Overlap at landmarks by lek-territorial and swarming males of two sympatric polistine wasps (Hymenoptera Vespidae)

摘要

A mark-recapture study revealed that, in September and October, males of twoPolistesspecies share the same trees and electricity poles:P. dominulusdefend small fixed territories (an alternative strategy is flying through several territories), whileP. gallicuspatrol numerous landmarks in swarms, returning to the same collective perches day after day. This species-specific difference in spatial behaviour (but not in site-attachment), confirmed by laboratory experiments, is associated with higherP. gallicusdensity at landmarks over a shorter activity period.