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Search Results: 1 - 5 of 5 matches for " Bocchiglieri "
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MAMíFEROS DE MéDIO E GRANDE PORTE EM UMA áREA ALTERADA NO CERRADO: ESTRUTURA DA COMUNIDADE, SOBREPOSI O DE NICHO E DENSIDADE
ADRIANA BOCCHIGLIERI
Mastozoolog?-a neotropical , 2010,
Abstract:
Avalia??o do comportamento de metais pesados no tratamento de esgotos por disposi??o no solo
Paganini, Wanderley da Silva;Souza, Adriana de;Bocchiglieri, Miriam Moreira;
Engenharia Sanitaria e Ambiental , 2004, DOI: 10.1590/S1413-41522004000300009
Abstract: this assay presents the soil contamination levels by heavy metals, from 16 years of a sewage plant operation, by overland flow, in populina city, s?o paulo state, brazil. the analyses carried out for this evaluation were the ph and the following heavy metals: copper, zinc, aluminum, cadmium, mercury, molybdenum, nickel and lead. the results showed that the majority of the metals presented similar behavior, with considerable concentration up to 30 and 50m of distance from the launching spot, concentrated on the first 20cm of depth. the dumping from gas stations on the sewage collecting system seems to contribute to the increase of the lead levels. new researches should be carried out due to the high values of hg, ni, pb and al registered 20m far from the sewage launching spots, because if it is confirmed there will be high contamination risks to the table waters.
Composi??o e diversidade de mamíferos de médio e grande porte no Cerrado do Brasil central
Bocchiglieri, Adriana;Mendon?a, André Faria;Henriques, Raimundo Paulo Barros;
Biota Neotropica , 2010, DOI: 10.1590/S1676-06032010000300019
Abstract: composition and diversity of medium and large size mammals in the cerrado of central brazil. studies about medium- and large sized mammals (> 1.0 kg) in disturbed areas in the cerrado showed that many species are adapted to anthropogenic environments. we investigated the structure of mammals assemblages in an area of 92,000 ha located in southwest of bahia and covered by plantations of pinus spp., soybeans and conserved strips of cerrado sensu stricto. the mammals were recorded in nine sampling campaigns of 12 days between january/2008 and may/2009 in diurnal and nocturnal transects that varied 5-15 km in length per campaigns totaling 3,600 km traveled/period. in this area 29 species were recorded, 23 through the line transect and others outside transect by indirect observation, capture and previous records. the mammal community consists mostly of representatives of the carnivora (41.4%) and omnivore species (36.7%). the only endemic species of cerrado recorded in the area was hoary fox, lycalopex vetulus. only 13.6% of species were present in all sampling (ozotoceros bezoarticus, pecari tajacu and tolypeutes tricinctus) and seven of which correspond to 91.73% of the records made. the species that had largest number of records (23.76%) is three-banded armadillo (t. tricinctus), probably this area holds the largest population of this endangered species in biome, highlighting the importance of avoiding areas of native vegetation are replaced by monocultures and reforestation. many of the species recorded are generalists in habitat use and widely distributed throughout the biome, occurring even in disturbed habitats. the maintaining of observed diversity in this area is due to its large size and the mosaic of environments that provide a greater variety and diversity of resources such as shelter and food, allowing also the presence of species with low densities and specialists in the diet and habitat.
História natural de Leptodactylus mystacinus e Leptodactylus fuscus (Anura: Leptodactylidae) no Cerrado do Brasil Central
De-Carvalho, Crizanto Brito;Freitas, Evellyn Borges de;Faria, Renato Gomes;Batista, Renato de Carvalho;Batista, Cássio de Carvalho;Coelho, Welington Araújo;Bocchiglieri, Adriana;
Biota Neotropica , 2008, DOI: 10.1590/S1676-06032008000300010
Abstract: aspects of the ecology of leptodactylus mystacinus and leptodactylus fuscus were investigated in an area of the cerrado of central brazil. the study included use of microhabitat, activity patterns, diet and, morphometry. observations were conducted between april, 2006, and february, 2007. the species are sexually dimorphic - females larger than males - and body size in l. mystacinus is larger than that of l. fuscus. both species preferred the ground surface (microhabitat) of wetland habitats with herbaceous vegetation close to lentic water bodies. leptodactylus mystacinus was observed most often in october and november (8:00-8:59pm and 11:00-11:59 pm), and l. fuscus in november and october between 7:00 pm and 8:59 pm. the diet of both populations was based on arthropoda, primarily coleoptera, which was the most important order (ivi). differences in the volumetric proportions of the categories of then preys used, and in the periods when they were most observed, are probably the factors that contribute the most to the coexistence of both species in the area. intersexual differences in the diet were observed in both species. these differences were probably associated with the differential allocation of resources to the production of gametes or occasional differences in the use of space by the two sexes.
Nicho ecológico e aspectos da história natural de Phyllomedusa azurea (Anura: Hylidae, Phyllomedusinae) no Cerrado do Brasil Central
Freitas, Evellyn Borges de;De-Carvalho, Crizanto Brito;Faria, Renato Gomes;Batista, Renato de Carvalho;Batista, Cássio de Carvalho;Coelho, Welington Araújo;Bocchiglieri, Adriana;
Biota Neotropica , 2008, DOI: 10.1590/S1676-06032008000400009
Abstract: aspects of the ecology and natural history of phyllomedusa azurea were investigated in an area of central brazilian cerrado between april, 2006, and february, 2007. observations were conducted between 6:00 pm and 5:00 am. the study focused on spatial, temporal, and trophic niches, morphometry and reproduction. most animals were recorded vocalizing in places dominated by herbaceous vegetation and an open canopy. the main substrates used were bushes and trees, and animals were seen perched most often between 0.5 and 1.0 m of height. spatial niche breadth was 2.91 and 3.83 for substrate and perch height, respectively. most animal were sighted close to lentic water bodies, usually up to 0.50 m. it is possible that these characteristics are related primarily to the phylogeny of the genus and secondarily to the specific needs of the species and the local availability of resources. the bushes and trees were used by the species mainly as sites of vocalization and oviposition. specimens of phyllomedusa azurea was sighted most frequently between 8:00 pm and 9:00 pm. estimated temporal niche breadth (activity period) was 4.68. prolonged reproductive pattern was also observed predominantly in the months with higher temperature and higher humidity (september to february). the diet consisted of eleven items. the most important prey taxon for the females was orthoptera (ivi = 63), whereas for the males, it was araneae (ivi = 33). the breadths numeric and volumetric of the trophic niche, was respectively 1.80 and 1.16, for females, and 4.03 and 3.92, for males. males and females differed in size (svl) and mass, with the females being larger and heavier. the sizes of smaller reproductive individuals males and females were 34.64 and 40.33 mm, respectively. differences in size may be related to different investments in reproduction by the two sexes.
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