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Dive into the research topics where Paz Ondina is active.

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Featured researches published by Paz Ondina.


Biological Reviews | 2017

Conservation status of freshwater mussels in Europe: state of the art and future challenges.

Manuel Lopes-Lima; Ronaldo Sousa; Juergen Geist; David C. Aldridge; Rafael Araujo; Jakob Bergengren; Yulia V. Bespalaya; Erika Bódis; Lyubov E. Burlakova; Dirk Van Damme; Karel Douda; Elsa Froufe; Dilian Georgiev; Clemens Gumpinger; Alexander Y. Karatayev; Ümit Kebapçi; Ian Killeen; Jasna Lajtner; Bjørn M. Larsen; Rosaria Lauceri; Anastasios Legakis; Sabela Lois; Stefan Lundberg; Evelyn Moorkens; Gregory Motte; Karl-Otto Nagel; Paz Ondina; Adolfo Outeiro; Momir Paunović; Vincent Prié

Freshwater mussels of the Order Unionida provide important ecosystem functions and services, yet many of their populations are in decline. We comprehensively review the status of the 16 currently recognized species in Europe, collating for the first time their life‐history traits, distribution, conservation status, habitat preferences, and main threats in order to suggest future management actions. In northern, central, and eastern Europe, a relatively homogeneous species composition is found in most basins. In southern Europe, despite the lower species richness, spatially restricted species make these basins a high conservation priority. Information on freshwater mussels in Europe is unevenly distributed with considerable differences in data quality and quantity among countries and species. To make conservation more effective in the future, we suggest greater international cooperation using standardized protocols and methods to monitor and manage European freshwater mussel diversity. Such an approach will not only help conserve this vulnerable group but also, through the protection of these important organisms, will offer wider benefits to freshwater ecosystems.


Conservation Genetics | 2007

Threatened freshwater pearl mussel Margaritifera margaritifera L. in NW Spain: low and very structured genetic variation in southern peripheral populations assessed using microsatellite markers

Carmen Bouza; Jaime Castro; Paulino Martínez; Rafaela Amaro; Carlos Fernández; Paz Ondina; Adolfo Outeiro; Eduardo San Miguel

A genetic analysis of freshwater pearl mussel Margaritifera margaritifera populations from NW Spain, a peripheral area of its European distribution, was carried out using microsatellite markers. These populations were formerly reported as genetically differentiated on the basis of growth and longevity studies. Ten loci previously characterized in populations from central Europe were used to comparatively analyze the genetic variability at the southern edge of the species’ range. Iberian pearl mussel populations showed very low genetic variability and significant high genetic differentiation. Half of the total genetic diversity observed appeared to be distributed between populations, which suggested a highly structured adaptive potential in pearl mussel at the southern peripheral distribution of the species. Population distinctiveness was evidenced by assignment tests, which revealed a high accuracy of individual assignments to their population of origin. All data suggested low effective population size and major effects of genetic drift on population genetic structure. In order to avoid further loss of genetic variation in biologically distinctive populations from NW Spain, prioritization of genetic resources of this species is required for conservation and management.


Applied Soil Ecology | 1998

Importance of soil exchangeable cations and aluminium content on land snail distribution

Paz Ondina; Salustiano Mato; J. Hermida; Adolfo Outeiro

Abstract The influence of soil exchangeable cations and aluminium content on the distribution of various terrestrial gastropods was investigated. Calcium was the most important factor, though aluminium and magnesium content also had some effect. Potassium and sodium had no significant influence on distribution. The species most sensitive to the factors analysed were Cochlicopa lubrica, Vertigo pygmaea and Carychium tridentatum.


Journal of Morphology | 2018

Who wins in the weaning process? Juvenile feeding morphology of two freshwater mussel species

Rafael Araujo; Miquel Campos; Carles Feo; Catuxa Varela; Joaquín Soler; Paz Ondina

The global decline of freshwater mussels can be partially attributed to their complex life cycle. Their survival from glochidium to adulthood is like a long obstacle race, with juvenile mortality as a key critical point. Mass mortality shortly after entering into a juvenile state has been reported in both wild and captive populations, thus weakening the effective bivalve population. A similar phenomenon occurs during metamorphosis in natural and hatchery populations of juvenile marine bivalves. Based on a morphological analysis using scanning electron microscopy of newly formed juveniles of the freshwater species Margaritifera margaritifera (L.) (Margaritiferidae) and Unio mancus Lamarck (Unionidae), we show that a second metamorphosis, consisting of drastic morphological changes, occurs that leads to suspension feeding in place of deposit feeding by the ciliated foot. We hypothesize that suspension feeding in these two species improves due to a gradual development of several morphological features including the contact between cilia of the inner gill posterior filaments, the inner gill reflection, the appearance of the ctenidial ventral groove and the formation of the pedal palps. Regardless of the presence of available food, a suspension feeding mode replaces deposit feeding, and juveniles unable to successfully transition morphologically or adapt to the feeding changes likely perish.


Canadian Journal of Zoology | 2004

Growth models and longevity of freshwater pearl mussels (Margaritifera margaritifera) in Spain

E. San Miguel; S Monserrat; Carlos Fernández; Rafaela Amaro; Miguel Hermida; Paz Ondina; C R Altaba


Archive | 2009

Las náyades de la península Ibérica

Rafael Araujo; Joaquim Reis; Annie Machordom; Carlos Toledo; María José Madeira; Ignacio Gómez; Juan Carlos Velasco; Javier Morales; José Miguel Barea; Paz Ondina; Iker Ayala


Freshwater Biology | 2008

Population density and age structure of the freshwater pearl mussel, Margaritifera margaritifera, in two Iberian rivers

Adolfo Outeiro; Paz Ondina; Carlos Fernández; Rafaela Amaro; Eduardo San Miguel


Applied Soil Ecology | 2004

Relationships between terrestrial gastropod distribution and soil properties in Galicia (NW Spain)

Paz Ondina; J. Hermida; Adolfo Outeiro; Salustiano Mato


Journal of Biogeography | 2015

Spatial extent of biotic interactions affects species distribution and abundance in river networks: the freshwater pearl mussel and its hosts

Sabela Lois; David E. Cowley; Adolfo Outeiro; Eduardo San Miguel; Rafaela Amaro; Paz Ondina


Aquatic Conservation-marine and Freshwater Ecosystems | 2014

The north‐west of the Iberian Peninsula is crucial for conservation of Margaritifera margaritifera (L.) in Europe

Sabela Lois; Paz Ondina; Adolfo Outeiro; Rafaela Amaro; E. San Miguel

Collaboration


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Adolfo Outeiro

University of Santiago de Compostela

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Rafaela Amaro

University of Santiago de Compostela

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Sabela Lois

University of Santiago de Compostela

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Eduardo San Miguel

University of Santiago de Compostela

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Rafael Araujo

Spanish National Research Council

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Carlos Fernández

University of Santiago de Compostela

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J. Hermida

University of Santiago de Compostela

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Carmen Bouza

University of Santiago de Compostela

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E. San Miguel

University of Santiago de Compostela

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Jaime Castro

University of Santiago de Compostela

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