Habitat Preference and Management of a Chinese Pond Turtle Population Protected by the Demilitarized Kinmen Islands

2015 ◽  
Vol 49 (3) ◽  
pp. 399-404 ◽  
Author(s):  
Si-Min Lin ◽  
Yu Lee ◽  
Tien-Hsi Chen ◽  
Jhan-Wei Lin
Keyword(s):  
Habitat Preference ◽  
Pond Turtle ◽  
Turtle Population

scholarly journals The Forgotten Trade of European Pond Turtle Emys orbicularis in Central Europe in the 18th and 19th Centuries – An Essential Introduction to Historical and Economic Investigation

2018 ◽  
Vol 36 (1) ◽  
pp. 99-103
Author(s):  
Piotr Daszkiewicz
Keyword(s):  
Economic Analysis ◽  
19Th Century ◽  
Central Europe ◽  
18Th Century ◽  
Geographical Range ◽  
Historical Sources ◽  
Emys Orbicularis ◽  
Pond Turtle ◽  
Drug Substances ◽  
Turtle Population

Abstract A drastic decrease in the European pond turtle population occurred at the end of 18th century and during the first half of 19th century. The exploitation of this species, as a source of food and drug substances, is nowadays almost forgotten. The present paper aimed at, firstly, underlining some historical sources concerning the exploitation of the European pond turtle. Secondly, its goal is to answer the following question: to what extent did the exploitation of the species contribute to the decline of the population? The author concludes with the importance and necessity of historical and economic analysis in order to understand the phenomenon of the decline of the European pond turtle population. This research, which must be continued by historians, will help the naturalists in action to protect and reintroduce the species into its former geographical range.

Structural description of sea turtle fibropapilloma

2020 ◽  
Vol 13 (3) ◽  
pp. 585-591
Author(s):  
Luana Melo ◽  
Isabel Velasco ◽  
Julia Aquino ◽  
Rosangela Rodrigues ◽  
Edris Lopes ◽  
...  
Keyword(s):  
Green Turtle ◽  
Chelonia Mydas ◽  
Sea Turtle ◽  
Tumor Formation ◽  
Neoplastic Disease ◽  
Structural Description ◽  
Chemical Carcinogens ◽  
Epidermal Proliferation ◽  
Turtle Population ◽  
Bulky Mass

Fibropapillomatosis is a neoplastic disease that affects sea turtles. It is characterized by multiple papillomas, fibropapillomas and cutaneous and/or visceral fibromas. Although its etiology has not been fully elucidated, it is known that there is a strong involvement of an alpha - herpesvirus, but the influence of other factors such as parasites, genetics, chemical carcinogens, contaminants, immunosuppression and ultraviolet radiation may be important in the disease, being pointed out as one of the main causes of a reduction in the green turtle population. Thus, the objective of this article was to describe the morphology of cutaneous fibropapillomas found in specimens of the green turtle (Chelonia mydas), using light and scanning electron microscopy in order to contribute to the mechanism of tumor formation. Microscopically, it presented hyperplastic stromal proliferation and epidermal proliferation with hyperkeratosis. The bulky mass was coated with keratin, with some keratinocyte invaginations, that allowed the keratin to infiltrate from the epidermis into the dermis, forming large keratinized circular spirals. Another fact that we observed was the influence of the inflammation of the tumors caused by ectoparasites.

Differentiation and Interrelations of Two Representatives of Laudakia stellio Complex (Reptilia: Agamidae) in Israel

2011 ◽  
Vol 4 (2) ◽  
pp. 102-114 ◽  
Author(s):  
Evgenyi N. Panov ◽  
Larissa Yu. Zykova
Keyword(s):  
Population Structure ◽  
Gene Flow ◽  
Habitat Preference ◽  
Additional Data ◽  
Near East ◽  
Field Studies ◽  
Subspecies Level ◽  
Limited Gene Flow ◽  
Study Sites ◽  
And Behavior

Field studies were conducted in Central Negev within the breeding range of Laudakia stellio brachydactyla and in NE Israel (Qyriat Shemona) in the range of an unnamed form (tentatively “Near-East Rock Agama”), during March – May 1996. Additional data have been collected in Jerusalem at a distance of ca. 110 km from the first and about 170 km from the second study sites. A total of 63 individuals were caught and examined. The animals were marked and their subsequent movements were followed. Social and signal behavior of both forms were described and compared. Lizards from Negev and Qyriat Shemona differ from each other sharply in external morphology, habitat preference, population structure, and behavior. The differences obviously exceed the subspecies level. At the same time, the lizards from Jerusalem tend to be intermediate morphologically between those from both above-named localities, which permits admitting the existence of a limited gene flow between lizard populations of Negev and northern Israel. The lizards from NE Israel apparently do not belong to the nominate subspecies of L. stellio and should be regarded as one more subspecies within the species.

PERÍODO DE DESOVA E SUCESSO REPRODUTIVO DO TRACAJÁ Podocnemis unifilis TROSCHEL 1848 (TESTUDINES: PODOCNEMIDIDAE) NA VÁRZEA DA RDSM – MÉDIO SOLIMÕES, BRASIL

2008 ◽  
Vol 2 (1) ◽  
pp. 63-75
Author(s):  
Augusto Fachín Terán ◽  
Eduardo Matheus Von Mülhen
Keyword(s):  
Hatching Success ◽  
Management Program ◽  
Nesting Biology ◽  
Sand Beach ◽  
Podocnemis Unifilis ◽  
Turtle Population ◽  
Nesting Beaches ◽  
Conservation And Management ◽  
Tegu Lizard ◽  
Solimões River

In this study the nesting biology of Podocnem is unifilis was investigated from July to November 1998 at the Mamirauá Sustainable Development Reserve, located in the Solimões river, near Tefé, Amazonas, Brazil. Podocnemis unifilis nested in August and September, with the hatching event occurring in October and November. Nests were excavated in clay soils (67.5%), sand (25%), and leaf litter (7.5%). Hatching success was highest in the sand beach nests and lowest in the clay banks nests. Humans and the tegu lizard (Tupinambis) were the main egg predators. This turtle population can recover only by the protection of nesting beaches, educational programs for the in habitants of the Reserve, participation of the community in the conservation and management program , and permanent guarding of the nesting beaches by Instituto Brasileiro do Meio Ambiente e Dos Recursos Naturais Renováveis-IBAMA authorities.

OBSERVATION ON THE EMBRYONIC DEVELOPMENT OF YELLOW POND TURTLE,MAUREMYS MUTICA CANTOR 1842

2009 ◽  
Vol 32 (5) ◽  
pp. 649-656 ◽  
Author(s):  
Wei-Hua ZHAO ◽  
Xin-Ping ZHU ◽  
Cheng-Qing WEI ◽  
He-Jun DU ◽  
Yong-Le CHEN
Keyword(s):  
Embryonic Development ◽  
Pond Turtle ◽  
Mauremys Mutica
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