TY - JOUR
T1 - Endocrinology of oviposition in the tuatara (Sphenodon punctatus)-II. Plasma arginine vasotocin concentrations during natural nesting
AU - Guillette, Louis J.
AU - Propper, Catherine R.
AU - Cree, Auson
AU - Doresl, Robert M.
N1 - Funding Information:
Acknowledgements-We thankM ike Thompsona nd Jennie Hay for excellent field assistancea nd companionship. Thanks are also due to the NZ Departmento f Conservation, especiallyD on Newman,N oel Hellyera nd Ian Govey, for assistancwe ith permitsT. his work wass upportedin part by grantsf rom: National ScienceF oundation-USA (DCB 84-16707N),Z Departmenot f ConservationN, Z University Grants Committee, NZ Lottery Board, University of Florida (Divisiono f SponsoredR esearch)V, ictoria University of Wellington (Internal Research Committee and School of BiologicalS ciencesa) nd WWF-NZ.
PY - 1991
Y1 - 1991
N2 - 1. 1. Plasma concentrations of the neurohypophysial arginine vasotocin (AVT) were measured during three stages of natural nesting [nest digging (N = 16), oviposition (N = 6), nest guarding (N = 6)] in the rare New Zealand reptile, the tuatara (Sphenodon punctatus). 2. 2. Nest digging females (X ± 1 SE: 134.9 ± 15.0 pg/ml) exhibited elevated but significantly lower concentrations of plasma AVT compared to those observed during oviposition (216.0 ± 28.1 pg/ml). Nest guarding females (54.6 ± 29.8 pg/μl) had plasma AVT concentrations significantly lower than other stages. 3. 3. These data are similar to those reporting elevated plasma AVT concentrations during oviposition in sea turtles but tuatara exhibit significantly lower plasma AVT values (10-fold difference). Plasma AVT concentrations reported for tuatara and birds are comparable.
AB - 1. 1. Plasma concentrations of the neurohypophysial arginine vasotocin (AVT) were measured during three stages of natural nesting [nest digging (N = 16), oviposition (N = 6), nest guarding (N = 6)] in the rare New Zealand reptile, the tuatara (Sphenodon punctatus). 2. 2. Nest digging females (X ± 1 SE: 134.9 ± 15.0 pg/ml) exhibited elevated but significantly lower concentrations of plasma AVT compared to those observed during oviposition (216.0 ± 28.1 pg/ml). Nest guarding females (54.6 ± 29.8 pg/μl) had plasma AVT concentrations significantly lower than other stages. 3. 3. These data are similar to those reporting elevated plasma AVT concentrations during oviposition in sea turtles but tuatara exhibit significantly lower plasma AVT values (10-fold difference). Plasma AVT concentrations reported for tuatara and birds are comparable.
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U2 - 10.1016/0300-9629(91)90298-Q
DO - 10.1016/0300-9629(91)90298-Q
M3 - Article
AN - SCOPUS:0025946998
VL - 100
SP - 819
EP - 822
JO - Comparative Biochemistry and Physiology -- Part A: Physiology
JF - Comparative Biochemistry and Physiology -- Part A: Physiology
SN - 0300-9629
IS - 4
ER -