10.18453/rosdok_id00004512 Maaß, Eric Eric Maaß http://d-nb.info/gnd/1315132494 Universität Rostock 2023 500 Natural sciences 590 Zoological sciences 2023 en https://purl.uni-rostock.de/rosdok/id00004512 urn:nbn:de:gbv:28-rosdok_id00004512-6 Harbour seals often commute between haul-out places and feeding grounds. With submission of this dissertation, two direct mechanisms were examined, with which harbour seals could achieve these performances. Hereby, it could be demonstrated, that seals can localise goals with the help of landmarks drawing on multiple strategies. Likewise, it could be demonstrated, that the seals can be very precise while estimating distances, even under visual masking. Thus, both mechanisms could allocate valuable information for orientation and navigation in the highly variable habitat of the harbour seals.