Publisher： John Wiley & Sons Inc
E-ISSN： 1939-9170|46|4|559-560
ISSN： 0012-9658
Source： Ecology, Vol.46, Iss.4, 1965-07, pp. : 559-560
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Temperature tolerances of Bufo hemiophrys and B. cognatus were examined by exposing specimens to lethal high temperatures. Bufo cognatus was able to tolerate significantly higher temperatures than B. hemiophrys. The results yielded an estimated interspecific difference in upper lethal temperature of 2.34 degree plus or minus 0.41 degree. This different was correlated with the geographic distributions of the two species; i.e., the more southern species, B. cognatus, was able to tolerate higher temperatures. This has been taken to indicate that a physiological specialization has taken place which is adaptive for the two species in the microclimates of their respective habitats.
Related content
Population Dynamics of the Manitoba Toad, Bufo Hemiophrys, In Northwestern Minnesota
Ecology, Vol. 45, Iss. 3, 1964-07 ,pp. :
Access to resources
Recommend
Growth, Local Movements and Hibernation of the Manitoba Toad, Bufo Hemiophrys
Ecology, Vol. 42, Iss. 4, 1961-10 ,pp. :