81 documents found, page 1 of 9
Intrapopulation differences in biological traits and impacts in a highly invasi...
Alves, Henrique; Gonçalves, Diana; Nogueira, António Barbosa; Teixeira, Amilcar; Padilha, Janeide; Sousa, RonaldoIndividual variation assessments are essential to better understand population and community dynamics, as well ecosystem functioning. Although researchers have long recognized this aspect, only recently has evidence accumulated about the ecological importance of variation within species. The incorporation of individual variation provides an even more complete description of the effects a species may have on eco...
Trophic response of brown trout to signal crayfish invasion in a protected moun...
Matos, Matilde; Teixeira, Amilcar; Nogueira, António B.; Padilha, Janeide; Sousa, RonaldoWe investigated the dietary response of brown trout (Salmo trutta) to the invasion of the signal crayfish (Pacifastacus leniusculus) in the Baceiro River (Montesinho Natural Park, Portugal). We analyzed 1012 stomach contents across six sites (five invaded and one non-invaded) over the year of 2023. A total of 49 distinct dietary taxa were identified. Results reveal strong spatial and temporal variation in trout...
A curated dataset on the distribution of West Palaearctic freshwater bivalves
Lopes-Lima, Manuel; Aldridge, David C.; Álvarez, María G.; Araujo, Rafael; Barea-Azcón, José Miguel; Bikashvili, Ani; Bragado, Dolores; Bylyna, LiliaFreshwater 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 freshwa...
A global meta‐analysis of ecological functions and regulating ecosystem service...
Zieritz, Alexandra; Brian, Joshua I.; Sousa, Ronaldo; Aldridge, David C.; Atkinson, Carla L.; Douda, Karel; Vaughn, Caryn; Bespalaya, YuliaFreshwater bivalves are globally distributed, diverse, and common in benthic communities. Many taxa, par-ticularly in the most species-rich order, Unionida, are declining due to anthropogenic stressors, while a small number of non-native species have become increasingly abundant and widespread, commonly replacing nativebivalve assemblages. To understand how these global changes may impact ecosystems and people,...
Invasive dynamics of the signal crayfish Pacifastacus leniusculus in a protecte...
Carvalho, Francisco; Alves, Henrique; Pascoal, Cláudia; Castro, Paulo; Miranda, Fernando Jorge Veloso; Teixeira, Amílcar; Cássio, FernandaInvasive species have been drivers of biodiversity loss and functional changes in aquatic ecosystems, including in protected areas. Therefore, monitoring population invasion dynamics and biological traits is fundamental to better understand their ecological and economic impacts and for management actions development. We followed signal crayfish (Pacifastacus leniusculus) invasion in Rabaçal River upper reach at...
The complete mitochondrial genome of Potomida acarnanica (Kobelt, 1879)
Matos, Ana; Gomes-dos-Santos, André; Teixeira, Amílcar; Varandas, Simone; Sousa, Ronaldo; Karaouzas, Ioannis; Zogaris, Stamatis; Froufe, ElsaFreshwater mussels (Bivalvia, Unionida) play essential roles in the well-functioning of ecosystems, even providing essential services to humans. However, these bivalves face numerous threats (e.g. habitat loss and fragmentation, pollution, introduction of invasive species, and climate change) which have already led to the extinction of many populations. This underscores the need to fully characterize the biolog...
The role of adaptive resistance in a widespread freshwater mussel species
Santos, Rogério; Sousa, Ronaldo; Lopes-Lima, Manuel; Teixeira, AmílcarOrganism features, such as size, weight, sex and age, among others, can influence the success of parasitism. For species that depend on a host to complete their life cycle, such as freshwater mussels (Bivalvia, Unionida), understanding how these traits influence parasitism can help guide management actions aimed at improving their reproductive success, ultimately benefitting their conservation. In this study, t...
Joint species distribution models unveil co-occurrences between freshwater muss...
Silva, Janine P.; Goncalves, Duarte Vasconcelos; Garcia-Raventós, Aina; Lopes-Lima, Manuel; Varandas, Simone; Froufe, Elsa; Teixeira, AmílcarFreshwater mussels are among the most threatened taxa in the world, partially due to the dependence on fish hosts to complete their life cycle. Knowledge about the role of environmental and biotic drivers in determining mussels' distribution is currently lacking. We aimed to assess the role of environmental and biotic drivers in determining the distribution of mussels and their fish hosts and to test if co-occu...
A roadmap for the conservation of freshwater mussels in Europe
Sousa, Ronaldo; Zając, Tadeusz; Halabowski, Dariusz; Aksenova, Olga V.; Bespalaya, Yulia V.; Carvalho, Francisco; Castro, Paulo S.; Douda, KarelEurope has a long history of human pressure on freshwater ecosystems. As pressure continues to grow and new threats emerge, there is an urgent need for conservation of freshwater biodiversity and its ecosystem services. However, whilst some taxonomic groups, mainly vertebrates, have received a disproportionate amount of attention and funds, other groups remain largely off the public and scientific radar. Freshw...
Identifying freshwater priority areas for cross-taxa interactions
Nogueira, Joana Garrido; Lopes-Lima, Manuel; Beja, Pedro; Filipe, Ana Filipa; Froufe, Elsa; Gonçalves, Duarte V.; Silva, Janine P.; Sousa, RonaldoInformation about biotic interactions (e.g. competition, predation, parasitism, diseases, mutualism, allelopathy) is fundamental to better understand species distribution and abundance, ecosystem functioning, and ultimately guide conservation efforts. However, conservation planning often overlooks these important interactions. Here, we aim to demonstrate a new framework to include biotic interactions into Marxa...