LODEX : sémantisation & visualisation

Site exemple

Title

Impact of temperature on performance in two species of South African dwarf chameleon, Bradypodion pumilum and B. occidentale

Publication Year

2013

Author(s)
  • Segall, Marion
  • Tolley, Krystal A.
  • Vanhooydonck, Bieke
  • Measey, G. John
  • Herrel, Anthony
Source
JOURNAL OF EXPERIMENTAL BIOLOGY Volume: 216 Issue: 20 Pages: 3828-3836 Published: 2013
ISSN
0022-0949 eISSN: 1477-9145
Abstract

Temperature is an extrinsic factor that influences reptile behavior because of its impact on reptile physiology. Understanding the impact of temperature on performance traits is important as it may affect the ecology and fitness of ectothermic animals such as reptiles. Here, we examined the temperature dependence of performance in two species of South African dwarf chameleon (Bradypodion): one adapted to a semi-arid environment and one to a mesic environment. Ecologically relevant performance traits were tested at different temperatures to evaluate their thermal dependence, and temperature-performance breadths for 80% and 90% of each performance trait were calculated. Our results show distinct differences in the thermal dependence of speed-versus force-related performance traits. Moreover, our results show that the semi-arid species is better adapted to higher temperatures and as such has a better chance of coping with the predicted increases in environmental temperature. The mesic area-adapted species seems to be more sensitive to an increase in temperature and could therefore potentially be threatened by the predicted future climate change. However, further studies investigating the potential for acclimation in chameleons are needed to better understand how animals may respond to future climate change.

Author Keyword(s)
  • behavior
  • temperature
  • reptile
  • climate change
  • adaptation
KeyWord(s) Plus
  • LIZARD LACERTA-VIVIPARA
  • CLIMATE-CHANGE
  • GRIPPING PERFORMANCE
  • LOCOMOTOR IMPAIRMENT
  • THERMAL PREFERENCES
  • MUSCLE TEMPERATURE
  • BITE PERFORMANCE
  • ESCAPE TACTICS
  • REPRODUCTION
  • BEHAVIOR
ESI Discipline(s)
  • Biology & Biochemistry
Web of Science Category(ies)
  • Biology
Adress(es)

[Segall, Marion; Herrel, Anthony] MNHN, CNRS, UMR 7179, Dept Ecol & Gest Biodiversite, F-75231 Paris 5, France; [Tolley, Krystal A.] South African Natl Biodivers Inst, Appl Biodivers Res Div, ZA-7735 Cape Town, Western Cape, South Africa; [Tolley, Krystal A.] Univ Stellenbosch, Dept Bot & Zool, ZA-7602 Matieland, South Africa; [Vanhooydonck, Bieke] Univ Antwerp, Dept Biol, B-2610 Antwerp, Belgium; [Measey, G. John] Nelson Mandela Metropolitan Univ, Dept Zool, ZA-6031 Port Elizabeth, Eastern Cape, South Africa

Reprint Adress

Segall, M (reprint author), MNHN, CNRS, UMR 7179, Dept Ecol & Gest Biodiversite, 57 Rue Cuvier,Case Postale 55, F-75231 Paris 5, France.

Country(ies)
  • Belgium
  • France
  • South Africa
CNRS - Adress(es)
  • Mécanismes Adaptatifs et Evolution (MECADEV), UMR7179
Accession Number
WOS:000324911200013
uid:/LDMQRB3R
Powered by Lodex 8.18.5