Evolution and behavioural responses to human‐induced rapid environmental change

Evolutionary Applications, Journal Year: 2011, Volume and Issue: 4(2), P. 367 - 387

Published: Feb. 17, 2011

Abstract Almost all organisms live in environments that have been altered, to some degree, by human activities. Because behaviour mediates interactions between an individual and its environment, the ability of behave appropriately under these new conditions is crucial for determining their immediate success or failure modified environments. While hundreds species are suffering dramatically from environmental changes, others, such as urbanized pest species, doing better than ever. Our goal provide insights into explaining variation. We first summarize responses novel situations, including risks resources, habitat loss/fragmentation, pollutants climate change. Using a sensory ecology approach, we present mechanistic framework predicting variation behavioural change, drawing models decision‐making processes understanding selective background against which they evolved. Where inadequate, learning evolutionary adaptation may prove useful, although mechanisms also constrained history. Although change difficult, highlight need role history shaping individuals’ environment suggestion future work.

Language: Английский

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RETRACTED: Environmentally relevant concentrations of microplastic particles influence larval fish ecology

Science, Journal Year: 2016, Volume and Issue: 352(6290), P. 1213 - 1216

Published: June 2, 2016

The widespread occurrence and accumulation of plastic waste in the environment have become a growing global concern over past decade. Although some marine organisms been shown to ingest plastic, few studies investigated ecological effects on animals. Here we show that exposure environmentally relevant concentrations microplastic polystyrene particles (90 micrometers) inhibits hatching, decreases growth rates, alters feeding preferences innate behaviors European perch (Perca fluviatilis) larvae. Furthermore, individuals exposed microplastics do not respond olfactory threat cues, which greatly increases predator-induced mortality rates. Our results demonstrate operate both chemically physically larval fish performance development.

Language: Английский

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Studying the evolutionary ecology of cognition in the wild: a review of practical and conceptual challenges

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2015, Volume and Issue: 91(2), P. 367 - 389

Published: Jan. 28, 2015

ABSTRACT Cognition is defined as the processes by which animals collect, retain and use information from their environment to guide behaviour. Thus cognition essential in a wide range of behaviours, including foraging, avoiding predators mating. Despite this pivotal role, evolutionary shaping variation cognitive performance among individuals wild populations remain very poorly understood. Selection experiments captivity suggest that traits can have substantial heritability undergo rapid evolution. However only handful studies attempted explore how influences life‐history fitness wild, direct evidence for action natural or sexual selection on still lacking, reasons are diverse. Here we review current literature with view to: ( i ) highlighting key practical conceptual challenges faced field; ii describing define measure populations, suggesting species, might be examined greatest effect; emphasis placed selecting linked functional behaviour; iii discussing deal confounding factors such personality motivation field well captive studies; iv interpret relationships between performance, behaviour fitness, offering some suggestions when what kind predicted; v showing an ecological framework, more generally, along innovative technologies has potential revolutionise study wild. We conclude ecology rapidly expanding interdisciplinary providing many opportunities advancing understanding abilities evolved.

Language: Английский

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Intrageneric variation in antipredator responses of coral reef fishes affected by ocean acidification: implications for climate change projections on marine communities

Global Change Biology, Journal Year: 2011, Volume and Issue: 17(9), P. 2980 - 2986

Published: April 11, 2011

Abstract Our planet is experiencing an increase in the concentration of atmospheric carbon dioxide (CO 2 ) unprecedented past 800 000 years. About 30% excess CO absorbed by oceans, thus increasing carbonic acid and reducing ocean's pH. Species able to survive physiological stress imposed ocean acidification may still suffer strong indirect negative consequences. Comparing tolerance different species dissolved a necessary first step towards predicting ecological impacts rising levels on marine communities. While it intuitive that not all aquatic will be affected same way , one could predict closely related species, sharing similar life histories ecology, show . ability create functional groups according their crucial our community change future. Here, we tested effects exposure antipredator responses four damselfish ( Pomacentrus chrysurus, moluccensis, amboinensis nagasakiensis ). Although being sympatric ecology history, congeneric showed striking unexpected variation tolerance, with ‐induced loss response predation risk ranging from 95%. Using P. chrysurus as model further if these behavioural differences translated into differential predators under natural conditions. results indicate larvae raised predicted 2070 2100 decreased risk, leading five‐ sevenfold predation‐related mortality few hours settlement. Examining acidification, along other environmental variables, critical evaluating climatic change.

Language: Английский

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Impaired learning of predators and lower prey survival under elevated CO₂: a consequence of neurotransmitter interference

Global Change Biology, Journal Year: 2013, Volume and Issue: 20(2), P. 515 - 522

Published: June 13, 2013

Ocean acidification is one of the most pressing environmental concerns our time, and not surprisingly, we have seen a recent explosion research into physiological impacts ecological consequences changes in ocean chemistry. We are gaining considerable insights from this work, but further advances require greater integration across disciplines. Here, showed that projected near-future CO2 levels impaired ability damselfish to learn identity predators. These effects stem neurotransmitter function; learning under elevated was reversed when fish were treated with gabazine, an antagonist GABA-A receptor - major inhibitory brain vertebrates. The on link interference manifested as differences survival for released wild. Lower , result learning, could influence population recruitment.

