Listar por autor "Leira, Manel"
Mostrando ítems 1-12 de 12
-
A 12,000 yr δ13C and δ15N isotopic record from Amboromena, Andringitra Massif, in Madagascar
Leira, Manel; Fernández Mosquera, Daniel (Universidade da Coruña, 1998)[Abstract] Profiles of percent carbon, nitrogen and phosphorus, carbon/nitrogen (C/N) ratios, percent organic matter and carbonates, and stable carbon (δ13C) and nitrogen (δ15N) from a 176 cm core were used to reconstruct ... -
A Simple and Inexpensive Method to Gain Diatom Absolute Abundances from Permanent Mounts in Hydrobiological and Paleoecological Research
Cantonati, Marco; Cid, María; Rossi, Floriana; Leira, Manel (MDPI, 2023-05-13)[Abstract] Here, we describe and discuss a method based on microscopical field of view (FOV) area to estimate diatom absolute abundances (densities or concentrations), and we statistically verify its reliability, also ... -
Abrupt Diatom Responses to Recent Climate and Land Use Changes in the Cantabrian Mountains (NW Spain)
Gardoki, Jon; Morellón, Mario; Leira, Manel; Ezquerra, Francisco Javier; Remondo, Juan; Tinner, Willy; Canales, María Luisa; van der Horst, Anouk; Morales-Molino, César (Springer, 2022-10-03)[Abstract] The multi-proxy study of sediment cores from Lake Isoba (43° 02′ N, 5° 18′ W; 1400 m a.s.l.) allows a detailed assessment of the past hydrological and environmental dynamics in north-western Iberia resulting ... -
Diatom communities in thermo-mineral springs of Galicia (NW Spain)
Leira, Manel; Meijide-Faílde, Rosa; Torres, Enrique (Taylor & Francis para The International Society for Diatom Research, 2017-03-02)[Abstract] The species composition of diatom assemblages was studied in five unpolluted thermo-mineral springs in Galicia (NW Spain). Three are considered hot and two cold, and some contain hydrogen sulphide. A total of ... -
Evolución postglaciar de la laguna de Villaseca (NW de la Península Ibérica) a partir del análisis de diatomeas
Leira, Manel; Bao, Roberto; Vidal Romaní, Juan Ramón (Universidade da Coruña, 1997)[Abstract] The lake of Villaseca is located in the foothills of the southern Cantabrian Mountains, nearby Villaseca de Laciana (León,NWIberian Peninsula). This lake has a glacier origin and has been formed due to the ... -
Formation and Evolution of Back-Barrier Perched Lakes in Rocky Coasts: An Example of a Holocene System in North-West Spain
Sáez, Alberto; Carballeira, Rafael; Pueyo Mur, Juan José; Vázquez-Loureiro, David; Leira, Manel; Hernández, Armand; Valero Garcés, Blas; Bao, Roberto (Wiley, 2018-09-22)[Abstract] Coastal back-barrier perched lakes are freshwater bodies that are elevated over sea-level and are not directly subjected to the inflow of seawater. This study provides a detailed reconstruction of the Doniños ... -
Holocene Sea Level and Climate Interactions on Wet Dune Slack Evolution in SW Portugal: A Model for Future Scenarios?
Leira, Manel; Freitas, Maria da Conceição; Ferreira, T.; Cruces, Anabela; Connor, Simon; Andrade, C.; Lopes, Vera; Bao, Roberto (Sage, 2018)[Abstract] We examine the Holocene environmental changes in a wet dune slack of the Portuguese coast, Poço do Barbarroxa de Baixo. Lithology, organic matter, biological proxies and high-resolution chronology provide ... -
Preservación de diatomeas en sedimentos turbosos
Leira, Manel (Universidade da Coruña, 1998)[Abstract] This paper describes a comprehensive survey of the quality of diatom preservation in the recent sediment record from two close peatbogs but with different geomorphological features, Villaseca and La Mata (NW ... -
Simplified Marsh Response Model (SMRM): A Methodological Approach to Quantify the Evolution of Salt Marshes in a Sea-Level Rise Context
Inácio, Miguel; Pombo de Freitas, Maria da Conceição; Graça Cunha, Ana; Antunes, C.; Leira, Manel; Lopes, Vera; Andrade, C.; Silva, Tiago Adrião (MDPI, 2022-07-15)[Abstract] Salt marshes are highly valued coastal environments for different services: coastline protection, biodiversity, and blue carbon. They are vulnerable to climate changes, particularly to sea-level rise. For this ... -
Stratification Strength and Light Climate Explain Variation in Chlorophyll 𝑎 at the Continental Scale in a European Multilake Survey in a Heatwave Summer
Donis, Daphne; Leira, Manel; García, David; Carballeira, Rafael (Association for the Sciences of Limnology and Oceanography, 2021-10-30)[Abstract] To determine the drivers of phytoplankton biomass, we collected standardized morphometric, physical, and biological data in 230 lakes across the Mediterranean, Continental, and Boreal climatic zones of the ... -
The Role of Climate, Marine Influence and Sedimentation Rates in Late-Holocene Estuarine Evolution (SW Portugal)
Costa, Ana; Freitas, Maria da Conceição; Leira, Manel; Costas, Susana; Costa, Pedro J. M.; Andrade, C.; Bao, Roberto; Duarte, João; Rodrigues, Aurora; Cachão, M.; Araújo, Ana Cristina; Diniz, Mariana; Arias, Pablo (Sage, 2019)[Abstract] Estuaries are sensitive to changes in global to regional sea level, to climate-driven variation in rainfall and to fluvial discharge. In this study, we use source and environmentally sensitive proxies together ... -
The Timing of the Deglaciation in the Atlantic Iberian Mountains: Insights From the Stratigraphic Analysis of a Lake Sequence in Serra Da Estrela (Portugal)
Hernández, Armand; Sáez, Alberto; Santos, Ricardo N.; Rodrigues, Teresa; Martín-Puertas, Celia; Gil-Romera, Graciela; Abbott, Mark; Carballeira, Rafael; Costa, Pedro J. M.; Giralt, Santiago; Gomes, Sandra D.; Griffore, Melissa; Ibáñez-Insa, Jordi; Leira, Manel; Moreno, João; Naughton, Filipa; Oliveira, Dulce; Raposeiro, Pedro M.; Trigo, Ricardo M.; Vieira, Gonçalo; Ramos, Alexandre M. (Wiley, 2023-02-07)[Abstract] Understanding the environmental response to the last glacial termination in regions located in transitional climate zones such as the Atlantic Iberian mountains is crucial to estimate potential changes in regions ...