Počet záznamů: 1

Comparative analysis of overwintering physiology in nine species of semi-aquatic bugs (Heteroptera: Gerromorpha)

  1. 1.
    0362907 - BC-A 2012 RIV GB eng J - Článek v odborném periodiku
    Ditrich, T. - Košťál, Vladimír
    Comparative analysis of overwintering physiology in nine species of semi-aquatic bugs (Heteroptera: Gerromorpha).
    Physiological Entomology. Roč. 36, č. 3 (2011), s. 261-270 ISSN 0307-6962
    Grant CEP: GA ČR GA206/07/0269
    Výzkumný záměr: CEZ:AV0Z50070508
    Klíčová slova: cold tolerance * overwintering * risk-spreading
    Kód oboru RIV: ED - Fyziologie
    Impakt faktor: 1.330, rok: 2011

    An analysis of the ecophysiological aspects of overwintering in nine gerromorphan species is presented. All nine species avoid ice formation by means of more or less extensive supercooling of their body fluids. There is a tight correlation between supercooling capacity and lower lethal temperature. The majority of species studied overwinter only as adults, whereas Velia caprai Tamanini, 1947 can overwinter either in the adult or egg stage. The supercooling capacity of V. caprai adults is insufficient to prevent the risk of lethal freezing. Winter survival in this species is assured by extensive supercooling and highly cold-tolerant overwintering eggs.
    Trvalý link: http://hdl.handle.net/11104/0199080