2014
DOI: 10.1590/1982-0224-20140041
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Predictive factors of species composition of follower fishes in nuclear-follower feeding associations: a snapshot study

Abstract: We tested whether habitat, identity, size of nuclear fishes, and intensity of bottom disturbance caused by their foraging can predict the composition of fish followers in nuclear-follower feeding associations. The study was carried out in a stream of the Serra da Bodoquena, Mato Grosso do Sul State, Southwestern Brazil. We performed underwater observational sessions (total 12 h) of such interspecific interactions to obtain data about the identity and abundance of the followers in the association, as well as th… Show more

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Cited by 12 publications
(27 citation statements)
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“…The probability of occurrence in a reach by the follower L. octomaculatus increased significantly in the presence of the nuclear species L. friderici ; this represents evidence that small‐scale positive biotic interactions among fishes can have observable effects at larger spatial scales in freshwater systems (in this case, the reach scale). By contrast, and contrary to expectations based on the literature (Sabino et al., ; Teresa et al., ), model evidence supported the hypothesis that occurrence of the follower L. striatus was independent of the nuclear L. friderici . Feeding‐associative behaviour of L. octomaculatus with L. striatus is probably facultative and may only be advantageous in certain contexts (e.g.…”
Section: Discussioncontrasting
confidence: 96%
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“…The probability of occurrence in a reach by the follower L. octomaculatus increased significantly in the presence of the nuclear species L. friderici ; this represents evidence that small‐scale positive biotic interactions among fishes can have observable effects at larger spatial scales in freshwater systems (in this case, the reach scale). By contrast, and contrary to expectations based on the literature (Sabino et al., ; Teresa et al., ), model evidence supported the hypothesis that occurrence of the follower L. striatus was independent of the nuclear L. friderici . Feeding‐associative behaviour of L. octomaculatus with L. striatus is probably facultative and may only be advantageous in certain contexts (e.g.…”
Section: Discussioncontrasting
confidence: 96%
“…Based on field observations, we expected habitat use by L. striatus to be conditional to the presence of L. friderici , as L. striatus seemed to take advantage of the presence of L. friderici to forage. This is a common behaviour in mixed schools with anostomids in clear water streams and small rivers of Central Brazil (Sabino et al., ; Teresa et al., ). Our results suggest that co‐occurrence between L. striatus and L. friderici is more opportunistic and probably has little effect on habitat use or occurrence of L. striatus .…”
Section: Discussionmentioning
confidence: 99%
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“…There are also a number of fishes (and other fauna) in both marine and freshwater systems that are known to disrupt the benthos during feeding and are followed by fish that stand to gain from prey being flushed from hiding (Baker & Foster, ; Sazima et al, ; Teresa et al, ). In the past decade, there has been a steady increase in scientific interest in this form of behavioural interaction within freshwater ecosystems and notably in a tropical South American context (Azevedo et al, ; Costa‐Pereira, ; Garrone Neto & Carvalho, ; Sabino et al, ; Teresa et al, , ). This literature primarily addresses how disrupting soft benthos has the capacity to alter stream fish assemblages by exposing benthic prey for both nuclear and follower fishes, with ramifications for fish assemblage composition specifically as a function of conditions favouring particular nuclear and follower species (Baker & Foster, ; Sabino et al, ; Teresa et al, , ).…”
mentioning
confidence: 99%