Where do wintering cormorants in Europe come from – and does it matter?

Morten Frederiksen discusses conflicts between wintering cormorants and fisheries, following the recent article, Where do wintering cormorants come from? Long-term changes in the geographical origin of a migratory bird on a continental scale. Cormorants are very efficient predators of fish in shallow waters. They are particularly good at exploiting artificially high densities of fish. Predictably, this has led to widespread conflicts with human fisheries interests. Although fishermen … Continue reading Where do wintering cormorants in Europe come from – and does it matter?

Managing non-native species and building a risk assessment checklist

Helen Roy discusses her recent Policy Direction, Developing a framework of minimum standards for the risk assessment of alien species and the challenges of producing a 14-step checklist for quality assurance in invasive species risk assessment. The dramatic rise in numbers of non-native species worldwide is increasingly recognised as problematic. While some non-native species have minimal effects on biodiversity*, and a few may be beneficial, about … Continue reading Managing non-native species and building a risk assessment checklist

A prioritised list of invasive alien species of EU concern

Focusing on invasive species management, Carles Carboneras comments on the recent Policy Direction, A prioritised list of invasive alien species to assist the effective implementation of EU legislation, published in Journal of Applied Ecology and recently featured by BBC News. Alien organisms can cause significant disruption when introduced into a new environment and, for that reason, effective policies on invasive species aim at preventing their … Continue reading A prioritised list of invasive alien species of EU concern

Editor’s choice 54:4 – The identification of critical catchments for freshwater conservation

Issue 54:4’s Editor’s Choice post is written by Shelley Arnott. The article chosen is Critical catchments for freshwater biodiversity conservation in Europe: identification, prioritisation and gap-analysis by Savrina F. Carrizo and colleagues. Aquatic ecosystems around the world are threatened with environmental changes resulting in critical loss of biodiversity; 81% of freshwater populations monitored for the Living Planet Index have declined in abundance between 1970 and … Continue reading Editor’s choice 54:4 – The identification of critical catchments for freshwater conservation