Reproductive and feeding ecology of the amphisbaenian Anops kingii in east-central Argentina Laura E. Vega Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3250, 7600 Mar del Plata, Argentina e-mail: email@example.com Abstract. The reproductive and feeding ecology of Anops kingii was studied at the pampas mountain range of Argentina. Reproduction occurred from late winter (July) to early summer (December). Mean clutch size, based on the number of oviductal eggs, ranged from 2 to 4 eggs ( N x D 3), whereas mean clutch size based on the number of yolked follicles was 2.2 eggs. Adult females were signi cantly larger than males and all male individuals had conspicuous precloacal pores, whereas all females lacked them. Diet was not diverse and consisted mainly of coleopteran larvae. Foraging activity decreased during the coldest months of the year. Individuals were found under large rocks predominantly during winter and spring. This seasonal pattern of activity near the surface would seem to be related more to thermoregulatory than to trophic requirements. Introduction Amphisbaenians are characterized by morphological, behavioral and physiological adap- tations to fossorialism. Adequate ecological information on amphisbaenians, including physical attributes of the soils
Amphibia-Reptilia – Brill
Published: Jan 1, 2001
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