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Search Results: 1 - 10 of 51 matches for " Diplopoda "
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Chromosomal characterization of Pseudonannolene strinatii (Spirostreptida, Pseudonannolenidae)
Campos, Kleber Agari;Fontanetti, Carmem S.;
Iheringia. Série Zoologia , 2004, DOI: 10.1590/S0073-47212004000100009
Abstract: the chromosomes of the cave millipede pseudonannolene strinatii mauriès, 1974 were investigated. the diploid chromosome number was found to be 2n=16, xx/xy; the c-banding technique revealed a large amount of heterochromatin while the silver staining technique (ag-nor) evidenced the presence of heteromorphism of the nors in some cells.
A new species of Urostreptus (Diplopoda, Spirostreptidae): description and chromossome number
Pierozzi, Pedro H. B.;Fontanetti, Carmem S.;
Iheringia. Série Zoologia , 2006, DOI: 10.1590/S0073-47212006000200011
Abstract: this work presents the description and chromosome number of urostreptus atrobrunneus sp. nov. the genus until now had not been registered yet in the s?o paulo state, brazil. the meiotic analysis showed that the species presents 2n=24, xy. the c-banding revealed large blocks of constitutive heterochromatin and two heteromorphic chromosomal pairs, one of them corresponding to the sexual pair.
Karyotype of a termitophilic species of Diplopoda (Polydesmida, Chelodesmidae)
Fontanetti, Carmem Silvia;
Brazilian Journal of Genetics , 1996, DOI: 10.1590/S0100-84551996000400010
Abstract: this report describes the karyotype of a brazilian diplopod species (arthropoda), sandalodesmus gasparae (schubart, acta zool. lilloana inst. "miguel lillo" 2: 321-440,1944), collected from a termite mound cornitermes bequaerti. this species has 2n = 12. the sex pair could not be distinguished.
Description and chromosome number of a species of Pseudonannolene Silvestri (Arthropoda, Diplopoda, Pseudonannolenidae)
Fontanetti, Carmem S.;
Revista Brasileira de Zoologia , 2000, DOI: 10.1590/S0101-81752000000100014
Abstract: pseudonannolene mesai sp.n. from biritiba mirim, state of s?o paulo, brazil, is described and the chromosome number (2n=16) is reported. it was impossible to observe the chromosomal sex determination mechanism.
Vertical and time distribution of Diplopoda (Arthropoda: Myriapoda) in a monodominant forest in Pantanal of Mato Grosso, Brazil
Battirola, Leandro D.;Marques, Marinêz I.;Rosado-Neto, Germano H.;Pinheiro, Tamaris G.;Pinho, Nelsina G. C.;
Zoologia (Curitiba) , 2009, DOI: 10.1590/S1984-46702009005000008
Abstract: in this study different sampling techniques for diplopoda in soil, tree trunks and canopies were applied in an integrated way in the northern region of the pantanal of mato grosso, brazil. this was done in order to assess the relationship within the fauna in each forest strata, as well as its richness and temporal distribution. in all these habitats there were a total of 1,354 diplopods, distributed in four taxonomic orders, with polyxenida being predominant over polydesmida, spirostreptida and spirobolida. the largest representation was found on the trunks of the vochysia divergens (721 ind.), intercepted by tree photoecletors, whereas in the canopies sampling reached only 65 specimens. in the edaphic stratum 568 diplopods were captured, most with the use of the winkler extractor, followed by pitfall traps and soil photoecletors. in spite of being an important group in these environments, both in terms of richness and diversity, this was less than has been observed in other neotropical areas. however, due to seasonal changes in the pantanal the existence of a relationship between the soil and the tree fauna was found as well as different survival strategies observed during the flood period. regarding vertical distribution, the greatest richness and variety of taxonomic groups was found in the forest's edaphic environment demonstrating its association mainly with this forest stratum.
Vertical and time distribution of Diplopoda (Arthropoda: Myriapoda) in a monodominant forest in Pantanal of Mato Grosso, Brazil
Leandro D. Battirola,Marinêz I. Marques,Germano H. Rosado-Neto,Tamaris G. Pinheiro
Zoologia (Curitiba) , 2009,
Abstract: In this study different sampling techniques for Diplopoda in soil, tree trunks and canopies were applied in an integrated way in the northern region of the Pantanal of Mato Grosso, Brazil. This was done in order to assess the relationship within the fauna in each forest strata, as well as its richness and temporal distribution. In all these habitats there were a total of 1,354 diplopods, distributed in four taxonomic orders, with Polyxenida being predominant over Polydesmida, Spirostreptida and Spirobolida. The largest representation was found on the trunks of the Vochysia divergens (721 ind.), intercepted by tree photoecletors, whereas in the canopies sampling reached only 65 specimens. In the edaphic stratum 568 diplopods were captured, most with the use of the Winkler extractor, followed by pitfall traps and soil photoecletors. In spite of being an important group in these environments, both in terms of richness and diversity, this was less than has been observed in other Neotropical areas. However, due to seasonal changes in the Pantanal the existence of a relationship between the soil and the tree fauna was found as well as different survival strategies observed during the flood period. Regarding vertical distribution, the greatest richness and variety of taxonomic groups was found in the forest's edaphic environment demonstrating its association mainly with this forest stratum.
