Further Studies on Water Absorption by Reptile Eggs

@article{Cunningham1938FurtherSO,
  title={Further Studies on Water Absorption by Reptile Eggs},
  author={Bert Cunningham and Elizabeth Huene},
  journal={The American Naturalist},
  year={1938},
  volume={72},
  pages={380 - 385}
}
Nitrogen excretion during embryonic development of the green iguana, Iguana iguana (Reptilia; Squamata).
TLDR
The pattern of nitrogen excretion of the green iguana was determined during embryonic development using samples from allantoic fluid and from the whole homogenized egg, and in hatchlings and adults using samples of blood plasma, suggesting that there is a mechanism present on theAllantoic membrane enabling the concentration of urea. Expand
Water exchange in reptile eggs: mechanism for transportation, driving forces behind movement, and the effects on hatchling size
TLDR
The majority of incubation is dominated by vapor water transport as the transport mechanism for water in reptile eggs, and the role of water exchange in determining hatchling size was assessed. Expand
The Effect of Varying Water Potential on Body Weight, Yolk and Fat Bodies in Neonate Green Iguanas
TLDR
This paper presents a new record of the Atlantic leatherback turtle (Dermochelys coriacea) from Labrador, dating from 1978 to 1984, which is the first record of this species from Labrador. Expand
An experimental analysis of the water relations of eggs of Blanding's turtles (Emydoidea blandingii)
TLDR
Variation in size of hatchlings was not as great as has been reported for other species with flexible-shelled eggs, owing presumably to the constraints on water exchange imposed by the more complex eggshells of Blanding's turtles. Expand
A study of the sources of nutrients for embryonic development in a viviparous lizard, Sphenomorphus quoyii
TLDR
The results show that embryos take up water and some inorganic ions from the mother but there is no evidence to suggest a dependence on the mother for organic nutrients. Expand
Possible adaptive value of water exchanges in flexible-shelled eggs of turtles.
Use of energy reserves by embryos of common snapping turtles (Chelydra serpentina) is related to the hydric conditions to which eggs are exposed during incubation and to the net exchanges of waterExpand
Water relations of pliable-shelled eggs of common snapping turtles (Chelydra serpentina).
TLDR
Pliable-shelled eggs of common snapping turtles were incubated at 29 °C under hydric conditions simulating those to which eggs are exposed in natural nests, and transpirational water loss from exposed surfaces of these eggs seemed to increase coincident with metabolism of developing embryos. Expand
Volumetric Reduction in Nest Contenis of Loggerhead Sea Turtles (Caretta caretta) (Reptilia, Testudines, Cheloniidae) on the Georgia Coast
Volumetric reduction of nest contents prior to hatchling emergence was deter- mined for natural hatchery nests of loggerhead sea turtles by implantation of a disc apparatus. The hypothesis thatExpand
Water Relations of Chelonian Eggs
TLDR
Water absorption equal to, or in excess of, water loss by transpiration assures that the original shape of the egg will be preserved, thereby guaranteeing that sufficient space is available within the egg for normal development of the embryo. Expand
THE PHYSIOLOGICAL ECOLOGY OF REPTILIAN EGGS AND EMBRYOS. AND THE EVOLUTION OF VIVIPARITY WITHIN THE CLASS REPTILIA
TLDR
Eggs of Crocodilia and Chelonia have a pair of egg membranes separating a thick layer of albumen from the calcareous shell, while eggs of oviparous Lepidosauria have only a single shell membrane, upon which relatively small amounts of calcium carbonate are deposited. Expand
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