2,795 results on '"Tortoise"'
Search Results
2. The conundrum of turtle and tortoise basking: A critical review.
- Author
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Chessman, B. C.
- Subjects
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BODIES of water , *WARM-blooded animals , *COLD-blooded animals , *SOLAR radiation , *VITAMIN D - Abstract
Behaviours designated as basking span a broad array of ectothermic and endothermic animals. Understanding the role that basking plays in thermal biology is important because maintaining body temperatures within certain limits is essential to survival, growth and reproduction, and may affect responses to climate change. In the case of turtles and tortoises, behaviours designated as basking may occur out of water, at the surface of a water body or deep in a water body, during the day or at night, and with or without exposure to solar radiation or another heat source. On the available evidence, the primary function of most nominal chelonian basking is thermoregulatory warming, which provides numerous benefits including expediting gonadal recrudescence, enhancing foraging, feeding, digestion and growth, and amelioration of infectious disease and endoparasitism. Substantial evidence supports conditioning of the skin and shell as a common additional function of chelonian basking. Other functions of nominal chelonian basking with some supporting evidence for particular species and environments are thermoregulatory cooling, leech removal, vitamin D synthesis and osmotic control. Nominal chelonian basking may sometimes be undertaken for resting or avoiding aggression, but supporting evidence is scant. The only uniting feature of all chelonian behaviours designated as basking is quiescence, but not all quiescent chelonian behaviours are labelled as basking. Consequently, the general meaning of chelonian basking is indeterminate. Avoiding ambiguity requires the provision of explicit criteria by which basking can be distinguished from other quiescent behaviours, and the attachment of qualifiers that specify the applicable time of day, medium and environmental exposure. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Trace Elements in Hermann's Tortoises (Testudo hermanni) According to Sex, Season, and Sampling Region in Central Europe.
- Author
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Leineweber, Christoph, Geisler, Gregor, Pees, Michael, Öfner, Sabine, and Marschang, Rachel E.
- Subjects
- *
INDUCTIVELY coupled plasma mass spectrometry , *TRACE elements , *COPPER , *BLOOD plasma , *TESTUDINIDAE , *REGIONAL differences - Abstract
Simple Summary: Some trace elements are essential for the health of vertebrates, but only limited data are available on blood levels in tortoises. The aim of this study was therefore to measure trace elements in heparinized blood plasma of Hermann's tortoises (Testudo hermanni) (n = 520) from March to September 2022 using inductively coupled plasma mass spectrometry (ICP-MS) and to establish specific reference intervals. Additionally, the influence of sex, season, and region of sample collection on the measured values were evaluated. Significant (p ≤ 0.05) sex-specific, seasonal, and regional differences were found for a number of trace elements indicating that all of these factors should be considered when establishing and interpreting blood trace element levels in tortoises. Some trace elements are essential for the health of vertebrates, but little is known about their function, the amounts required, and the factors influencing their metabolism in tortoises. The aim of this study was therefore to measure trace elements (chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), molybdenum (Mo), selenium (Se), zinc (Zn)) in heparinized blood plasma of Hermann's tortoises (Testudo hermanni) (n = 520) from March to September 2022 using inductively coupled plasma mass spectrometry (ICP-MS) and to establish specific reference intervals. Additionally, the influence of sex, season, and region of sample collection on the measured values were evaluated. Significant (p ≤ 0.05) sex-specific differences were found for Cu, Mg, and Mn; seasonal differences were found for Cr, Cu, Mn, Mo, and Se; and the region in which the tortoises were kept significantly impacted Cr, Cu, Fe, Mg, Mo, and Se levels. The results show that all of these factors should be consider when establishing and interpreting blood trace element levels in tortoises. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Genomic and Functional Characterization of CTX-M-15-Producing Klebsiella pneumoniae ST307 Isolated from Imported Leopard Tortoises in Germany.
