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Percorrer por autor "Gil, Maria G."

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  • A curated dataset on the distribution of West Palaearctic freshwater bivalves
    Publication . Lopes-Lima, Manuel; Aldridge, David C.; Álvarez, María G.; Araujo, Rafael; Barea-Azcón, José Miguel; Bikashvili, Ani; Bragado, Dolores; Bylyna, Lilia; Carlevaro, Anna; Černecký, Ján; Cherot, Frédéric; Cichy, Anna; Collas, Frank; Csányi, Béla; Douda, Karel; Ercoli, Fabio; Fehér, Zoltán; Ferreira-Rodríguez, Noé; Froufe, Elsa; Geist, Juergen; Gil, Maria G.; Gołdyn, Bartłomiej; Golski, Janusz; Gomes-dos-Santos, André; Gumpinger, Clemens; Halabowski, Dariusz; Harbar, Olexander; Kamocki, Andrzej; Karaouzas, Ioannis; Labecka, Anna Maria; Lajtner, Jasna; Larsen, Bjørn Mejdell; Lavictoire, Louise; Lewin, Iga; Lipinskaya, Tatsiana; Madeira, M. José; Magerøy, Jon H.; Moorkens, Evelyn; Morales, Javier; Motte, Grégory; Mumladze, Levan; Nakamura, Keiko; Ondina, Paz; Österling, Martin; Outeiro, Adolfo; Ożgo, Małgorzata; Patzner, Robert A.; Paunovic, Momir; Pereira, Joana; Petkevičiūtė, Romualda; Prié, Vincent; Reis, Joaquim; Riccardi, Nicoletta; Richling, Ira; Romero, Rafael; Sablon, Rose; Sandaas, Kjell; Severijns, Nathal; Shevchuk, Larysa; Sîrbu, Ioan; Skawina, Aleksandra; Son, Mikhail O.; Sousa, Ronaldo; Spikkeland, Ingvar; Stanevičiūtė, Gražina; Stanicka, Anna; Stöckl, Katharina; Stunżėnas, Virmantas; Taskinen, Jouni; Teixeira, Amilcar; Thielen, Frankie; Timm, Henn; Todorov, Milcho; Tomović, Jelena; Tończyk, Grzegorz; Trichkova, Teodora; Urbanič, Gorazd; Urbańska, Maria; Väinölä, Risto; Varandas, Simone; Vercauteren, Thierry; Vicentini, Heinrich; Zając, Katarzyna; Zając, Tadeusz
    Freshwater bivalves (FWB) are attracting scientific and societal attention given their essential ecosystem services, ecological functions, and poor conservation status. Current knowledge of the spatial distribution of West Palearctic FWB is poor preventing the understanding of biogeography and conservation planning. One of the priorities of the pan-European networking project "CONFREMU - Conservation of freshwater mussels: a pan-European approach" funded by the European Union, was to fill the knowledge gap on the distribution of FWB in Europe and adjacent regions. Based on the efforts of this network of scientists, we provide the most complete, taxonomically, and geographically accurate distribution of FWB species for the entire West Palearctic. The dataset contains 270,287 geo-referenced records of 93 native and 8 non-native FWB from 1674 to 2023. The dataset compiles information from private records from 82 specialists and multiple sources (e.g., published articles, grey literature, biodiversity databases, and scientific collections). This dataset, available online, represents an important data source for future studies on the biodiversity, biogeography, and conservation of these important organisms.
    2025Artigo científico Acesso aberto Ver mais
  • The silent extinction of freshwater mussels in Portugal
    Publication . Lopes-Lima, Manuel; Reis, Joaquim; Alvarez, Maria G.; Anastácio, Pedro M.; Banha, Filipe; Beja, Pedro; Castro, Paulo S.; Gama, Mafalda; Gil, Maria G.; Gomes-dos-Santos, André; Miranda, Fernando Jorge Veloso; Nogueira, Joana Garrido; Sousa, Ronaldo; Teixeira, Amílcar; Varandas, Simone; Froufe, Elsa
    Freshwater mussels are one of the most threatened animal groups in the world. In the European Union, threatened and protected mussel species are not adequately monitored, while species considered to be common and widespread receive even less attention. This is particularly worrying in the Mediterranean region, where species endemism is high and freshwater habitats are severely affected by water scarcity. In the absence of hard data on population trends, we report here a long-term comparison of freshwater mussel assemblages at 132 sites covering 15 different hydrological basins in Portugal. This study reveals a widespread decline of 60 % in the number of sites and 67 % in the overall abundance of freshwater mussels across Portugal over the last 20 years, indicating that all species are rapidly declining and threatened with extinction. These results show that current legislation and conservation measures are largely ineffective and highlight the importance of updating the Habitats Directive to enforce standard monitoring protocols for threatened species in the European Union and to extend monitoring to other freshwater species thought to be common and widespread. Efficient water management, restrictions on irrigation expansion in important biodiversity areas, mitigation of hydrological changes and loss of aquatic habitat connectivity caused by physical alterations are urgently needed to reverse these declining population trends. For the severely endangered species Margaritifera margaritifera, Potomida littoralis, and Unio tumidiformis, where populations are now critically low, more urgent action is needed, such as ex-situ conservation, protection of remaining populations and large-scale habitat restoration.
    2023Artigo científico Acesso aberto Ver mais