Symmetrisches Dimethylarginin (SDMA) als diagnostischer Parameter bei Griechischen Landschildkröten (Testudo hermanni)

2020 ◽  
Author(s):  
V. Krüger ◽  
B. Altherr ◽  
N. Pantchev ◽  
S. Öfner ◽  
Y. Zablotski ◽  
...  
Keyword(s):  
Testudo Hermanni

Distribution, Size, and Demographics of Eastern Hermann's Tortoise, Testudo hermanni boettgeri, in Turkey

2019 ◽  
Vol 18 (2) ◽  
pp. 210 ◽  
Author(s):  
Oguz Turkozan ◽  
Can Yilmaz ◽  
Şule Karakaya ◽  
Sezgin Karaman ◽  
Celal Ulger
Keyword(s):  
Testudo Hermanni

Courtship displays and mounting calls are honest, condition-dependent signals that influence mounting success in Hermann's tortoises

2005 ◽  
Vol 83 (10) ◽  
pp. 1306-1313 ◽  
Author(s):  
P Galeotti ◽  
R Sacchi ◽  
M Fasola ◽  
D Pellitteri Rosa ◽  
M Marchesi ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Call Rate ◽  
Multiple Traits ◽  
Sexual Interaction ◽  
Courtship Intensity ◽  
Male Condition ◽  
Testudo Hermanni ◽  
Courtship Signals ◽  
Male Morphology ◽  
Rate Frequency

Like other terrestrial tortoises, the courtship behaviour of Hermann's tortoises (Testudo hermanni Gmelin, 1789) is based on a multiple signalling system that involves visual, olfactory, tactile, and acoustic signals. In this study, we analysed relationships between male morphology, hematological profile, courtship intensity, vocalizations, and mounting success in Hermann's tortoises breeding in semi-natural enclosures to investigate the effects of male condition on signals exhibited during courtship and on their mounting success. Results showed that mounting success of Hermann's tortoise males was positively affected by the number of sexual interactions/h, number of bites given to the female during interactions, and by call rate and frequency-modulation range. Call rate, frequency-modulation range, and number of sexual interaction/h increased with hematocrit value, while number of bites given to females decreased with leukocyte concentration. In conclusion, courtship signals exhibited by Hermann's tortoise males, including vocalizations, reliably reveal different components of male condition, and females may use these multiple traits to choose high-quality partners. This is the first study documenting the condition-dependent nature of tortoise courting signals and their effect on male mounting success.

Respiratory Exchange and Body Size in the Aldabra Giant Tortoise

1971 ◽  
Vol 55 (3) ◽  
pp. 651-665 ◽  
Author(s):  
G. M. HUGHES ◽  
R. GAYMER ◽  
MARGARET MOORE ◽  
A. J. WOAKES
Keyword(s):  
Body Weight ◽  
Body Size ◽  
Metabolic Rate ◽  
Relative Proportion ◽  
The Body ◽  
O2 Consumption ◽  
Weight Range ◽  
Testudo Hermanni ◽  
The Mean ◽  
Good Agreement

1. The O2 consumption and CO2 release of nine giant tortoises Testudo gigantea (weight range 118 g-35·5 kg) were measured at a temperature of about 25·5°C. Four European tortoises Testudo hermanni (weight range 640 g-2·16 kg) were also used. The mean RQ values obtained were 1·01 for T. gigantea and 0·97 for T. hermanni. These values were not influenced by activity or size. 2. The data was analysed by plotting log/log regression lines relating body weight to O2 consumption. Both maximum and minimum metabolic rates recorded for each individual T. gigantea showed a negative correlation with body weight. For active rates the relation was O2 consumption = 140·8W0·97, whereas for inactive animals O2 consumption = 45·47W0·82. 3. The maximum rates were obtained from animals that were observed to be active in the respirometer and the minimum rates from animals that remained quiet throughout. The scope for activity increased with body size, being 82 ml/kg/h for animals of 100 g and 103 ml/kg/h for 100 kg animals. The corresponding ratio between maximum and minimum rates increases from about 2 to 6 for the same weight range. 4. Values for metabolic rate in T. hermanni seem to be rather lower than in T. gigantea. Analysis of the relative proportion of the shell and other organs indicates that the shell forms about 31% of the body weight in adult T. hermanni but only about 18% in T. gigantea of similar size. The shell is not appreciably heavier in adult T. gigantea (about 20%). 5. Data obtained for inactive animals is in good agreement with results of other workers using lizards and snakes. Previous evidence suggesting that chelonians show no reduction in metabolic rate with increasing size is not considered to conflict with data obtained in the present work.

Population and Thermal Ecology of Testudo hermanni hermanni in the Tolfa Mountains of Central Italy

2010 ◽  
Vol 9 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Ernesto Filippi ◽  
Lorenzo Rugiero ◽  
Massimo Capula ◽  
Russell L. Burke ◽  
Luca Luiselli
Keyword(s):  
Central Italy ◽  
Thermal Ecology ◽  
Testudo Hermanni ◽  
Testudo Hermanni Hermanni

scholarly journals Testudo hermanni (Gmelin 1789) – Hermann’s Tortoise

2011 ◽  
pp. 059.1-059.20 ◽  
Author(s):  
Albert Bertolero ◽  
Marc Cheylan ◽  
Adrian Hailey ◽  
Barbara Livoreil ◽  
Ronald Willemsen
Keyword(s):  
Testudo Hermanni

scholarly journals Erythrocyte D -Aminolevulinic Acid Dehydratase (Ala-D) Activity and Blood Lead Level (Pb-B) of Tortoise (Testudo Hemanni, Gmel.) of Vicinity of Lead and Zinc Smelter “Trepca” in Kosova

1998 ◽  
Vol 1 (1) ◽  
pp. 24-25
Author(s):  
I. Elezaj ◽  
D.A. Rozhaja
Keyword(s):  
Aminolevulinic Acid ◽  
Lead Level ◽  
Blood Lead ◽  
Significant Negative Correlation ◽  
Polluted Environment ◽  
Zinc Smelter ◽  
Acid Dehydratase ◽  
Lead And Zinc ◽  
Testudo Hermanni ◽  
Dehydratase Activity

In comparison with control animals, a significant negative correlation (r = 0.77 -), between lead level and the activity of daminolevulinic acid dehydratase activity in the blood of land turtle (Testudo hermanni, Gmel.) caught in five different localities from heavy polluted environment of lead and zinc smelter “Trepca” was found. The concentration ratio of lead level in blood between control animals and those from the vicinity of smelter was 10:160 % and ratio of ALA-D activity was 10:18,3 U/LE.

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