88 documents found, page 1 of 9
Population-specific phenotypic plasticity of endangered bivalves in response to...
Gomes-dos-Santos, André; Lopes-Lima, Manuel; Silva, Beatriz; Machado, André M.; Pinto, Rui; Österling, Martin; Wallerius, Magnus Lovén; Urbańska, MariaFreshwater mussels are among the most endangered animal groups, highly sensitive to climate change due to their strict dependence on freshwater habitats. While freshwater mussels are often considered ecologically strict, their distribution across broad environmental gradients raises the possibility of population-specific adaptations mediated by phenotypic plasticity. This study investigates whether geographical...
Molecular insights into spined loaches (Cobitidae: Cobitis) reveal the complex ...
Perdices, Anabel; Queirós, João; Alves, Maria Judite; Alves, Paulo Célio; Beja, Pedro; Buckley, David; Clavero, Miguel; Coelho, Maria ManuelaPalaeogeographic and tectonic rearrangements of rivers have significantly influenced the phylogeography of Iberian and North African freshwater fishes, but their impact remains unclear. We revisit the phylogeographic relationships and diversification timelines of Cobitis (spined loaches, family Cobitidae) on both sides of the Strait of Gibraltar. Sampling 230 sites across 41 river basins, we analysed genetic va...
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...
Subtle ecological effects of the invasive signal crayfish (Pacifastacus leniusc...
Oliveira, Bruno; Nogueira, António B.; Teixeira, Amilcar; Sousa, RonaldoThe introduction of non-native species can disrupt the structure of communities and affect the functioning of freshwater ecosystems, disturbing various taxonomic groups, including fish. This study aimed to assess the ecological effects of the recent introduction of the signal crayfish <jats:italic>Pacifastacus leniusculus</jats:italic> in the fish communities in the Rabaçal and Tuela River basins (Montesinho Na...
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...
Interspecific differences in the physiological condition of native freshwater m...
Modesto, Vanessa; Ilarri, Martina; Castro, Paulo; Carvalho, Francisco; Cavalheri, Thais; Lopes-Lima, Manuel; Teixeira, Amílcar; Ozorio, Rodrigo O.A.The Asian clam Corbicula fluminea has been widely introduced into aquatic ecosystems and may impact the physiological condition and survival of native freshwater mussels. However, very few studies have evaluated this issue quantitatively. To fill this gap, manipulative field experiments were performed to assess two possible mechanisms of impact on native mussels: (i) interspecific interactions, and (ii) C. flum...
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...
Differential elemental accumulation of the signal crayfish (Pacifastacus lenius...
Gonçalves, Diana; Sousa, Ronaldo; Souza-Kasprzyk, Juliana; Niedzielski, Przemyslaw; Teixeira, Amilcar; Padilha, Janeide de Assis GuilhermeThe non-native signal crayfish (Pacifastacus leniusculus) can influence elemental cycling in aquatic ecosystems through bioaccumulation and transfer of chemical elements, with potential spatial variation along invasion gradients. In this study, we investigate the differences in elemental exposure in signal crayfish in the Rabaçal River, Portugal. We focus on potential intra-population differences along a well-d...
Evaluating brown trout as a potential biological control agent of signal crayfish
Matos, Matilde; Teixeira, Amilcar; Nogueira, António B.; Padilha, Janeide; Sousa, RonaldoThis study evaluates the potential of brown trout (Salmo trutta) as a biological control of a recently established signal crayfish (Pacifastacus leniusculus) population in a protected area (Baceiro River, Montesinho Natural Park, Portugal). Five sampling sites were monitored throughout 2023. Results indicated that brown trout were able to predate on signal crayfish but did so infrequently as only 12.24% of the ...
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,...