28 documents found, page 1 of 3

New Additions to the Mammal List Documented in the Portuguese Red Data Book

This study outlines the procedures used for collecting, processing, and categorizing data on 16 new mammal species for mainland Portugal, belonging to four taxonomic groups: Eulipotyphla (1), Chiroptera (4), Rodentia (2), and Cetacea (9). Data collection and processing encompassed field and lab work and bibliographic compilation. Data categorization involves, whenever possible, the assessment of the approximate...

New Additions to the Mammal List Documented in the Portuguese Red Data Book

This study outlines the procedures used for collecting, processing, and categorizing data on 16 new mammal species for mainland Portugal, belonging to four taxonomic groups: Eulipotyphla (1), Chiroptera (4), Rodentia (2), and Cetacea (9). Data collection and processing encompassed field and lab work and bibliographic compilation. Data categorization involves, whenever possible, the assessment of the approximate...

Livro Vermelho dos Mamíferos de Portugal Continental

A publicação deste Livro Vermelho, o primeiro inteiramente dedicado aos mamíferos, teve a ambição de ir bastante além do seu objetivo central – avaliar o risco de extinção das espécies de Portugal Continental. Entre os objetivos suplementares deste projeto incluem-se: (i) compilar toda a informação existente sobre a ocorrência de mamíferos no território nacional, como dados museológicos, resultados de censos e ...

Livro Vermelho dos Mamíferos de Portugal Continental

Assessment of harbour porpoise bycatch along the Portuguese and Galician Coast:...

The Iberian harbour porpoise population is small and fisheries bycatch has been described as one of its most important threats. Data on harbour porpoise strandings collected by the Portuguese and Galician stranding networks between 2000 and 2020 are indicative of a recent mortality increase in the western Iberian coast (particularly in northern Portugal). Overall, in Portugal and Galicia, individuals stranded d...

Seabird abundance and distribution off western iberian waters estimated through...

Western Iberian waters are important migratory flyways, stopover sites, and wintering areas for several of the world’s seabird species. To describe seabird species composition, distribution, and abundance in these waters, we performed six aerial surveys in September and/or October of each year, 2010–2015, covering 74 840 km2. Using line transect methodology, 27 396 seabird sightings from 17 taxonomic groups wer...

Balearic shearwater and northern gannet bycatch risk assessment in Portuguese C...

Even though incidental captures in fisheries are one of the major threats to seabirds, bycatch has been difficult to quantify and specific risk areas are rarely identified. The present study evaluates the potential fisheries bycatch effect on two of the most emblematic seabird species wintering off continental Portugal, the critically endangered Balearic Shearwater and Northern Gannet. Information was collected...

Monitoring Abundance and Distribution of Northern Gannets Morus bassanus in Wes...

Several North Atlantic breeding seabirds, such as the Northern Gannet Morus bassanus, use Western Iberian Waters for wintering and migration. In this study, we aimed at producing absolute population estimates of post-breeding Gannets and evaluating the importance of the study area within the species’ migration range. We performed six aerial surveys in September and/or October each year between 2010 and 2015, co...

Stranding patterns and feeding ecology of striped dolphins, Stenella coeruleoal...

The striped dolphin, Stenella coeruleoalba, is one of the most abundant cetacean species off the Western Iberian coast, however, studies on the species regarding biology, ecology, threats or conservation efforts are lacking. This study investigates stranding patterns (years 1981–2014) and diet (2002–2014) of striped dolphins (Stenella coeruleoalba) off the Portuguese mainland coast. Stranded animals were sample...

Striped dolphins as trace element biomonitoring tools in oceanic waters: accoun...

In Europe, monitoring contaminant concentrations and their effects in the marine environment is required under the Marine Strategy Framework Directive (MSFD, 2008/56/EC). The striped dolphin (Stenella coeruleoalba) is the most abundant small cetacean species in Portuguese oceanic waters, representing a potential biomonitoring tool of contaminant levels in offshore waters. Concentrations of nine trace elements w...