J. Quesada

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Yellow, red or orange carotenoid-based colorations in male birds are often a signal to prospecting females about body condition, health status and ability to find food. However, this general 'ability to find food' has never been defined. Here we show that more brightly ornamented individuals may also be more efficient when foraging in novel situations. The(More)
Fire is a major agent involved in landscape transformation and an indirect cause of changes in species composition. Responses to fire may vary greatly depending on life histories and functional traits of species. We have examined the taxonomic and functional responses to fire of eight taxonomic animal groups displaying a gradient of dietary and mobility(More)
Allergic rhinitis (AR) is a common chronic condition in children and may impact a child's quality of life. Increasing treatment compliance may improve quality of life. An oral suspension of fexofenadine hydrochloride (HCl) has been developed to ease administration to children and may, therefore, improve treatment compliance. The purpose of this study was to(More)
A standard approach to model how selection shapes phenotypic traits is the analysis of capture-recapture data relating trait variation to survival. Divergent selection, however, has never been analyzed by the capture-recapture approach. Most reported examples of differences between urban and nonurban animals reflect behavioral plasticity rather than(More)
Estimating the number of vehicles present in traffic video sequences is a common task in applications such as active traffic management and automated route planning. There exist several vehicle counting methods such as Particle Filtering or Headlight Detection, among others. Although Principal Component Pursuit (PCP) is considered to be the state-of-the-art(More)
Invasive exotic species pose an important threat to biodiversity worldwide. However, there is little information on the effects that specific exotic bird species have on native biota. The House Sparrow is an excellent ecological model to evaluate the effect that an invasive exotic species has on native bird communities. Our study describes the relationship(More)
Intranasal and inhaled corticosteroid administration concurrently in comorbid allergic rhinitis (AR) and asthma may potentially enhance cortisol suppression. This study determined whether intranasal ciclesonide 200 micro g once daily has an additional effect on cortisol suppression when coadministered with inhaled fluticasone propionate-salmeterol (FP-SAL)(More)
In this study we developed a simple quantitative method to assist in the decision making process of the landscape planning by integrating information of species occurrence and their individual IUCN extinction risks. We applied this method in Catalonia (north-east Iberian Peninsula) using bird atlas data to create an Index of Cumulative Threat Status(More)
Nest volume in magpies is modulated by sexual selection. However, density of material that compounds the nest could also affect sexual signalling, and we may expect that high-quality pairs build larger and denser nests, with these two variables being positively correlated. As found for nest volume, density of nest thatching should be negatively related with(More)
In recent years, over a hundred studies have analysed the efficiency of financial institutions, mostly centering on costs. However, the few available studies that estimate profit frontier functions come up with efficiency levels that are much lower than cost efficiency levels, implying the existence of the most important inefficiencies on the revenue side.(More)