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Physiological basis of habitat partitioning in Jamaican Eleutherodactylus
(Springer: Oecologia, 1977-12)
Rate of evaporation, resistance to drying, temperature selection, and critical thermal maximum were measured for Jamaican Eleutherodactylus acclimated to 20° C and a 12:12 L:D photoperiod. Two introduced species, E. ...
Ontogenetic change in molecular and functional properties of blood of garter snakes, Thamnophis sirtalis
(Wiley: Journal of Experimental Zoology, 1977-07)
At birth the blood of garter snakes (Thamnophis sirtalis) has high oxygen affinity (P50 at 25°C and pH 7.2 = 21 mm Hg), low hematocrit (14%), and a high proportion of inactive hemoglobin (44%). Growth of the snakes is ...
Acid precipitation and reproductive success of ambystoma salamanders
(Springer: Water, Air and Soil Pollution, 1977-03)
: The two species of mole salamander that occur in the Ithaca, New York, region (Ambystoma maculatum and A. jeffersonianum) breed in temporary ponds that are formed by accumulation of melted snow and spring rains. Water ...
Ontogenetic change in blood oxygen capacity and maximum activity in garter snakes (Thamnophis sirtalis)
(Springer: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1977-01)
There is an ontogenetic increase in the time that garter snakes (Thamnophis s. sirtalis) can maintain maximum activity at 25°C. Newborn snakes are exhausted by 3–5 min of activity while adults can be active for 20–25 min. ...