Alien macroinvertebrates in Croatian freshwaters

On the occurrence of Pinctada radiata (Mollusca: Bivalvia: Pteriidae), an alien species in Croatian waters

The family Pteriidae (Bivalvia: Pterioida), which includes the group of species known as “pearl oysters” comprises three genera, namely Pteria Scopoli, 1777, Pinctada röding, 1798 and electroma Stoliczka, 1871 (CLEMAM, 2008). This family is represented by three species (Pteria hirundo (Linné, 1758); Pinctada radiata (Leach, 1814) and electroma vexillum (Reeve, 1857)) in the Mediterranean accord...

Alien aquatics in Europe: assessing the relative environmental and socio- economic impacts of invasive aquatic macroinvertebrates and other taxa

Invasive alien aquatic species, including marine and freshwater macroinvertebrates, have become increasingly important in terms of both environmental and socio-economic impacts. In order to assess their environmental and economic costs, we applied the Generic Impact Scoring System (GISS) and performed a comparison with other taxa of invaders in Europe. Impacts were scored into six environmental...

Adaptive Diversity: Hormones and Metabolism in Freshwaters

Genes underlying the evolution of morphological traits have recently been identified in a number of model species. In the stickleback, the metabolic adaptations to a freshwater habitat have now been linked to a well-known hormonal system.

The alien hand syndrome: What makes the alien hand alien?

The alien hand syndrome is a deeply puzzling phenomenon in which brain-damaged patients experience their limb performing seemingly purposeful acts without their intention. Furthermore, the limb may interfere with the actions of their normal limb. We report a case of alien hand syndrome following a left medial frontal and corpus callosum ischemic lesion. From our clinical observations and the pa...

Alien hand sign or alien hand syndrome?