Datos de alimentación de ofidios en el levante sur ibérico

  1. Vericad Coromina, Juan Ramón
  2. Escarré Esteve, Antoni
Journal:
Mediterránea: Serie de estudios sobre biología terrestre mediterránea

ISSN: 0210-5004

Year of publication: 1976

Issue: 1

Pages: 3-32

Type: Article

DOI: 10.14198/MDTRRA1976.1.01 DIALNET GOOGLE SCHOLAR lock_openRUA editor

More publications in: Mediterránea: Serie de estudios sobre biología terrestre mediterránea

Abstract

The trophic spectrum of five of the eight species of snakes occurring in the south east of Spain are studied here (C. hippocrepis, C. girondica, E. scalaris, M. monspessulanus and N. maura). The other three species studied slightly are, N. natrix, M. cucullatus and V. latasti. C. hippocrepis and E. scalaris are species basically homeotermophagous, C. girondica is near exclusively sauriophagous, N. maura shows a diet based mainly on amphibious but including as well fishes, arthropods and other invertebrates, and M. monspessulanus feeds itself with homeo and poiquilotermous in equal terms. The value of the trophic diversity per specie varies between 2.2 and 2.5 in C. hippocrepis, C. girondica, E. scalaris and N. maura and its value is 3.5 in M. monspessulanus the most euriphagous of the species. We compare our results with those obtained by Valverde (1967) and his hypothesis about the independence among the different microcommunities is discussed as well; With the data of dry weight it doesn't seem applicable such hypothesis towards herpetocenosis because snakes eat more than a 70 % of the biomass in the whole amphibious, ornitic and mammal taxocenosis. We suggest that the independence of each microcommunity of terrestrial vertebrates is an inverse function of group's antiquity.

Bibliographic References

  • BARBAULT, R., 1974. — Observations écologiques dans la savanne de Lamto (Cote d'lvoire): Structure de l'herpétocénose, Bull. Ecol. 5 (1): 7-25.
  • BRUNO, S., DOLCE, S., SAULI, G., y VEBER, M., 1973.-lntroduzione ad uno Studio sugli anfibi e rettili del carso triestino, Atti Mus civ. Stor. nat. Triestre 28 (2): 485-576.
  • GOWER, J. C , 1966. — Some distance properties of latent rood and vector methods used in multivariate analysis, Biometrika 53: 325-38.
  • HURTUBIA, J., y DI CASTRI, F., 1973,-Segregation of lizard Niches in the Mediterranean Región of Chile, en Mediterranean Type Ecosystems, Ecological Studies 7: Springer-Verlag.
  • MALUQUER, J., 1917. —Les serps de Catalunya, Publ. Junta Ciencias Naturals Mus. Barc. Sci. Nat. Opera, Serie Zoológica Vil, 87 pág.
  • MARGALEF, R., 1974.-Ecología, Editorial Omega, 951 pág.
  • MELLADO, J., AMORES, F., FERNANDEZ, F., e HIRALDO, F., 1974.-Estructura de una comunidad de lagartos del mediterráneo español. Policopia de la comunicación presentada en el Seminario sobre Estructura y Estabilidad del ecosistema en Sevilla, noviembre 1974.
  • PIANKA, E. P., 1969.-Sympatry of desert lizards (Ctenotus) in Western Australia, Ecology 50: 1012-1030.
  • ROSENZWEIG, M. L., 1966. — Community structure in sympatric Carnívora, J . Mammal 47: 602-612.
  • SHANNON, C. E., y WEAVER, W., 1963.-The mathematical theory of communication, Univ. Illinois Press., Urbana.
  • VALVERDE, J.-A., 1967. — Estructura de una comunidad mediterránea de vertebrados terrestres, Est. Biol. Doñana núm. 1, Mon. Cien. Moderna núm. 76, 218 páginas, C.S.I.C, Madrid.
  • VERICAD, J.-R., 1970. —Estudio faunístico y biológico de los mamíferos del Pirineo, P. Cent. pir. Biol. exp. 4: 7-229, Jaca
Data source: Dialnet