- Author
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Schmidt, Tammy J., Aurich, Sophie, Unger, Franziska, Eisenberg, Tobias, and Ewers, Christa
- Subjects
- *
GENOMES , *KLEBSIELLA pneumoniae , *DRUG resistance in microorganisms , *PHYLOGENY , *PLASMIDS - Abstract
The Klebsiella pneumoniae ST307 clone, identified in the mid-1990s, has emerged as a global antimicrobial-resistant (AMR) high-risk clone, significantly contributing to the global health challenge also posed by other AMR K. pneumoniae lineages. The acquisition of a blaCTX-M-15-carrying plasmid has facilitated its widespread dissemination. At Europe's major transport hub for the movement of live animals, Frankfurt Airport, a shipment of 20 live leopard tortoises was sampled during German border control in 2014. Phylogenetic analysis (MLST) identified a K. pneumoniae ST307 strain, prompting further investigation. Our analysis revealed the presence of a ~193 kb plasmid carrying a broad range of AMR genes, including blaCTX-M-15, blaTEM-1B, blaOXA-1, aac(3)-IIa, aac(6′)-Ib-cr, aph(3″)-Ib, aph(6)-Id, and qnrB1. Additionally, mutations in the quinolone resistance-determining region in gyrA (S83I) and parC (S80I) were detected. Phenotypic testing demonstrated resistance of the isolate to the most common antimicrobials used in both human and veterinary medicine; exceptions included carbapenems and newer β-lactamase inhibitor combinations. Because the role of imported exotic animals in the dissemination of AMR genes is largely deficient, the present study fills yet missing mosaic pieces in the complete picture of extended-spectrum β-lactamase (ESBL)-producing Enterobacterales. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Rule #79 / / Trust in Chronometry
- Author
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McCoubrie, Paul and McCoubrie, Paul
- Published
- 2024
- Full Text
- View/download PDF
6. Genomic and Functional Characterization of CTX-M-15-Producing Klebsiella pneumoniae ST307 Isolated from Imported Leopard Tortoises in Germany
- Author
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Tammy J. Schmidt, Sophie Aurich, Franziska Unger, Tobias Eisenberg, and Christa Ewers
- Subjects
Klebsiella pneumoniae ,ST307 ,CTX-M-15 ,plasmid ,tortoise ,antimicrobial resistance ,Microbiology ,QR1-502 - Abstract
The Klebsiella pneumoniae ST307 clone, identified in the mid-1990s, has emerged as a global antimicrobial-resistant (AMR) high-risk clone, significantly contributing to the global health challenge also posed by other AMR K. pneumoniae lineages. The acquisition of a blaCTX-M-15-carrying plasmid has facilitated its widespread dissemination. At Europe’s major transport hub for the movement of live animals, Frankfurt Airport, a shipment of 20 live leopard tortoises was sampled during German border control in 2014. Phylogenetic analysis (MLST) identified a K. pneumoniae ST307 strain, prompting further investigation. Our analysis revealed the presence of a ~193 kb plasmid carrying a broad range of AMR genes, including blaCTX-M-15, blaTEM-1B, blaOXA-1, aac(3)-IIa, aac(6′)-Ib-cr, aph(3″)-Ib, aph(6)-Id, and qnrB1. Additionally, mutations in the quinolone resistance-determining region in gyrA (S83I) and parC (S80I) were detected. Phenotypic testing demonstrated resistance of the isolate to the most common antimicrobials used in both human and veterinary medicine; exceptions included carbapenems and newer β-lactamase inhibitor combinations. Because the role of imported exotic animals in the dissemination of AMR genes is largely deficient, the present study fills yet missing mosaic pieces in the complete picture of extended-spectrum β-lactamase (ESBL)-producing Enterobacterales.
- Published
- 2024
- Full Text
- View/download PDF
7. Conservation units alone are insufficient to protect Brazilian Amazonian chelonians
- Author
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Loyriane Moura Sousa, Letícia Lima Correia, Rafaela Jemely Rodrigues Alexandre, Simone Almeida Pena, and Thiago Bernardi Vieira
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Conservation unit ,Indigenous lands ,Biodiversity ,Bioclimatic variables ,Turtle ,Tortoise ,Medicine ,Science - Abstract
Abstract The creation of protected areas (PAs) is not always based on science; consequently, some aquatic species may not receive the same level of protection as terrestrial ones. The objective of this study was to identify priority areas for the conservation of chelonians in the Brazilian Amazon basin and assess the contribution of PAs, distinguishing between Full Protection Areas, Sustainable Use Areas, and Indigenous Lands for group protection. The entire species modeling procedure was carried out using Species Distribution Models. Location records were obtained from platforms such as SpeciesLink, GBIF, the Hydroatlas database, and WorldClim for bioclimatic variables adjusted with algorithms like Maximum Entropy, Random Forest, Support Vector Machine, and Gaussian-Bayesian. Indigenous lands cover more than 50% of the distribution areas of chelonian species in the Brazilian Amazon. Protected areas with higher conservation importance (Full Protection Areas and Sustainable Use Areas) hold less than 15% of the combined species distribution. Researchers face significant challenges when making decisions with models, especially in conservation efforts involving diverse taxa that differ significantly from one another within a group of individuals.
