Do female newts modify thermoregulatory behavior to manipulate
egg size?

J 2016

Do female newts modify thermoregulatory behavior to manipulate egg size?

TOUFAROVÁ, Eliška and Lumír GVOŽDÍK

Basic 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

DOI

http://dx.doi.org/10.1016/j.jtherbio.2016.02.001

UT WoS

000374359800009

Keywords in English

Amphibians; Egg size; Gravidity; Jelly coat; Mother-offspring conflict; Oviparity; Oviposition rate; Parental effect; Preferred temperature

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.

Citovat

TOUFAROVÁ, Eliška and Lumír GVOŽDÍK. Do female newts modify thermoregulatory behavior to manipulate egg size? Journal of Thermal Biology. Pergamon Press, 2016, vol. 57, April, p. 72-77. ISSN 0306-4565. Available from: https://dx.doi.org/10.1016/j.jtherbio.2016.02.001.

@article{1376374,
   author = {Toufarová, Eliška and Gvoždík, Lumír},
   article_number = {April},
   doi = {http://dx.doi.org/10.1016/j.jtherbio.2016.02.001},
   keywords = {Amphibians; Egg size; Gravidity; Jelly coat; Mother-offspring conflict; Oviparity; Oviposition rate; Parental effect; Preferred temperature},
   language = {eng},
   issn = {0306-4565},
   journal = {Journal of Thermal Biology},
   title = {Do female newts modify thermoregulatory behavior to manipulate egg size?},
   volume = {57},
   year = {2016}
}

TY  - JOUR
ID  - 1376374
AU  - Toufarová, Eliška - Gvoždík, Lumír
PY  - 2016
TI  - Do female newts modify thermoregulatory behavior to manipulate egg size?
JF  - Journal of Thermal Biology
VL  - 57
IS  - April
SP  - 72-77
EP  - 72-77
PB  - Pergamon Press
SN  - 03064565
KW  - Amphibians
KW  - Egg size
KW  - Gravidity
KW  - Jelly coat
KW  - Mother-offspring conflict
KW  - Oviparity
KW  - Oviposition rate
KW  - Parental effect
KW  - Preferred temperature
N2  - 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.
ER  -

TOUFAROVÁ, Eliška and Lumír GVOŽDÍK. Do female newts modify thermoregulatory behavior to manipulate egg size? \textit{Journal of Thermal Biology}. Pergamon Press, 2016, vol.~57, April, p.~72-77. ISSN~0306-4565. Available from: https://dx.doi.org/10.1016/j.jtherbio.2016.02.001.

Detailed Information on Publication Record