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Search Results: 1 - 10 of 21 matches for " Buschini "
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Nesting behavior of Trypoxylon (Trypargilum) agamemnom Richards (Hymenoptera: Crabronidae)
Buschini, MLT;Donatti, AJ;
Brazilian Journal of Biology , 2012, DOI: 10.1590/S1519-69842012000200017
Abstract: nesting behaviour is extremely diversified among solitary nesting sphecids. thus, the aim of this study was to describe the nesting behaviour of trypoxylon agamemnon and discuss the advantages of guarding behaviour of males. it was conducted in the parque municipal das araucárias, guarapuava (pr), brazil from october/2003 to july/2007. to describe the behaviour of t. agamemnon and construct its ethogram, daily observations were made, totalling 410:19 hours observation. although the males of t. agamemnon stand guard close to the entrance of the nests, we concluded that this behaviour is not ensuring the protection of nests against parasitoids and that, probably, this behaviour ensures them the paternity, but further studies with microsatellite markers will be necessary to confirm this hypothesis.
Biologic aspects of different species of Pachodynerus (Hymenoptera; Vespidae; Eumeninae)
Buschini, MLT.;Buss, CE.;
Brazilian Journal of Biology , 2010, DOI: 10.1590/S1519-69842010000300020
Abstract: the aim of this study was to compare biological aspects of the pachodynerus species occurring in the parque municipal das araucárias, guarapuava, paraná, southern brazil. it was carried from december 2001 to december 2004. forty one nests belonging to 5 species were collected, of which 17 pachodynerus guadulpensis, 15 pachodynerus sp., 1 pachodynerus argentinus, 1 pachodynerus ca guadulpensis and 7 pachodynerus nasidens. the nesting activity of pachodynerus sp., p. argentinus and p. guadulpensis occurred in similar periods, from december to march, with the exception of p.guadulpensis, that built one nest in october. pachodynerus ca guadulpensis nested in march and p. nasidens from january to april. the nests of pachodynerus species present a very similar architecture, comprising a linear series of cylindrical cells that fit perfectly into each other forming a continuous tube. with these results we were able to conclude that, even though pachodynerus species present common characteristics, such as nest architecture, nesting activities and habitats in which they occur, the used resources, mortality rates, etc., vary among groups of species occurring in different regions.
Los cielos del sur: Los observatorios astronómicos de Córdoba y de La Plata, 1870-1920
José D Buschini
Prismas : Revista de Historia Intelectual , 2011,
Abstract:
Spatial distribution of nests of Cornitermes cumulans (Isoptera: Termitidae) in a pasture in the municipality of Rio Claro (SP), Brazil / Distribui o espacial dos ninhos de Cornitermes cumulans (Isoptera: Termitidae) em uma área de pastagem no município de Rio Claro (SP), Brasil
Maria Luisa Tunes Buschini
Ambiência , 2006,
Abstract: The nests of Cornitermes cumulans were detected as randomly distributed in a pasture in the municipality of Rio Claro, S o Paulo, Brazil. The mean distance between each nest and its closest neighboring nest influenced their mean volume at the level (mean volume = 27.002 + 4.508 nearest neighbor distance; r= 0.155**, n = 61). Although the distribution pattern of the nests of Cornitermes cumulans was random, competition may be one of the limiting factors for the growth of the colonies which could support the hypothesis that this pattern is tending toward an aggregation, or is, at a larger scale, an aggregating pattern.
Patterns of prey selection of Trypoxylon (Trypargilum) lactitarse Saussure (Hymenoptera: Crabronidae) in southern Brazil
Buschini, MLT.;Borba, NA.;Brescovit, AD.;
Brazilian Journal of Biology , 2008, DOI: 10.1590/S1519-69842008000300008
Abstract: this study was carried out in the parque municipal das araucárias, in the municipality of guarapuava, southern brazil. a total of 449 t. lactitarse nests were collected using trap-nests of different diameters. fifty three species of spiders belonging to 7 families were captured by t. lactitarse. araneidae was the most captured family and has been strongly represented by the genus eustala. through bray-curtis's coefficient and the unweighted pair group method average (upgma), the spiders species can be divided into 3 groups: the smaller group includes the most abundant species (eustala sp1, eustala sp2, acacesia villalobosi, alpaida sp1 and araneus corporosus), the second group includes species with intermediate abundance (wagneriana iguape, araneus omnicolor, eustala sp4, alpaida grayi, eustala sp3, larinia t-notata, mangora sp1 and wagneriana iguape), and the third and largest group includes the least abundant species (aysha gr. brevimana 1, eustala sp5, wagneriana eupalaestra, alpaida scriba, alpaida veniliae, araneus aff. omnicolor, araneus sicki, eustala sp8, mangora sp2, mangora sp3, wagneriana juquia, alpaida sp2, araneus blumenau, eustala sp6, eustala sp7 and ocrepeira galianoae). of 2,029 identified spiders, 1,171 were captured in the araucaria forest, 612 in grassland areas and 246 in the swamp. grassland and swamp areas evidenced greater similarity between them than to the araucaria forest, regarding presence-absence of spider species in t. lactitarse's diet, as well as regarding species abundance in these habitats. the juvenile number (56%) was significantly higher than the female (38%) and male (6%) percentages.
