Levantamento e flutuações populacional de coleópteros em vegetação do cerrado da baixada cuiabana, MT.

Abstract

RESUMOEste trabalho tem por objetivo avaliar qualitativa e quantitativamente as espécies de coleópteros que ocorrem associados à vegetação de cerrado na baixada cuiabana. Em uma área de preservação permanente, foram instaladas, a 1,5 m do nível do solo, seis armadilhas de impacto, modelo escolitídeo-Curitiba, iscadas com álcool. ABSTRACTIn this work it was aimed at contributing for the knowledge of the species of coleopterons that occur associated to the savannah vegetation in the Baixada Cuiabana. In an area of permanent preservation it were installed, at 1.5 m of the level of the soil, six impact traps, model escolitídeo-Curitiba, baited with alcohol. It were captured 2111 individuals, distributed in eight families, 24 genera and 37 species. The most representative species were: Hypothenemus obscurus (Fabricius), 1801; Cryptocarenus heveae (Hagedorni), 1912; Cryptocarenus diamatus Eggers, 1937; Cryptocarenus seriatus Eggers, 1933 and Hypothenemus eruditus Westwood, 1836, 19 dominant species, five constant, 21 accidental and 18 rare species have occurred. The diversity index was considered high (H' = 0,77), showing an environment, still, balanced ecologicaly.

Influence of ethanol concentration on Scolytinae (Coleoptera: Curculionidae) in a native forest in the municipality of Campo Verde - MT

“…In the six treatments 7,469 individuals were collected belonging to 12 genera and 31 species, which differs from the results obtained by Dorval et al (2001) and Rocha et al (2011b) with Scolytinae in Cerrado vegetation developed in the region. The treatments T3, T5 and T4 were the most diversified in number of species.…”

“…The most commonly used flight traps are funnels with two fins, as they are considered to be more efficient compared to that of one fin used by Montgomery & Wargo (1983). Fletchamn (1995); Abreu et al (1997); Dorval & Peres Filho (2001); Peres Filho et al (2007); Rocha et al (2011); Reding et al (2011) used the model with two fins in studies with Scolytinae in Brazil.…”

Análise da ocorrência de coleópteros em plantios de Eucalyptus camaldulensis Dehn. em Cuiabá, MT

“…Foi possível constatar os períodos interferem na ocorrência de alguns insetos, pois foram observados que 13 espécies apresentaram diferenças significativas entre os períodos de estiagem e de chuva. Dorval & Peres Filho (2001)…”

Bark beetles in a mixed plantation of Bertholletia excelsa and Hevea brasiliensis in the southern amazon

“…The species Xyleborus spinulosus had a preference for a wide variety of hosts and has been registered by other researchers in native forest areas PERES FILHO, 2001;ROCHA et al, 2011b;ABREU et al, 2012) and in rubber plantations (DALL`OGLIO; PERES FILHO, 1997; FLECHTMANN; GASPARETO, 1997), demonstrating its wide occurrence in different forest ecosystems.…”