Artigo

Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações

Distribution and diversity of termites were studied in areas of primary forest, capoeira (secondary forest) and pasture in Central Amazonia, near Manaus, Amazonas State Soil humidity, soil compactation (infiltration rate of water in the soil), and soil and air temperatures were measured to establish...

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Autor principal: Bandeira, Adelmar Gomes
Grau: Artigo
Idioma: pt_BR
Publicado em: Acta Amazonica 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/14012
id oai:repositorio:1-14012
recordtype dspace
spelling oai:repositorio:1-14012 Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações Bandeira, Adelmar Gomes Distribution and diversity of termites were studied in areas of primary forest, capoeira (secondary forest) and pasture in Central Amazonia, near Manaus, Amazonas State Soil humidity, soil compactation (infiltration rate of water in the soil), and soil and air temperatures were measured to establish relationships with the termite distribution. With approximately the same amount of collecting in each of the three habitats, it was found that most of the genera were distributed in the three environments. Some genera were sorted into species. Nasutitermes was the most common genus, with the greatest number of species, and was most frequent in pasture. The total number of nests was also higher in the pasture than in the primary forest. Termites in the soil can reach almost a meter in depth and their abundance was greatest in capoeira, fallowed by pasture and lastly primary forest. The infiltration of water in the soil and the soil humidity diminished with deforestation. The diurnal range of soil and air temperatures was greater in pasture than in primary forest. The lack of vegetation and its effects on the microclimate could be responsible for the distribution of some Isoptera groups. Several species of ants were found to be predators of termites, mainly when nests were opened for collecting. Foram estudadas a distribuição e diversidade de cupins em áreas de floresta primária, capoeira e pastagem na Amazônia Central, Estado do Amazonas. Foram feitas medidas de umidade do solo, compactação do solo (taxa de infiltração de água no solo) e temperaturas do solo e do ar, para estabelecer relações com a distribuição dos cupins. Com um esforço de coletas aproximadamente equivalente nos três ambientes, ficou demonstrado que a maioria dos gêneros se distribui nos três habitats. Nasutitermes foi o gênero mais comum e com maior diversidade, sendo mais freqüente em pastagem. O número total de ninhos de cupins foi também maior na pastagem que na floresta primária. Os cupins do solo podem atingir quase um metro de profundidade e seu número foi maior na capoeira, seguido da pastagem e por último a floresta. A capacidade de infiltração de água no solo e umidade do solo diminuíram com o desmatamento. As flutuações diárias de temperaturas do solo e do ar foram maiores na pastagem que na floresta. A retirada da vegetação primária e as conseqüentes modificações microclimáticas poderiam ter sido responsáveis pela distribuição de certos grupos de Isoptera. 2020-04-24T16:06:07Z 2020-04-24T16:06:07Z 1979 Artigo https://repositorio.inpa.gov.br/handle/1/14012 10.1590/1809-43921979093481 pt_BR Volume 9, Número 3, Pags. 481-499 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Amazonica
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
description Distribution and diversity of termites were studied in areas of primary forest, capoeira (secondary forest) and pasture in Central Amazonia, near Manaus, Amazonas State Soil humidity, soil compactation (infiltration rate of water in the soil), and soil and air temperatures were measured to establish relationships with the termite distribution. With approximately the same amount of collecting in each of the three habitats, it was found that most of the genera were distributed in the three environments. Some genera were sorted into species. Nasutitermes was the most common genus, with the greatest number of species, and was most frequent in pasture. The total number of nests was also higher in the pasture than in the primary forest. Termites in the soil can reach almost a meter in depth and their abundance was greatest in capoeira, fallowed by pasture and lastly primary forest. The infiltration of water in the soil and the soil humidity diminished with deforestation. The diurnal range of soil and air temperatures was greater in pasture than in primary forest. The lack of vegetation and its effects on the microclimate could be responsible for the distribution of some Isoptera groups. Several species of ants were found to be predators of termites, mainly when nests were opened for collecting.
format Artigo
author Bandeira, Adelmar Gomes
spellingShingle Bandeira, Adelmar Gomes
Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title_short Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title_full Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title_fullStr Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title_full_unstemmed Ecologia de cupins (Insecta: Isoptera) da Amazônia Central: efeitos do desmatamento sobre as populações
title_sort ecologia de cupins (insecta: isoptera) da amazônia central: efeitos do desmatamento sobre as populações
publisher Acta Amazonica
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/14012
_version_ 1787141910379364352
score 11.755432

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