Riqueza e composição de Térmitas (Blattodea, Isoptera) em manguezais do litoral amazônico

Abstract

Among the varieties of insects present in mangroves, termites can easily colonize mangrove forests by their winged forms, and thus, build arboreal nests. In view of the presence of this order in mangroves, this work presents the results of a sampling of Termites (Blattaria, Isoptera) in mangrove forests on the Amazon coast, as well as highlighting ecological aspects of these insects. Two collections were carried out during an annual cycle (dry and rainy) at six sampling sites located in the mangroves of Soure on Marajó Island, Pará. In each sampling site, a 100 mx 3 m transection was delimited, subdivided into 10 plots of land. 5 mx 3 m, with an interval of 5 m between each plot, with a sampling effort of 1h / person in each plot in search of termites in the different microhabitats present in the mangrove. A total of seven species distributed in three genera and three families were found over an annual cycle. The most abundant species were Nasutitermes corniger (Motschulsky, 1855) (38.70%), Nasutitermes nigriceps (Haldeman, 1853) (25.00%) and Nasutitermes surinamensis (Holmgren, 1910) (20.16%). The xylophagous termites were dominant and the dry season the number of species and specimens was higher.

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“…Também são bastante comuns na região amazônica (BANDEIRA 1989;CONSTANTINO 1992a;1992b;MARTIUS 1997;JESUS et al, 1998;MATIAS & ABREU 1999;ACKERMAN et al, 2009;ABREU et al 2012;SILVA & CORRÊA-NETO 2020). Nasutitermes seja predominante na região amazônica (BANDEIRA, 1998;CONSTANTINO 1991b;1992a;1992b) guianensis e V. maxima (Jesus et al, 1998).…”

“…N. surinamensis é relatado por Mill (1992) como pragas de peças estruturais e por Mathews (1977) no Mato Grosso, vivendo em ninhos e em troncos no chão e alimentando-se de madeira. Silva & Corrêa-Neto (2020) e Dambros et al, (2012) registraram, respectivamente, a presença dessa espécie em substratos lenhosos, em manguezais, no Pará e em troncos acima do nível da água, no lago da Hidrelétrica de Balbina, em Presidente Figueiredo.…”

“…Na Amazônia este gênero e outros da família Termitidae têm sido registrados em estudos de levantamentos de insetos em diversos substratos lenhosos expostos à biodeterioração, assim como em árvores (APOLINÁRIO, 1993;BANDEIRA,1998;JESUS et al, 1998;ACKERMAN et al, 2009;MENDONÇA, 2009;BRITO et al, 2012;ACIOLI & OLIVEIRA, 2013;SILVA & CORRÊA-NETO, 2020).…”