Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 236-239 |
| Number of pages | 4 |
| Journal | Biotropica |
| Volume | 20 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Sep 1988 |
| Externally published | Yes |
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Thermal relations of some tropical frogs along an altitudinal gradient. / Christian, K.A.; Nunez, F.; Clos, L.; Diaz, Luis H.
In: Biotropica, Vol. 20, No. 3, 09.1988, p. 236-239.Research output: Contribution to journal › Article
TY - JOUR
T1 - Thermal relations of some tropical frogs along an altitudinal gradient
AU - Christian, K.A.
AU - Nunez, F.
AU - Clos, L.
AU - Diaz, Luis H.
PY - 1988/9
Y1 - 1988/9
N2 - Temperate-zone amphibians generally show an acclimation response of tolerance to high temperatures (CTMax). The Puerto Rican frog Eleutherodactylus portoricensis failed to show an acclimation response, but did show a negative correlation between elevation and CTMax. Subsequently, E. portoricensis, as originally understood, was found to consist of a widespread species (Eleutherodactylus coqui) and a species restricted to high elevations (E. portoricensis). CTMax was determined for these 2 species. Differences previously believed to be attributable to elevation are, in fact, interspecific differences. There were no differences in CTMax of E. coqui from different elevations, but E. portoricensis had significantly lower CTMax. E. coqui failed to show an acclimation response. The few species of tropical amphibians that have been investigated suggest that, unlike most temperate-zone species, some tropical species fail to show an acclimation response, and some fail to show a negative correlation between CTMax and elevation.
AB - Temperate-zone amphibians generally show an acclimation response of tolerance to high temperatures (CTMax). The Puerto Rican frog Eleutherodactylus portoricensis failed to show an acclimation response, but did show a negative correlation between elevation and CTMax. Subsequently, E. portoricensis, as originally understood, was found to consist of a widespread species (Eleutherodactylus coqui) and a species restricted to high elevations (E. portoricensis). CTMax was determined for these 2 species. Differences previously believed to be attributable to elevation are, in fact, interspecific differences. There were no differences in CTMax of E. coqui from different elevations, but E. portoricensis had significantly lower CTMax. E. coqui failed to show an acclimation response. The few species of tropical amphibians that have been investigated suggest that, unlike most temperate-zone species, some tropical species fail to show an acclimation response, and some fail to show a negative correlation between CTMax and elevation.
KW - altitudinal gradient
KW - critical thermal maxima
KW - frog
KW - tropical, USA, Puerto Rico, Eleutherodactylus coqui
KW - Eleutherodactylus portoricensis
UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024225741&partnerID=40&md5=c6754280e29eddec5dd5bd5416b4b0d6
U2 - 10.2307/2388239
DO - 10.2307/2388239
M3 - Article
VL - 20
SP - 236
EP - 239
JO - Biotropica
JF - Biotropica
SN - 0006-3606
IS - 3
ER -