Trichomycetes (Zygomycota) in the digestive tract of arthropods in Amazonas, Brazil
Alencar, Yamile B;Ríos-Velásquez, Claudia M;Lichtwardt, Robert W;Hamada, Neusa;
Memórias do Instituto Oswaldo Cruz , 2003, DOI: 10.1590/S0074-02762003000600016
Abstract: eight species of harpellales and three species of eccrinales (zygomycota: trichomycetes) were found associated with the digestive tract of arthropods from terrestrial and aquatic environments in the central amazon region of brazil. new species of harpellales include: harpella amazonica, smittium brasiliense, genistellospora tropicalis in simuliidae larvae and stachylina paucispora in chironomidae larvae. axenic cultures of s. brasiliense were obtained. probable new species of enterobryus (eccrinales), harpella, and stachylina (harpellales) are described but not named. also reported are the previously known species of eccrinales, passalomyces compressus and leidyomyces attenuatus in adult coleoptera (passalidae), and smittium culisetae and smittium aciculare (harpellales) in culicidae and simuliidae larvae, respectively. comments on the distribution of some of these fungi and their hosts in the neotropics are provided.
MILLIPEDES OF A FOREST AT S O JOSé FARM, RIO CLARO TO ARARAS, S O PAULO STATE, BRAZIL
Lilian Boccardo,Carlos Henrique Silva Penteado,Joachim Adis
Holos Environment , 2001,
Abstract: Knowledge of terrestrial fauna of residual Brazilian forests is very topical as support to studies on soil dynamics and nature conservation. This holds true for millipedes as an integral part of soil fauna of a forest fragment located at S o José Farm, between Rio Claro and Araras, SP. Brazil. As many as 11 large species of millipedewhich belongs to 3 different orders and families, have been revealed: Helicogonus princeps, Gymnostreptus olivaceus, Gymnostreptus sp., Plusioporus setiger and Urostreptus sp. (Spirostreptida, Spirostreptidae), Rhinocricus padbergi, R. varians (?) and Rhinocricus sp. (Spirobolida, Rhinocricidae), Sandalodesmus gasparae,Leptodesmus dentellus and Leptodesmus sp. (Polydesmida, Chelodesmidae) and Polyxenida gen. sp.. All these millipedes were collected between February and October 1997, under tree trunks and stones, and in litter along a transact of 1,500 meters in the forest. The bulk of the species were taken in March and April. The nearly complete absence of millipedes in the following months is apparently due to the dry season, when the millipedes "hibernate" until the beginning of spring. Millipedes perform important roles in the decomposition of organic matter, stimulating microbial activity andinfluencing the energy flow and nutrient cycle in the soil.
Trichomycetes (Zygomycota) in the digestive tract of arthropods in Amazonas, Brazil
Alencar Yamile B,Ríos-Velásquez Claudia M,Lichtwardt Robert W,Hamada Neusa
Memórias do Instituto Oswaldo Cruz , 2003,
Abstract: Eight species of Harpellales and three species of Eccrinales (Zygomycota: Trichomycetes) were found associated with the digestive tract of arthropods from terrestrial and aquatic environments in the central Amazon region of Brazil. New species of Harpellales include: Harpella amazonica, Smittium brasiliense, Genistellospora tropicalis in Simuliidae larvae and Stachylina paucispora in Chironomidae larvae. Axenic cultures of S. brasiliense were obtained. Probable new species of Enterobryus (Eccrinales), Harpella, and Stachylina (Harpellales) are described but not named. Also reported are the previously known species of Eccrinales, Passalomyces compressus and Leidyomyces attenuatus in adult Coleoptera (Passalidae), and Smittium culisetae and Smittium aciculare (Harpellales) in Culicidae and Simuliidae larvae, respectively. Comments on the distribution of some of these fungi and their hosts in the Neotropics are provided.
The millipede genus Tasmaniosoma Verhoeff, 1936 (Diplopoda, Polydesmida, Dalodesmidae) from Tasmania, Australia, with descriptions of 18 new species
Robert Mesibov
ZooKeys , 2010, DOI: 10.3897/zookeys.41.420
Abstract: Tasmaniosoma armatum Verhoeff, 1936 is redescribed from topotypical specimens and the following congeners are described from Tasmania: T. alces sp. n., T. aureorivum sp. n., T. australe sp. n., T. barbatulum sp. n., T. bruniense sp. n., T. cacofonix sp. n., T. clarksonorum sp. n., T. compitale sp. n., T. decussatum sp. n., T. fasciculum sp. n., T. fragile sp. n., T. gerdiorivum sp. n., T. hesperium sp. n., T. hickmanorum sp. n., T. laccobium sp. n., T. maria sp. n., T. orientale sp. n. and T. warra sp. n.
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