0470410 - ÚBO 2018 RIV US eng J - Článek v odborném periodiku
Starostová, Z. - Gvoždík, Lumír - Kratochvíl, L.
An energetic perspective on tissue regeneration: the costs of tail autotomy in growing geckos.
Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology. Roč. 206, April (2017), s. 82-86. ISSN 1095-6433. E-ISSN 1531-4332
Grant CEP: GA MŠMT LC06073
Institucionální podpora: RVO:68081766
Klíčová slova: autotomy * growth * lizard * metabolic rate * oxygen consumption * regeneration
Obor OECD: Zoology
Impakt faktor: 2.258, rok: 2017 ; AIS: 0.627, rok: 2017
DOI: https://doi.org/10.1016/j.cbpa.2017.01.015

Tail autotomy is a crucial antipredatory lizard response, which greatly increases individual survival, but at the same time also compromises locomotor performance, sacrifices energy stores and induces a higher burden due to the ensuing response of regenerating the lost body part. The potential costs of tail autotomy include shifts in energy allocation and metabolic rates, especially in juveniles, which invest their energy primarily in somatic growth. We compared the metabolic rates and followed the growth of juvenile males with and without regenerating tails in the Madagascar ground gecko (Paroedura picta), a nocturnal ground-dwelling lizard. Geckos with intact tails and those that were regrowing them grew in snout-vent-length at similar rates for 22 weeks after autotomy. Tail regeneration had a negligible influence on body mass-corrected metabolic rate measured at regular intervals throughout the regenerative process. We conclude that fast-growing juveniles under the conditions of unrestricted food can largely compensate for costs of tail loss and regeneration in their somatic growth without a significant impact on the total individual body mass-corrected metabolic rate.
Trvalý link: http://hdl.handle.net/11104/0268050