Rapidly changing climates and habitats represent challenges faced by the majority of animal species on our planet, and are leading to rapid declines in global biodiversity. However, the degree to which behaviour is influenced by changing environmental cues is not well understood. Specifically, environmental cues that have been correlated with predator abundance or performance over evolutionary history may have significant effects on prey behaviour. In the present study, we investigated the role of water clarity on foraging activity in lake sturgeon (Acipenser fulvescens) in the absence of predators. Foraging activity was significantly higher during the night than the day and was higher in turbid environments versus clear environments, indicating that decreased turbidity alone, may in part drive anti-predator behaviour and constrain foraging activity. Future work exploring the interconnectedness of environmental cues and behavioural changes will help us better understand the many ways rapidly changing environments can influence behavioural ecological processes.
Managing phenotypic variability with genetic and environmental heterogeneity: adaptation as a first principle of conservation practice. — In:
Conservation biology: evolution in action (
CarrollS.P.FoxC.W., eds). Oxford University Press, New York, NY, p.
The implications of projected climate change for freshwater resources and their management. —
Hydrol. Sci. J.53:
Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms. —
Predators and prey lifestyles: an evolutionary overview. — In:
Predation: direct and indirect impacts on aquatic communities (
KerfootW.C.SihA., eds). New England University Press, Hanover, NH, p.
Evidence of circadian rhythm, oxygen regulation capacity, metabolic repeatability and positive correlations between forced and spontaneous maximal metabolic rates in Lake Sturgeon Acipenser fulvescens. —
PLoS ONE9: e94693.
A brief guide to model selection, multimodel inference and model averaging in behavioural ecology using Akaike’s information criterion. —
Behav. Ecol. Sociobiol.65:
Relative cost/benefit trade-off between cover-seeking and escape behaviour in an ancestral fish: the importance of structural habitat heterogeneity. —