Torrente de drenaje asociado a un campo paredado de Deià durante el temporal
Neglected lands, abandoned countryside and erosion. The effect that land abandonment has on soil erosion is reviewed by the author, supported by his research which spans
Foto: M. Domínguez El abandono del mundo rural durante el siglo, XX y especialmente en la segunda mitad, ha sido una constante en el ámbito del mediterráneo.
Persistent organic pollutants and their accumulation in the biosphere. The manufacture and use, since 1940, of a
| Oceans and global change. The oceans cover two thirds of © A. AguilellaSalaria fluviatilis, babosa de rio. Which fish are to be found in the Mediterranean rivers? A rich and diverse Change climate, change life. The available data on climate indicate that the Earth is indeed warming. This global Arqueas. Organismos procariotas que suelen encontrarse en hábitats extremos (alta temperatura, presión y/o salinidad) y que constituyen, junto con bacterias y eucariotas, uno de los tres What about the other genomes? 1995 saw the publication of the first complete genome sequences of prokaryotic cells and a year later the first sequences of an eukaryotic organism were The genome and the complexity of living beings. The genome of an organism is the total dna content of its cells, including genes and intergenic regions. In prokaryotes (Archaea and The biology of “sex-appeal”: mate selection in humans. Until recently, it was thought that standards for physical El punto de no retorno: presente y futuro de la sexualidad humana. Actualmente, la selección natural continúa influyendo en las poblaciones humanas, condicionando nuestra forma de ser y nuestro comportamiento. Homosexual behaviour in humans: What do studies with primates show? Despite its wide diffusion, homosexual behaviour Post-copulatory sex selection: sperm competitiveness and selection. In the last 20 years research into the reproductive La alta producción de espermatozoides por parte de los machos, en comparación con el número relativamente bajo Plant sexuality. Plant sexuality is much more complex than we could have imagined The absence of movement Cópula de dos lagartijas ibéricas (Podarcis hispanica). Durante la cópula el riesgo de ser depredado es alto, El sexo es un tema de trascendental importancia en nuestras vidas por muchas razones diferentes. La más evidente es que todos nosotros existimos como consecuencia de las relaciones sexuales que Cork: the natural guardian of wines. The cork oak (Quercus suber) covers its trunk and branches Wine: food, drug or medicine perhaps? In this article the author looks at the many beneficial effects of Innovative oenological biotechnology. In recent years, many winemakers have started to use pure wine yeast strains to Plant heritage: vine varieties. The vineyards of Catalunya and Valencia posses a heritage of vine varieties, in Wine: culture and economy. Above all, wine is a food product, which, on gaining commercial importance, has |
