Social encounters between male brown spiders, Loxosceles gaucho (Araneae, Sicariidae).(Report) From: Journal of Arachnology | Date: September 1, 2007| Author: Stropa, Andre Augusto | COPYRIGHT 2007 American Arachnological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

ABSTRACT. Twenty-two interactions between males of Loxosceles gaucho Gertsch 1967 were investigated in order to study its intrasexual interactions and level of aggressiveness. Aggression by lunges or bites was observed in just 22.7% of the trials and three behaviors were identified as aggression-attenuating mechanisms: a hug; fleeing, and a postural pattern (POS). Interactions took place in 59.1% of the trials and the pairs interacted using one or two behavioral patterns (vibratory ...

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