Biologia Evolutiva, Ecologia i Ciències Ambientals: Envíos recientes
Mostrando ítems 221-240 de 1903
Spatiotemporal variability in radial growth of trees in the Central Pyrenees: climatic and site influences.
To understand how tree growth has responded to recent climate warming, an understanding of the tree-climate-site complex is necessary. To achieve this, radial growth variability among 204 trees established before 1850 was ...
Aplicació de la cibernètica a l'estudi de sistemes biològics al nivell de l'ecosistema
Els sistemes dotats del que anomenem vida són, essencialn1ent, sistemes cibernètics. Una sèrie de mecanismes de regulació garanteixen la conservació d'una estructura, d'una organització, enfront de les pertorbacions que ...
Aportacio a la flora liquenica del Turo del Sant Mateu (Premia de Dalt, Maresme)
Se presenta el catálogo liguénico del Turó de Sant Mateu (El Maresme, 499 m s.m.). El substrato está constituido por tonalitas y la vegetación superior corresponde a un Quercetum ilicis galloprovinciale Br. Bl. (1915) 1936, ...
Els prats de l'alianÇa Xerobromion als Pirineus Catalans
En este trabajo se intenta dar una visión sintética de las comunidades de la alianza Xerobromion conocidas hasta el momento de los Pirineos catalanes. Se distinguen en dicho territorio nueve asociaciones distintas, cinco ...
Limnological research in the Iberian Peninsula: a ten-year survey of published literature.
Research on limnology in southern Europe had achieved a notable presence in the international arena before the onset of the current dramatic cuts in public investment in science. We assessed the limnological research ...
Phytoplankton across tropical and subtropical regions of the Atlantic, Indian and Pacific oceans.
We examine the large-scale distribution patterns of the nano- and microphytoplankton col- lected from 145 oceanic stations, at 3 m depth, the 20% light level and the depth of the sub- surface chlorophyll maximum, during ...
Global phenological insensitivity to shifting ocean temperatures among seabirds
Reproductive timing in many taxa plays a key role in determining breeding productivity1, and is often sensitive to climatic conditions2. Current climate change may alter the timing of breeding at different rates across ...
Biased adult sex ratios in western Europe populations of little bustard Tetrax tetrax as a potential warning signal of unbalanced mortalities
<p>Adult sex ratios (ASRs) have proved to correlate with population trends, which make them</p><p>potential useful indicators of a species’ population trajectory and conservation status. We</p><p>analysed ASRs and proportion ...
Dimorfismo sexual de la clavícula: un estudio basado en una muestra actual española.
Los objetivos de este trabajo fueron estudiar el dimorfismo sexual de la clavícula, teniendo en cuenta su asimetría direccional, y aportar algoritmos útiles para el diagnóstico sexual. El material utilizado fueron 77 ...
Seguiment del medi marí al Parc Natural de Cap de Creus i al Parc Natural del Montgrí, les Illes Medes i el Baix Ter. Memòria 2018.
Aquesta memòria recull els resultats del grup de treball del Departament d’Ecologia de la Universitat de Barcelona relatiu al seguiment del medi marí al Parc Natural de Cap de Creus i al Parc Natural del Montgrí, les Illes ...
Season of birth and subclinical psychosis: systematic review and meta-analysis of new and existing data
Season of birth (SOB) has been shown to modify the risk of several health outcomes, including a number of neuropsychiatric disorders. Empirical evidence indicates that subclinical forms of psychosis in the general population ...
S.O.S. Pinna nobilis: a mass mortality event in western Mediterranean Sea.
A mass mortality event (MME) impacting the bivalve Pinna nobilis was detected across a wide geographical area of the Spanish Mediterranean Sea (Western Mediterranean Sea) in early autumn 2016. Underwater visual censuses ...
Impact of olive saplings and organic amendments on soil microbial communities and effects of mineral fertilization
Plant communities and fertilization may have an impact on soil microbiome. Most commercial olive trees are minerally fertilized, while this practice is being replaced by the use of organic amendments. Organic amendments ...
A Comparative Analysis of DNA Metabarcoding and Morphological Identification in Diatoms Reveals Similar Patterns of Environmental Response
Diatoms are widely used as environmental sentinels and are commonly studied through morphological identification. However, this method requires specialist knowledge, which is becoming increasingly scarce, resulting in ...
Biology and ecology of lionfish (Pterois volitans) in the Corales de Profundidad Natural National Park, Colombian Caribbean.
En el ambiente mesofótico se observaron 237 especímenes de Pterois, mayoritariamente en la zona mesofótica superior. Los machos fueron más grandes que las hembras con modelos de crecimiento diferenciados. Se identificaron ...
Polygenic contribution to the relationship of loneliness and social isolation with schizophrenia
Previous research suggests an association of loneliness and social isolation (LNL-ISO) with schizophrenia. Here, we demonstrate a LNL-ISO polygenic score contribution to schizophrenia risk in an independent case-control ...
Principales patrones de distribución de plantas vasculares de los Países Catalanes
El área de estudio, los Países Catalanes, comprende la parte oriental de la Península Ibérica y las islas adyacentes (Bolòs, 1985). Su superfície es aproximadamente de 70.000 km2 y se trata de un área bastante bien estudiada ...
El coral·ligen de les illes Medes: una comunitat fràgil amb un gran valor patrimonial
Podeu consultar l'informe complet [El fons marí de les illes Medes i el Montgrí: quatre dècades de recerca per a la conservació] a: http://hdl.handle.net/2445/33366
The complex organization of human cognitive domains and their heritability: a systematic review
Una revisión sistemática de la organización compleja de los dominios cognitivos humanos y su heredabilidad. Antecedentes: se ha propuesto que la estructura de la cognición humana respondería a un sistema jerárquico, donde ...
Seasonality and predictability shape temporal species diversity
Temporal environmental fluctuations, such as seasonality, exert strong controls on biodiversity. While the effects of seasonality are well known, the predictability of fluctuations across years may influence seasonality ...