- Published
- 2024
- Full Text
- View/download PDF
8. Parasites of reptiles in Iran (1922–2023): A literature review
- Author
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Alireza Sazmand, MohammadParsa Miadfar, Georgiana Deak, Mohammad Babaei, Jairo A. Mendoza-Roldan, and Domenico Otranto
- Subjects
Lizards ,Pathogens ,Reptiles ,Snakes ,Tortoise ,Zoonoses ,Zoology ,QL1-991 - Abstract
Reptiles are among the most diverse groups of animals, inhabiting nearly all continents and environments. Understanding their parasite biodiversity has garnered significant interest, particularly from a One Health perspective. Although the highly diverse reptile fauna of Iran, comprising 272 species i.e. 89 snakes (Serpentes), 171 lizards (Sauria), 8 turtles, 2 tortoises (Testudines), 1 crocodile (Crocodilia), and 1 worm-lizard (Amphisbaenia), there is a shortage of information about parasites. The present review is a compilation of 62 studies published from 1922 to August 2024. We present information on 56 species of reptiles from five groups (amphisbaenians, crocodiles, testudines, snakes, and lizards) and 98 parasitic taxa belonging to different protozoa and metazoa i.e. nematodes, cestodes, trematodes, acanthocephala, leeches, ticks, mites, and myiasis -producing flies. Although 63 taxa were diagnosed at the species level, 35 parasite taxa were only reported at the genus or family levels. Reviewing the literature, we found a paucity of information about endemic reptiles several of which are vulnerable species. Considering that some of the detected parasites e.g. Cryptosporidium and amoebae have serious clinical and/or public health threats molecular diagnostic techniques are needed for precise identification and understanding of the epidemiology and the potential zoonotic implications associated with parasites of reptiles. There is also a need to understand the exact distribution and host-parasite associations in different reptilian species present in Iran including the role of the reptiles as intermediate and reservoir hosts.
- Published
- 2024
- Full Text
- View/download PDF
9. Conservation units alone are insufficient to protect Brazilian Amazonian chelonians.
- Author
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Sousa, Loyriane Moura, Correia, Letícia Lima, Alexandre, Rafaela Jemely Rodrigues, Pena, Simone Almeida, and Vieira, Thiago Bernardi
- Subjects
- *
INDIGENOUS peoples of South America , *SPECIES distribution , *LAND cover , *PROTECTED areas , *SUPPORT vector machines , *RANDOM forest algorithms - Abstract
The creation of protected areas (PAs) is not always based on science; consequently, some aquatic species may not receive the same level of protection as terrestrial ones. The objective of this study was to identify priority areas for the conservation of chelonians in the Brazilian Amazon basin and assess the contribution of PAs, distinguishing between Full Protection Areas, Sustainable Use Areas, and Indigenous Lands for group protection. The entire species modeling procedure was carried out using Species Distribution Models. Location records were obtained from platforms such as SpeciesLink, GBIF, the Hydroatlas database, and WorldClim for bioclimatic variables adjusted with algorithms like Maximum Entropy, Random Forest, Support Vector Machine, and Gaussian-Bayesian. Indigenous lands cover more than 50% of the distribution areas of chelonian species in the Brazilian Amazon. Protected areas with higher conservation importance (Full Protection Areas and Sustainable Use Areas) hold less than 15% of the combined species distribution. Researchers face significant challenges when making decisions with models, especially in conservation efforts involving diverse taxa that differ significantly from one another within a group of individuals. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
10. Corrigendum: The effects of sex, season, and natural sunlight on plasma vitamin D3 levels in two chelonian species (Testudo hermanni, Trachemys scripta) and their interaction with calcium, phosphate, and magnesium as associated plasma compounds
- Author
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Gregor Geisler, Christoph Leineweber, Michael Pees, Sabine Öfner, and Rachel E. Marschang
- Subjects
vitamin D3 ,tortoise ,turtle ,reference interval ,season ,sunlight ,Zoology ,QL1-991 - Published
- 2024
- Full Text
- View/download PDF
11. Evaluation of changes in serum biochemical parameters in zarudny’s spur-thighed tortoises (Testudo graeca zarudnyi) influenced by gender and season
- Author
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Zohreh Khaki, Amir Rostami, and Farshad Esfandiary
