Exploring novelty: a component trait of behavioural syndromes in a colonial fish

Martins, Catarina I.M.; Schaedelin, Franziska C.; Mann, Marlene; Blum, Christian R.; Mandl, Isabella; Urban, Damaris; Grill, Johannes; Schößwender, Julia; Wagner, Richard H.

doi:10.1163/156853912x634430

Cited by 19 publications

(9 citation statements)

References 33 publications

(47 reference statements)

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“…One might expect to observe behavioural differences related to divergent life‐history strategies which have been shaped by distinct selection pressures on each of the sexes ( e.g ., Martins et al ., 2012). If these differences between the sexes manifest in behavioural traits such as boldness and movement, sex may play an important role in the invasion process.…”

Section: Discussionmentioning

confidence: 99%

Boldness, movement and exploration tendency in round goby (Neogobius melanostomus) in Southern Ontario

Yeung

Klemet-N'Guessan

Hossie

et al. 2023

Journal of Fish Biology

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Invasive species have the potential to damage ecosystems outside their native range. At an invasion front, individuals are faced with the unfamiliar conditions of a novel environment. Therefore, certain behavioural traits such as boldness and movement likely play a role in invasion ecology. If behavioural traits of this kind are influenced by differing selection pressures between demographic groups of the same species, this could have broad implications for the management of expanding invasion fronts. To determine whether the invasive round goby (Neogobius melanostomus, Pallas, 1814) exhibits sex‐ and habitat‐based differences in boldness and movement across the invasion front, the authors assessed individual movement and exploration tendency under controlled lab settings using video analysis in a behavioural assay. N. melanostomus from lakes tended to be bolder than those from streams, and females tended to be bolder than males. This study provides evidence for sex‐ and habitat‐based differences in behaviour in this globally invasive species that the authors hope will assist in forming the foundation for contextually appropriate management strategies.

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Section: Discussionmentioning

confidence: 99%

Boldness, movement and exploration tendency in round goby (Neogobius melanostomus) in Southern Ontario

Yeung

Klemet-N'Guessan

Hossie

et al. 2023

Journal of Fish Biology

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“…Often, some individuals will show weak or even no neophobic responses (e.g. [27,28]). However, observations of high levels of neophobia are repeatable and can correlate across contexts (e.g.…”

Section: Predator Neophobia Overviewmentioning

confidence: 99%

Patterns of predator neophobia: a meta-analytic review

Crane

Ferrari

2017

Proc. R. Soc. B.

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Neophobia, the fear of novel stimuli, plays a major role in animal ecology. Here, we review studies on predator neophobia and explore its underlying patterns within an ecological framework. Predator neophobia is typically assessed by observing behaviours in novel areas that bring potential risk from unknown predators, or by observing behaviours towards certain kinds of objects and odours that are novel. We conducted a literature review across taxa, surveying research on baseline and induced neophobia versus controls. We calculated effect sizes for the intensity of neophobic responses, and categorized data according to six factors (taxa, age class, background type, trophic position, test cue type and experimental treatment type). While accounting for each of the other factors, we found that baseline neophobia was stronger among birds and mammals, and towards novel areas, relative to other taxa and cue types. Baseline neophobia was lower for wild-caught animals and for those that were higher in trophic position, compared with those reared in captivity and from lower trophic levels. By contrast, induced neophobia was similar in intensity across taxa, background types and testing cue types, while again being lower among upper trophic-level members and among juvenile animals. Although induced neophobia occurred across all treatment types, brain lesions induced stronger neophobia than predation risk or social isolation. We discuss potential mechanisms underlying these results and highlight gaps in the literature.

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“…-Exploration-avoidance measurement using the novel-object test: several studies have assessed the individual consistency in exploratory behavior of sh using the novel-object test 34,35 . In our tests, a small colored toy animal gure was introduced into the aquarium to test the exploration-avoidance of the individual exposed to the presence of the new item (Table 1).…”

Section: Standardized Behavioral Testsmentioning

confidence: 99%

Disparate behavioral types in wild and reared juveniles of gilthead seabream

Sanllehi¹,

Signaroli²,

Pons³

et al. 2023

Preprint

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Fish differ consistently in behavior within the same species and population, reflecting distinct behavioral types (BTs). Comparing the behavior of wild and reared individuals provides an excellent opportunity to delve into the ecological and evolutionary consequences of BTs. In this work, we evaluated the behavioral variation of wild and reared juvenile gilthead seabreams, Sparus aurata, a highly relevant species for aquaculture and fisheries. We quantified behavioral variation along the five major axes of fish behavioral traits (exploration-avoidance, aggressiveness, sociability, shyness-boldness, and activity) using standardized behavioral tests and a deep learning tracking algorithm for behavioral annotation. Results revealed significant repeatability in all five behavior traits, suggesting high consistency of individual behavioral variation across the different axes in this species. We found reared fish to be more aggressive, social and active compared to their wild conspecifics. Reared individuals also presented less variance in their aggressiveness, lacking very aggressive and very tame individuals. Phenotypic correlation decomposition between behavioral types revealed two different behavioral syndromes: exploration-sociability and exploration-activity. Our work establishes the first baseline of repeatability scores in wild and reared gilthead seabreams, providing novel insight into the behavior of this important commercial species with implications for fisheries and aquaculture.

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Exploring novelty: a component trait of behavioural syndromes in a colonial fish

Cited by 19 publications

References 33 publications

Boldness, movement and exploration tendency in round goby (Neogobius melanostomus) in Southern Ontario

Boldness, movement and exploration tendency in round goby (Neogobius melanostomus) in Southern Ontario

Patterns of predator neophobia: a meta-analytic review

Disparate behavioral types in wild and reared juveniles of gilthead seabream

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