Sociability between invasive guppies and native topminnows

The role of interspecific social interactions during species invasions may be more decisive than previously thought. Research has revealed that invasive fish improve their foraging success by shoaling with native Mexican species, and potentially increase the chances of invasion success. However, do...

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Bibliographic Details
Published in:PloS one 2018-02, Vol.13 (2), p.e0192539-e0192539
Main Authors: Camacho-Cervantes, Morelia, Ojanguren, Alfredo F, Domínguez-Domínguez, Omar, Magurran, Anne E
Format: Article
Language:English
Subjects:
Analysis
Animal behavior
Animals
Behavior, Animal
Biodiversity
Biology and Life Sciences
Cyprinidae
Cyprinidae - physiology
Ecology
Ecology and Environmental Sciences
Evolution
Food
Fundulidae
Guppies
Indigenous species
Interspecific
Introduced Species
Invasive fish
Invasive species
Medicine and Health Sciences
Mexico
Native species
Neotoca bilineata
Nonnative species
People and places
Physiological aspects
Poecilia - physiology
Poeciliopsis infans
Social factors
Social interactions
Trends
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Summary:The role of interspecific social interactions during species invasions may be more decisive than previously thought. Research has revealed that invasive fish improve their foraging success by shoaling with native Mexican species, and potentially increase the chances of invasion success. However, do native individuals tend to associate with invaders as well? We tested the hypothesis that the twoline skiffia (Neotoca bilineata) and the Lerma livebearer (Poeciliopsis infans), both native endemic Mexican topminnows, will associate with guppies, a notorious invasive species present in Mexico. Our investigation shows that guppies, twoline skiffias and Lerma livebearers have a mutual tendency to associate with each other. Although there is a marked tendency to shoal with heterospecifics in this system, shoaling partners do not necessarily benefit equally from the association. Further research on invasive-native social interactions is needed to promote our understanding of potential facilitation by natives.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0192539