Etiqueta: biodiversity

The map of biodiversity

Species richness is not homogeneous in space and it normally presents differences when comparing among different sites. These differences often respond to gradients in one or several factors which create biodiversity patterns in space and are scale-dependent.

What do we mean by diversity?

The concept of biological diversity has evolved from a simple count of species to more sophisticated measures that are sensitive to relative abundances and even to evolutionary divergence times between species. In the course of this evolution, diversity measures have often been borrowed from other disciplines.

Introduction: In praise of life

Els éssers humans ja fa temps que som conscients de ser una espècie amb gran poder per modificar el món natural. I tant que ho hem fet. Però només fa unes dècades que la societat, amb veu ferma, es revolta contra la desfeta duta a terme.

Biodiversity in the city, a necessary challenge?

Laura Villoria Parc de la Rambleta, in the San Marcelino neighbourhood in Valencia, is a reference for the conservation of local biodiversity. The climate change, pollution, deforestation or the loss of biodiversity are phenomena that have, for some time, been taken into account in the preparation of

Chameleon

In a group of islets in the North of Madagascar, a hitherto unknown chameleon species has been found whose adults barely reach 3 cm in length. This minuscule chameleon has the same bone arrangement as any gigantic crocodile.