Attributes of basking sites of the European pond turtle (Emys orbicularis) in central Italy

2015 ◽  
Vol 36 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Leonardo Vignoli ◽  
Marco A. Bologna ◽  
Silvia Manzini ◽  
Lorenzo Rugiero ◽  
Luca Luiselli
Keyword(s):  
Aquatic Vegetation ◽  
Central Italy ◽  
Freshwater Turtles ◽  
Management Planning ◽  
Emys Orbicularis ◽  
Turtle Species ◽  
Pond Turtle ◽  
Target Spot ◽  
Site Characteristics ◽  
Management Plans

Attributes of basking sites are important elements to study in management plans of threatened freshwater turtles. Here, we analyzed the basking-site characteristics of European pond turtle (Emys orbicularis) populations in a Mediterranean territory of central Italy (Tolfa Mountains, Latium). We used logistic regression and Principal Components Analysis to characterize 29 presence sites versus 61 random sites, through 16 descriptive variables recorded within a 5 m radius from the sighting/target spot. Our analyses revealed that some variables (i.e. water turbidity, presence of small coves, submerged vegetation, and emergent tree-trunks) were those that influenced most strongly the presence of turtles on potential basking sites. Maintenance of deadwood in water and preservation of submerged aquatic vegetation should be included in the management planning for this turtle species in central Italy.

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.

scholarly journals Freshwater Turtles of Belize

EDIS ◽  
2013 ◽  
Vol 2013 (2) ◽  
Author(s):  
Venetia Briggs ◽  
Lauren Watine ◽  
Dustin Smith ◽  
Robin Bijlani ◽  
Rebecca Harvey ◽  
...  
Keyword(s):  
Natural Resources ◽  
Habitat Loss ◽  
Aquatic Vegetation ◽  
Critically Endangered ◽  
Freshwater Turtles ◽  
Wildlife Ecology ◽  
Turtle Species ◽  
Fact Sheet

Belize, a country rich in natural resources and diverse wildlife, is home to nine species of freshwater turtles. Among these is the critically endangered hicatee, which has been eliminated in most of its range as a result of hunting and habitat loss. Freshwater turtles live in rivers, creeks, and lagoons, and build their nests on the banks. They eat a variety of plants, aquatic vegetation, and fruits. However, little is known about Belize’s unique turtle species. This 2-page fact sheet will help people identify, understand, and conserve these treasured resources. Written by Venetia Briggs, Lauren Watine, Dustin Smith, Robin Bijlani, Rebecca Harvey, William Giuliano, and Frank Mazzotti, and published by the UF Department of Wildlife Ecology and Conservation, January 2013.  http://edis.ifas.ufl.edu/uw373  Check out the Facebook album! 

scholarly journals Updated distribution of the European pond turtle Emys orbicularis (Linnaeus, 1758) and its conservation issues in Serbia

2015 ◽  
Vol 67 (3) ◽  
pp. 1043-1053 ◽  
Author(s):  
Imre Krizmanic ◽  
Aleksandar Urosevic ◽  
Aleksandar Simovic ◽  
Milivoj Krstic ◽  
Danko Jovic ◽  
...  
Keyword(s):  
The State ◽  
Emys Orbicularis ◽  
Turtle Species ◽  
Pond Turtle ◽  
Conservation Measures ◽  
Field Investigations ◽  
The Republic

Although the European pond turtle (Emys orbicularis) has been included in studies for several decades, the information about its distribution and the state of populations in Serbia is still incomplete. The data collected from the available literature sources, and those based on the authors? own field investigations, indicate that E. orbicularis occupies a large part of the territory of the Republic of Serbia, preferring aquatic biotopes at lower altitudes. We compiled a list of 287 localities where the presence of the pond turtle has been recorded. Of those, 14% (40 localities) were known only from literature sources, localities added during our field investigations represent 82% (235 sites), 4% (12 localities) confirming literature data. We also gathered information on the main negative threats to the endurance of the pond turtle in Serbia. These are habitat pollution, degradation and destruction, and the spread of allochthonous invasive turtle species. Some protective and conservation measures are suggested in the conclusion.

Population size and density in two European pond turtle populations of central Italy

2020 ◽  
Vol 41 (4) ◽  
pp. 461-467
Author(s):  
Marco A.L. Zuffi ◽  
Alice Spinelli ◽  
Vuk Ikovic ◽  
Marco Mangiacotti ◽  
Roberto Sacchi ◽  
...  
Keyword(s):  
Sexual Size Dimorphism ◽  
Central Italy ◽  
Reproductive Rate ◽  
Population Estimates ◽  
Protection Measures ◽  
Emys Orbicularis ◽  
Pond Turtle ◽  
Natural Park ◽  
Two Populations ◽  
North Western

