3 documents found, page 1 of 1
Situation of red-billed Leiothrix (Leiothrix lutea) in Europe and interactions ...
Pereira, Pedro; Godinho, Carlos; Roque, Inês; Rabaça, J.E.; Barbosa, Márcia; Salgueiro, Pedro; Silva, Rui; Lourenço, RuiDuring the last decades, the Asian-native red-billed leiothrix (Leiothrix lutea) has become established in Europe due to escapes or deliberate introductions. Despite a potential negative effect on ecosystems identified in other invaded regions, its situation in Europe and their potential effect on native birds are poorly known. We studied the behavioural and ecological relationships between leiothrix and the sp...
Prioritizing road defragmentation using graph-based tools
Ascensão, Fernando; Mestre, Frederico; Barbosa, MárciaRoads are a main cause of habitat fragmentation but mitigating the full road network is unfeasible. A key goal in the road mitigation planning process is to highlight, at the transportation network level, the most problematic roads, i.e. where mitigation measures are most required in order to maximize the benefits for biodiversity while keeping implementation costs as low as possible. Grounded on the concepts o...
gDefrag: A graph-based tool to help defragmenting landscapes divided by linear ...
Mestre, Frederico; Ascensão, Fernando; Barbosa, MárciaHabitat fragmentation is a major biodiversity threat. Linear infrastructures (e.g. roads) hamper the movement of individuals and cause non-natural mortality. Roadkill hotspots have been used to define priority areas for road effect mitigation, but data availability and reliability is an issue, particularly on wide spatial scales. Additionally, mitigating the whole infrastructure network is unfeasible. Expedite ...