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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

Chapter:
(p.203) CHAPTER 16 Territoriality in odonates
Source:
Dragonflies and Damselflies
Author(s):

Jukka Suhonen

Markus J. Rantala

Johanna Honkavaara

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199230693.003.0016

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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