Temperature dependence and ontogenetic changes of metabolic rate of an endemic earthworm .i.Dendrobaena mrazeki./i.

0347055 - BC 2011 RIV SK eng J - Journal Article
Šustr, Vladimír - Pižl, Václav
Temperature dependence and ontogenetic changes of metabolic rate of an endemic earthworm Dendrobaena mrazeki.
Biologia. Roč. 65, č. 2 (2010), s. 289-293. ISSN 0006-3088. E-ISSN 1336-9563
R&D Projects: GA ČR GA206/03/0056
Institutional research plan: CEZ:AV0Z60660521
Keywords : Dendrobaena * oxygen consumption * acclimation
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.609, year: 2010

Ontogenetic changes and temperature dependency of respiration rate were studied in Dendrobaena mrazeki, an earthworm species inhabiting relatively warm and dry habitats in Central Europe. D. mrazeki showed respiration rate lower than in other earthworm species, <70 µl O₂ g^-1 h^-1, within the temperature range of 5-35°C. The difference of respiration rate between juveniles and adults was insignificant at 20°C. The response of oxygen consumption to sudden temperature changes was compared with the temperature dependence of respiratory activity in animals pre-acclimated to temperature of measurement. No significant impact of acclimation on the temperature response of oxygen consumption was found. The body mass-adjusted respiration rate increased slowly with increasing temperature from 5 to 25°C (Q₁₀ from 1.2 to 1.7) independently on acclimation history of earthworms.
Permanent Link: http://hdl.handle.net/11104/0187919