their environment. Their physiology, distribution, species richness and even their mutation rates strongly correlate with the temperatures they experience in nature,” says Miguel Vences, co-author and professor of Evolutionary Biology at the Braunschweig University of Technology, Germany. The study used state-of-the-art DNA sequencing methods and fossil analysis to reconstruct the evolution of 262 species of lacértidae. “In Europe these animals have been the focus of hundreds of studies in recent years. Our new genomic analyzes finally determined how they are related to each other in evolutionary terms, and when they originated”, indicates Iker Irisarri, researcher at the Higher Research Council Scientific (CSIC). Investigating the past

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of the evolution of the lacértids showed that many Liechtenstein Email Lists of them originated in hot climates of the past. Since then they have adapted as the Earth has cooled, spreading to very cold regions in the process. “The history of non-tropical lacértids is one of persistence against cold. There has been no precedent for their evolution to cope with heat or dry conditions for millions of years,” says Katharina Valero, professor at the University of Hull, UK. United. “The lizards that are currently adapted to mountain environments in Mediterranean areas such as the Iberian Peninsula, where the warming of the climate is predicted to be especially intense, will face problems not only of reduction in the extension of favorable habitats, but also possibly of competition

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& Wollenberg Valero, KC 2019. Environmental temperatures shape thermal physiology as well as diversification and genome-wide substitution rates in lizards.Nature Communications (in press). The loss of biodiversity is one of the most worrying consequences of human-produced climate and environmental change, whose ecological repercussions go beyond the loss of species ‘per se’. The functioning of ecosystems can suffer alterations as a result of the loss of species, ultimately affecting phenomena as relevant as the availability of natural resources or the regulation of the climate. Rivers are among the ecosystems that suffer the greatest loss of biodiversity, but with largely unknown ecological consequences. A study carried out

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