Abstract
In caudal autotomy, lizards shed their tail to escape from an attacking predator. Since the tail serves multiple functions, caudal regeneration is of pivotal importance. However, it is a demanding procedure that requires substantial energy and nutrients. Therefore, lizards have to increase energy income to fuel the extraordinary requirements of the regenerating tail. We presumed that autotomized lizards would adjust their digestion to acquire this additional energy. To clarify the effects of tail regeneration on digestion, we compared the digestive performance before autotomy, during regeneration, and after its completion. Tail regeneration indeed increased gut passage time but did not affect digestive performance in a uniform pattern: though protein income was maximized, lipid and sugar acquisition remained stable. This divergence in proteins may be attributed to their particular role in tail reconstruction, as they are the main building blocks for tissue formation.
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References
Alibardi L (2010) Morphological and cellular aspects of tail and limb regeneration in lizards. A model system with implication for tissue regeneration in mammals. Springer Heidelberg, New York
Arnold EN (1988) Caudal autotomy as a defense. In: Gans C, Huey RB (eds) Biology of the reptilia. Alan R. Liss, New York, pp 235–273
Bateman PW, Fleming PA (2009) To cut a long tail short: a review of lizard caudal autotomy studies carried out over the last 20 years. J Zool 277:1–14
Bellairs DA, Bryant SV (1985) Autotomy and regeneration in reptiles. In: Gans BC, Billet F (eds) Biology of the reptilia. John Wiley and Sons, New York, pp 301–410
Boozalis TS, LaSalle LT, Davis JR (2012) Morphological and biochemical analyses of original and regenerated lizard tails reveal variation in protein and lipid composition. Comp Biochem Physiol A 161(1):77–82
da Diefenbach CO (1975) Gastric function in Caiman crocodilus (Crocodylia: Reptilia). II. Effects of temperature on pH and proteolysis. Comparative Biochemistry and Physiology - A Molecular and Integrative Physiology 51(2):267–274
Doughty P, Shine R, Lee MSY (2003) Energetic costs of tail loss in a montane scincid lizard. Comp Biochem Physiol A Mol Integr Physiol 135(2):215–219
Fox SF, McCoy JK (2000) The effects of tail loss on survival, growth, reproduction, and sex ratio of offspring in the lizard Uta stansburiana in the field. Oecologia 122(3):327–334
Herrel A, Huyghe K, Vanhooydonck B, Backeljau T, Breugelmans K, Grbac I, Van Damme R, Irschick DJ (2008) Rapid large-scale evolutionary divergence in morphology and performance associated with exploitation of a different dietary resource. Proc Natl Acad Sci U S A 105(12):4792–4795
Karameta E, Mizan VL, Sagonas K, Sfenthourakis SM, Efstratios DV, Pafilis P (2017) Ontogenetic shifts in the digestive efficiency of an insectivorous lizard (Squamata: Agamidae). Salamandra. In press
Karasov WH, Martinez Del Rio C (2007) Physiological ecology: how animals process energy, nutrients, and toxins. Princeton University Press, New Jersey
Maginnis TL (2006) The costs of autotomy and regeneration in animals: a review and framework for future research. Behav Ecol Sociobiol 17:857–872
McConnachie S, Alexander GJ (2004) The effect of temperature on digestive and assimilation efficiency, gut passage time and appetite in an ambush foraging lizard, Cordylus melanotus melanotus. J Comp Physiol B 174(2):99–105
McElroy EJ, Bergmann PJ (2013) Tail autotomy, tail size, and locomotor performance in lizards. Physiol Biochem Zool 86(6):669–679
Meyer V, Preest MR, Lochetto SM (2002) Physiology of original and regenerated lizard tails. Herpetologica 58(1):75–86
Naya DE, Božinović F (2006) The role of ecological interactions on the physiological flexibility of lizards. Funct Ecol 20:601–608
Pafilis P, Foufopoulos J, Poulakakis N, Lymberakis P, Valakos E (2007) Digestive performance in five Mediterranean lizard species: effects of temperature and insularity. J Comp Physiol B 177(1):49–60
Pafilis P, Meiri S, Sagonas K, Karakasi D, Kourelou E, Valakos ED (2016) Body size affects digestive performance in a Mediterranean lizard. Herpetol J 26:199–205
Pérez-Mellado V, Corti C, Lo Cascio P (1997) Tail autotomy and extinction in Mediterranean lizards. A preliminary study of continental and insular populations. J Zool 243(3):533–541
Pinoni SA, Iribarne O, Mañanes AAL (2011) Between-habitat comparison of digestive enzymes activities and energy reserves in the SW Atlantic euryhaline burrowing crab Neohelice granulata. Comp Biochem Physiol A 158(4):552–559
R Development Core Team (2015) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria
Sagonas K, Pafilis P, Valakos ED (2015) Effects of insularity on digestive performance: living in islands induces shifts in physiological and morphological traits in a Mediterranean lizard? Sci Nat 102(9–10):55–62
Simou C, Pafilis P, Skella A, Kourkouli A, Valakos ED (2008) Physiology of original and regenerated tails in Aegean wall lizard (Podarcis erhardii). Copeia 2008(3):504–509
Skoczylas R (1978) Physiology of the digestive tract. In: Gans C, Tinkle DW (eds) Biology of the reptilia. Academic Press, London, pp 589–717
Slos S, De Block M, Stoks R (2009) Autotomy reduces immune function and antioxidant defence. Biol Letters 5:90–92
Tsasi G, Pafilis P, Simou C, Valakos ED (2009) Predation pressure, density-induced stress and tail regeneration: a casual-nexus situation or a bunch of independent factors? Amphibia Reptilia 30(4):471–482
Van Damme R, Bauwens D, Verheyen RF (1991) The thermal dependence of feeding behaviour, food consumption and gut-passage time in the lizard Lacerta vivipara Jacquin. Funct Ecol 5(4):507–517
Vervust B, Pafilis P, Valakos ED, Van Damme R (2010) Anatomical and physiological changes associated with a recent dietary shift in the lizard Podarcis sicula. Physiol Biochem Zool 83(4):632–642
Vitt LJ, Congdon JD, Dickson NA (1977) Adaptive strategies and energetics of tail autonomy in lizards. Ecology 58(2):326–337
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Communicated by: Sven Thatje
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Sagonas, K., Karambotsi, N., Bletsa, A. et al. Tail regeneration affects the digestive performance of a Mediterranean lizard. Sci Nat 104, 22 (2017). https://doi.org/10.1007/s00114-017-1437-9
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DOI: https://doi.org/10.1007/s00114-017-1437-9