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Now showing 1 - 10 of 28232
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    Open Access
    Introduction: Intersections between ageing studies and science and speculative fiction
    (Bloomsbury Academic, 2023) Oró Piqueras, Maricel
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    Open Access
    Interdisciplinariedad e interterritorialidad: Albox y El Boix, Valls y Vélez, Osuna y Urso
    (Publicacions de l’Acadèmia Valenciana de la Llengua, 2020) Terrado Pablo, Javier
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    Open Access
    Ageing and Generation in Recent Narratives of Longevity
    (Bloomsbury Academic, 2023) Oró Piqueras, Maricel
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    Open Access
    Quality production of sainfoin swards challenged by global change in mountain areas in the western Mediterranean
    (MDPI, 2024) Sebastià, Ma. T.; Banagar, Fatemeh; Palero, Noemí; Ibañez Raffaele, Mercedes; Plaixats, Josefina
    Legume-based livestock forage systems are widespread and socially relevant agroecosystems that are essential for delivering high-quality forage. Therefore, it is critical to determine how climate change and management might affect the functioning of forage agroecosystems. The objective of this study was to explore the potential of sainfoin swards under different management regimes by combining results from an experiment on species diversity effects on yield developed under extreme climatic conditions and a survey of sainfoin (Onobrychis viciifolia Scop.) swards and nutritive value in mountain regions in Catalonia, Western Mediterranean. Our results show that 12–59% of the variability in forage nutritive value parameters was accounted for by management. Young cattle-grazed swards showed higher nutrition quality that decreased faster than sheep-grazed or only mown swards. Mixing sainfoin with orchardgrass increased fiber content (e.g., +22% neutral detergent fiber) and decreased protein (−26%) and lignin (−11%) compared to sainfoin monocultures. However, under the extreme climatic conditions of the last three years, the only diversity effect found on yield was the identity of the species present. We propose that a combination of different sainfoin management regimes might be beneficial regionally for both quality forage production and overall biodiversity conservation, whereas traditional systems may be vulnerable to changing climatic conditions.
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    Open Access
    A Preliminary Evaluation of Sex and Dietary Field Pea Effects on Sensory Characteristics of Dry-Cured Loins
    (MDPI, 2024-02-27) Argemí i Armengol, Immaculada; Álvarez Rodríguez, Javier; Tor i Naudí, Marc; Salada, Laura; Leite, Ana; Vasconcelos, Lia; Teixeira, A.; Rodrigues, Sandra Sofia Quinteiro
    Two of the main issues related to cured meat products are castration to avoid boar taint and the hefty reliance on soybean meal to feed pigs. However, data on the effects of immunocastration in pigs and alternative crop protein feeds on the sensory traits and consumers' acceptance of drycured loin are still limited. A preliminary study was conducted on the effect of sex type (surgical castrated male pigs and immunocastrated male and female pigs, at approximately 140 kg in weight and 7 months of age) and animal diet (pea vs. soya) on dry-cured loins. The study involved a sensory evaluation of six treatments, with a 3 × 2 factorial design, conducted by trained panellists and untrained consumers in Spain (n = 126) and Portugal (n = 80). The consumers were also checked for their skatole sensitivity using a pure substance. The results showed that the pea-based diet was significantly different (p < 0.001) from the soy-based diet, as determined by a trained panel of surgically castrated male pigs, although the immunocastration treatments were not split. Dry-cured loin from immunocastrated male pigs fed with peas was considered tenderer and juicier (p < 0.05) than those fed soya-based diets. The untrained consumer panel scored higher on the sensory traits (flavour, juiciness, and overall liking) from the loin samples of surgically castrated male pigs fed a pea diet. All consumers scored similarly in boar taint detection. This study demonstrates the applicability of the pea-based diet for the feeding of pigs destined for cured meat and highlights immunocastration as a tool that does not compromise the skatole detection score.
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    Open Access
    Constrained trait variation by water availability modulates radial growth in evergreen and deciduous Mediterranean oaks
    (Elsevier, 2024) González de Andrés, Ester, Ester; Serra-Maluquer, Xavier; Gazol, Antonio; Olano, José Miguel; García-Plazaola, José Ignacio; Fernández-Marín, Beatriz; Bosco Imbert, J.; Coll Mir, Lluís; Améztegui González, Aitor
    Spatial and temporal variation in functional traits allows trees to adjust to shifting environmental conditions such as water stress. However, the change of traits, both mean and variances, along water availability gradients and across growing seasons, as well as their covariation with tree performance, have been rarely assessed. We examined intraspecific trait variation in coexisting evergreen (Quercus ilex ssp. ilex and Q. ilex ssp. ballota) and deciduous (Quercus faginea and Quercus humilis) Mediterranean oaks along a wide water availability gradient in northeastern Spain during six years. We measured leaf area (LA), shoot twig mass (Sm), leaf mass per area (LMA) and the ratio of shoot twig to leaf biomass (Sm:Lm). We characterized tree performance through basal area increment (BAI) and drought resilience indices. Higher variation was found within individuals than between individuals across populations and years. Within species, we found trait adjustments toward more conservative water-use (low LA and Sm and high LMA) with increasing drier conditions. Intraspecific trait variation was constrained by water availability, particularly on the deciduous species. In Q. ilex, trait variance of LMA positively covaried with annual BAI, whereas variance of LA, Sm and Sm:Lm was positively related to resistance and resilience against the severe 2012 drought in deciduous oaks. Our results support a tradeoff between the ability to tolerate drought and the capacity to cope with unpredictable changes in the environment through increased intraspecific trait variation, which may have implications on tree performance in the face of increased extreme events.
