Trophic habits and aquatic microhabitat use in gilled immature, paedomorphic and metamorphic Alpine newts (Triturus alpestris apuanus) in a pond in central Italy
Denoël, Mathieu; Andreone, F.
2003 • In Belgian Journal of Zoology, 133 (2), p. 95-102
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Facultative paedomorphosis; Resource partitioning; Habitat; Diet; Size-selective predation; Vacant niches; Feeding habits; Density regulation; Alpine newt; Polyphenism; Ichthyosaura alpestris; Apennines; Polymorphism; Eggs; Oophagy; Mesotriton alpestris apuanus; Triton alpestre; Amphibien; Italy; Amphibian; Micro-habitat use; Day and night sampling; Sex differences; Heterochrony; Pond
Abstract :
[en] Current evolutionary models suggest that the presence of heterogeneous habitats favours the evolution of polymorphisms. In such cases, alternative phenotypes can coexist because they use different resources. Facultative paedomorphosis is a heterochronic polymorphism in which a morph - the paedomorph - retains larval traits during the adult stage while the other morph - the metamorph - is fully metamorphosed. The aim of this study was to determine the microhabitat use and the diet of Alpine newt paedomorphs, metamorphs and immatures (Triturus alpestris apuanus) coexisting in a small pond in Tuscany, central Italy, i.e. in a habitat where dimorphism is not expected. Although the two adult morphs do not use exactly the same resources, resource partitioning was weaker than in deep Alpine lakes. Nevertheless, the diet of immature gilled newts (larvae) differed from that of adults (metamorphs and paedomorphs). While the larvae eat a large number of planktonic organisms, the adults focus on insect larvae and newt eggs. The differences in resource use favour the coexistence of aquatic juveniles and adults. In the studied pond, facultative paedomorphosis was previously shown to be favoured by a precocious maturity of the paedomorphs. This study shows that the coexistence of paedomorphs and metamorphs may also be supported by some dietary and spatial segregation, although any advantages gained by this pattern are rather limited in the adult stage.
Denoël, Mathieu ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale
Andreone, F.; Museo di Scienze Naturali di Torino, Italy
Language :
English
Title :
Trophic habits and aquatic microhabitat use in gilled immature, paedomorphic and metamorphic Alpine newts (Triturus alpestris apuanus) in a pond in central Italy
Publication date :
2003
Journal title :
Belgian Journal of Zoology
ISSN :
0777-6276
eISSN :
2295-0451
Publisher :
Societe Royale Zoologique De Belgique, Diepenbeek, Belgium
ANDREONE, F. & B. DORE (1991). New data on paedomorphosis in Italian populations of the Alpine newt, Triturus alpestris (Laurenti, 1768) (Caudata : Salamandridae). Herpetozoa, 4 : 149-156.
ANDREONE, F., B. DORE, P. USAI, & A. PARANINFO (1993). Skin morphology in larval, paedomorphic and metamorphosed alpine newts, Triturus alpestris apuanus. Alytes, 11 : 25-35.
ARNTZEN, J.W. & P. DE WIJER, (1989). On the distribution of the palearctic newts (genus Triturus) including the description of a five species pond in western France. Brit. Herp. Soc. Bull., 30 : 6-11.
AVERY, R.A. (1968). Food and feeding relations of three species of Triturus (Amphibia Urodela) during the aquatic phases. Oikos, 19 : 408-412.
BLAUSTEIN, A.R. & S.C. WALLS (1995). Aggregation and kin recognition. In HEATWOLE (ed), Amphibian biology - Social behaviour, Social Surrey Beatty & Soins, Chipling Norton : 568-602.
BOVERO, S., C. GIACOMA & F. ANDREONE (1997). Sexual selection and facultative paedomorphosis in the Alpine newt, Triturus alpestris apuanus (Bonaparte, 1839). Geobios, 21 : 287-292.
BRANA, F., M. DE LA HOZ & C. LASTRA (1986). Alimentacion y relaciones troficas entre las larvas de Triturus marmoratus, T. alpestris y T. helveticus (Amphibia : Caudata). Doñana, Acta Vert., 13 : 21-33.
BRAZ, E. & P. JOLY (1994). Micro-habitat use, resource partitioning and ecological succession in a size-structured guild of newt larvae (g. Triturus, Caudata, Amphibia). Arch. Hydrobiol., 131 : 129-139.
BREUIL, M. (1992). La néoténie dans le genre Triturus : mythes et réalités. Bull. Soc. Herp. Fr., 61 : 11-44.
CHACORNAC, J.M. & P. JOLY (1985). Activité prédatrice du triton alpestre (Triturus alpestris) dans un lac alpin (2125m, Alpes françaises). Acta Oecol., 6 : 93-103.
