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Previous issue date: 2003-04-09 / Studies to observe insects of the family Scolytidae (Coleoptera) in mangrove essences were carried in the city of Rio de Janeiro, Barra da Tijuca, Parque da Gleba "E" (Area 1) and Barra de Guaratiba (Area 2) during 25 months from August 1999 to August 2001, based on weekly observations of stems of three essences occurring in these areas: Rhysophora mangle L. (Rhysophoraceae), Avicennia schaueriana STAPFT & LEECHM (Acanthaceae) and Hibiscus pernambucensis L. (Malvaceae). It was utilized 120 stems of each essence in each area. After the observation of occurrence of Scolytidae attack in essences samples of 10cm of each stem were take biweekly for laboratory observation. The numbers of perforations, the number of insects captured, number of galleries and larvae were analyzed statistically and graphically compared to weather data collected from the Esta??o Meteorol?gica do Aeroporto de Jacarepagu? (?rea 1) and the Esta??o Experimental do Instituto Nacional de Meteorologia, INMET, RJ, located in Barra de Guaratiba (area 2). Were captured nine species of Scolytidae, distributed in six genera: Xileborus, Hypotenemus, Premnobius, Ambrosiodmus, Cryptocaremus and Cnesinus. The most significant species in the two areas were Xileborus affinis (29.70%), Hypothenemus eruditos (23.17%) and Ambrosiodmus haguedorni (20.78%). There was significant correlation between population density and climatic variations for the three species of Scolytidae with the highest percentage of occurrence. The peak of occurrence was observed in January and February and decreased in June, July and August. There was significant variation in the incidence of beetles preference regarding botanical essences, Rhysophora mangle being the most attacked and Hibiscus pernambucensis unless attacked. Were also used traps baited with alcohol Modelo Carvalho - 47, to catch the Scolytidae. The observations and collections of insects were held weekly. The data underwent the same statistical methods. The results obtained with the traps did not differ from those obtained with the use of stem. It was verified that the area with the highest incidence of insects was the area 2, which presents more degraded vegetation at the expense of area 1 which presents a more preserved mangrove. / Estudos para observa??o de insetos da fam?lia Scolytidae (Coleoptera), em ess?ncias de mangue, foram realizados no Munic?pio do Rio de Janeiro, Barra da Tijuca, Parque da Gleba ?E? ? ?rea 1 e Barra de Guaratiba ? ?rea 2, durante 25 meses, de agosto de 1999 ? agosto de 2001, baseando-se na observa??o semanal de toletes de tr?s ess?ncias ocorrentes nestas ?reas: Rhysophora mangle L. (Rhysophoraceae), Avicennia schaueriana STAPFT & LEECHM (Acanthaceae) e Hibiscus pernambucensis L. (Malvaceae). Foram utilizados 120 toletes de cada ess?ncia em cada ?rea. Posteriormente ? observa??o da ocorr?ncia do ataque dos Scolytidae ?s ess?ncias, foram retirados, quinzenalmente amostras de 10 cm de cada tolete, para observa??o em laborat?rio. Os n?meros de perfura??es, n?mero de insetos capturados, n?mero de galerias e de larvas foram analisados estat?stica e graficamente em rela??o aos dados clim?ticos coletados junto ? Esta??o Meteorol?gica do Aeroporto de Jacarepagu? (?rea 1) e a Esta??o Experimental do Instituto Nacional de Meteorologia, INMET, RJ, localizada na Barra de Guaratiba (?rea 2). Foram capturadas nove esp?cies de Scolytidae, distribu?das em seis g?neros: Xileborus, Hypotenemus, Premnobius, Ambrosiodmus, Cryptocaremus e Cnesinus. As esp?cies mais significativas nas duas ?reas foram Xileborus affinis (29,70%), Hypothenemus eruditos (23,17%) e Ambrosiodmus haguedorni (20,78%). Houve correla??o significativa entre a densidade populacional e as varia??es clim?ticas para as tr?s esp?cies de Scolytidae com maior percentual de ocorr?ncia. Obsevou-se picos de ocorr?ncia nos meses de janeiro e fevereiro e queda nos meses de junho, julho e agosto. Houve varia??o significativa na prefer?ncia de incid?ncia dos cole?pteros em rela??o ?s ess?ncias bot?nicas, sendo Rhysophora mangle a mais atacada e Hibiscus pernambucensis a menos atacada. Ainda foram utilizadas armadilhas com isca de etanol Modelo Carvalho ? 47, para a captura dos Scolytidae. As observa??es e coletas dos insetos foram realizadas semanalmente. Os dados sofreram os mesmos tratamentos estat?sticos. Os resultados obtidos com as armadilhas n?o diferiram dos obtidos com a utiliza??o dos toletes. Constatou-se que a ?rea com maior incid?ncia dos insetos foi a ?rea 2, que apresenta uma vegeta??o mais degradada em detrimento da ?rea 1 a qual apresenta um manguezal mais preservado.
| Identifer | oai:union.ndltd.org:IBICT/oai:localhost:jspui/1889 |
| Date | 09 April 2003 |
| Creators | PEREIRA, Cl?udio Henrique |
| Contributors | Cassino, Paulo C?sar Rodrigues, Carvalho, Ac?cio Geraldo de, Cassino, Paulo C?sar Rodrigues, Carvalho, Ac?cio Geraldo de, Souza, Solange S?o-Paulo de, Aguiar-Menezes, Elen de Lima, Patiu, K?tia de Mello |
| Publisher | Universidade Federal Rural do Rio de Janeiro, Programa de P?s-Gradua??o em Biologia Animal, UFRRJ, Brasil, Instituto de Ci?ncias Biol?gicas |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UFRRJ, instname:Universidade Federal Rural do Rio de Janeiro, instacron:UFRRJ |
| Rights | info:eu-repo/semantics/openAccess |
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