8 documents found, page 1 of 1
Conservation challenges imposed by evolutionary history and habitat suitability...
Reis, Joaquim; Perea, Silvia; Gama, Mafalda; Mendes, Sofia L.; Sousa, Vitor C.; Lima, Cristina S.; Banha, Filipe; Gil, Maria; Alvarez, Maria GarciaClimate change and associated shifts in temperature and precipitation patterns have become an increasing concern as drivers of ongoing biodiversity loss. The Mediterranean region is particularly vulnerable, being both a biodiversity hotspot and a region very prone to desertification. Freshwater mussels are amongst the most threatened invertebrate taxa worldwide. Unio tumidiformis is an endemic and endangered sp...
A new species of the genus Squalius (Leuciscidae, Actinopterygii) from the Sado...
Mendes, Sofia L.; Perea, Silvia; Sousa, Vitor C; Sousa-Santos, Carla; Doadrio, IgnacioA new species of the genus Squalius (Leuciscidae, Actinopterygii) from the Sado River basin in Portugal. A new species, Squalius caetobrigus sp. nov., is described based on morphological and genetic traits. Squalius caetobrigus sp. nov. can be distinguished from other Squalius species through a combination of morphometric, meristic and genetic characteristics: 39-42 (X=40.7; X̃=41) canaliculate scales on the la...
Conservation Challenges Imposed by Evolutionary History and Habitat Suitability...
Reis, Joaquim; Perea, Silvia; Gama, Mafalda; Mendes, Sofia L.; Sousa, Vitor C; Lima, Cristina; Banha, Filipe; Gil, Maria; Alvarez, Maria GarciaClimate change and associated shifts in temperature and precipitation patterns have become an increasing concern as drivers of ongoing biodiversity loss. The Mediterranean region is particularly vulnerable, being both a biodiversity hotspot and a region very prone to desertification. Freshwater mussels are amongst the most threatened invertebrate taxa worldwide. Unio tumidiformis is an endemic and endangered sp...
Descripción de dos especies nuevas del género Squalius Bonaparte, 1837 (Actinop...
Doadrio, Ignacio; Sousa-Santos, Carla; Perea, SilviaTwo new species, Squalius gaditanus sp. nov. and Squalius tartessicus sp. nov. are described on the basis of morphological and genetic traits. Squalius gaditanus is restricted to the Barbate, Jara and Miel drainages in the province of Cádiz (Southern Spain). Squalius gaditanus sp. nov. can be distinguished from other Squalius species from the Iberian Peninsula through a combination of morphometric, meristic and...
Historical biogeography of the Iberian Peninsula: multilocus phylogeny and ance...
Perea, Silvia; Sousa‐Santos, Carla; Robalo, Joana; Doadrio, IgnacioThe Iberian Peninsula is one of the most ancient geological areas in Europe. Its complex orography is a consequence of several geological episodes related with two orogenic episodes that occurred from Late Devonian (Variscan orogeny) to the Cenozoic (Alpine orogeny). Unraveling the evolutionary history of strict freshwater fauna, such as leuciscid fishes, may contribute to our understanding of the paleogeograph...
Multilocus phylogeny and systematics of Iberian endemic Squalius (Actinopterygi...
Perea, Silvia; Santos, Carla Sousa; Robalo, Joana; Doadrio, IgnacioInferring the evolutionary history of a group of species can be challenging given the many factors involved. In recent years, the increased availability of sequences of multiple genes per species has spurred the development of new methodologies to analyse multilocus data sets. Two approaches that analyse such data are concatenated supermatrix and coalescent-based species-tree analyses. In this study, we used bo...
Spatial heterogeneity in the Mediterranean Biodiversity Hotspot affects barcodi...
Geiger, Matthias F.; Herder, Fabian; Monaghan, Michael T.; Almada, Vítor Carvalho; Barbieri, Roberta; Bariche, Michel; Berrebi, Patrick; Bohlen, JörgIncomplete knowledge of biodiversity remains a stumbling block for conservation planning and even occurs within globally important Biodiversity Hotspots (BH). Although technical advances have boosted the power of molecular biodiversity assessments, the link between DNA sequences and species and the analytics to discriminate entities remain crucial. Here, we present an analysis of the first DNA barcode library f...
New distribution data on spanish autochthonous species of freshwater fish
Perea, Silvia; Garzón, Paloma; González, José Luis; Almada, Vítor Carvalho; Pereira, Ana Martins; Doadrio, IgnacioOver the last two years (2008-2010) we performed a monitoring project to update the Spanish freshwater fish fauna. We have collected in 785 sampling localities homogeneously distributed throughout Spain each year. We find as the most important result of this study the occurrence of several species that constitute new records for some rivers or basins in Spain: Lampetra planeri, Petromyzon marinus, Barbus haasi,...