- Subjects
Testudo graeca zarudnyi ,Tortoise ,Biochemical parameters ,Season ,Iran ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background The Zarudny’s spur-thighed tortoise or Iranian tortoise (Testudo graeca zarudnyi) has just been reported from Iran so far. Therefore, the purpose of this study was to determine the effects of season and gender on serum biochemical parameters of this valuable species in Iran. Results This study was performed on 20 clinically healthy adult Zarudny’s spur-thighed tortoises. Blood samples were collected from the jugular vein and then serum biochemical parameters and body weight were measured in autumn and winter. The following biochemical parameters were measured: total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, very low-density lipoprotein, total protein, creatinine, urea, glucose, calcium, inorganic phosphorus, total bilirubin, uric acid, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase and lactate dehydrogenase. Urea concentration increased significantly at emergence from hibernation. Also, in winter, total protein, phosphorous, creatinine, total bilirubin concentrations and alkaline phosphatase activity decreased significantly compared to autumn, but aspartate aminotransferase and lactate dehydrogenase activities were significantly higher than in autumn. There was no significant difference for the parameters mentioned above by gender, except for phosphorous. Phosphorous concentration in females was significantly higher than that of males in autumn. Cholesterol and low-density lipoprotein cholesterol levels in females were significantly higher than males in autumn and winter. Conclusions The present study is the first study that monitors the serum biochemical parameters of adult Zarudny’s spur-thighed tortoises based on season and gender. Seasonal reference intervals should be used for biochemical parameters in this valuable species. Also, sex-specific reference intervals for phosphate and cholesterol are necessary.
- Published
- 2024
- Full Text
- View/download PDF
12. From pets to plates: network analysis of trafficking in tortoises and freshwater turtles representing different types of demand
- Author
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Ramya Roopa Sengottuvel, Aristo Mendis, Nazneen Sultan, Shivira Shukla, Anirban Chaudhuri, and Uttara Mendiratta
- Subjects
Illegal trade ,India ,meat trade ,pet trade ,seizure ,social network analysis ,tortoise ,freshwater turtle ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Despite being protected under the law, illegal trade in tortoises and freshwater turtles is common in India, with different species being trafficked for different markets. Indian species of tortoises and hard-shell turtles are predominantly trafficked for the pet trade and soft-shell turtles for the meat trade. Given their distinct markets, the operation of trade may vary between these different groups of tortoises and freshwater turtles, thereby necessitating different types of interventions. However, a systematic examination of illegal trade in tortoises and freshwater turtles that takes into account the differences between these markets is currently lacking. Here we compare the supply networks of tortoises/hard-shell turtles (in demand for pet trade) vs soft-shell turtles (meat trade), using information from 78 and 64 seizures, respectively, that were reported in the media during 2013–2019. We used social network analysis to compare the two networks and the role of individual nodes (defined as locations at the district or city scale) within these networks. We found that the tortoise/hard-shell turtle network had a larger geographical scale, with more international trafficking links, than the soft-shell turtle network. We recorded convoluted smuggling routes in tortoise/hard-shell turtle trafficking, whereas soft-shell turtle trafficking was uni-directional from source to destination. Within both networks, we found that a few nodes played disproportionately important roles as key exporting, importing or transit nodes. Our study provides insights into the similarities and differences in the illegal supply networks of different groups of tortoises and freshwater turtles, in demand for different markets. We highlight the need for intervention strategies tailored to address the illegal trade in each of these groups.
- Published
- 2024
- Full Text
- View/download PDF
13. Evaluation of changes in serum biochemical parameters in zarudny's spur-thighed tortoises (Testudo graeca zarudnyi) influenced by gender and season.
