Ants nesting in dry fallen petioles of Cecropia obtusifolia Bertol. (Urticaceae): vertical stratification and nest site limitation

Cecropia (Urticaceae) trees continuously shed their old large leaves, which fall directly on the forest floor (ground stratum) or accumulate on the aboveground vegetation under Cecropia canopies (vegetation stratum). Since twig-nesting ants are expected to be more nest site limited in the higher for...

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