Demography of Translocated Population of Toad-Headed Agama Phrynocephalus guttatus in Southern Kalmykya

K. A. Rogovin, D. V. Semenov


We translocated 80 individuals of Phrynocephalus guttatus guttatus into non-occupied isolated sand dune in Southern Kalmykya in June 1998. Observations during the following two years signify to the viability of the population. The demographic structure remained stabile since 1999, signifying to the congruence of habitat quality and ecological demands of the lizard species. We evaluated differences in the rate of postnatal development of males and females. In result, the number of sexually active males prevailed over the number of receptive females during the reproductive period, increasing probability of females’ pregnancy. Maximum life span of Ph. g. guttatus was estimated as up to four years.


population; demography; longevity; survival; Phrynocephalus; Kalmykya

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