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In this paper we extend PALPS, a process calculus proposed for the spatially-explicit, individual-based modeling of ecological systems, with a synchronous parallel operator. The semantics of the resulting calculus, S-PALPS, is defined at the level of populations as opposed to the level of individuals as was the case with PALPS, thus, allowing a considerable(More)
We gathered data for a four-year period (2004–2007) on the nesting ecology and reproductive performance of Eleonora’s falcon in the Aegean Sea. We investigated in an indirect way the relation between clutch size and pre-laying food availability, the significance of site and pair quality on productivity, and the effects of habitat and intraspecific(More)
Eleonora’s Falcon (Falco eleonorae) is an endemic breeder of the Mediterranean Sea and the Canary Islands that overwinters in Madagascar and surrounding areas. Recent telemetry studies have revealed the migratory journey of falcons from the western and central Mediterranean breeding colonies. Our study complements the puzzle of the species’ migration(More)
Several studies have shown that taxa with poor dispersal ability have a higher level of compositional dissimilarity than good dispersers. However, compositional dissimilarity patterns between islands with respect to dispersal ability of taxa have never been investigated before. In this study, we investigated compositional dissimilarity patterns of three(More)
Eleonora’s Falcon breeds colonially on small islands of the Mediterranean Sea and Macaronesia. Despite the wealth of papers highlighting the importance of nesting characteristics on this species’ breeding performance, few have addressed the issue of nest-site selection explicitly. In this paper, we develop presence–absence and presence-pseudoabsence models(More)
Compositional dissimilarity patterns of biotic communities can vary among different types of insular systems and among taxa with different dispersal abilities. In this work we examined compositional dissimilarity patterns of four avian groups, namely birds of prey, waterbirds, seabirds and landbirds, in various insular systems around the world.(More)
Urbanization causes rapid changes in the landscape and land use, exerting a significant pressure on bird communities. The effect of urbanization on bird diversity has been widely investigated in many cities worldwide; however, our knowledge on urban bird communities from the eastern Mediterranean region is very scarce. In this context, we aimed to(More)
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