Publications des scientifiques de l'IRD

Lopes de Oliveira M. I., Brunet Didier, Mitja Danielle, Cardoso W. S., Benito N. P., Guimaraes M. F., Brossard Michel. (2011). Incidence of epigeal nest-building termites in Brachiaria pastures in the Cerrado. Acta Scientiarum-Agronomy, 33 (1), p. 181-185. ISSN 1679-9275.

Titre du document
Incidence of epigeal nest-building termites in Brachiaria pastures in the Cerrado
Année de publication
2011
Type de document
Article référencé dans le Web of Science WOS:000289664600025
Auteurs
Lopes de Oliveira M. I., Brunet Didier, Mitja Danielle, Cardoso W. S., Benito N. P., Guimaraes M. F., Brossard Michel
Source
Acta Scientiarum-Agronomy, 2011, 33 (1), p. 181-185 ISSN 1679-9275
This study aimed to determine the number of termite epigeal nests and estimate the soil turning capacity of termites in cultivated pasture environments and in a native vegetation area. Surveys were conducted in four areas: three pasture areas and a Cerrado area, measuring 5 ha each. For each nest, the height, the perimeter and diameter at the base were measured. The volume of each mound was calculated. Turned soil was determined by randomly sampling 30 termite mounds in a pasture area for bulk density determinations. The mean number of termite mounds per ha was 408; the highest number of termite nests (672 per ha) was found in the 10-year-old pasture. In terms of termite mound density, there was no difference between the Cerrado, 3-year-old pasture, and 3-year-old intercropped pasture treatments. The total area occupied by termite nests ranged from 0.4 to 1.0%. The mean bulk density of the nest materials was 1.05 g cm(-3). The total nests volume ranged from 4 to 11 m(3) ha(-1). The total mass of the soil turned by the termites ranged from 3.4 to 13.4 ton. ha(-1).
Plan de classement
Biologie du sol [074] ; Sciences du monde végétal [076]
Localisation
Fonds IRD [F B010053792]
Identifiant IRD
fdi:010053792
Contact