the ecology and feeding habits of the arboreal trap-jawed ant daceton armigerum生态和进食习惯的树栖trap-jawed ant daceton armigerum.pdf

The Ecology and Feeding Habits of the Arboreal Trap- Jawed Ant Daceton armigerum 1,2 3 4,5 ´ ´ 2,6 7 Alain Dejean *, Jacques H. C. Delabie , Bruno Corbara , Frederic Azemar , Sarah Groc , ´ ˆ 1, Maurice Leponce8 Jerome Orivel ´ ˆ ´ 1 CNRS, Ecologie des Forets de Guyane (UMR-CNRS 8172), Campus Agronomique, Kourou, France, 2 Universite de Toulouse, UPS (Ecolab), Toulouse, France, 3 U.P.A. ´ ˆ ´ Laboratorio de Mirmecologia, Convenio UESC/CEPLAC, Itabuna, Bahia, Brazil, 4 CNRS, Laboratoire Microorganismes, Genome et Environnement (UMR-CNRS 6023), ´ ` ´ ´ Universite Blaise Pascal, Aubiere, France, 5 Clermont Universite, Universite Blaise Pascal (LMGE), Clermont-Ferrand, France, 6 CNRS, Laboratoire d’Ecologie Fonctionnelle et ˆ ˆ Environnement (UMR-CNRS 5245), Toulouse, France, 7 Instituto de Biologia Universidade Federal de Uberlandia, Uberlandia, Minas Gerais, Brazil, 8 Biological Evaluation Section, Royal Belgian Institute of Natural Sciences, Brussels, Belgium Abstract Here we show that Daceton armigerum, an arboreal myrmicine ant whose workers are equipped with hypertrophied trap- jaw mandibles, is characterized by a set of unexpected biological traits including colony size, aggressiveness, trophobiosis and hunting behavior. The size of one