- Author
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Khaki, Zohreh, Rostami, Amir, and Esfandiary, Farshad
- Subjects
- *
LDL cholesterol , *HDL cholesterol , *TESTUDINIDAE , *AUTUMN , *LACTATE dehydrogenase , *UREA , *ASPARTATE aminotransferase - Abstract
Background: The Zarudny's spur-thighed tortoise or Iranian tortoise (Testudo graeca zarudnyi) has just been reported from Iran so far. Therefore, the purpose of this study was to determine the effects of season and gender on serum biochemical parameters of this valuable species in Iran. Results: This study was performed on 20 clinically healthy adult Zarudny's spur-thighed tortoises. Blood samples were collected from the jugular vein and then serum biochemical parameters and body weight were measured in autumn and winter. The following biochemical parameters were measured: total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, very low-density lipoprotein, total protein, creatinine, urea, glucose, calcium, inorganic phosphorus, total bilirubin, uric acid, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase and lactate dehydrogenase. Urea concentration increased significantly at emergence from hibernation. Also, in winter, total protein, phosphorous, creatinine, total bilirubin concentrations and alkaline phosphatase activity decreased significantly compared to autumn, but aspartate aminotransferase and lactate dehydrogenase activities were significantly higher than in autumn. There was no significant difference for the parameters mentioned above by gender, except for phosphorous. Phosphorous concentration in females was significantly higher than that of males in autumn. Cholesterol and low-density lipoprotein cholesterol levels in females were significantly higher than males in autumn and winter. Conclusions: The present study is the first study that monitors the serum biochemical parameters of adult Zarudny's spur-thighed tortoises based on season and gender. Seasonal reference intervals should be used for biochemical parameters in this valuable species. Also, sex-specific reference intervals for phosphate and cholesterol are necessary. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
14. From pets to plates: network analysis of trafficking in tortoises and freshwater turtles representing different types of demand.
- Author
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Sengottuvel, Ramya Roopa, Mendis, Aristo, Sultan, Nazneen, Shukla, Shivira, Chaudhuri, Anirban, and Mendiratta, Uttara
- Subjects
- *
TURTLES , *COMPUTER network traffic , *TESTUDINIDAE , *PET industry , *SOCIAL network analysis - Abstract
Despite being protected under the law, illegal trade in tortoises and freshwater turtles is common in India, with different species being trafficked for different markets. Indian species of tortoises and hard-shell turtles are predominantly trafficked for the pet trade and soft-shell turtles for the meat trade. Given their distinct markets, the operation of trade may vary between these different groups of tortoises and freshwater turtles, thereby necessitating different types of interventions. However, a systematic examination of illegal trade in tortoises and freshwater turtles that takes into account the differences between these markets is currently lacking. Here we compare the supply networks of tortoises/hard-shell turtles (in demand for pet trade) vs soft-shell turtles (meat trade), using information from 78 and 64 seizures, respectively, that were reported in the media during 2013–2019. We used social network analysis to compare the two networks and the role of individual nodes (defined as locations at the district or city scale) within these networks. We found that the tortoise/hard-shell turtle network had a larger geographical scale, with more international trafficking links, than the soft-shell turtle network. We recorded convoluted smuggling routes in tortoise/hard-shell turtle trafficking, whereas soft-shell turtle trafficking was uni-directional from source to destination. Within both networks, we found that a few nodes played disproportionately important roles as key exporting, importing or transit nodes. Our study provides insights into the similarities and differences in the illegal supply networks of different groups of tortoises and freshwater turtles, in demand for different markets. We highlight the need for intervention strategies tailored to address the illegal trade in each of these groups. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
15. Opportunities for research and conservation of freshwater turtles in Australia.
- Author
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Bower, Deborah S., McKnight, Donald T., Sullivan, Kyra, Macdonald, Stewart L., Georges, Arthur, Clulow, Simon, Mathwin, Rupert, Connell, Marilyn J., Nelson, Holly V., Santoro, Anthony, Nordstrom, Bethany, Van Dyke, James U., Kidman, Rosie A., Streeting, Louise M., Dillon, Martin L., Spencer, Ricky‐John, Thompson, Michael B., and Nordberg, Eric J.
