Abstract
1.We investigated whether heat tolerance has a crucial impact on the altitudinal distribution of a high-altitude lizard, Takydromus hsuehshanensis (>1800 m altitude).2.We measured and compared its heat tolerance with that of another two lowland species. Heat tolerance measurement included critical thermal maximum (CTMax) and survival rates under three fluctuating daily temperature treatments over a 3-month period. Two of the three temperature treatments, the extremely high temperature (EH treatment) and the average temperature (H treatment), were set to approximate lowland summer temperatures. The third one was set to approximate cool temperature in mountain areas (C treatment).3.Our results showed that (1) CTMax of T. hsuehshanensis was higher than the summer temperature in the lowland areas, and not significantly lower than that of two other lowland species, (2) T. hsuehshanensis survived the H and EH treatments over a 3-month period and its survival rate was not significantly lower than that of the other two lowland species. Therefore, T. hsuehshanensis was not only able to tolerate high temperatures mimicking lowland areas for a short period of time, but also for a much longer period of time.4.We conclude that the heat tolerance of T. hsuehshanensis is not a crucial factor limiting its current altitudinal distribution.
| Original language | English |
|---|---|
| Pages (from-to) | 48-56 |
| Number of pages | 9 |
| Journal | Journal of Thermal Biology |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 Jan 1 |
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Keywords
- Altitude
- Distribution
- Lizard
- Temperature
- Thermal tolerance
ASJC Scopus subject areas
- Biochemistry
- Physiology
- Agricultural and Biological Sciences(all)
- Developmental Biology
Cite this
Heat tolerance and altitudinal distribution of a mountainous lizard, Takydromus hsuehshanensis, in Taiwan. / Huang, Shu Ping; Tu, Ming Chung.
In: Journal of Thermal Biology, Vol. 33, No. 1, 01.01.2008, p. 48-56.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Heat tolerance and altitudinal distribution of a mountainous lizard, Takydromus hsuehshanensis, in Taiwan
AU - Huang, Shu Ping
AU - Tu, Ming Chung
PY - 2008/1/1
Y1 - 2008/1/1
N2 - 1.We investigated whether heat tolerance has a crucial impact on the altitudinal distribution of a high-altitude lizard, Takydromus hsuehshanensis (>1800 m altitude).2.We measured and compared its heat tolerance with that of another two lowland species. Heat tolerance measurement included critical thermal maximum (CTMax) and survival rates under three fluctuating daily temperature treatments over a 3-month period. Two of the three temperature treatments, the extremely high temperature (EH treatment) and the average temperature (H treatment), were set to approximate lowland summer temperatures. The third one was set to approximate cool temperature in mountain areas (C treatment).3.Our results showed that (1) CTMax of T. hsuehshanensis was higher than the summer temperature in the lowland areas, and not significantly lower than that of two other lowland species, (2) T. hsuehshanensis survived the H and EH treatments over a 3-month period and its survival rate was not significantly lower than that of the other two lowland species. Therefore, T. hsuehshanensis was not only able to tolerate high temperatures mimicking lowland areas for a short period of time, but also for a much longer period of time.4.We conclude that the heat tolerance of T. hsuehshanensis is not a crucial factor limiting its current altitudinal distribution.
AB - 1.We investigated whether heat tolerance has a crucial impact on the altitudinal distribution of a high-altitude lizard, Takydromus hsuehshanensis (>1800 m altitude).2.We measured and compared its heat tolerance with that of another two lowland species. Heat tolerance measurement included critical thermal maximum (CTMax) and survival rates under three fluctuating daily temperature treatments over a 3-month period. Two of the three temperature treatments, the extremely high temperature (EH treatment) and the average temperature (H treatment), were set to approximate lowland summer temperatures. The third one was set to approximate cool temperature in mountain areas (C treatment).3.Our results showed that (1) CTMax of T. hsuehshanensis was higher than the summer temperature in the lowland areas, and not significantly lower than that of two other lowland species, (2) T. hsuehshanensis survived the H and EH treatments over a 3-month period and its survival rate was not significantly lower than that of the other two lowland species. Therefore, T. hsuehshanensis was not only able to tolerate high temperatures mimicking lowland areas for a short period of time, but also for a much longer period of time.4.We conclude that the heat tolerance of T. hsuehshanensis is not a crucial factor limiting its current altitudinal distribution.
KW - Altitude
KW - Distribution
KW - Lizard
KW - Temperature
KW - Thermal tolerance
UR - http://www.scopus.com/inward/record.url?scp=37349079093&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37349079093&partnerID=8YFLogxK
U2 - 10.1016/j.jtherbio.2007.09.007
DO - 10.1016/j.jtherbio.2007.09.007
M3 - Article
AN - SCOPUS:37349079093
VL - 33
SP - 48
EP - 56
JO - Journal of Thermal Biology
JF - Journal of Thermal Biology
SN - 0306-4565
IS - 1
ER -