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Thermal loads experienced by a nesting female Testudo hermanni

Thermal loads experienced by a nesting female Testudo hermanni Short notes Thermal loads experienced by a nesting female Testudo hermanni R. Meek 8 Mountfield Road, Waterloo, Huddersfield, U.K. In a study of the thermal relations of the sea turtle Chelonia mydas, Spotila and Standora (1985) have shown that females nesting during the day would experience severe heat stress, even under cloudy weather and that to avoid overheating diurnal nesting at- tempts would involve returning to the water before egglaying was completed. Recent- ly, Swingland and Stubbs ( 1985) have recorded that in a terrestrial chelonian, Testudo hermanni, nesting occurs mostly in the early evening but suggested that this concerned environmental sex determination and was to enable the females to assess ground temperature characteristics since it is at this time that the relative temperatures available within a site are best indicated. However, evening nesting in T hermanni may also be a result of thermal constraints, particularly the avoidance of excessive heat loads which tortoises would experience during diurnal nesting. This paper reports on the heat loads experienced by a daytime nesting female T. hermanni in Yugoslavia. A female T. hermanni, one of two, was observed in the process of excavating a nesting site on the morning of June 2, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Thermal loads experienced by a nesting female Testudo hermanni

Meek, R.
Amphibia-Reptilia , Volume 9 (3): 2 – Jan 1, 1988
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
DOI
10.1163/156853888x00396
Publisher site
See Article on Publisher Site

Abstract

Short notes Thermal loads experienced by a nesting female Testudo hermanni R. Meek 8 Mountfield Road, Waterloo, Huddersfield, U.K. In a study of the thermal relations of the sea turtle Chelonia mydas, Spotila and Standora (1985) have shown that females nesting during the day would experience severe heat stress, even under cloudy weather and that to avoid overheating diurnal nesting at- tempts would involve returning to the water before egglaying was completed. Recent- ly, Swingland and Stubbs ( 1985) have recorded that in a terrestrial chelonian, Testudo hermanni, nesting occurs mostly in the early evening but suggested that this concerned environmental sex determination and was to enable the females to assess ground temperature characteristics since it is at this time that the relative temperatures available within a site are best indicated. However, evening nesting in T hermanni may also be a result of thermal constraints, particularly the avoidance of excessive heat loads which tortoises would experience during diurnal nesting. This paper reports on the heat loads experienced by a daytime nesting female T. hermanni in Yugoslavia. A female T. hermanni, one of two, was observed in the process of excavating a nesting site on the morning of June 2,

Journal

Amphibia-Reptilia – Brill

Published: Jan 1, 1988

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