- Subjects
- *
TURTLES , *TURTLE conservation , *EVIDENCE gaps , *HERPETOLOGISTS , *FEDERAL government - Abstract
Australia's freshwater turtles have high endemicity and many are threatened by extinction. Following a symposium held at the 2022 conference of the Australian Society of Herpetologists, we summarized the current status of research and conservation for Australian freshwater turtles and identified opportunities for future research. Eight species (32%) of Australia's 25 native freshwater turtles are listed as threatened by Australia's Federal Government. Symposium discussions on the primary gaps in research identified the lack of baseline data to inform population modelling as a key deficiency. Knowledge of the most effective conservation actions, the effectiveness of attempts to aid population recovery, and whether these actions are required at all, remains lacking for many species. A heavy bias exists between some well‐studied species compared with others for which little or no information is published. Community science, engagement with First Nations people, advances in technology, and recognition of the importance of turtles are contributing to better knowledge. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
16. Tick infestation in spur-thighed tortoise population: a pilot study for unraveling epidemiological patterns and demographic consequences.
- Author
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Segura, Amalia, Rafael, Marta, Vaz-Rodrigues, Rita, Rodríguez, Oscar, Gortázar, Christian, and de la Fuente, José
- Subjects
TICKS ,TICK infestations ,TESTUDINIDAE ,ZOONOSES ,PILOT projects ,POPULATION dynamics - Abstract
Ectoparasites, such as ticks, modulate host population dynamics by impacting demographic traits. They transmit infectious agents among their hosts, posing a critical threat to animal and public health. This study aimed to characterize and analyze the Hyalomma aegyptium infestation on one of its main hosts, the spur-thighed tortoise, its effects on demographic traits, and to determine the diversity of infectious agents present in both ticks and tortoises in the Maamora forest (northwestern Morocco). Our results show that 100% of the tortoises were parasitized by adult ticks in spring, an infestation intensity of 4 ticks/tortoise (5.1 and 3.6 ticks/tortoise in males and females, respectively; 4.2 and 3.3 ticks/tortoise in gravid and non-gravid females, respectively) and an abundance ranging from 1 to 12. Although without significant differences, male tortoises had higher tick abundances than females. The interaction of tortoise sex and body condition was significantly related to tick abundance, male body condition decreased with higher tick abundance in contrast to females. Nevertheless, the interaction of body condition and reproductive stage of females was not significantly related to tick abundance. Gravid females were significantly associated with tick abundance, showing a slightly higher infestation than non-gravid females. Molecular analysis of pooled tick samples revealed the presence of Ehrlichia ewingii, Candidatus Midichloria mitochondrii, and Rickettsia africae, with a minimum infection rate of 0.61 to 1.84%. However, blood sample analysis of the tortoises was infectious agent-free, pinpointing a lack of significant health problems. Given the possible effect on the transmission of zoonotic diseases by spur-thighed tortoises associated with their frequent collection as pets, it should be surveyed to control possible human health problems. In conservation terms, as a long-lived species, the role of tick infestation in demographic traits might be included in the management and conservation programs of spur-thighed tortoises. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
17. Clinical and Radiological Report of a Soft Shell in a Tortoise (Testudo graeca)
- Author
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Sahar Etemadi, Seyed Mohammad Hashemi-Asl, and Alaleh Rakhshanpour
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reptiles ,metabolic bone disease ,tortoise ,radiography ,Veterinary medicine ,SF600-1100 - Abstract
There are different types of metabolic bone diseases, and nutritional secondary hyperparathyroidism, or nutritional metabolic bone disease, is the most common one in turtles. This disease may cause deformities and paralysis of the posterior limb. In this article, we describe a tortoise (Testudo gareca) with soft shell syndrome and cloacal inflammation. A 1.5-year-old tortoise weighing 600 grams was referred to the faculty clinic for anorexia and inability to defecate. During the clinical examination, the shell was observed to be curvy and excessively soft when touched, along with swelling around the cloaca. Lateral and dorsal-ventral radiographs were performed to further evaluate the patient. This clinical report presents the clinical findings and radiographic profile of a soft shell in a tortoise.