Prey selection in the trap-nesting wasp Trypoxylon (Trypargilum) opacum Brèthes (Hymenprtera; Crabronidae)
Buschini, MLT.;Borba, NA.;Brescovit, AD.;
Brazilian Journal of Biology , 2010, DOI: 10.1590/S1519-69842010000300009
Abstract: the purpose of our research was to document and discuss the temporal patterns of prey use shown by the trap-nesting wasp trypoxylon opacum in two different habitats in southern brazil. it was carried out from december 2001 to december 2004. twenty nine species belonging to five families of spiders were captured by t. opacum. araneidae was the most captured family and has been strongly represented by the genus eustala. through bray-curtis′s coefficient and the unweighted pair group method average (upgma), the spiders can be divided into three groups: the smaller group includes the most abundant species (alpaida sp2, bertrana rufostriata, eustala sp1, eustala sp2, eustala sp3 and eustala sp4), the second group includes species with intermediate abundance (alpaida, alpaida gracia and mangora sp2), and the third and largest group includes the less abundant species, (acacesia villalobosi, alpaida argenata, alpaida sp1, araneus blumenau, araneus sicki, crysometa boraceia, crysometa sp3, eustala sp8, eustala sp11, larinia t-notata, mangora sp1, ocrepeira aff gnomo, sanogasta sp., sanogasta sp2, sanogasta sp3, salticidae sp2, theridion sp1, theridion sp2, wagneriana eupalaestris, wagneriana iguape). of 1,053 identified spiders, 362 were captured in the grassland areas and 691 in the swamp, since t. opacum built nests only in these two habitats. the diversity, richness and evenness of spiders in t. opacum nests were higher in grassland than in the swamp.
Plants used by Megachile (Moureapis) sp. (Hymenoptera: Megachilidae) in the provisioning of their nests
Buschini, MLT.;Rigon, J.;Cordeiro, J.;
Brazilian Journal of Biology , 2009, DOI: 10.1590/S1519-69842009000500025
Abstract: this study was carried out in the parque municipal das araucárias, located in the municipality of guarapuava (pr) from may (06) to april (07). its aim was to investigate which plants are used by megachile (moureapis) sp in provisioning of larvae, and to verify if this bee is oligolectic or polilectic. the collection of the plants was carried out during the bees activity period and in an area covering a 500 m radius from where the nests had been built. a sample of pollens from founded nests and from flowers was used to make permanent slides using the acetolysis method and with the aid of a light microscope, all pollen grains were examined in order to identify the plants used by this bee. a total of 80 pollen grain slides, from 16 nests were analysed. although 99 plants were collected close to the bee's nesting site, in nest slides, the pollen of ludwigia peruviana (36%) and ludwigia sericea (63.6%) (onagraceae) accounted for 99.6% of the total amount of pollen collected. with these results we are able to conclude that megachile (moureapis) sp is an oligolectic species and that these plants species are their important pollen source.
Notes on the biology of Trypoxylon (Trypargilum) opacum Brèthes (Hymenoptera; Crabronidae) in Southern Brazil
Buschini, M. L. T.;Wolff, L. L.;
Brazilian Journal of Biology , 2006, DOI: 10.1590/S1519-69842006000500017
Abstract: the present study investigated the abundance, seasonality and various life-history traits of trypoxylon (trypargilum) opacum. using trap-nests, 320 nests of t. opacum were collected in the parque municipal das araucárias in southern brazil (25° 23' 36" s and 51° 27' 19" w) over a 3 year period. nesting was more frequent during the warm season. nests consisted of a linear series of 1 to 8 brood cells separated by mud partitions, usually followed by an empty vestibular cell and final-closure mud plug. brood cells were most commonly provisioned with spiders of the family araneidae. sex-ratio was strongly female biased, 3.4:1 females:males. natural enemies attacking nests t. opacum included chrysidids, ichneumonids, sarcophagids, bombyliids and ants.
Nesting biology of Centris (Hemisiella) tarsata Smith in southern Brazil (Hymenoptera, Apidae, Centridini)
Buschini, M. L. T.;Wolff, L. L.;
Brazilian Journal of Biology , 2006, DOI: 10.1590/S1519-69842006000600016
Abstract: a total of 67 nests of centris tarsata were obtained from wood trap-nests of different diameters, consisting of a linear series of brood cells built with sand mixed with oil. this species showed a preference for open habitats, since it occurred only in swamp and grassland areas and has never been found in the araucaria forest. nesting activity was bigger during the hot season, especially in december and january. the sex ratio was of 1.48:1 (females/males), significantly different from 1:1. the females were larger than the males and these showed no dimorphism. males were produced in the outermost cells and females in the innermost cells. c. tarsata presented a direct development without diapause in larval stage. they overwinter as adults. development time was similar for males and females. natural enemies are bombyliidae mesocheira bicolor, coelioxys sp. and meloidae.
Mathematical models for Isoptera (Insecta) mound growth
Buschini, MLT.;Abuabara, MAP.;Petrere-Jr, Miguel;
Brazilian Journal of Biology , 2008, DOI: 10.1590/S1519-69842008000300009
Abstract: in this research we proposed two mathematical models for isoptera mound growth derived from the von bertalanffy growth curve, one appropriated for nasutitermes coxipoensis, and a more general formulation. the mean height and the mean diameter of ten small colonies were measured each month for twelve months, from april, 1995 to april, 1996. through these data, the monthly volumes were calculated for each of them. then the growth in height and in volume was estimated and the models proposed.
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