Evaporative water loss in scaleless snakes

Evaporative water loss in scaleless snakes.

1. Rates of water loss were measured in two aberrant scaleless water snakes, Natriu sipedon, and in six normal animals. 2. Pulmocutaneous water loss of the scaleless animals was equal to or less than that of the controls at 20, 27, and 34°C. 3. The thermal dependence of pulmocutaneous water loss in all snakes was low (Q,, = 1.31-1.89). 4. The proportion of total water loss due to cutaneous evap...

Evaporative water loss from rats in the heat.

1968.-In rats in the heat water lost through saliva is the major component of evaporative water loss. Total evaporative water loss was measured from normal and desalivated rats and salivary evaporative water loss was then estimated as the difference in evaporation between normal and desalivated rats. Above 32 C the salivary evaporation gradually increased up to 44 C which was the highest experi...

A Phylogenetic Perspective of Evaporative Water Loss in Birds

ABSTR•C?.--Allometry, the study of the consequences of body size on form and function, has been a powerful investigative tool in avian biology. Comparison of phenotypic data with allometric reference equations permits the identification of possible adaptations and the formulation of hypotheses for testing. The standard allometric equation that relates total evaporative water loss (TEWL) to body...

A Scaleless Snake: Tests of the Role of Reptilian Scales in Water Loss and Heat Transfer

Evaporative water loss, relative water economy and evaporative partitioning of a heterothermic marsupial, the monito del monte (Dromiciops gliroides).

We examine here evaporative water loss, economy and partitioning at ambient temperatures from 14 to 33°C for the monito del monte (Dromiciops gliroides), a microbiotheriid marsupial found only in temperate rainforests of Chile. The monito's standard evaporative water loss (2.58 mg g(-1) h(-1) at 30°C) was typical for a marsupial of its body mass and phylogenetic position. Evaporative water loss...