- Published
- 2023
- Full Text
- View/download PDF
18. Trace Elements in Hermann’s Tortoises (Testudo hermanni) According to Sex, Season, and Sampling Region in Central Europe
- Author
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Christoph Leineweber, Gregor Geisler, Michael Pees, Sabine Öfner, and Rachel E. Marschang
- Subjects
trace elements ,tortoise ,reference interval ,sex ,season ,region ,Veterinary medicine ,SF600-1100 ,Zoology ,QL1-991 - Abstract
Some trace elements are essential for the health of vertebrates, but little is known about their function, the amounts required, and the factors influencing their metabolism in tortoises. The aim of this study was therefore to measure trace elements (chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), molybdenum (Mo), selenium (Se), zinc (Zn)) in heparinized blood plasma of Hermann’s tortoises (Testudo hermanni) (n = 520) from March to September 2022 using inductively coupled plasma mass spectrometry (ICP-MS) and to establish specific reference intervals. Additionally, the influence of sex, season, and region of sample collection on the measured values were evaluated. Significant (p ≤ 0.05) sex-specific differences were found for Cu, Mg, and Mn; seasonal differences were found for Cr, Cu, Mn, Mo, and Se; and the region in which the tortoises were kept significantly impacted Cr, Cu, Fe, Mg, Mo, and Se levels. The results show that all of these factors should be consider when establishing and interpreting blood trace element levels in tortoises.
- Published
- 2024
- Full Text
- View/download PDF
19. Amphibians and Reptiles
- Author
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Pilliod, David S., Esque, Todd C., McNew, Lance B., editor, Dahlgren, David K., editor, and Beck, Jeffrey L., editor
- Published
- 2023
- Full Text
- View/download PDF
20. Swat Team to the Rescue
- Author
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Berish, Joan (Diemer), author and Berish, Joan (Diemer), author
- Published
- 2024
- Full Text
- View/download PDF
21. Situación de la Inteligencia Artificial en el Ecuador en relación con los países líderes de la región del Cono Sur
- Author
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Xavier Barragán-Martínez
- Subjects
ecosistema ia ,metodología ,tortoise ,indicadores ,tecnología ,situación actual ,Technology (General) ,T1-995 ,Environmental sciences ,GE1-350 - Abstract
El objetivo de este trabajo es identificar y comprender el estado de situación del ecosistema de la Inteligencia Artificial (IA) del Ecuador, para lo que se define una metodología de medición del estado de la IA aplicado a los países líderes en este ámbito de la región, pretendiendo reflejar la situación del Ecosistema de Inteligencia Artificial; por lo que, se toma como referencia a la metodología del Índice de IA de Tortoise que define tres pilares de análisis; inversión, innovación e implementación, que utiliza 143 indicadores divididos en siete subpilares: Talento, Infraestructura, Entorno Operativo, Investigación, Desarrollo, Estrategia Gubernamental y Comercial. La propuesta mantiene los primeros cinco subpilares y utiliza uno nuevo denominado Institucionalidad que integra a las estrategias gubernamentales y comerciales. La investigación se suscribe en un método descriptivo, cuantitativo y analítico de revisión de fuentes secundarias y bases de datos de organismos, empresas, gobiernos, entre otras. Los hallazgos muestran que existe una brecha significativa al comparar al ecosistema de la IA en el Ecuador con los ecosistemas de Argentina, Brasil, Chile, Colombia, y Uruguay; mostrando un incipiente uso, adopción de esta tecnología y la falta de políticas públicas que fomenten el aprovechamiento de la IA como medio de desarrollo social, económico y ambiental.
- Published
- 2023
- Full Text
- View/download PDF
22. Effects of head-starting on multi-year space use and survival of an at-risk tortoise
- Author
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Collin J. Richter, Brian D. Todd, Kurt A. Buhlmann, Carmen M. Candal, Pearson A. McGovern, Michel T. Kohl, and Tracey D. Tuberville
- Subjects
Tortoise ,Head-starting ,Space-use ,Population recovery ,Conservation ,Augmentation ,Ecology ,QH540-549.5 - Abstract
A major challenge in the recovery of long-lived at-risk taxa like turtles is low juvenile recruitment. Head-starting—the raising of juveniles to larger sizes to improve survival—is one tool that can be used in circumstances where juvenile recruitment is limited. Due to declining populations and difficulty detecting juveniles, however, lack of knowledge of the ecology of juveniles can hinder efforts to develop and evaluate head-starting programs for many turtle species. We sought to inform recovery efforts of Mojave desert tortoises by quantifying multi-year space use and survival of head-started juveniles after release. We radio-tracked tortoises head-started under three different husbandry treatments that varied in rearing duration (from two to over six years) and whether head-starting included an indoor rearing component the first year. We compared post-release space use and survival as a function of treatment, release size, and time since release. We found that space use, including home range size and site fidelity, varied by husbandry treatment, with smaller and younger tortoises having smaller home ranges and higher site fidelity. Additionally, home range size decreased and site fidelity increased with time since release across treatments. Tortoises with an indoor-rearing component experiencing increased risk of mortality as movement increased compared to tortoises reared solely outdoors. Nevertheless, survival did not differ among treatments or with tortoise age or size. Regardless of husbandry treatment, head-started tortoises exhibited similar space-use and survival overall. Our study provides insight into juvenile tortoise behavior and head-starting as a tool for tortoise conservation.
