The role of landmarks in territory maintenance by the black saddlebags dragonfly, Tramea lacerata

@article{Lojewski2014TheRO,
  title={The role of landmarks in territory maintenance by the black saddlebags dragonfly, Tramea lacerata},
  author={Jeffrey A. Lojewski and Paul V. Switzer},
  journal={Behavioral Ecology and Sociobiology},
  year={2014},
  volume={69},
  pages={347-355}
}
Territoriality can reduce competition for resources, but territorial defense can be costly; therefore, any behavior that reduces territorial costs may increase the net benefit of territoriality. Some species will align their territory boundaries with conspicuous landmarks that may serve to reduce defense costs. Dragonflies, including black saddlebags (Tramea lacerata), defend territories at breeding sites, keeping rival males away to allow themselves access to females. We used three treatments… 
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