Abstract In semi-arid environments, the effects of irregularly distributed rainfall, flow regulation and water inter-basin transfer enhance spread non-native fish to detriment native communities. River Segura, since 1980s number species has progressively increased, also because building facility connecting rivers Segura Tajo. With aim highlighting how man-driven changes in diversity communities...

Requalification of low-head ramped weirs through the addition substrates (retrofitting) has attracted attention in recent years. However, few studies are available on how this measure affects negotiation by fish. This study aimed to assess performance an experimental weir (3.00 m long with 10% slope; 0.30 head-drop) enhance passage a potamodromous cyprinid species, Iberian barbel (Luciobarbus b...

Although studies have addressed effects of abrupt transitions in habitat type (e.g., forest–clear-cut or forest–field edges) on amphibian movements, little is known about effects of more subtle habitat transitions on patterns of migration and habitat use in amphibians. We used radiotelemetry to study movement patterns of juvenile gopher frogs (Rana capito) emigrating from ponds that were surrou...

To cite: Ozyurek S, Guler F, Canbora K, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013009429 DESCRIPTION A 40-year-old woman presented to our orthopaedic clinic with left-sided wrist pain after falling. On physical examination, there was no limitation in range of motion of the wrist; however, flexion and extension were minimally painful. There was no ...

Cooperative co-evolution algorithms (CCEA) are a thriving sub-field of evolutionary computation. This class of algorithms makes it possible to exploit more efficiently the artificial Darwinist scheme, as soon as an optimisation problem can be turned into a co-evolution of interdependent sub-parts of the searched solution. Testing the efficiency of new CCEA concepts, however, it is not straightf...