Spatial variation in habitat riskiness has a major influence on the predator–prey space race. However, the outcome of this race can be modulated if prey shares enemies with fellow prey (i.e., another prey species). Sharing of natural enemies may result in apparent competition, and its implications for prey space use remain poorly studied. Our objective was to test how prey species spend time among habitats that differ in riskiness, and how shared predation modulates the space use by prey species. We studied a one‐predator, two‐prey system in a coastal dune landscape in the Netherlands with the European hare (Lepus europaeus) and European rabbit (Oryctolagus cuniculus) as sympatric prey species and red fox (Vulpes vulpes) as their main predator. The fine‐scale space use by each species was quantified using camera traps. We quantified residence time as an index of space use. Hares and rabbits spent time differently among habitats that differ in riskiness. Space use by predators and habitat riskiness affected space use by hares more strongly than space use by rabbits. Residence time of hare was shorter in habitats in which the predator was efficient in searching or capturing prey species. However, hares spent more time in edge habitat when foxes were present, even though foxes are considered ambush predators. Shared predation affected the predator–prey space race for hares positively, and more strongly than the predator–prey space race for rabbits, which were not affected. Shared predation reversed the predator–prey space race between foxes and hares, whereas shared predation possibly also released a negative association and promoted a positive association between our two sympatric prey species. Habitat riskiness, species presence, and prey species’ escape mode and foraging mode (i.e., central‐place vs. noncentral‐place forager) affected the prey space race under shared predation.
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Public Play Space (PPS) is a project co-funded by the Creative Europe Programme of the European Union and developed by IAAC, BUas, and CLAC. It promotes innovative and creative practices for the co-design of inclusive, cohesive, and sustainable public spaces, through the use of games and digital technologies, in a transnational and European perspective, fostering the process of placemaking.The objective of this PPS Wiki Community Platform is to create a knowledge community on the use of digital technologies and games to enhance participatory processes for urban design and placemaking, allowing a wider dissemination of the best practices in this field and to facilitate knowledge sharing and the interaction among key stakeholders.
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In on editorialization: structuring space and authority in the digital age, Marcello Vitali-Rosati examines how authority changes in the digital era. Authority seems to have vanished in the age of the web, since the spatial relationships that authority depends on are thought to have levelled out: there are no limits or boundaries, no hierarchies or organized structures anymore. Vitali-Rosati claims the opposite to be the case: digital space is well-structured and material and has specific forms of authority. Editorialization is one key process that organizes this space and thus brings into being digital authority. Investigating this process of editorialization, Vitali-Rosati reveals how politics can be reconceived in the digital age.
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