Whether predators can limit their prey has been a topic of scientific debate for decades. Traditionally it was believed that predators take only wounded, sick, old or otherwise low-quality individuals, and thus have little impact on prey populations. However, there is increasing evidence that, at least under certain circumstances, vertebrate predators may indeed limit prey numbers. This potenti...

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We present a preprocessing-based acceleration technique for computing bi-criteria Pareto-optimal journeys in public transit networks, based on the well-known RAPTOR algorithm [16]. Our key idea is to first partition a hypergraph into cells, in which vertices correspond to routes (e.g., bus lines) and hyperedges to stops, and to then mark routes sufficient for optimal travel across cells. The qu...

Adult male red colobus (Procolobus tephrosceles) were observed capturing and killing an owl (Glaucidium perlatum) in the Rurama forest fragment near Kibale National Park in western Uganda. The owl was not subsequently eaten by the colobus, their conspecifics, or the other primates present during the attack. Because the incident was preceded by an agonistic encounter with a raptor, the event is ...

Learning object-oriented programming usually involves learning a programming language with a large amount of complexity. Students very often spend more time dealing with syntactical complexity than learning the underlying principles of object-orientation or solving the problem. Additionally, the textual nature of most programming environments works against the learning style of the majority of ...

Abstract Raptors are often the cause of human-wildlife conflict because they may predate economically valuable species, and it is perceived extent predation that augment between raptors people who keep race pigeons. This study uses data obtained through questionnaires an online raptor-attack reporting feature to investigate frequency racing pigeon losses perceptions fanciers. Responses suggest ...