scholarly journals Optimal Body Mass-Length Ratio During Hibernation for Emys orbicularis (Linnaeus, 1758) – European Pond Turtle

Heliyon ◽  
2021 ◽  
pp. e07607
Author(s):  
Ziegler Carina ◽  
Mărginean George-Ioan ◽  
Vitan Dragoș
Keyword(s):  
Body Mass ◽  
Length Ratio ◽  
Emys Orbicularis ◽  
Pond Turtle

The morphometrics and colouration of the European pond turtle Emys orbicularis in Lubuskie province (West Poland)

Biologia ◽  
2006 ◽  
Vol 61 (5) ◽  
Author(s):  
Bartłomiej Najbar ◽  
Ewa Szuszkiewicz
Keyword(s):  
Endangered Species ◽  
Body Mass ◽  
Carapace Length ◽  
Egg Laying ◽  
Emys Orbicularis ◽  
Straight Carapace Length ◽  
Pond Turtle ◽  
The Past

AbstractThe European pond turtle Emys orbicularis, is an endangered species in Poland. The region of the Ilanka River, in the western part of the country (Lubuskie province), is the most densely inhabited area by the species. Several populous sites are dispersed over the whole area of the province. Over the past 10 years, 279 turtles were captured at 11 sites. In 218 individuals, those with a straight carapace length (SCL) between 2.10–12.10 cm, sex was not determined; the remaining 61 with SCL 13.33–19.85 cm were sexed. Females had bigger bodies and were heavier than males. The SCL of females was 17.10 ± 1.7 cm (average ± SD, n = 33), their body mass (BM) was 790.6 ± 228.7 g (n = 27), and in the case of males SCL was 15.44 ± 1.5 cm and BM was 554.2 ± 138.8 g (n = 28). SCL of the smallest egg laying female was 15.30 cm, and SCL of the smallest mating male was 13.33 cm. The colouration of the turtles which undergoes change with age can be varied.

Hybridisation between turtle subspecies: a case study with the European pond turtle (Emys orbicularis)

2016 ◽  
Vol 18 (2) ◽  
pp. 287-296 ◽  
Author(s):  
Matthieu Raemy ◽  
Uwe Fritz ◽  
Marc Cheylan ◽  
Sylvain Ursenbacher
Keyword(s):  
Emys Orbicularis ◽  
Pond Turtle

Basking Site Selection and Usage Strategies of the European Pond Turtle, Emys orbicularis (Linnaeus, 1758) in Babat valley (Gödöllő, Hungary)

2021 ◽  
Vol 28 (4) ◽  
pp. 175-184
Author(s):  
Gergő Erdélyi ◽  
Borbála Szabó ◽  
István Kiss
Keyword(s):  
Site Selection ◽  
Habitat Characteristics ◽  
Freshwater Turtles ◽  
Emys Orbicularis ◽  
Pond Turtle ◽  
Site Type ◽  
Type Selection ◽  
Body Sizes ◽  
Negative Effect ◽  
Selection Of

Sun basking is the most common method for freshwater turtles, such as the European pond turtle, to maintain optimal body temperature. The attributes of the macro- and microhabitat features around the basking sites affect the basking site selection of the European pond turtle. To protect the European pond turtle, it is important to know the basking habits among the biological characteristics of the species, along with the effects of the habitat characteristics and the choice of the type of basking sites. The purpose of our research was to detect the effects of macro- and microhabitat features on the selection of basking sites. We wanted to determine basking site type selection according to the carapace length classes and if there is any difference in the choice of basking trunks and branches with different thicknesses. Turtles choose basking sites with less closed vegetation in their environment. We have detected seasonal differences in the microhabitat features. The closing reed and Typha sp. had a negative effect on the number of observed basking turtles. The most popular type of basking sites in the pond system was the commonly occurred fallen tree trunks and branches in the water, regardless of turtle body size. Most turtles used thinner tree trunks and branches for basking. In the meantime, we found differences in the choice of basking trunks between the turtles with different body sizes. Younger turtles with smaller bodies appeared in larger numbers on emergent branches with smaller diameters.

