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Dragonflies and DamselfliesModel Organisms for Ecological and Evolutionary Research$
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Alex Córdoba-Aguilar

Print publication date: 2008

Print ISBN-13: 9780199230693

Published to Oxford Scholarship Online: September 2008

DOI: 10.1093/acprof:oso/9780199230693.001.0001

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Territoriality in odonates

Territoriality in odonates

(p.203) CHAPTER 16 Territoriality in odonates
Dragonflies and Damselflies

Jukka Suhonen

Markus J. Rantala

Johanna Honkavaara

Oxford University Press

This chapter discusses causes and consequences of territorial behaviour in odonates. In territorial species, males may use two mating tactics or strategies that may be environmentally or genetically determined: territoriality and non-territoriality. The tactic a male exhibits in each particular case is determined by the cost-benefit ratio of territorial and non-territorial behaviours. The main benefit of territoriality is increased access to females, and the costs may accumulate due to e.g., predation, injuries, and/or energy loss due to territorial contests. Moreover, density of both males and females as well as sex-ratio at breeding sites both contribute to the costs and benefits of each tactic. Interspecific aggression by heterospecific males may also influence the profitability of these tactics.

Keywords:   density, energy reserves, immunocompetence, intra territoriality, interspecific territoriality, parasites, resource holding potential, sexual ornament, sex-ratio

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