Innate predator recognition and fright response in related populations of<i>Oncorhynchus mykiss</i>under different predation pressure

Scheurer, Julie A.; Berejikian, Barry A.; Thrower, Frank P.; Ammann, E; Flagg, Thomas A.

doi:10.1111/j.1095-8649.2007.01367.x

Cited by 19 publications

(20 citation statements)

References 44 publications

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“…The contextual behavioural response of agile frog larvae to dragonfly kairomone might thus be, to a large extent, innate (Lima and Dill, 1990;Scheurer et al, 2007;Epp and Gabor, 2008), as control tadpoles displayed the typical anti-predator behaviour upon their first postnatal experience with the odour of the predator (Fig. 2C,D).…”

Section: Discussionmentioning

confidence: 99%

Fear is the mother of invention: anuran embryos exposed to predator cues alter life-history traits, post-hatching behaviour, and neuronal activity patterns

Gazzola

Brandalise

Rubolini

et al. 2015

Journal of Experimental Biology

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Neurophysiological modifications associated to phenotypic plasticity in response to predators are largely unexplored, and there is a gap of knowledge on how the information encoded in predator cues is processed by prey sensory systems. To explore these issues, we exposed Rana dalmatina embryos to dragonfly chemical cues (kairomones) up to hatching. At different times after hatching (up to 40 days), we recorded morphology and anti-predator behaviour of tadpoles from control and kairomone-treated embryo groups as well as their neural olfactory responses, by recording the activity of their mitral neurons before and after exposure to a kairomone solution. Treated embryos hatched later and hatchlings were smaller than control siblings. In addition, the tadpoles from the treated group showed a stronger anti-predator response than controls at 10 days (but not at 30 days) post-hatching, though the intensity of the contextual response to the kairomone stimulus did not differ between the two groups. Baseline neuronal activity at 30 days post-hatching, as assessed by the frequency of spontaneous excitatory postsynaptic events and by the firing rate of mitral cells, was higher among tadpoles from the treated versus the control embryo groups. At the same time, neuronal activity showed a stronger increase among tadpoles from the treated versus the control group after a local kairomone perfusion. Hence, a different contextual plasticity between treatments at the neuronal level was not mirrored by the anti-predator behavioural response. In conclusion, our experiments demonstrate ontogenetic plasticity in tadpole neuronal activity after embryonic exposure to predator cues, corroborating the evidence that early-life experience contributes to shaping the phenotype at later life stages.

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Section: Discussionmentioning

confidence: 99%

Fear is the mother of invention: anuran embryos exposed to predator cues alter life-history traits, post-hatching behaviour, and neuronal activity patterns

Gazzola

Brandalise

Rubolini

et al. 2015

Journal of Experimental Biology

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“…Conversely, Scheurer et al (2007) provided strong support that fishes can respond to predators even though they have no prior experience with them. They tested F2 hatcheryreared offspring of steelhead trout originally collected from a stream population that contained Dolly Varden (S. malma, Salmonidae, a common predator of juvenile steelhead) and a lake population that was devoid of Dolly Varden.…”

Section: Learning Innate Responses and Neophobiamentioning

confidence: 99%

Learning about Danger: Chemical Alarm Cues and Threat‐Sensitive Assessment of Predation Risk by Fishes

Brown

Ferrari

Chivers

2011

Fish Cognition and Behavior

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Section: Introductionmentioning

confidence: 99%

“…Causal mechanisms that have been proposed to be responsible for the expression of early antipredator responses include genetic predisposition for predator recognition (Magurran 1990;Abj€ ornsson, Hansson & Br€ onmark 2004;Scheurer et al 2007), non-genetic maternal effects (Dzialowski et al 2003;Sheriff, Krebs & Boonstra 2010;Coslovsky & Richner 2011;Giesing et al 2011;McGhee et al 2012;, learning before (Mathis et al 2008;Colombelli-Negrel et al 2012) or shortly after birth (Brown, Ferrari & Chivers 2011) and the use of cues from the diet of predators (rev. in Ferrari et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Antipredator defences of young are independently determined by genetic inheritance, maternal effects and own early experience in mouthbrooding cichlids

Stratmann

Taborsky

2014

Functional Ecology

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Summary1. Predation is a prime force of natural selection. Vulnerability to predation is typically highest early in life, hence effective antipredator defences should work already shortly after birth. Such early defences may be innate, transmitted through non-genetic parental effects or acquired by own early experience. 2. To understand potential joint effects of these sources of antipredator defences on phenotypic expression, they should be manipulated within the same experiment. We investigated innate, parental and individual experience effects within a single experiment. Females of the African cichlid Simochromis pleurospilus were exposed to the offspring predator Ctenochromis horei or a benign species until spawning. Eggs and larvae were hand-reared, and larvae were then exposed to odour cues signalling the presence or absence of predators in a split-brood design. 3. Shortly after independence of maternal care, S. pleurospilus undergo a habitat shift from a deeper, adult habitat to a shallow juvenile habitat, a phase where young are thought to be particularly exposed to predation risk. Thus, maternal effects induced by offspring predators present in the adult habitat should take effect mainly shortly after independence, whereas own experience and innate antipredator responses should shape behaviour and life history of S. pleurospilus during the later juvenile period. 4. We found that the manipulated environmental components independently affected different offspring traits. (i) Offspring of predator-exposed mothers grew faster during the first month of life and were thus larger at termination of maternal care, when the young migrate from the adult to the juvenile habitat. (ii) The offspring's own experience shortly after hatching exerted lasting effects on predator avoidance behaviour. (iii) Finally, our results suggest that S. pleurospilus possess a genetically inherited ability to distinguish dangerous from benign species. 5. In S. pleurospilus, maternal effects were limited to a short but critical time window, when young undergo a niche shift. Instead, own environmental sampling of predation risk combined with an innate predisposition to correctly identify predators appears to prepare the young best for the environment, in which they grow up as juveniles.

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Innate predator recognition and fright response in related populations ofOncorhynchus mykissunder different predation pressure

Cited by 19 publications

References 44 publications

Fear is the mother of invention: anuran embryos exposed to predator cues alter life-history traits, post-hatching behaviour, and neuronal activity patterns

Fear is the mother of invention: anuran embryos exposed to predator cues alter life-history traits, post-hatching behaviour, and neuronal activity patterns

Learning about Danger: Chemical Alarm Cues and Threat‐Sensitive Assessment of Predation Risk by Fishes

Antipredator defences of young are independently determined by genetic inheritance, maternal effects and own early experience in mouthbrooding cichlids

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