NDLI: The biotic resistance role of fish predation in fouling communities

Content Provider	Springer Nature Link
Author	Kremer, Laura Pioli Rocha, Rosana Moreira
Copyright Year	2016
Abstract	Predation may often influence native species dynamics and so may be important for the control of introduced species as well. Here, we examine how predation can regulate fouling communities on artificial substrates in the coast of Brazil. Specifically, we tested whether predators limit colonization and establishment of introduced species. A predation experiment using plastic plates as experimental replicates (predator excluded and not excluded) was carried out in Ceará, Bahia, São Paulo and Santa Catarina, between 3°S and 27°S. Ninety-eight species colonized the plates, 14 of which were introduced. While species richness was similar among the treatments (except in Santa Catarina), community structure varied by treatment and introduced species were less abundant in the predation treatment at all sites. Also, predation was selective and controlled introduced, poorly defended, species, specifically ascidians. Thus, biotic resistance driven by predation was not ubiquitous but apparently targets one group of major economic and environmental impact. As a consequence, introduced barnacles were released from competition with dominant ascidians and thus the ecosystem service (biotic resistance) performed by fish alone was unable to completely avoid or control the introduction of non-native species. Control measures must rely on various approaches, but if we want fish to contribute in this control, it is very important to conserve the local native assembly of predators in order to reap their benefits in this ecosystem service.
Starting Page	3223
Ending Page	3237
Page Count	15
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	18
Issue Number	11
e-ISSN	15731464
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-07-18
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Marine fouling community Bioinvasion Ascidiacea Bryozoa Artificial substrates Biotic resistance Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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