Abstract Two populations of the European pond turtle were studied employing capture, marking and recapture (CMR) techniques to determine population density and abundance in natural and protected areas within the Regional Natural park Migliarino San Rossore Massaciuccoli in north western Tuscany, Italy. The results indicated strong sexual size dimorphism in both populations, with males smaller than females. In one area Emys orbicularis was in general smaller in size with a very low reproductive rate (three out of 25 adult females were gravid), which contrasted with a second population where 20 out of 42 females were gravid. Population estimates indicated 79 turtles were present in the first area (0.34 ha) and 61 turtles in the second area (0.58 ha), giving an overall density estimate of 183.6 turtles/ha and 146.7 turtles/ha respectively. Whilst our results are similar to those found in other areas of Europe, they diverge from other regions, suggesting that sampling and monitoring techniques should be standardized to obtain comparable data that will enable conservation and protection measures to be recommended.

scholarly journals Not only pond sliders: freshwater turtles in the water bodies of the Milan northern urban area (Italy)

2021 ◽  
Vol 8 (2) ◽  
pp. 53-58
Author(s):  
Claudio Foglini
Keyword(s):  
Water Bodies ◽  
Freshwater Turtles ◽  
Invasive Potential ◽  
Pet Trade ◽  
Emys Orbicularis ◽  
Field Surveys ◽  
Turtle Species ◽  
Slider Turtle ◽  
Presence Data ◽  
Frequent Presence

Freshwater turtles represent one of the most common pets released in urban water bodies. In Europe, after the ban on the import of Trachemys scripta, other non-native turtle species now dominate the legal pet trade. Some of these species have high invasive potential, such as the well-known slider turtle, but their diffusion outside their native range is poorly known. This work summarises presence data about non-native freshwater turtles, different from slider turtles T. scripta, into two urban parks located at the northern boundary of the Milan outskirts (Italy, Lombardy). Turtle detections were obtained merging field surveys conducted from 2014 to 2020, with sparse pictures taken by occasional observers. The situation depicted shows, in addition to the ubiquitous spread of slider turtle subspecies and hybrids in both parks, the frequent presence of other multiple genera such as Pseudemys and Graptemys. Isolated individuals of Apalone spinifera, Graptemys ouachitensis, Mauremys sinensis, Pelomedusa subrufa and Sternotherus carinatus were also found. I also detected one Emys orbicularis, probably escaped or released.

scholarly journals A case of Emys orbicularis (L.) feeding on newts from Bulgaria

2021 ◽  
Vol 43 (2) ◽  
pp. 25-27
Author(s):  
Vladislav Vergilov ◽  
Angel Dyugmedzhiev ◽  
Sylvia Georgieva ◽  
Miroslav Slavchev
Keyword(s):  
Stomach Content ◽  
Body Parts ◽  
Emys Orbicularis ◽  
Turtle Species ◽  
Pond Turtle ◽  
Amphibian Larvae

Different amphibians and amphibian larvae were already observed and described as part of the diet of the European pond turtle. Few studies report body parts from adult newts in the stomach content of Emys orbicularis (Linnaeus, 1758) or newts predated by the same pond turtle species. We observed remains of Triturus dobrogicus (Kiritzescu, 1903) and Trituris ivanbureschi Arntzen & Wielstra, 2013 eaten by E. orbicularis inside funnel traps, which strongly suggests, that newts are part of the diet, although not typical and often eaten food by this pond turtle.

Freshwater turtles of the TransFly region of Papua New Guinea - notes on diversity, distribution, reproduction, harvest and trade

2006 ◽  
Vol 33 (5) ◽  
pp. 373 ◽  
Author(s):  
Arthur Georges ◽  
Fiorenzo Guarino ◽  
Biatus Bito
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Management Plan ◽  
Transport Infrastructure ◽  
Sufficient Information ◽  
Freshwater Turtles ◽  
Demographic Information ◽  
Turtle Species ◽  
Western Province ◽  
High Diversity

The Chelidae is a family of side-necked turtles restricted in distribution to South America and Australasia. While their biology in Australia is reasonably well known, species in New Guinea are very poorly known despite high diversity, especially in the southern lowlands. In this paper, we report on the diversity, distribution, habitat and reproductive biology of the freshwater turtles of the TransFly region of the Western Province of Papua New Guinea, with special emphasis on reproduction of Emydura subglobosa, Elseya branderhorsti and Elseya novaeguineae. Seven species were captured, with reliable records of an eighth. A key to the freshwater turtles of the TransFly region is provided. Harvest methods, consumption, and trade in turtles by the TransFly communities are documented. There is mounting pressure to take advantage of revenue opportunities afforded by the Asian turtle trade, but this is impeded by lack of transport infrastructure. There is also insufficient demographic information on any New Guinean turtle species to make a reasoned judgment on the level of harvest that would be sustainable. Nor is there sufficient information on captive rearing for most species, and where it is available it is not accessible by local villagers. These knowledge gaps need to be addressed and factored into a management plan that is implemented before local communities can capitalise on the commercial opportunities provided by the turtle fauna without risking collapse of the resource and the implications for their concurrent subsistence economy that would follow.

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