Specific Niche Characteristics Facilitate the Invasion of an Alien Fish Invader in Boreal Streams
Joint Authors
Muotka, Timo
Heino, Jani
Korsu, Kai
Huusko, Ari
Source
International Journal of Ecology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Biology
Abstract EN
We studied the ecological niche relations of native stream fish and an alien invader, brook trout (Salvelinus fontinalis), to examine if brook trout had located an underused environmental niche in our boreal study system.
In both study years (1994 versus 2004), we found brook trout to have the most marginal niche position of all the fish species examined.
The most important environmental variable affecting the distribution of brook trout was pH, with acid headwater sites being dominated by this species.
Brown trout, in contrast, had relatively nonmarginal niche, occurring in average conditions across the sampled sites.
Other fish species had niche positions between the two salmonids.
Our results show that fish invasions may be strongly facilitated by the presence of suboptimally occupied environmental niche space in the recipient river system.
American Psychological Association (APA)
Korsu, Kai& Heino, Jani& Huusko, Ari& Muotka, Timo. 2012. Specific Niche Characteristics Facilitate the Invasion of an Alien Fish Invader in Boreal Streams. International Journal of Ecology،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-500072
Modern Language Association (MLA)
Korsu, Kai…[et al.]. Specific Niche Characteristics Facilitate the Invasion of an Alien Fish Invader in Boreal Streams. International Journal of Ecology No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-500072
American Medical Association (AMA)
Korsu, Kai& Heino, Jani& Huusko, Ari& Muotka, Timo. Specific Niche Characteristics Facilitate the Invasion of an Alien Fish Invader in Boreal Streams. International Journal of Ecology. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-500072
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-500072