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    Embargo
    Pre-and post-drought conditions drive resilience of Pinus halepensis across its distribution range
    (Elsevier, 2023) Veuillen, Léa; Prévosto, Bernard; Alfaro-Sánchez, Raquel; Badeau, Vincent; Battipaglia, Giovanna; Beguería, Santiago; Bravo, Felipe; Boivin, Thomas; Camarero, J. Julio; Čufar, Katarina; Davi, Hendrik; Luis, Martin De; Campo, Antonio Del; Miren, Del Rio; Voltas Velasco, Jordi
    Severe droughts limit tree growth and forest productivity worldwide, a phenomenon which is expected to aggravate over the next decades. However, how drought intensity and climatic conditions before and after drought events modulate tree growth resilience remains unclear, especially when considering the range-wide phenotypic variability of a tree species. We gathered 4632 Aleppo pine (Pinus halepensis Mill.) tree-ring width series from 281 sites located in 11 countries across the Mediterranean basin, representing the entire geographic and bioclimatic range of the species. For each site and year of the period 1950–2020, we quantified tree-growth resilience and its two components, resistance and recovery, to account for the impact of drought and the capacity to recover from it. Relative drought intensity of each year was assessed using SPEI (Standardized Precipitation Evapotranspiration Index), a climatic water deficit index. Generalized additive mixed models were used to explore the non-linear relationships between resilience and its two components and drought intensity, preceding and following years climatic conditions. We found that P. halepensis radial growth was highly dependent on the SPEI from September of the previous year to June of the current year. Trees growing under more arid bioclimates showed higher inter-annual growth variability and were more sensitive to drought, resulting in an increased response magnitude to pre-, during and post-drought conditions. In contrast to our expectations, drought intensity only slightly affected resilience, which was rather negatively affected by favorable preceding conditions and improved by favorable following conditions. Resilience and its components are highly dependent on preceding and following years climatic conditions, which should always be taken into account when studying growth response to drought. With the observed and predicted increase in drought frequency, duration and intensity, favorable conditions following drought episodes may become rare, thus threatening the future acclimation capacity of P. halepensis in its current distribution.
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    Open Access
    Impacto ecológico de los peces continentales introducidos en la penísula ibérica
    (Asociación Española de Ecología Terrestre, 2015-03-30) García-Berthou, Emili; Almeida, David; Benejam, Lluís; Magellan, Kit; Bae, Mi-Jung; Casals i Martí, Frederic; Merciai, Roberto
    La península ibérica goza de una rica fauna de peces continentales, muchos de ellos endémicos y amenazados. Una de las causas de su declive es la introducción de especies exóticas o la translocación de algunas nativas a nuevas cuencas. En este trabajo, revisamos los impactos ecológicos de estas introducciones, desde los niveles genético e individual a los de comunidad y global, basándonos principalmente en trabajos de la península. Aunque la evidencia acumulada es considerable, el impacto ecológico de la mayoría de especies e introducciones apenas ha sido estudiado y seguramente es mucho mayor del que se conoce.
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    Open Access
    A Few Good Old Men: Revising Ageing Masculinities in Last Tango in Halifax
    (Palgrave macmillan, 2023) Oró Piqueras, Maricel
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    Open Access
    Why and when do freshwater fish migrate? Observations of migration patterns of the native fishes from the Iberian Peninsula (SW Europe)
    (Asociación Ibérica de Limnología, 2024-01-11) Ordeix Rigo, Marc; Casals i Martí, Frederic
    We reviewed information on Iberian freshwater fish to characterize their migratory status and identify migration reasons and periods. Most species migrate (87.3 %; 62 species from 15 families). A large number are potamodromous species (45 species from 6 families) but diadromous species (17 species from 11 families) also exist, including anadromous (9 species) and catadromous (8 species). The spawning period is a primary driver of fish migration but feeding and refuge-associated migrations also take place. Sexual maturity is the most important cue triggering fish migration, and other important factors include water temperature, river flow, currents, salinity and photoperiod. Spawning and migrating periods are in general prolonged and vary among years, as a response to the environmental variability of Mediterranean river systems, which are the most frequent in the Iberian Peninsula. Migratory movements of the various native species of each site cover almost the whole or the whole year. Therefore, to allow fish migration, Iberian freshwaters should always be connected, or their fish passes should be permanently, or practically always, in operation.