Microhabitat conditions drive uncertainty of risk and shape neophobic responses in Trinidadian guppies, <i>Poecilia reticulata</i>

Feyten, Laurence E. A.; Ramnarine, Indar W.; Brown, Grant E.

doi:10.1002/ece3.10554

Cited by 3 publications

(3 citation statements)

References 130 publications

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“…Recently, Feyten et al . (2023) demonstrated that Trinidadian guppies from pools with high structural complexity showed significantly more risk‐averse behaviour than conspecifics from lower complexity pools. Presumably, any habitat characteristic that conceals information about the environment should lead to incomplete cues.…”

Section: Informational Limitationsmentioning

confidence: 99%

Uncertainty about predation risk: a conceptual review

Crane,

Feyten,

Preagola

et al. 2023

Biological Reviews

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Uncertainty has long been of interest to economists and psychologists and has more recently gained attention among ecologists. In the ecological world, animals must regularly make decisions related to finding resources and avoiding threats. Here, we describe uncertainty as a perceptual phenomenon of decision‐makers, and we focus specifically on the functional ecology of such uncertainty regarding predation risk. Like all uncertainty, uncertainty about predation risk reflects informational limitations. When cues are available, they may be novel (i.e. unknown information), incomplete, unreliable, overly abundant and complex, or conflicting. We review recent studies that have used these informational limitations to induce uncertainty of predation risk. These studies have typically used either over‐responses to novelty (i.e. neophobia) or memory attenuation as proxies for measuring uncertainty. Because changes in the environment, particularly unpredictable changes, drive informational limitations, we describe studies assessing unpredictable variance in spatio‐temporal predation risk, intensity of predation risk, predator encounter rate, and predator diversity. We also highlight anthropogenic changes within habitats that are likely to have dramatic impacts on information availability and thus uncertainty in antipredator decisions in the modern world.

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Section: Informational Limitationsmentioning

confidence: 99%

Uncertainty about predation risk: a conceptual review

Crane,

Feyten,

Preagola

et al. 2023

Biological Reviews

Self Cite

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“…However, the effects of habitat complexity may differ. Trinidadian guppies, for example, exhibit higher levels of perceived predation risk in highly structured microhabitats (Feyten, 2023), likely due to limitations of visual risk assessment. Another environmental factor is ambient light levels, resulting from either diel cycles or shading.…”

Section: Factors Driving Availability Of Ecological Informationmentioning

confidence: 99%

Ecological uncertainty and antipredator behaviour: an integrative perspective

Brown¹,

Godin²

2023

Front. Ethol.

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Due to its unforgiving nature, predation pressure exerts strong selection pressure on the behaviour of prey animals. As a result, prey are forced to balance the conflicting demands of successfully detecting and avoiding predators and the need to engage in other fitness-related activities such as foraging, mating and social behaviour. Here, we provide an overview of the role that individual predator avoidance decisions plays in constraining behavioural phenotypes and how past experience with risks shapes current (and future) trade-offs, physiological and life history investments. Critically, access to reliable risk assessment information allows prey to respond to spatially and temporally variable predation risks. Uncertainty of predation risks is expected to limit the ability of prey to make short- and longer-term adjustments responses to predation threats, potentially increasing the indirect costs of predation. We describe a ‘landscape of information’ in which prey rely on publicly available risk assessment information to reduce the uncertainty of predation risks associated with variable threats and the potential impact of natural and anthropogenic environmental factors which may limit information availability. Despite a long tradition of research into the antipredator trade-offs made by prey animals, there remain a number of important unanswered questions.

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“…The reef-driving behaviour of fish refers to the directional movement caused by their response to external stimuli [ 19 , 20 ]. Reef fish generally exhibit the instinctive behaviour of gathering around reefs, while their reef-driving behaviour is mainly characterized by first contact time [ 21 ], distribution rate [ 22 ], and related movement indicators [ 23 ]. First contact time can be quantified as the time initially needed for fish to approach a novel object, explained as the fear of fish towards new objects.…”

Section: Introductionmentioning

confidence: 99%

Habitat Enrichment Causes Changes in Fish Behavioural Characteristics: A Case Study of Sparus latus

Guo,

Chen,

Qin

et al. 2024

Biology

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To better understand the habitat preferences and behavioural ecology of Sparus latus, we performed an experiment using box-shaped reefs as habitat enrichment materials, allowing us to determine the behavioural strategies and drivers involved in the response to different enrichment structures. The results showed that the first contact time of S. latus was negatively correlated (Pearson’s correlation, p < 0.005) with the distribution rate in the artificial reef area. Enrichment structures affected the habitat preferences of S. latus, and there was a significant difference in the average distribution rate between the control and treatment groups (Adonis, p < 0.001). The opening ratio (Adonis, R2 = 0.36) explained the distribution difference of S. latus better than the opening shape (Adonis, R2 = 0.12). In the absence of an enrichment structure, S. latus remained more active during the daytime, exhibiting poor clustering, while in the presence of an enrichment structure, S. latus exhibited clustered movement at night. The opening ratio was negatively correlated with the average interindividual distance (Spearman’s correlation, p < 0.01) and showed a significant positive correlation with the average distribution rate in the reef area (Spearman’s correlation, p< 0.001), indicating that the reef opening ratio significantly affected the reef-tropism and clustering behaviours of S. latus. The light intensity was negatively correlated with the average distance moved, and the average speed (Spearman’s correlation, p < 0.05) was significantly positively correlated with the reef first contact time (Spearman’s correlation, p < 0.001), indicating that the light intensity affected the exploration and activity patterns of S. latus. These results provide a research basis for analysing the pattern and process of fish proliferation induced by artificial reef habitats

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Microhabitat conditions drive uncertainty of risk and shape neophobic responses in Trinidadian guppies, Poecilia reticulata

Cited by 3 publications

References 130 publications

Uncertainty about predation risk: a conceptual review

Uncertainty about predation risk: a conceptual review

Ecological uncertainty and antipredator behaviour: an integrative perspective

Habitat Enrichment Causes Changes in Fish Behavioural Characteristics: A Case Study of Sparus latus

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