Unexpected early extinction of the European pond turtle (Emys orbicularis) in Sweden and climatic impact on its Holocene range

2009 ◽  
Vol 18 (6) ◽  
pp. 1252-1262 ◽  
Author(s):  
ROBERT S. SOMMER ◽  
CHARLOTTE LINDQVIST ◽  
ARNE PERSSON ◽  
HENRIK BRINGSØE ◽  
ANDERS G. J. RHODIN ◽  
...  
Keyword(s):  
Climatic Impact ◽  
Emys Orbicularis ◽  
Pond Turtle

Holocene recolonization and extinction of the pond turtle, Emys orbicularis (L., 1758), in Europe

2007 ◽  
Vol 26 (25-28) ◽  
pp. 3099-3107 ◽  
Author(s):  
Robert S. Sommer ◽  
Arne Persson ◽  
Nina Wieseke ◽  
Uwe Fritz
Keyword(s):  
Emys Orbicularis ◽  
Pond Turtle

Genetic diversity of the European pond turtle (Emys orbicularis) in the South-West region of Hungary – first results

2011 ◽  
Vol 32 (4) ◽  
pp. 519-526 ◽  
Author(s):  
Zsigmond Jeney ◽  
Marcell Molnár ◽  
István Magyary ◽  
István Lehoczky ◽  
Attila Zsolnai ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Lake Balaton ◽  
Natural Habitats ◽  
Emys Orbicularis ◽  
Pond Turtle ◽  
South West ◽  
Ecological Corridor ◽  
Catchment Areas ◽  
First Results ◽  
Drava River

AbstractA set of five polymorphic microsatellite markers developed in Emydoidea blandingii was characterized for crossspecies amplification in the European pond turtle, Emys orbicularis. The markers were tested for polymorphism in a total of 155 turtles sampled in four natural habitats in the Danube-Drava National Park, South-West Hungary in order to determine the genetic diversity of European pond turtle populations and to check the functionality of existing ecological corridors in the region. The number of alleles varied from 5 to 24. Observed heterozygosity was moderate (0.43-0.55), while the level for expected heterozygosity ranged from 0.76 to 0.80. Significant heterozygote deficit was found in the populations accompanied by a low degree of genetic differentiation (FST ranges from 0.0166 to 0.0652). Wahlund effect was demonstrated in two populations. The ecological corridor between two water catchment areas (Lake Balaton and Drava River) fulfils its role only partially.

Insights into Emydid Turtle Cytogenetics: The European Pond Turtle as a Model Species

2019 ◽  
Vol 157 (3) ◽  
pp. 166-171 ◽  
Author(s):  
Alessio Iannucci ◽  
Marta Svartman ◽  
Massimo Bellavita ◽  
Guido Chelazzi ◽  
Roscoe Stanyon ◽  
...  
Keyword(s):  
Chromosome Banding ◽  
Molecular Cytogenetics ◽  
Comparative Genomic ◽  
Emys Orbicularis ◽  
Rdna Genes ◽  
Telomeric Sequences ◽  
Pond Turtle ◽  
Cytogenetic Data ◽  
Cryptic Sex

Our knowledge of Testudines evolution is limited by the lack of modern cytogenetic data. Compared to other reptiles, there is little information even on chromosome banding, let alone molecular cytogenetic data. Here, we provide detailed information on the karyotype of the European pond turtle Emys orbicularis, a model Emydidae, employing both chromosome banding and molecular cytogenetics. We provide a high-resolution G-banded karyotype and a map of rDNA genes and telomeric sequences using fluorescence in situ hybridization. We test hypotheses of sex-determining mechanisms in Emys by comparative genomic hybridization to determine if Emys has a cryptic sex-specific region. Our results provide valuable data to guide future efforts on genome sequencing and anchoring in Emydidae and for understanding karyotype evolution in Testudines.

Effects of microplastic exposure on the blood biochemical parameters in the pond turtle (Emys orbicularis)

2020 ◽  
Author(s):  
Mahdi Banaee ◽  
Amin Gholamhosseini ◽  
Antoni Sureda ◽  
Siyavash Soltanian ◽  
Mohammad Saeed Fereidouni ◽  
...  
Keyword(s):  
Biochemical Parameters ◽  
Emys Orbicularis ◽  
Blood Biochemical Parameters ◽  
Pond Turtle ◽  
Blood Biochemical
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