Detailed Information on Publication Record
2016
Do female newts modify thermoregulatory behavior to manipulate egg size?
TOUFAROVÁ, Eliška and Lumír GVOŽDÍKBasic information
Original name
Do female newts modify thermoregulatory behavior to manipulate egg size?
Authors
TOUFAROVÁ, Eliška (203 Czech Republic, guarantor, belonging to the institution) and Lumír GVOŽDÍK (203 Czech Republic)
Edition
Journal of Thermal Biology, Pergamon Press, 2016, 0306-4565
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.157
RIV identification code
RIV/00216224:14310/16:00093984
Organization unit
Faculty of Science
UT WoS
000374359800009
Keywords in English
Amphibians; Egg size; Gravidity; Jelly coat; Mother-offspring conflict; Oviparity; Oviposition rate; Parental effect; Preferred temperature
Změněno: 4/4/2017 12:05, Ing. Andrea Mikešková
Abstract
V originále
Reproductive females manipulate offspring phenotypes by modifying conditions during embryogenesis. In ectotherms, the environmental control over embryogenesis is often realized by changes in maternal thermoregulation during gravidity. To determine if reproduction influences thermoregulatory behavior in species where females lay eggs shortly after fertilization (strict oviparity), we compared preferred body temperatures (T-p) between reproductive (egg-laying) and non-reproductive female newts, Ich-thyosaura alpestris. Next, we exposed reproductive females to temperatures mimicking T-p ranges of reproductive and non-reproductive individuals to find out whether the maternally modified thermal regime influences ovum and jelly coat volume, and early cleavage rates at the time of oviposition. In the thermal gradient, reproductive females maintained their body temperatures within a narrower range than non-reproductive individuals. The exposure of ovipositing females to temperatures preferred during their reproductive and non-reproductive period had a negligible influence on egg size and early cleavage rates. We conclude that the modification of maternal thermoregulatory behavior provides a limited opportunity to manipulate egg traits in newts. (C) 2016 Elsevier Ltd. All rights reserved.