Chemically Mediated Strategies to Counter Predation

Wisenden, Brian D.

doi:10.1007/978-0-387-22628-6_12

Cited by 73 publications

(70 citation statements)

References 167 publications

(119 reference statements)

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“…A wide range of animals learn to recognize predators from others, either indirectly through chemical cues of wounded individuals (Wisenden and Millard 2001;Wisenden 2003) or directly by observing experienced individuals interacting with predators (Curio et al 1978;Griffin et al 2000;Lönnstedt et al 2012), and both mechanisms may involve learning from conspecifics or heterospecifics (Curio et al 1978;Wisenden 2003;Magrath et al 2015). Previous studies showed that learning to recognize predators provides short-term survival benefits.…”

Section: Discussionmentioning

confidence: 99%

“…Animals have evolved different mechanisms to display appropriate antipredator responses (Wisenden 2003;Griffin 2004;Caro 2005;Hollén and Radford 2009). Some species have innate predator recognition, where individuals exhibit appropriate antipredator behaviors already during the first predator encounter in life (Curio 1993;Li 2002;Storm and Lima 2010).…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, individuals in many social species learn to respond appropriately to predators from other individuals (Caro 2005;Hollén and Radford 2009) or modify existing templates depending on the response of knowledgeable individuals (Cheney and Seyfarth 1980). Learned predator recognition is advantageous when species face a variety of risk of predation that can change in a short timescale (Wisenden 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Naive individuals can learn to recognize predators using chemical cues (i.e., the odor of injured conspecifics; Wisenden 2003) or when observing knowledgeable individuals interacting with predators, for example, during predator mobbing (Curio et al 1978;Graw and Manser 2007;Reader and Biro 2010). Nonhunting predators pose a low immediate risk to prey, and many species approach and mob them (Dugatkin and Godin 1992;Flasskamp 1994;Caro 2005).…”

Section: Introductionmentioning

confidence: 99%

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Naive Juveniles Are More Likely to Become Breeders after Witnessing Predator Mobbing

Griesser

Suzuki

2017

The American Naturalist

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Dryad data: http://dx.doi.org/10.5061/dryad.50m10.abstract: Responding appropriately during the first predatory attack in life is often critical for survival. In many social species, naive juveniles acquire this skill from conspecifics, but its fitness consequences remain virtually unknown. Here we experimentally demonstrate how naive juvenile Siberian jays (Perisoreus infaustus) derive a long-term fitness benefit from witnessing knowledgeable adults mobbing their principal predator, the goshawk (Accipiter gentilis). Siberian jays live in family groups of two to six individuals that also can include unrelated nonbreeders. Field observations showed that Siberian jays encounter predators only rarely, and, indeed, naive juveniles do not respond to predator models when on their own but do when observing other individuals mobbing them. Predator exposure experiments demonstrated that naive juveniles had a substantially higher first-winter survival after observing knowledgeable group members mobbing a goshawk model, increasing their likelihood of acquiring a breeding position later in life. Previous research showed that naive individuals may learn from others how to respond to predators, care for offspring, or choose mates, generally assuming that social learning has long-term fitness consequences without empirical evidence. Our results demonstrate a long-term fitness benefit of vertical social learning for naive individuals in the wild, emphasizing its evolutionary importance in animals, including humans.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Naive Juveniles Are More Likely to Become Breeders after Witnessing Predator Mobbing

Griesser

Suzuki

2017

The American Naturalist

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“…Early detection is the key to achieving such an advantage, which can translate into fitness benefits (Lima and Dill, 1990;. In aquatic ecosystems, where information between conspecifics and other species is mostly shared via chemical cues, olfaction is the dominant sensory system and all major groups of aquatic organisms, from protists to amphibians, display defensive behaviours upon detection of predator odour (kairomone) or alarm cues released by damaged and consumed prey (Laurila et al, 1997;Wisenden, 2003;Lass et al, 2005). These chemicals often invoke immediate behavioural responses (and, if prolonged in time, morphological and life-history trait modifications) functioning to reduce the chances of predation .…”

Section: Introductionmentioning

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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Chemical Cues That Indicate Risk of Predation

Wisenden¹

2014

Fish Pheromones and Related Cues

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Chemically Mediated Strategies to Counter Predation

Cited by 73 publications

References 167 publications

Naive Juveniles Are More Likely to Become Breeders after Witnessing Predator Mobbing

Naive Juveniles Are More Likely to Become Breeders after Witnessing Predator Mobbing

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

Chemical Cues That Indicate Risk of Predation

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