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  1. Article

    Open Access

    Niche 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...

    Eduardo José Rodríguez-Rodríguez, Juan F. Beltrán, Miguel Tejedo… in Scientific Reports (2020)

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  2. No Access

    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...

    Urtzi Enriquez-Urzelai, Martina Sacco, Antonio S. Palacio, Pol Pintanel… in Oecologia (2019)

  3. No Access

    Article

    Limited gene flow and high genetic diversity in the threatened Betic midwife toad (Alytes dickhilleni): evolutionary and conservation implications

    Habitat fragmentation may involve a loss of genetic diversity and increments the vulnerability to species persistence. It could be a particular issue when coupled with other negative factors as the predicted c...

    Guilherme Dias, Juan Francisco Beltrán, Miguel Tejedo… in Conservation Genetics (2015)

  4. No Access

    Article

    Behavioral responses of the Iberian waterfrog, Pelophylax perezi (Seoane, 1885), to three nitrogenous compounds in laboratory conditions

    Several studies have assessed the effects of nitrogenous compounds on amphibian behavior. However, few have focused on the effects of their combination with other stressors or on the variation of the response ...

    Andrés Egea-Serrano, Miguel Tejedo, Mar Torralva in Ecotoxicology (2011)

  5. No Access

    Article

    Consequences of outbreeding on phenotypic plasticity in Drosophila mercatorum wings

    A multivariate morphometric investigation was conducted on wings of two parthenogenetic Drosophila mercatorum strains and offspring (F1) of crosses between these parthenogenetic strains with highly inbred sexual ...

    Kristian Krag, Hans Thomsen, Søren Faurby, Anders Kjærsgaard… in Evolutionary Ecology (2009)

  6. No Access

    Article

    Analysis of the Avoidance of Nitrogen Fertilizers in the Water Column by Juvenile Iberian Water Frog, Pelophylax perezi (Seoane, 1885), in Laboratory Conditions

    In an experiment carried out in the laboratory in beakers, the avoidance of ammonium chloride, isolated or combined with sodium nitrite and sodium nitrate, in aquatic habitat by froglets of Pelophylax perezi was ...

    Andrés Egea-Serrano, Miguel Tejedo… in Bulletin of Environmental Contamination an… (2008)

  7. No Access

    Article

    Absence of the trade-off between the size and number of offspring in the natterjack toad (Bufo calamita)

    A trade-off between size and number of offspring was not found for females of similar sizes of the natterjack toad (Bufo calamita). Moreover, for large females, clutches with higher number of eggs had larger eggs...

    Miguel Tejedo in Oecologia (1992)