Termite Communities in Sugarcane Plantations in Southeastern Brazil: an Ecological Approach

Abstract

Abstract.Termites are key components of soil fauna, playing an essential role in organic matter decomposition and nutrient cycling. However, they can cause significant economic losses in commercial plantations, such as sugar cane. Therefore, the correct identification of termite species is critical for pest control. Here, we evaluated the species richness, abundance and functional groups of termites in sugarcane plantations in 53 cities throughout the state of São Paulo, southeastern Brazil. We also analyzed the influence of macroclimatic variables on termite species distribution and functional groups. We found 22 taxa of two families, of which the most frequent species were Termitidae (96.51%). Within this family, Apicotermitinae had the highest frequency of occurrence (37.12%), followed by Termitinae (30.57%), Syntermitinae (27.95%), and Nasutitermitinae (0.8 %). The other family, Rhinotermitidae, had the lowest frequency (3.5%), being represented only by Heterotermes sulcatus Mathews. We classified Neocapritermes opacus Hagen (29.26%), Apicotermitinae sp.2 (24.89%), Cornitermes cumulans Kollar (13.10%), and Apicotermitinae sp.1 (6.99%) as common taxa. The remaining 18 species were classified as rare. The most common functional group was humus-feeders (37%), followed by wood-feeders (34%), grasslitter feeders (25%), and intermediate feeders (4%). Climate influenced the distribution of common species, humus-feeders and grass-litter feeders.Regarding the pest status of termites in sugar cane plantations, we suggest that the exasperated use of pesticide in the last decades has reduced the abundance of species considered pests (e.g. Heterotermes) and reinforce the importance of ecological approaches for determining the best pest control methods.Keywords: Functional groups; Heterotermes sp.; Isoptera. Comunidades de Cupins em Cultivos de Cana-de-Açúcar no Estado de São Paulo: Uma Abordagem EcológicaResumo. Os cupins são importantes componentes da fauna de solo, atuando na decomposição da matéria orgânica e ciclagem de nutrientes. Porém, em cultivos de cana-de-açúcar, podem provocar perdas econômicas significativas. A correta identificação das espécies de cupins é um ponto crítico para o controle daquelas que adquiriram e/ou que podem atingir o status de praga. Este trabalho objetivou identificar a riqueza, a abundância e os grupos funcionais destes insetos em canaviais de 53 municípios do estado de São Paulo. Paralelamente, avaliou se as variáveis macroclimáticas influenciam a distribuição das comunidades de cupins e dos grupos funcionais. A riqueza obtida foi de 22 táxons. Da família Termitidae (96,51%), a maior frequência de ocorrência foi da subfamília Apicotermitinae (37,12%), seguindo-se Termitinae (30,57%), Syntermitinae (27,95%) e Nasutitermitinae (0,8%). A família Rhinotermitidae (3,5%) esteve representada apenas por Heterotermes sulcatus Mathews. Quatro táxons foram considerados comuns em canaviais, Neocapritermes opacus Hagen (29,26%), Apicotermitinae sp.2 (24,89%), Cornitermes cumulans Kollar (13,10%) e ...

FIRST RECORDS OF THE SUBTERRANEAN TERMITES Procornitermes striatus (HAGEN) AND Procornitermes triacifer (SILVESTRI) (BLATTODEA, ISOPTERA, TERMITIDAE) IN MAIZE FIELDS IN ARGENTINA

“…However, in one case, the distance between plants occupied by different species was very short, less than 0.5 m. BERTI FILHO et al, 1993;CANCELLO, 1986;CONSTANTINO, 2002;CZEPAK et al, 1993;FERREIRA, 1998;SILVA et al, 1968). In sugarcane, although P. triacifer has been cited as causing damage to the stems, an intensive study in cane fields of São Paulo catalogs this species as infrequent (BERTI FILHO et al, 1993;JUNQUEIRA et al, 2015). It has also been mentioned damaging elephant grass (Pennisetum purpureum Schum.…”

Soil-feeding termite diversity and abundance in a natural tropical humid forest (Tai National Park, Côte d'Ivoire)

“…Termites play important roles in the functioning and dynamic of tropical ecosystems [23,27] . They are also known as good bio-indicators in tropical ecosystems because of their sensitivity to habitat disturbance causing changes in their species richness, composition and functional characteristics [16,18] .…”