Effect of water constraint on growth rate, activity and body temperature of yearling common lizard ( Lacerta vivipara )

Oecologia ◽  
1999 ◽  
Vol 118 (4) ◽  
pp. 423-430 ◽  
Author(s):  
Pauline Lorenzon ◽  
Jean Clobert ◽  
Anne Oppliger ◽  
Henry John-Alder
Keyword(s):  
Growth Rate ◽  
Body Temperature ◽  
Effect Of Water ◽  
Common Lizard ◽  
Lacerta Vivipara ◽  
Water Constraint

The regenerative capacity of the tail in embryonic and post-natal lizards (Lacerta vivipara Jacquin)

Development ◽  
1964 ◽  
Vol 12 (4) ◽  
pp. 769-786
Author(s):  
Lynette A. Moffat(née Holder) ◽  
A. D'A. Bellairs
Keyword(s):  
Experimental Techniques ◽  
Regenerative Capacity ◽  
Common Lizard ◽  
The Common ◽  
Lacerta Vivipara

Many studies have been made on autotomy and regeneration of the tail in lizards; for example those by Woodland (1920) and Hughes & New (1959) on geckos, by Slotopolsky (1922) on Lacerta, by Barber (1944) and Kamrin & Singer (1955) on Anolis, and by Simpson (1964) on Lygosoma. This work is concerned with the adult, and, so far as we are aware, no comparable studies on young and embryonic lizards have been made. Indeed, the application of experimental techniques to reptilian embryology is still in its infancy (see Holder & Bellairs, 1962, 1963). In 1956 Panigel found that embryos of the common lizard (Lacerta vivipara) would develop, sometimes until hatching, when removed from the mother and kept under sterile moist conditions in a form of culture. Their yolk is sufficient for nourishment, and the rudimentary type of allanto-placenta which he describes seems to have no significant nutritive function.

Host density and ectoparasite avoidance in the common lizard ( Lacerta vivipara )

Oecologia ◽  
1997 ◽  
Vol 111 (2) ◽  
pp. 183-188 ◽  
Author(s):  
Gabriele Sorci ◽  
Michelle de Fraipont ◽  
Jean Clobert
Keyword(s):  
Host Density ◽  
Common Lizard ◽  
The Common ◽  
Lacerta Vivipara

scholarly journals Thermal biology, activity, and population parameters of Cnemidophorus vacariensis (Squamata, Teiidae), a lizard endemic to southern Brazil

2011 ◽  
Vol 101 (4) ◽  
pp. 283-295 ◽  
Author(s):  
Rodrigo Caruccio ◽  
Renata Cardoso Vieira ◽  
Laura Verrastro ◽  
Denise Mello Machado
Keyword(s):  
Growth Rate ◽  
Population Structure ◽  
Body Temperature ◽  
Thermal Environment ◽  
Seasonal Activity ◽  
Southern Brazil ◽  
Body Temperatures ◽  
Thermal Biology ◽  
Environment Temperature ◽  
Average Body

We investigated the following aspects of the biology of a population of Cnemidophorus vacariensis Feltrim & Lema, 2000 during the four seasons: thermal biology, relationship with the thermal environment, daily and seasonal activity, population structure and growth rate. Cnemidophorus vacariensis is restricted to rocky outcrops of the "campos de cima da serra" grasslands on the Araucaria Plateau, southern Brazil, and is currently listed as regionally and nationally threatened with extinction. Data were collected from October 2004 through September 2007 in the state of Rio Grande do Sul. Sampling was conducted randomly from 08:00 a.m. to 6:00 p.m. The capture-mark-recapture method was employed. The lizards were captured by hand, and their cloacal temperature, sex, snout-ventral length (SVL), mass, and the temperature of their microhabitat (substrate temperature and air temperature) were recorded. Individuals were then marked by toe-clipping and released at the site of capture. Body temperatures were obtained for 175 individuals, activity data for 96 individuals, and data on population structure and growth for 59 individuals. All data were obtained monthly, at different times of the day. Cnemidophorus vacariensis average body temperature was 23.84ºC, ranging between 9.6 and 38.2ºC. Temperatures ranged between 21 and 29ºC. The correlation between external heat sources, substrate and air were positive and significant and there was a greater correlation between lizard's temperature and the temperature of the substrate (tigmothermic species). The relatively low body temperatures of individuals are associated with the climate of their environment (altitude up to 1,400 m), with large variations in temperature throughout the day and the year, and low temperatures in winter. The average body temperature observed for C. vacariensis was low when compared with that of phylogenetically related species, suggesting that the thermal biology of this species reflects adaptations to the temperate region where it lives. The monthly rates of activity of lizards were related to monthly variations in the ambient temperatures. Our data suggest that the daily and seasonal activity of C. vacariensis result from the interaction between two factors: changes in the environment temperature and the relationship between individuals and their thermal environment. The population structure of C. vacariensis varied throughout the study period, with maximum biomass in January and maximum density in February (recruitment period). The sex ratio diverged from the expected 1:1. The growth analysis showed a negative relationship between the growth rate of individuals and the SVL, revealing that young individuals grow faster than adults, a typical pattern for short-lived species. The population studied showed a seasonal and cyclical variation associated with the reproductive cycle. The life strategy of C. vacariensis seems to include adaptations to the seasonal variations in temperature, typical of its environment.

Cost of Reproduction and Cost of Parasitism in the Common Lizard, Lacerta vivipara

Oikos ◽  
1996 ◽  
Vol 76 (1) ◽  
pp. 121 ◽  
Author(s):  
Gabriele Sorci ◽  
Jean Clobert ◽  
Yannis Michalakis
Keyword(s):  
Cost Of Reproduction ◽  
Common Lizard ◽  
The Common ◽  
Lacerta Vivipara
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