DENOËL, M. (2001). Avantages sélectifs d'un phénotype hétérochronique. Eco-éthologie des populations pédomorphiques du triton alpestre, Triturus alpestris (Amphibia, Caudata). PhD. Thesis, University of Liège, Belgium.
DENOËL, M. & P. JOLY (2000). Neoteny and progenesis as two heterochronic processes involved in paedomorphosis in Triturus alpestris (Amphibia, Caudata). Proc. Roy. Soc., Lond., B, 267 : 1481-1485.
DENOËL, M. & P. JOLY (2001a). Adaptive significance of facultative paedomorphosis in Triturus alpestris (Amphibia, Caudata) : resource partitioning in an Alpine lake. Freshwat. Biol., 46 : 1387-1396.
DENOËL, M. & P. JOLY (2001b). Size-related predation reduces intramorph competition in paedomorphic Alpine newts. Can. J. Zool., 79 : 943-948.
DENOËL, M. & P. PONCIN (2001) The effect of food on growth and metamorphosis of paedomorphs in Triturus alpestris apuanus, Arch. Hydrobiol., 152 : 661-670.
DENOËL, M., P. JOLY & P. PONCIN (1999). Facultative paedomorphosis in the Alpine newt, Triturus a. alpestris : feeding habits and habitat use in an Alpine lake. In: MIAUD & GUYETANT (eds), Current studies in Herpetology, Societas Europaea Herpetologica, Le Bourget du Lac : 89-94
DENOËL, M., P. PONCIN & J.C. RUWET (2001a). Sexual compatibility between two heterochronic morphs in the Alpine newt, Triturus alpestris. Anim. Behav., 61 : 559-566.
DENOËL, M., R. DUGUET, G. DZUKIC, M. KALEZIC & S. MAZZOTTI (2001b). Biogeography and ecology of paedomorphosis in Triturus alpestris (Amphibia, Caudata). J. Biogeogr. 28 : 1271-1280.
DENOËL, M., F. HERVANT, R. SCHABETSBERGER & P. JOLY (2002). Short- and long-term advantages of an alternative ontogenetic pathway. Biol. J. Linn. Soc. 77 : 105-112.
DOLMEN, D. & J.I. KOKSVIK, (1983). Food and feeding habits of Triturus vulgaris (L.) and T. cristatus (Laurenti) (Amphibia) in two bog tarns in central Norway. Amphibia-Reptilia, 4 : 17-24.
DOLMEN, D. (1988). Coexistence and niche segregation in the newts Triturus vulgaris (L.) and T. cristatus (Laurenti). Amphibia-Reptilia, 9 : 365-374.
DUBOIS, A. & M. BREUIL (1983). Découverte de Triturus alpestris (Laurenti, 1768) en Calabre (sud de l'Italie). Alytes, 2 : 9-18.
EHLINGER, T.J. (1990). Habitat choice and phenotypic-limited feeding efficiency in bluegill : individual differences and trophic polymorphism. Ecology, 71 : 886-896.
FASOLA, M. (1993). Resource partitioning by three species of newts during their aquatic phase. Ecography, 16 : 73-81.
FASOLA, M. & L. CANOVA (1992). Feeding habits of Triturus vulgaris, T. cristatus and T. alpestris (Amphibia, Urodela) in the Northern Apennines (Italy). Boll. Zool., 59, 273-280.
GABOR, C.R. (1996). Differential kin discrimination by red-spotted newts (Notophthalmus viridescens) and smooth newts (Triturus vulgaris). Ethology, 102 : 649-659.
GRIFFITHS, R.A. (1986). Feeding niche overlap and food selection in smooth and palmate newts, Triturus vulgaris and T. helveticus, at a pond in mid-Wales. J. Anim. Ecol., 55 : 201-214.
GRIFFITHS, R.A. (1987). Microhabitat and seasonal niche dynamics of smooth and palmate newts, Triturus vulgaris and T. helveticus, at a pond in mid-Wales. J. Anim. Ecol., 56 : 441-451.
GRIFFITHS, R.A. (1996). Newts and salamanders of Europe. Poyser Natural History, London.
GRIFFITHS, R.A. & V.J. MYLOTTE (1987). Microhabitat selection and feeding relations of smooth and warty newts, Triturus vulgaris and T. cristatus, at an upland pond in mid-Wales. Hol. Ecol., 10 : 1-7.
HARRIS, R.N. (1987). Density-dependent paedomorphosis in the salamander Notophthalmus viridescens dorsalis. Ecology, 68 : 705-712.
