Resource-dependent temporal changes in antipredator behavior of common toad (Bufo bufo) tadpoles

Kurali, Anikó; Pásztor, Katalin; Hettyey, Attila; Tóth, Zoltán

doi:10.1007/s00265-018-2503-9

Cited by 9 publications

(6 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This does not necessarily mean, however, that social information use was not present in the tutored collectives. Reduced activity can be a social cue for indicating predation threat in tadpoles [ 39 , 40 , 62 ], so it is possible that the behaviour of tutors did not provide adaptive information to conspecific observers in a foraging context, but their low activity level induced similar behavioural adjustments in others leading to the observed differences between the studied collective types. Alternatively, reduced activity of satiated conspecifics failed to decrease the time required for naive tadpoles to discover and feed from the presented food patch because the relative difference in activity did not make tutors conspicuous enough to others and thus were not recognized as social cue producers [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

“…This definition of moving was also applied to compare differences in activity between differently treated tadpoles in previous studies (e.g. [ 39 , 40 ]). Measuring the time when tadpoles were visible was necessary as in some recordings animals that swam close to the wall of the container got out of sight temporarily (time visible (mean ± s.d.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Tutors do not facilitate rapid resource exploitation in temporary tadpole aggregations

Tóth

Jaloveczki

2021

R. Soc. open sci.

Self Cite

View full text Add to dashboard Cite

The utilization of social cues is usually considered an important adaptation to living in social groups, but recent evidence suggests that social information use may be more prevalent in the animal kingdom than previously thought. However, it is debated whether such information can efficiently diffuse in temporary aggregations of non-grouping individuals where social cohesion does not facilitate information transmission. Here, we provide experimental evidence that a simple social cue, the movement of conspecifics in a structured environment affected individuals' spatial decisions in common frog ( Rana temporaria ) tadpoles and thereby facilitated the discovery rate of a novel food patch. However, this was true only in those tadpole collectives that consisted solely of untutored individuals. In those collectives where tutors with prior experience with the presented food type were also present, this social effect was negligible most probably due to the difference in activity between naive and tutor individuals. We also showed that the proportion of tadpoles that discovered the food patch was higher in the control than in the tutored collectives, while the proportion of feeding tadpoles was only marginally higher in the latter collectives. Our findings indicate that social information use can influence resource acquisition in temporary aggregations of non-grouping animals, but individual differences in satiety may hinder effective information spread associated with exploitable food patches.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Tutors do not facilitate rapid resource exploitation in temporary tadpole aggregations

Tóth

Jaloveczki

2021

R. Soc. open sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…For example, satiated individuals take less risk than food-deprived individuals, with many examples from birds (Heller and Milinski 1979;Tvardíková and Fuchs 2011;Bonter et al 2013), fish (Godin and Crossman 1994;Sogard and Olla 1996;Poulsen et al 2010) and insects (Nonacs and Dill 1990). Food level also affects the antipredator behavior of amphibian larvae (Horat and Semlitsch 1994;Anholt et al 1996;Anholt et al 2000;Whitham and Mathis 2000;Altwegg 2003;Carlson et al 2015;Kurali et al 2018). Although food availability and its effect on behavioral antipredator responses is well documented, there is a lack of studies investigating how other environmental factors may further interact with feeding history to shape threat-sensitive responses of animals.…”

Section: Introductionmentioning

confidence: 99%

Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian

Băncilă

Plăiaşu

Stănescu

et al. 2021

Behav Ecol Sociobiol

View full text Add to dashboard Cite

Understanding how long-term changes in environmental conditions influence the way that individuals cope with threats is essential in the context of behavioral adaptation to a rapidly changing world. However, little is known about the behavioral responses to predation risk for individuals that experienced different environmental conditions for extended periods of time, such as food levels and light conditions. In this experimental study, we tested whether previous long-term exposure to different food levels (low versus high) and light conditions (0-hour light versus 8-hour light) play a significant role in shaping the antipredator response (i.e., the probability of emerging from the refuge and the distance moved) to stimuli from caged larval dragonflies, in larvae of the fire salamander (Salamandra salamandra). Specifically, we quantified behavioral differences in the response to predation risk in larval salamanders that were reared in the laboratory for two months under controlled food and light conditions. The results of this study showed that the interaction between food level and light conditions affected the antipredator behavior of the larvae. Fire salamander larvae maintained at low food levels and in 8-hour light conditions emerged from the refuge with a higher probability (i.e., took more risk) than larvae maintained at high food levels and all other combinations of light conditions. Thus, our results highlight the complexity of antipredator responses, pointing attention to the fact that interactions among environmental factors are likely to determine the magnitude of antipredator response. Significance StatementFew studies have investigated the role of multiple environmental factors on the expression of predator-induced behavioral responses. Specifically, because no study has so far investigated the risk-taking behavior in individuals exposed to long-term, contrasting food levels and light conditions, we investigated this in amphibian larvae. We showed that environmental conditions interactively determined antipredator behavior. This highlights the importance of considering long-term environmental conditions experienced by an organism and their interactions when experimentally studying behavioral variation to adequately understand its expression in natural conditions.

show abstract

“…This response can occur within minutes [63]. Longer term exposure to such cues can cause an increase in refuge use [64,65], alter larval morphology [62], prompt the development of colour spots on the tail [66,67], and slow growth and development [68,69]. These effects are seen across venues from the laboratory to the field [70,71].…”

Section: Introductionmentioning

confidence: 99%

Tadpoles of hybridising fire-bellied toads (B. bombina and B. variegata) differ in their susceptibility to predation

2020

View full text Add to dashboard Cite

The role of adaptive divergence in the formation of new species has been the subject of much recent debate. The most direct evidence comes from traits that can be shown to have diverged under natural selection and that now contribute to reproductive isolation. Here, we investigate differential adaptation of two fire-bellied toads (Anura, Bombinatoridae) to two types of aquatic habitat. Bombina bombina and B. variegata are two anciently diverged taxa that now reproduce in predator-rich ponds and ephemeral aquatic sites, respectively. Nevertheless, they hybridise extensively wherever their distribution ranges adjoin. We show in laboratory experiments that, as expected, B. variegata tadpoles are at relatively greater risk of predation from dragonfly larvae, even when they display a predator-induced phenotype. These tadpoles spent relatively more time swimming and so prompted more attacks from the visually hunting predators. We argue in the discussion that genomic regions linked to high activity in B. variegata should be barred from introgression into the B. bombina gene pool and thus contribute to gene flow barriers that keep the two taxa from merging into one.

show abstract

Resource-dependent temporal changes in antipredator behavior of common toad (Bufo bufo) tadpoles

Cited by 9 publications

References 82 publications

Tutors do not facilitate rapid resource exploitation in temporary tadpole aggregations

Tutors do not facilitate rapid resource exploitation in temporary tadpole aggregations

Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian

Tadpoles of hybridising fire-bellied toads (B. bombina and B. variegata) differ in their susceptibility to predation

Contact Info

Product

Resources

About