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Body mass and territorial defence strategy affect the territory size of odonate species

Proceedings of the Royal Society. B, Biological sciences, 2019-12, Vol.286 (1917), p.1-8 [Peer Reviewed Journal]

2019 The Author(s) ;ISSN: 0962-8452 ;EISSN: 1471-2954

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  • Title:
    Body mass and territorial defence strategy affect the territory size of odonate species
  • Author: Aromaa, Suvi ; Ilvonen, Jaakko J. ; Suhonen, Jukka
  • Subjects: Ecology
  • Is Part Of: Proceedings of the Royal Society. B, Biological sciences, 2019-12, Vol.286 (1917), p.1-8
  • Description: The territory is a distinct mating place that a male defends against intruding conspecific males. The size of a territory varies between species and most of the variation between species has been found to scale allometrically with body mass. The variation that could not be explained by body mass has been explained with several variables such as habitat productivity, trophic level, locomotion strategy and thermoregulation. All previous interspecific comparative studies have been done on vertebrate species such as birds, mammals, reptiles and fishes, meaning that studies using invertebrate species are missing. Here,we studied the relationship of a species’s territory size with its fresh body mass (FBM) in addition to other ecologically relevant traits using 86 damselfly and dragonfly (Odonata) species.We found that territory size is strongly affected by species FBM, following an allometric relationship similar to vertebrates. We also found that the territory size of a species was affected by its territorial defence strategy, constantly flying species having larger territories than species that mostly perch. Breeding habitat or the presence of sexual characters did not affect territory sizes, but lotic species and species without wing spots had steeper allometric slopes. It seems that an increase in a species’s body mass increases its territory size and may force the species to shift its territory defence strategy from a percher to a flier.
  • Publisher: Royal Society
  • Language: English
  • Identifier: ISSN: 0962-8452
    EISSN: 1471-2954
  • Source: PubMed Central
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