Distribución espacial y temporal de Acanthodactylus erythrurus (Sauria: Lacertidae) en un arenal costero alicantino

  1. Seva Román, Eduardo
  2. Escarré Esteve, Antoni
Revista:
Mediterránea: Serie de estudios sobre biología terrestre mediterránea

ISSN: 0210-5004

Any de publicació: 1980

Número: 4

Pàgines: 133-161

Tipus: Article

DOI: 10.14198/MDTRRA1980.4.09 DIALNET GOOGLE SCHOLAR lock_openRUA editor

Altres publicacions en: Mediterránea: Serie de estudios sobre biología terrestre mediterránea

Resum

The spatial and temporal distribution by sex and size classes of the fringe-toed lizard (Acanthodactylus erythrurus, Schinz) are described here. This paper is a study of a reptile population in the sand dune ecosystem at El Saladar beach (Alicante, Spain). Three factors have been considered in the spatial distribution: slope, cover and different kinds of vegetation. As for the time factor in our observations, we have noted daily and seasonal changes. The species prefers low slope spots, covered in 10% and more, and places with types I and III for vegetation. Females (more adults than juveniles) reject medium and great slope zones. As for cover, male juveniles and adult females select zones covered in 30%. Type I vegetation is occupied by adult females preferably, because of the trophic and reproductive requirements. Type III is prefered by juvenile females and adult males. Type IV is neutral and type II is always depreciated. In activity pattern, juvenile individuals begin the daily activity before adult ones, except in April and July. In summer months, the activity curve appears bimodal because of the thermoregulation exigences, with a first peak greater than the second. In spring and fall months, the curve is unimodal. In winter months the activity continues in a few juveniles when the air temperature is highest in the day Sex ratio varies progressively between April and July.

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Fuente de los datos: Dialnet