Mo, 20.05.2019 - 17:15 Uhr
Prof. Dr. Thomas U. Mayer, Universität Konstanz
The meiotic cell cycle is unique in that it involves two M phases with no intervening S phase. A peculiar characteristic of female meiosis in vertebrates is that oocytes undergo distinct cell cycle arrests: immature oocytes arrest at prophase at meiosis I and following meiotic maturation they arrest as mature oocytes again at metaphase of meiosis II.
Mo, 27.05.2019 - 17:15 Uhr
Dr. Holger Görlitz, MPI für Ornithologie, Seewiesen
Active sensory systems, such as echolocation, evolved for the benefit of the sender. However, as active systems constantly radiate energy into the environment, they also provide ample public information to friends and foe.Echolocating bats move swiftly in 3D space, often in dense aggregations, using sound to interact with their environment, other bats of the same and different species, and their prey.
Mo, 03.06.2019 - 17:00 Uhr
Dr. David Bierbach, Humboldt University of Berlin & Leibniz-Institute of Freshwater Ecology and Inland Fisheries
In some species, the synchronization of individual behavior can give rise to complex and coordinated group performances (e.g. flocking of birds, herding of quadrupeds, swarming of insects or shoaling of fish).Here, large numbers of individuals move aligned and with synchronized speeds, thus giving the impression of a single organism. These large-scale dynamic patterns emerge in a self-organized fashion, e.g., by simple interactions among participating individuals.