The Coevolving Web of Life

One of the major goals for ecologists and evolutionary biologists is to understand how webs of species form, how they change in participants over time, and how they affect evolution. Describing the full pattern of connections within these webs is a daunting task. This study attempted to understand how species coevolve within large webs of mutualistic species.

Productivity in a German Osprey population

The Osprey is an emblematic example of conservation. Currently, the species is progressively recovering in population size and range after dramatic reductions as a consequence of human persecution and the use of pesticides in the nineteenth and twentieth centuries. Here, the population trend and productivity were analysed in relation to the nesting substrate and the protection status of the nest location.

Spatiotemporal dynamics of genetic variation in the Iberian lynx along its path to extinction reconstructed with ancient DNA

There is the tendency to assume that endangered species have been both genetically and demographically healthier in the past. The Iberian lynx suffered a dramatic and continuous decline during the 20th century. Ancient, historical, and contemporary samples with microsatellite and mitogenome data were analyzed to reconstruct the species' demography and investigate patterns of genetic variation across space and time.

The diet of the bottlenose dolphin described by stomach content and stable isotope analyses

The ecological role of species can vary among populations depending on local and regional differences in diet. This is particularly true for top predators such as the bottlenose dolphin, which exhibits a highly varied diet. Local dietary assessments are therefore critical to fully understand the role of this species within marine ecosystems. Here, stomach content analyses and stable isotope analyses were combined to describe bottlenose dolphins diet in the Gulf of Cadiz.