Docta Complutense
Open Access Institutional Repository of the Complutense University of Madrid, that compiles scientific production to promote the visibility and impact of Complutense research.
With the collaboration of the Ministerio de Ciencia e Innovación and the Spanish Foundation for Science and Technology (FECYT).
Recent Submissions
Olfato y envejecimiento : evidencias de la identificación olfatoria como marcador temprano del deterioro cognitivo
(2025) Bouhaben Olmedo, Jaime; Delgado Losada, María Luisa
El compendio de publicaciones que componen esta tesis doctoral tiene como objetivo principal analizar el papel que juega la identificación olfatoria en el deterioro cognitivo asociado al proceso de envejecimiento. La pérdida del sentido del olfato aumenta con el envejecimiento. Esta pérdida tiene lugar sobre todo en la identificación olfatoria, es decir, la capacidad para reconocer y nombrar olores. El rendimiento de los individuos en la identificación de los olores tiende a empeorar con la edad. Este declive es aún mayor en el contexto del deterioro cognitivo. En condiciones como el deterioro cognitivo leve (DCL) y la enfermedad de Alzheimer (EA), la capacidad de identificación de olores se encuentra notablemente afectada. El declive olfatorio tiende a mostrarse con anterioridad a los primeros síntomas cognitivos. Se considera que la identificación olfatoria puede tener un importante valor clínico como marcador temprano del envejecimiento patológico...
Contributions of hedgerows to people: a global meta-analysis
(Frontiers in Conservation Science, 2021) García de León, David; Rey Benayas, José María; Andivia Muñoz, Enrique
Hedgerows are linear landscape features of woody vegetation usually located around agricultural fields. An increasing number of studies have addressed the effects of hedgerows on biodiversity and ecosystem services. This study is aimed to synthesize these effects and compare the levels of biodiversity and ecosystem services in farmland with hedgerows and (1) farmland without hedgerows and (2) nearby natural habitat at the global scale. We hypothesized that farmland with hedgerows (1) enhances biodiversity and ecosystem services as compared to farmland without hedgerows but (2) supports lower levels of biodiversity and ecosystem services than natural habitat. Our systematic literature review retained 835 observations from 170 primary studies, which were analyzed following the standard methodology in meta-analyses. Our results partially support both hypotheses. Farmland with hedgerows exhibited higher levels of biodiversity and provisioning services than farmland without hedgerows (H1). Farmland with hedgerows provided similar levels of biodiversity (edge effects) but lower levels of ecosystem services than natural habitat (H2). The effects of hedgerows on biodiversity and ecosystem services depended on control ecosystem type (grassland/meadow or forest/woodland) but were largely independent of climate type (temperate or tropical) and the focus of spatial scale (field or landscape). In conclusion, conservation and restoration of hedgerows contribute to people in several ways by enhancing biodiversity and multifunctionality in agricultural landscapes.
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