The role of aggression in range expansion and biological invasions

Hudina, Sandra, Hock, Karlo and Zganec, Kresimir (2014) The role of aggression in range expansion and biological invasions. Current Zoology, 60 3: 401-409.

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Author Hudina, Sandra
Hock, Karlo
Zganec, Kresimir
Title The role of aggression in range expansion and biological invasions
Journal name Current Zoology   Check publisher's open access policy
ISSN 1674-5507
Publication date 2014-01-01
Sub-type Article (original research)
Open Access Status File (Publisher version)
Volume 60
Issue 3
Start page 401
End page 409
Total pages 9
Place of publication Beijing, China
Publisher Chinese Academy of Sciences
Language eng
Subject 1103 Clinical Sciences
Abstract Traits that aid in the invasion process should exhibit a gradient across the expansion range in response to changing selection pressures. Aggression has been repeatedly associated with invasion success in many taxa, as it may help invaders to wrestle the resources from other species which enhances their success in a novel environment. However, aggression primarily allows individuals to overcome conspecific rivals, providing advantages in competition over resources. Agonistic prowess could therefore increase fitness at both ends of the expansion gradient. Here we review the role of aggression in range expansion of invasive species, and its potential role as a driver of range expansion. We analyze how these different mechanisms could affect trait variation in expanding and invasive populations. Specifically, we look at how aggression could help dilate the edges of a population through niche competition, as well as lead to exclusion from the center (i.e. areas of high population density) by the conspecifics. Both of these processes will result in a characteristic spatial distribution of phenotypes related to aggression that could provide insights into the ecological pressures and dynamics of expanding populations, potentially providing clues to their success as niche competitors and invasive species.
Keyword Aggression
Invasion success
Invasive species
Trait variation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
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