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Article
Open AccessIndividual differences in dominance-related traits drive dispersal and settlement in hatchery-reared juvenile brown trout
Effective management of exploited populations is based on an understanding of population dynamics and evolutionary processes. In spatially structured populations, dispersal is a central process that ultimately...
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Article
Open AccessThe evolution of pueriparity maintains multiple paternity in a polymorphic viviparous salamander
The reduction in fecundity associated with the evolution of viviparity may have far-reaching implications for the ecology, demography, and evolution of populations. The evolution of a polygamous behaviour (e.g...
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Article
Open AccessNiche models at inter- and intraspecific levels reveal hierarchical niche differentiation in midwife toads
Variation and population structure play key roles in the speciation process, but adaptive intraspecific genetic variation is commonly ignored when forecasting species niches. Amphibians serve as excellent mode...
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Article
Evolutionary History and Not Heterochronic Modifications Associated with Viviparity Drive Head Shape Differentiation in a Reproductive Polymorphic Species, Salamandra salamandra
Identifying the evolutionary processes that underlie morphological variation at the intraspecific level is cornerstone for understanding the drivers of phenotypic diversity at higher macro-evolutionary scales....
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Article
Map** of quantitative trait loci for life history traits segregating within common frog populations
The evolution of complex traits is often shaped by adaptive divergence. However, very little is known about the number, effect size, and location of the genomic regions influencing the variation of these trait...
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Article
Ontogenetic reduction in thermal tolerance is not alleviated by earlier developmental acclimation in Rana temporaria
Complex life-histories may promote the evolution of different strategies to allow optimal matching to the environmental conditions that organisms can encounter in contrasting environments. For ectothermic anim...
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Article
Open AccessA rapid rate of sex-chromosome turnover and non-random transitions in true frogs
The canonical model of sex-chromosome evolution predicts that, as recombination is suppressed along sex chromosomes, gametologs will progressively differentiate, eventually becoming heteromorphic. However, the...
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Chapter and Conference Paper
Geometric Mechanics Applied to Tetrapod Locomotion on Granular Media
This study probes the underlying locomotion principles of earliest organisms that could both swim and walk. We hypothesize that properly coordinated leg and body movements could have provided a substantial ben...
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Article
Neighbouring populations, opposite dynamics: influence of body size and environmental variation on the demography of stream-resident brown trout (Salmo trutta)
In organisms such as fish, where body size is considered an important state variable for the study of their population dynamics, size-specific growth and survival rates can be influenced by local variation in ...
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Article
Larval life history and anti-predator strategies are affected by breeding phenology in an amphibian
Seasonal time constraints can pose strong selection on life histories. Time-constrained animals should prioritise fast development over predation risk to avoid unfavourable growing conditions. However, changes...
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Article
Constrained plasticity in switching across life stages: pre- and post-switch predators elicit early hatching
The timing of many life history events shows phenotypic plasticity in response to the risk of predation. Theory predicts that increased risk of mortality in an early stage should select for switching earlier, ...
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Article
Statistical analysis of structural compensatory growth: how can we reduce the rate of false detection?
Compensatory growth (CG) is a key issue in work aiming at a full understanding of the adaptive significance of growth plasticity and its carryover effects on life-history. The number of studies addressing evol...
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Article
Trade-offs across life stages: does predator–induced hatching plasticity reduce anuran post-metamorphic performance?
In species with complex life cycles hatching plasticity can provide an effective escape from egg predators, but theoretical studies predict a predation-risk trade-off across egg and larval stages. In this stud...
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Article
Factors determining tadpole vulnerability to predators: can prior experience compensate for a suboptimal shape?
We investigated the role of constitutive morphology and previous experience in predator avoidance in two anuran species associated with different larval habitats. In Rana temporaria, deeper tails and larger body ...
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Article
Microgeographic variation in metabolic rate and energy storage of brown trout: countergradient selection or thermal sensitivity?
We examined the influence of habitat size, growth opportunity, and the thermal conditions experienced during early development on the standard metabolic rate (SMR) of juvenile brown trout (Salmo trutta) from six ...
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Article
Effects of induced variation in anuran larval development on postmetamorphic energy reserves and locomotion
Anuran larvae exhibit high levels of phenotypic plasticity in growth and developmental rates in response to variation in temperature and food availability. We tested the hypothesis that alteration of developme...
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Article
Variation in digestive performance between geographically disjunct populations of Atlantic salmon: countergradient in passage time and digestion rate
European Atlantic salmon (Salmo salar) populations inhabit rivers from northern Portugal to northern Norway across a wide spectrum of environmental variability. To address whether single physical factors might le...
