O bambu Merostachys fischeriana (Bambusoideae: Bambuseae) como habitat para formigas de floresta tropical montana.
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Date
2010
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Abstract
Although Merostachys fi scheriana is very abundant in the Brazilian Atlantic Rainforest, little attention has been paid to the biological interactions with other animals. The present study describes
some of the interactions between ants and this bamboo species. The experiment was carried out in a fragment of a montane tropical forest in the Parque Estadual do Itacolomi, near Ouro Preto, MG, Brazil.
Thirty culms of bamboo were randomly collected. The ants were obtained by direct collection from nodes and internodes. Morphometric variables of the bamboo were recorded for characterization of potential ant habitat. Merostachys fi scheriana grows in rosettes as a thin bamboo (average = 1,0 cm; se = 0,27; n = 20) and is tall enough to reach the upper canopy of this low forest (average = 9,1 m; se = 2,72; n = 20). Fifteen ant species were sampled. Brachymyrmex heeri Forel was the most abundant in the nodes, while Camponotus crassus Mayr (Hymenoptera: Formicidae) was the most abundant in the
internodes. The composition of the species that inhabit the internodes was different from the composition in the node (Q-test: Q = 3,76; P = 0,05). The level of occupation was defi ned by the number of holes (F = 10,33; P < 0,01), the number of internodes in the canopy (F = 6,84; P = 0,01) and the length of the culm (F = 7,52; P = 0,01). The plant’s morphology allowed the occurrence of additional species of ants in the canopy and infl uenced the composition of the entire ant assemblage.
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Keywords
Brachymyrmex, Camponotus, Canopy habitat enrichment, Ant nesting behavior
Citation
FAGUNDES, R. et al. O bambu Merostachys fischeriana (Bambusoideae: Bambuseae) como habitat para formigas de floresta tropical montana. Neotropical Entomology, v. 39, p. 906-911, 2010. Disponível em: <http://www.scielo.br/scielo.php?script=sci_pdf&pid=S1519-566X2010000600009&lng=en&nrm=iso&tlng=pt>. Acesso em: 12 nov. 2015.