title: Seasonal timing: how does a hibernator know when to stop hibernating?
abstract: Deep hibernators that spend winter in a hypothermic coma below ground can still emerge and reproduce in spring at the right moment. A recent study shows that specific cells of the pituitary may harbor the internal calendar responsible for this.
authors.affiliation: Chronobiology Unit, Centre for Behaviour and Neurosciences, University of Groningen, the Netherlands. Electronic address: r.a.hut@rug.nl.
authors.forename: Roelof A
authors.initials: RA
authors.lastname: Hut
authors.affiliation: Physiologie de la Reproduction et des Comportements, INRA UMR85, Nouzilly, France.
authors.forename: Hugues
authors.initials: H
authors.lastname: Dardente
authors.affiliation: Chronobiology Unit, Centre for Behaviour and Neurosciences, University of Groningen, the Netherlands.
authors.forename: Sjaak J
authors.initials: SJ
authors.lastname: Riede
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001683:Biological Clocks / Q000502:physiology*; D004141:Dinoflagellida / Q000502:physiology; D006062:Gonadotropins / Q000378:metabolism; D006605:Hibernation / Q000502:physiology*; D008954:Models, Biological; D017440:Photoperiod; D010902:Pituitary Gland / Q000378:metabolism*; D012377:Rodentia / Q000502:physiology; D012621:Seasons; D013045:Species Specificity
chemical_list: D006062:Gonadotropins