Universitat de Barcelona
Now showing items 76-95 of 174
El objetivo principal de esta Tesis es producir estrategias para la productividad, perdurabilidad y calidad mediante el desarrollo de nuevas variedades comerciales de arroz mediterráneo (O. sativa) e introducir alelos de ...
Nowadays, it is estimated that about 450 million people suffer from a mental or behavioural disorder in the world. According to World health organization (WHO), 33% of the years lived with disability (YLD) are due to ...
Based on the background showing i) that obesity have a polygenic nature with the implication of different genes of minor effect and lifestyle factors; ii) the high variability between individuals in weight loss outcome ...
[eng] The invasion of alien species is a major global threat to ecosystems, with significant impacts, especially on freshwater ecosystems. The species diversity in freshwater ecosystems has significantly declined worldwide, ...
Unraveling the proximate processes that have shaped genetic variation of populations and led to lineage diversification and speciation is fundamental to understand the origin of present-day biodiversity patterns at both ...
Dental wear is a natural, complex, physiological process of gradual enamel tissue loss that occurs during an individual’s life span and provides information about dietary habits, food processing techniques and cultural ...
La introducció dels cultius que proveeixen serveis agroecològics (ASC) és una de les estratègies àmpliament reconeguda per millorar la sostenibilitat dels sistemes de cultiu. Tot i això, algunes autores i autors han ...
Environmental authorities, conservation professionals, and several other social sectors frequently demand scientifically sound information to inform policy and decision-making processes. Beyond national or subnational ...
High-elevation and high-latitude ecosystems are expected to be especially vulnerable to global change. Dwarf shrub species cover extensive areas in high mountain ecosystems, and warmer temperatures and land-use change have ...
High-mountain ranges are suitable ecosystems for studying local environmental shifts driven by large-scale climate changes. Sedimentary records obtained from those regions contain information that allows to understand past ...
Global climate change effects on agroecosystems together with increasing world population is already threatening food security and endangering ecosystem stability. Meet global food demand with crops production under climate ...
Las zonas costeras son uno de los ecosistemas que sufre mayor impacto antrópico a nivel mundial. La sobreexplotación de los recursos marinos es una de las actividades humanas que genera mayor impacto, reduciendo la abundancia ...
The human populations of the Mediterranean region have been thoroughly studied. Nonetheless, there are numerous aspects of their demographic and epidemiological history that remain uncertain to date. The growing use of ...
World cereal stocks need to increase in order to meet growing demands. Currently, maize, rice, wheat, are the main crops worldwide, while other cereals such as barley, sorghum, oat or different millets are also well placed ...
Headwater streams essentially link the terrestrial and the aquatic carbon cycle because they transport terrestrial organic and inorganic carbon downstream towards the oceans. However, most of these inputs are processed ...
[spa] Los tiburones y en general los peces condrictios se encuentran entre los organismos más amenazados del planeta, siendo los efectos derivados de la interacción con actividades pesqueras, como la sobrepesca y la pesca ...
El fósforo es un macroelemento esencial para el desarrollo y crecimiento de todas las plantas. Sin embargo, el fósforo inorgánico (Pi), forma asimilable por las plantas, es cada vez más escaso en los suelos naturales y es ...
It is of strategic importance for Mediterranean agriculture to develop new varieties of durum wheat with greater production potential, together with a better adaptation to adverse environmental conditions and better quality ...
Individual specialization refers to individuals using different portions of the total ecological niche of the population. The fact that individuals segregate into different strategies has important implications on ecology, ...
La intensificación agrícola es una de las principales causas de la pérdida de biodiversidad, así como de los servicios ecosistémicos asociados. La intensificación ha causado cambios en la estructura y en la composición del ...
