Fresh cattle dung pats were exposed on a pasture area for one, two, three, four, five, six, seven, eight, nine and ten days and then taken individually to the laboratory for screening and identification of the Scarabaeidae therein present. A total of 100 dung pads were exposed in the field from which 3,229 specimens of Scarabaeidae were recovered. The most frequent species found were: Ataenius aequalis Harold and Aphodius lividus Balth. The majority of specimens were collected in cattle dung exposed for one and two days. VL - 32 ER - TY - JOUR T1 - Artropodes associados a massas fecais bovinas no sul do Estado de Goias JF - Neotropical Entomology Y1 - 2001 A1 - Marchiori, Carlos H. A1 - de Oliveira, Andersen T. A1 - Linhares, A. X. SP - 19 EP - 24 AB - A study of the arthropod fauna from bovine dung pats in the State of Goi·s, Brazil, was carried out from January to December, 1998. Twenty samples of bovine dung were taken at random, each month, from eight day old pats, placed in plastic containers and taken to the laboratory. The arthropods were extracted by flotation in water in order to determine the frequency of Coleoptera, Diptera, Hymenoptera and Macrochelidae (Acarina) considered important in the degradation of cattle dung, and in the control of dung flies. Fifty two arthropod species belonging to 10 families were collected: 20 of Coleoptera (three families), 12 of Diptera (three families), 10 of Hymenoptera (three families) and six of Macrochelidae (Acarina). VL - 30 ER - TY - JOUR T1 - Coleoptera associated with undisturbed cow pats in pastures in southeastern Brazil JF - Neotropical Entomology Y1 - 2006 A1 - Mendes, Julio A1 - Linhares, A. X. SP - 715 EP - 723 KW - biological control KW - cattle dung KW - diversity KW - dung beetle AB - Coleoptera associated to undisturbed cattle droppings in pastures present great diversity and abundance. Several species are of primary veterinary importance for they may act as natural enemies of pest insects that breed in this habitat. To survey the diversity and abundance of Coleoptera associated to undisturbed cattle droppings, four undisturbed cattle dung pats naturally dropped in pastures and 5 cm of the soil immediately beneath them were collected almost allweekly from april 1992 to april 1994 in a farm located in the vicinity of São Carlos, State of São Paulo, Southeastern Brazil. Beetles were collected from the pats both using Berlese funnels and by allowing the beetles to emerge for 30 to 40 days. A total of 24,332 specimens belonging to 13 beetle families and at least 66 species were identifi ed. The most abundant and diverse families were Aphodiidae, Staphylinidae and Scarabaeidae. In general, the Coleoptera were more abundant in the warmer and wet period, from October to March, with a few exceptions. The importance of the beetles, both as horn fl y natural enemies and as cattle dung decaying agents, is discussed. VL - 35 ER - TY - JOUR T1 - Acaros das familias Scutacaridae e Pygmephoridae (Acari: Heterostigmata) associados a besouros coprofagos (Coleoptera: Scarabaeidae) no Brasil JF - Neotropical Entomology Y1 - 2001 A1 - Rodrigues, Sergio R. A1 - Marchini, Luis C. A1 - Carbonari, Jairo J. SP - 387 EP - 390 KW - cattle dung KW - ecology KW - pasture KW - phoresy AB - Dung beetles were collected in pasture areas in Piracicaba (State of São Paulo), Aquidauana (State of Mato Grosso do Sul) and Capão do Leão (State of Rio Grande do Sul). In the first two sites, the beetles were collected in pitfall traps, while in the third site they were collected in a light trap. Mites of the families Scutacaridae and Pygmephoridae were commonly found on those beetles. In the family Scutacaridae, the following species were found: Pygmodispus (Pygmodispus) bicornutus Ebermann & Rodrigues, Scutacarus longitarsus (Berlese) and Scutacarus sp. In the family Pygmephoridae, the following genera were found: Elattoma, Bakerdania, Elattosoma, Pediculaster sp. near brasiliensis and Sicilipes. Only female mites were collected. VL - 30 ER -