scholarly journals Male collared lizards,Crotaphytus collaris(Sauria: Crotaphytidae), signal females by broadcasting visual displays

2013 ◽  
Vol 108 (3) ◽  
pp. 636-646 ◽  
Author(s):  
Troy A. Baird
Keyword(s):  
Visual Displays ◽  
Crotaphytus Collaris ◽  
Collared Lizards

scholarly journals Integrating bioenergetics and conservation biology: thermal sensitivity of digestive performance in Eastern Collared Lizards (Crotaphytus collaris) may affect population persistence

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Casey L Brewster ◽  
Jason Ortega ◽  
Steven J Beaupre
Keyword(s):  
Thermal Sensitivity ◽  
Metabolizable Energy ◽  
Effect Of Temperature ◽  
Valuable Insight ◽  
Feeding Rates ◽  
Crotaphytus Collaris ◽  
Reduced Body ◽  
Heat Loads ◽  
Passage Times ◽  
Collared Lizards

Abstract Information on bioenergetics can provide valuable insight into the ecology, life history and population dynamics of organisms. For ectothermic animals, thermal sensitivity of digestion is an important determinant of net assimilated energy budgets. A recent study in the Ozark Mountains indicated that eastern collared lizards (Crotaphytus collaris) restricted to encroached glades (characterized by woody vegetation encroachment) experience reduced environmental heat loads and have reduced age-specific growth and reproductive rates compared to populations in intact glades. To assess the potential impact of reduced body temperatures on assimilation rates of C. collaris in encroached glades, we conducted feeding trials across four temperature treatments (28, 31, 34 and 37°C). We tested for temperature effects on voluntary feeding rates, passage times, apparent assimilated energy (AE) and metabolizable energy (ME). Passage times decreased and voluntary feeding rates increased significantly with increasing temperature. Consumption explained the majority of variance in AE and ME, followed by the effect of temperature treatments. Using data on voluntary feeding rates, passage times and ME as a function of temperature, we estimated over a 10-fold increase in predicted daily assimilated energy across temperature treatments (28°C = 0.58 kJ/day, 31°C = 1.20 kJ/day, 34°C = 4.30 kJ/day, 37°C = 7.95 kJ/day). Thus, lower heat loads in encroached glades may cause reduced body temperature and result in restricted energy assimilation rates. Our study provides a novel approach to the integration of bioenergetics and conservation and shows the efficacy of using information on digestive performance to investigate underlying mechanisms in a conservation context.

A Multidisciplinary Investigation of the Applicability of the Pleistocene Herpetofaunal Stability Model to Collared Lizards (Crotaphytus collaris)

1999 ◽  
Vol 13 ◽  
pp. 81 ◽  
Author(s):  
Delbert W. Hutchison ◽  
Simon T. Malcomber ◽  
L. Susan Pletscher
Keyword(s):  
Crotaphytus Collaris ◽  
Stability Model ◽  
Collared Lizards

Capital energy drives production of multiple clutches whereas income energy fuels growth in female collared lizards Crotaphytus collaris

Oikos ◽  
2011 ◽  
Vol 120 (6) ◽  
pp. 915-921 ◽  
Author(s):  
Rorry S. Telemeco ◽  
Troy A. Baird
Keyword(s):  
Crotaphytus Collaris ◽  
Collared Lizards

Husbandry and Captive Propagation of Eastern Collared Lizards (Crotaphytus collaris)

2021 ◽  
Vol 30 (4) ◽  
Author(s):  
Brandon J. Louth ◽  
J. Jill Heatley
Keyword(s):  
Crotaphytus Collaris ◽  
Captive Propagation ◽  
Collared Lizards

scholarly journals Isolation and characterization of 11 polymorphic microsatellite loci in collared lizards (Crotaphytus collaris)

2004 ◽  
Vol 4 (4) ◽  
pp. 554-556 ◽  
Author(s):  
DELBERT W. HUTCHISON ◽  
JARED L. STRASBURG ◽  
JENNIFER A. BRISSON ◽  
SHAWN CUMMINGS
Keyword(s):  
Microsatellite Loci ◽  
Crotaphytus Collaris ◽  
Isolation And Characterization ◽  
Polymorphic Microsatellite ◽  
Collared Lizards

FIELD USE OF MAXIMAL SPRINT SPEED BY COLLARED LIZARDS (CROTAPHYTUS COLLARIS): COMPENSATION AND SEXUAL SELECTION

Evolution ◽  
2006 ◽  
Vol 60 (9) ◽  
pp. 1888 ◽  
Author(s):  
Jerry F. Husak ◽  
Stanley F. Fox
Keyword(s):  
Sexual Selection ◽  
Crotaphytus Collaris ◽  
Sprint Speed ◽  
Collared Lizards

Age and Gender-Related Differences in the Social Behavior and Mating Success of Free-Living Collared Lizards, Crotaphytus collaris

Copeia ◽  
1996 ◽  
Vol 1996 (2) ◽  
pp. 336 ◽  
Author(s):  
Troy A. Baird ◽  
Mark A. Acree ◽  
Chris L. Sloan
Keyword(s):  
Social Behavior ◽  
Mating Success ◽  
Free Living ◽  
Age And Gender ◽  
Crotaphytus Collaris ◽  
The Social ◽  
And Gender ◽  
Collared Lizards

Agonistic Behavior Elicited by Electrical Stimulation of the Brain in Western Collared Lizards, Crotaphytus collaris

1978 ◽  
Vol 15 (5-6) ◽  
pp. 446-469 ◽  
Author(s):  
Richard A. Sugerman ◽  
Leo S. Demski
Keyword(s):  
Electrical Stimulation ◽  
Agonistic Behavior ◽  
Crotaphytus Collaris ◽  
The Brain ◽  
Stimulation Of ◽  
Collared Lizards
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