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  1. Article

    Open Access

    Urban Life Affects Differentiation and Phenotypic Variation but not Asymmetry in a Fully Terrestrial Salamander

    The environmental transformations associated with cities are expected to affect organisms at the demographic, phenotypic, and evolutionary level, often negatively. The prompt detection of stressed populations ...

    Lucía Alarcón-Ríos, Antigoni Kaliontzopoulou, David Álvarez… in Evolutionary Biology (2024)

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    Article

    Assessment of census (N) and effective population size (N e ) reveals consistency of N e single-sample estimators and a high N e /N ratio in an urban and isolated population of fire salamanders

    Amphibians are the most threatened vertebrates on Earth, and one of the main factors involved in their decline is the loss and fragmentation of their natural habitats. Contemporary urban development is a major...

    David Álvarez, André Lourenço, Daniel Oro… in Conservation Genetics Resources (2015)

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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 ...

    Albert Fernández-Chacón, Meritxell Genovart, David Álvarez, José M. Cano… in Oecologia (2015)

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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...

    Alfredo G. Nicieza, David Álvarez in Oecologia (2009)

  5. No Access

    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 ...

    David Álvarez, Alfredo G. Nicieza in Evolutionary Ecology (2006)

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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 ...

    David Álvarez, José M. Cano, Alfredo G. Nicieza in Evolutionary Ecology (2006)

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    Article

    Population trends and reproductive success of the European shag Phalacrocorax aristotelis on the Iberian Peninsula following the Prestige oil spill

    In 2003, immediately following the Prestige oil spill in Galicia, Spain, we studied the population trends and reproductive performance of European shags (Phalacrocorax aristotelis) at oiled and unoiled colonies. ...

    Alberto Velando, David Álvarez, Jorge Mouriño, Francisco Arcos… in Journal of Ornithology (2005)

  8. No Access

    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...

    David Álvarez, Alfredo G. Nicieza in Oecologia (2002)