Social behavior of the maned wolf ( Chrysocyon brachyurus ) and bush dog ( Speothos venaticus ): a study in contrast

摘要: Social behavior of the maned wolf, Chrysocyon brachyurus , and bush dog, Speothos venaticus was compared. Differences in communication mechanisms between these two South American canids could be correlated with their social organization ecology. inhabiting savannahs America feeding primarily on small vertebrates, invertebrates, fruit, exhibits a dispersed system, that is, it is essentially solitary habit. The wolf relies signals carry well over long distances tend to promote spacing individuals through avoidance (for example, bark), conspicuous visual threat display, locus-specific defecation. By contrast, cooperative hunter Neotropical rainforest, mainly rodents are large relative its own size. It employs short-distance signals, which approach (tail-wagging), reduce intraspecific aggression (displays active submission), allow maintenance constant contact forest (the squeak vocalization). Quantitative observations urine-marking suggest frequency marking partly dependent amount available space, whereas may influenced by factors.