Food and vitamin D3 availability affects lizard personalities: an experiment

Horváth, Gergely; Martı́n, José; López, Pílar; Garamszegi, László Zsolt; Herczeg, Gábor

doi:10.1007/s00265-016-2257-1

Cited by 16 publications

(32 citation statements)

References 90 publications

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“…Repeatability of shelter use was moderate in the pooled sample, while it was significant only in the vitamin‐supplemented × corticosterone‐treated treatment group, consistency being particularly strong in this treatment (see Bell et al, for reference). This type of challenge‐triggered consistency is contrary to previous finding on wild‐caught adults of I. cyreni , where shelter use personality (estimated similarly to the present study) was detected only under optimal conditions (Horváth, Martín, et al, ). In the present approach, shelter use describes “general” (as opposed to movement) activity, as individuals spending more time hiding were regarded as less active (Koolhaas et al, ; Réale et al, ).…”

Section: Discussioncontrasting

confidence: 99%

“…Among the standard theories interpreting the emergence of interindividual behavioral variation, state dependence implies the role of individual state differences in creating behavioral consistencies (Bijleveld et al, ; Dall, Houston, & McNamara, ; Rands, Cowlishaw, Pettifor, Rowcliffe, & Johnstone, ; Sih et al, ). Recent empirical data suggest that not only inherently stable (e.g., gender, morphology; see Sih et al, ), but even labile state variables and/or short‐term differences in environmental conditions can shape behavioral consistency (DiRienzo, Niemelä, Hedrick, & Kortet, ; Horváth, Martín, López, Garamszegi, & Herczeg, ; Horváth, Mészáros, et al, ; Lichtenstein et al, ; Urszán, Garamszegi, et al, ; Urszán et al, ; Urszán, Török, Hettyey, Garamszegi, & Herczeg, ). Such variation can have particularly strong effects during early stages of ontogeny (Dingemanse et al, ; DiRienzo & Montiglio, ; Urszán et al, ), but they are also expected to create long‐lasting effects (DiRienzo, Niemelä, Skog, Vainikka, & Kortet, ; DiRienzo, Pruitt, & Hedrick, ; Krause, Krüger, & Schielzeth, ).…”

Section: Introductionmentioning

confidence: 99%

“…Here, we aimed to study how maternal diet and corticosterone treatment during early stages of life affect behavioral consistency of juvenile Carpetan rock lizards ( Iberolacerta cyreni ). As I. cyreni became one of the best studied reptiles during the past decades (Horváth et al, ; Horváth, Martín, et al, ; Martín & López, , ; Martín & Salvador, ), it is a suitable model for our purposes, because the results can be interpreted in a broad eco‐evolutionary context. To this end, we applied an orthogonal experimental design: (a) Gravid mothers were supplemented with either vitamin D 3 or sunflower oil control and (b) juveniles from each litter were randomly assigned to either corticosterone treatment or soybean oil control treatment.…”

Section: Introductionmentioning

confidence: 99%

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Maternal diet affects juvenile Carpetan rock lizard performance and personality

Horváth

Rodríguez‐Ruiz

Martı́n

et al. 2019

Ecology and Evolution

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Differences in both stable and labile state variables are known to affect the emergence and maintenance of consistent interindividual behavioral variation (animal personality or behavioral syndrome), especially when experienced early in life. Variation in environmental conditions experienced by gestating mothers (viz. nongenetic maternal effects) is known to have significant impact on offspring condition and behavior; yet, their effect on behavioral consistency is not clear. Here, by applying an orthogonal experimental design, we aimed to study whether increased vitamin D3 content in maternal diet during gestation (vitamin‐supplemented vs. vitamin control treatments) combined with corticosterone treatment (corticosterone‐treated vs. corticosterone control treatments) applied on freshly hatched juveniles had an effect on individual state and behavioral consistency of juvenile Carpetan rock lizards (Iberolacerta cyreni). We tested the effect of our treatments on (a) climbing speed and the following levels of behavioral variation, (b) strength of animal personality (behavioral repeatability), (c) behavioral type (individual mean behavior), and (d) behavioral predictability (within‐individual behavioral variation unrelated to environmental change). We found higher locomotor performance of juveniles from the vitamin‐supplemented group (42.4% increase), irrespective of corticosterone treatment. While activity personality was present in all treatments, shelter use personality was present only in the vitamin‐supplemented × corticosterone‐treated treatment and risk‐taking personality was present in corticosterone control treatments. Contrary to our expectations, behavioral type was not affected by our treatments, indicating that individual quality can affect behavioral strategies without affecting group‐level mean behavior. Behavioral predictability decreased in individuals with low climbing speed, which could be interpreted as a form of antipredator strategy. Our results clearly demonstrate that maternal diet and corticosterone treatment have the potential to induce or hamper between‐individual variation in different components of boldness, often in interactions.