Language: Английский

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Ocean Acidification Affects Prey Detection by a Predatory Reef Fish

PLoS ONE, Journal Year: 2011, Volume and Issue: 6(7), P. e22736 - e22736

Published: July 28, 2011

Changes in olfactory-mediated behaviour caused by elevated CO2 levels the ocean could affect recruitment to reef fish populations because larval become more vulnerable predation. However, it is currently unclear how will impact other key part of predator-prey interaction – predators. We investigated effects and reduced pH on olfactory preferences, activity feeding a common coral meso-predator, brown dottyback (Pseudochromis fuscus). Predators were exposed either current-day or one two (∼600 µatm ∼950 µatm) that may occur 2100 according climate change predictions. Exposure shift from preference avoidance smell injured prey, with treated predators spending approximately 20% less time water stream containing prey odour compared controls. Furthermore, was higher high treatment lower for mid treatment; indicating future conditions potentially reduce ability respond rapidly fluctuations food availability. Elevated treatment, however, compensate ability, as greater movement facilitated visual detection food. Our findings show that, at least species tested date, both parties relationship be affected acidification. Although impairment might risk predation fishes, magnitude observed acidification appear dramatic Thus, unlikely altered sufficient fully mortality.

Language: Английский

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High CO2 and marine animal behaviour: Potential mechanisms and ecological consequences

Marine Pollution Bulletin, Journal Year: 2012, Volume and Issue: 64(8), P. 1519 - 1528

Published: June 27, 2012

Language: Английский

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Marine chemical ecology in benthic environments

Natural Product Reports, Journal Year: 2010, Volume and Issue: 28(2), P. 345 - 387

Published: Dec. 1, 2010

Covering: 2008 up to the beginning of 2010

Language: Английский

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Naïveté in novel ecological interactions: lessons from theory and experimental evidence

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2014, Volume and Issue: 89(4), P. 932 - 949

Published: Feb. 7, 2014

The invasion of alien species into areas beyond their native ranges is having profound effects on ecosystems around the world. In particular, novel predators are causing rapid extinctions or declines in many prey species, and these impacts generally attributed to ecological naïveté failure recognise a enemy respond appropriately due lack experience. Despite large body research concerning recognition predation risk by prey, literature lacks an extensive review theory that specifically asks how between pairings disrupts our classical understanding predator-prey theory. Here we critically both classic current relating interactions with shared evolutionary histories, those ecologically 'mismatched' through outcomes biological invasions. structured multiple levels framework Banks & Dickman (2007), concepts examples discussed as they relate each stage process from predator (Level 1 naïveté), appropriate 2) effective 3) antipredator responses. We discuss relative contributions recognition, cue types implied cues used familiar predators, probability will predator. then cover response available factors predict whether responses be against predators. general, level can predicted degree novelty (in terms appearance, behaviour habitat use) compared which experienced. Appearance this sense includes types, spatial distribution cues, whilst use include hunting modes domain Finally, occur without per se, for example case morphological defences, consider potential extension framework. concludes recommendations design execution experiments incorporating key issues covered here. This aims critique combine ideas about theory, further develop framework, suggest most fruitful avenues future research.

Language: Английский

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Effects of Ocean Acidification on Learning in Coral Reef Fishes

PLoS ONE, Journal Year: 2012, Volume and Issue: 7(2), P. e31478 - e31478

Published: Feb. 6, 2012

Ocean acidification has the potential to cause dramatic changes in marine ecosystems. Larval damselfish exposed concentrations of CO2 predicted occur mid- late-century show maladaptive responses predator cues. However, there is considerable variation both within and between species effects, whereby some individuals are unaffected at particular while others odour. Our goal was test whether learning via chemical or visual information would be impaired by ocean ultimately, can mitigate effects restoring appropriate prey predators. Using two highly efficient widespread mechanisms for learning, we compared behaviour pre-settlement Pomacentrus amboinensis that were 440 µatm (current day levels) 850 CO2, a concentration before end this century. We found that, regardless method elevated failed learn respond appropriately common predator, dottyback, Pseudochromis fuscus. To determine lack response due failure rather short-term shift trade-offs preventing fish from displaying overt antipredator responses, conditioned 700 µatm-CO2 recognize dottyback as using injured conspecific cues, Experiment 1. When tested one post-conditioning, 5 days still an odour, despite fact control CO2-treated responded general risk cue (injured cues). These results indicate exposure may alter cognitive ability juvenile render ineffective.

Language: Английский

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