HINDAR, K. & B. JONSSON (1982). Habitat and food segregation of dwarf and normal Arctic charr (Salvelinus alpinus) from Vangsvatnet lake, western Norway. Can. J. Fish. Aqua. Sci., 39 : 1030-1045.
HUTCHINSON, G.E. (1959). Hommage to Santa-Rosalia or why are there so many kinds of animals? Am. Nat., 93 : 145-159.
JEHLE, R., P. BOUMA, M. SZTATECSNY & J.W. ARNTZEN (2000). High aquatic niche overlap in the newts Triturus cristatus and T. marmoratus (Amphibia, Urodela). Hydrobiol., 437 : 149-155.
JOLY, P. (1981). Le comportement prédateur du triton alpestre (Triturus alpestris). I. Etude desriptive. Biol. Behav., 6 : 339-355.
JOLY, P. (1987a). Activité prédatrice sur le site de reproduction chez le triton alpestre, Triturus alpestris (Amphibien, Urodèle). In Coll. Nat. CNRS Biologie des Populations, Lyon : 635-643.
JOLY, P. (1987b). Le régime alimentaire des amphibiens : méthodes d'étude. Alytes, 6 : 11-17.
JOLY, P. & C. GIACOMA (1992). Limitation of similarity and feeding habits in three syntopic species of newts (Triturus, Amphibia). Ecography, 15 : 401-411.
KALEZIC, M.L. & G. DZUKIC (1985). Ecological aspects of the smooth newt (Triturus vulgaris) paedomorphosis from Montenegro. Arh. Biol. Nauka, 37 : 43-50.
KALEZIC, M.L., D. CVETKOVIC, A. DJOROVIC & G. DZUKIC (1996). Alternative life-history pathways : paedomorphosis and adult fitness in European newts (Triturus vulgaris and T. alpestris). J. Zoo. Syst. Evol. Research, 34 : 1-7.
LAUDER, G.V. & H.B. SHAFFER (1993). Design of feeding systems in aquatic vertebrates : major patterns and their evolutionary interpretations. In : HANKEN & HALL (eds), Functional and evolutionary mechanisms, Univ. Chicago Press, Chicago : 113-149.
LEFF, L.G., & M.D. BACHMANN (1986). Ontogenetic changes in predatory behavior of larval tiger salamanders (Ambystoma tigrinum). Can. J. Zool., 64 : 1337-1344.
MALMQUIST, H.J. (1992). Phenotypic-specific feeding behaviour of two arctic charr Salvelinus alpinus morphs. Oecologia, 92 : 354-361.
MALMQUIST, H.J., S.S. SNORRASON, S. SKULASON, B. JONSSON, O.T. SANDLUND, & P.M. JONASSON (1992). Diet differentiation in polymorphic Arctic charr in Thinvallavatn, Iceland. J. Anim. Ecol., 61 : 21-35.
MIAUD, C. (1993). Predation on newt eggs (Triturus alpestris and T. helveticus) : identification of predators and protective role of oviposition behaviour. J. Zool., Lond., 231 : 575-582.
MIAUD, C. (1994). Role of wrapping behavior on egg survival in three species of Triturus (Amphibia : Urodela). Copeia, 1994 : 535-537.
MIAUD, C. (1995). Oviposition site selection in three species of European newts (Salamandridae) genus Triturus. Amphibia-Reptilia, 16 : 265-272.
ROBINSON, B.W., D.S. WILSON, A.S. MARGOSIAN & P.T. LOTITO (1993). Ecological and morphological differentiation of pumpkinseed sunfish in lakes without bluegill sunfish. Evol. Ecol., 7 : 451-464.
RYAN, T.J. & R.D. SEMLITSCH (1998). Intraspecific heterochrony and life history evolution : decoupling somatic and sexual development in a facultatively paedomorphic salamander. Proc. Natl. Acad. Sci. USA, 95 : 5643-5648.
SATTMANN, H. (1989). Uber die Nahrung des Bergmolches, Triturus alpestris (Laurenti, 1768), in der Aquatischen Phase (Caudata : Salamandridae). Herpetozoa, 2 : 37-49.
SCHABETSBERGER, R. (1993). Der Bergmolch (Triturus alpestris, Laurenti) als Endkonsument in einem Alpinen Karstsee (Dreibrüdersee, 1643 m, Totes Gebirge). Ph.D. Thesis, Salzburg Univ., Austria.
SCHABETSBERGER, R. & C.D. JERSABEK (1995). Alpine newts (Triturus alpestris) as top predators in a high-altitude karst lake : daily food consumption and impact on the copepod Arctodiaptomus alpinus. Freshwat. Biol., 33 : 47-61.
SCHOENER, T.W. (1970). Nonsynchronous spatial overlap of lizards in patchy habitats. Ecology, 51 : 408-418.