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Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Maternal diet affects juvenile Carpetan rock lizard performance and personality

Horváth

Rodríguez‐Ruiz

Martı́n

et al. 2019

Ecology and Evolution

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“…() studying a wild population of collared flycatchers ( Ficedula albicollis ) demonstrated that strength and direction of behavioural correlations could change among years. In manipulative experiments, Horváth, Martín, López, Garamszegi, and Herczeg () and Horváth, Mészáros, et al. () showed that even short‐term manipulation of ecologically relevant environmental factors can “switch” animal personality and behavioural syndromes on and off in adult Carpetan rock lizards ( Iberolacerta cyreni ) or European green lizards ( Lacerta viridis ).…”

Section: Discussionmentioning

confidence: 99%

Experience during development triggers between‐individual variation in behavioural plasticity

Urszán

Garamszegi

Nagy

et al. 2018

Journal of Animal Ecology

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Behavioural consistency within and across behaviours (animal personality and behavioural syndrome, respectively) has been vigorously studied in the last decade, leading to the emergence of "animal personality" research. It has been proposed recently that not only mean behaviour (behavioural type), but the environmentally induced behavioural change (behavioural plasticity) might also differ between individuals within populations. While case studies presenting between-individual variation in behavioural plasticity have started to accumulate, the mechanisms behind its emergence are virtually unknown. We have recently demonstrated that ecologically relevant environmental stimuli during ontogeny are necessary for the development of animal personality and behavioural syndromes. However, it is unknown whether between-individual variation in behavioural plasticity is hard-wired or induced. Here, we tested whether experience with predation during development affected predator-induced behavioural plasticity in Rana dalmatina tadpoles. We ran a common garden experiment with two ontogenetic predation treatments: tadpoles developed from hatching in either the presence or absence of olfactory predator stimuli. Then, we assayed all tadpoles repeatedly for activity and risk-taking both in the absence and presence of olfactory predator stimuli. We found that (a) between-individual variation in predator-induced behavioural plasticity was present only in the group that developed in the presence of olfactory stimuli from predators and (b) previous experience with predatory stimuli resulted in lower plastic response at the group level. The latter pattern resulted from increased between-individual variation and not from universally lower individual responses. We also found that experience with predation during development increased the predictability (i.e. decreased the within-individual variation unrelated to environmental change) of activity, but not risk-taking. In line with this, tadpoles developing under perceived predatory risk expressed their activity with higher repeatability. We suggest that ecologically relevant environmental stimuli are not only fundamental for the development of animal personality and behavioural syndromes, but also for individual variation in behavioural plasticity. Thus, experience is of central importance for the emergence of individual behavioural variation at many levels.

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“…The repeatabilities ranged between 0.18 and 0.39 representing low‐to‐moderate consistency (see Bell et al., for a meta‐analysis). Recent studies (Horváth, Martín, López, Garamszegi, & Herczeg, ; Horváth, Mészáros, et al., ) showed that even short‐term environmental change has the potential to “switch” between‐individual variation in mean behaviour (i.e. animal personality and behavioural syndromes) on/off in adult animals.…”

Section: Discussionmentioning

confidence: 99%

Brain size predicts behavioural plasticity in guppies (Poecilia reticulata): An experiment

Herczeg

Urszán

Orf

et al. 2018

J of Evolutionary Biology

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Understanding how animal personality (consistent between‐individual behavioural differences) arises has become a central topic in behavioural sciences. This endeavour is complicated by the fact that not only the mean behaviour of individuals (behavioural type) but also the strength of their reaction to environmental change (behavioural plasticity) varies consistently. Personality and cognitive abilities are linked, and we suggest that behavioural plasticity could also be explained by differences in brain size (a proxy for cognitive abilities), since accurate decisions are likely essential to make behavioural plasticity beneficial. We test this idea in guppies (Poecilia reticulata), artificially selected for large and small brain size, which show clear cognitive differences between selection lines. To test whether those lines differed in behavioural plasticity, we reared them in groups in structurally enriched environments and then placed adults individually into empty tanks, where we presented them daily with visual predator cues and monitored their behaviour for 20 days with video‐aided motion tracking. We found that individuals differed consistently in activity and risk‐taking, as well as in behavioural plasticity. In activity, only the large‐brained lines demonstrated habituation (increased activity) to the new environment, whereas in risk‐taking, we found sensitization (decreased risk‐taking) in both brain size lines. We conclude that brain size, potentially via increasing cognitive abilities, may increase behavioural plasticity, which in turn can improve habituation to novel environments. However, the effects seem to be behaviour‐specific. Our results suggest that brain size likely explains some of the variation in behavioural plasticity found at the intraspecific level.

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Food and vitamin D3 availability affects lizard personalities: an experiment

Cited by 16 publications

References 90 publications

Maternal diet affects juvenile Carpetan rock lizard performance and personality

Maternal diet affects juvenile Carpetan rock lizard performance and personality

Experience during development triggers between‐individual variation in behavioural plasticity

Brain size predicts behavioural plasticity in guppies (Poecilia reticulata): An experiment

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