- Published
- 2024
- Full Text
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23. External Morphological Description of Adult Tortoise (Testudo graeca graeca) and Terrapin (Trachemys scripta elegans).
- Author
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El-Sharnobey, Nermin K. A., Alsafy, Mohamed A. M., El-Gendy, Samir A. A., Abumandour, Mohamed A., and Hanafy, Basma G.
- Subjects
- *
TESTUDINIDAE , *TURTLES , *ADULTS , *CLAWS - Abstract
Our study was focused on the external features differentiation of two adult species of turtles, including a land tortoise (Testudo graeca graeca) and a freshwater turtle (Trachemys scripta elegans), by gross morphological description of head, carapace, plastron, and tail. Generally, turtles show gross morphological differences according to the ecology and the environment. The carapace and legs are the fascinating noticeable parts showing significant differences between tortoise and turtle as T. graeca graeca shows a small carapace length with noticeable convexity. In contrast, the freshwater turtle has a flattened broad carapace adapted to swimming. At the same time, the legs of T. graeca show multiple keratinized spurs with rigid claws, but T. scripta has legs covered with soft, moist skin and thin claws. The plastron is relatively the same in both species, while the head is unique with a large size and red flap in T. scripta. We conclude that the flat body and legs with broad head are a modification for swimming, while the rigid claws with keratinized outer leg skin are signs of land walking adaptation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. Slowly walking down to the more food: relative quantity discrimination in African spurred tortoises (Centrochelys sulcata).
- Author
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Tomonaga, Masaki, Haraguchi, Daiki, and Wilkinson, Anna
- Subjects
- *
TESTUDINIDAE , *MAGNITUDE estimation , *NUMBER systems , *REPTILES , *SOCIAL groups - Abstract
Quantity discrimination, is thought to be highly adaptive as it allows an organism to select greater amounts of food or larger social groups. In contrast to mammals, the processes underlying this ability are not as well understood in reptiles. This study examined the effects of ratio and number size on relative quantity discrimination in African spurred tortoises (Centrochelys sulcata). To assess these effects, tortoises were presented with trays containing favored food pieces in all possible number combinations between 1 and 7. The tortoises had to approach the tray they perceived as having the larger quantity. If correct, they received one piece of food as reinforcement. The results revealed that relative quantity discrimination was influenced by the ratio between the numbers of pieces, with performance improving as the ratio between the numbers increased. This finding suggests that the approximate number system or analogue magnitude estimation may control their behavior. However, as the number size increased, their performance declined, also suggesting that the approximate number system alone could not explain the present results. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
25. A Review of New Testudine Specimens from the Oligocene and Miocene of the Great Plains of North America, Including Descriptions of Two New Taxa
- Author
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Holt, Eric Michael
- Subjects
Planetology ,Biology ,Morphology ,Biology ,Fossil ,Hesperotestudo ,Paleontology ,Testudine ,Tortoise - Abstract
A Review of New Testudine Specimens from the Oligocene and Miocene of the Great Plains of North America, Including Descriptions of Two New TaxabyEric M HoltDoctor of Philosophy in Integrative BiologyUniversity of California, BerkeleyProfessor Emeritus Anthony D Barnosky, ChairThe fossil record of Testudines in North America is well known for some parts of the Tertiary period, but for many stages representing millions of years our knowledge of Testudine diversity is both poor and outdated. The gaps in knowledge are pronounced for the Oligocene and Miocene in North America, despite an abundant fossil record. This study begins to address the gap in our understanding of fossil turtles by utilizing existing museum specimens from the Great Plains and adjacent Rocky Mountain basins, the majority of which have not been previously identified beyond the ordinal level. Updated identifications based on fossil shells are provided and the morphological criteria for recognizing many taxa are clarified, despite there being a bias in museum collections towards subadult and juvenile testudine specimens. A previously unknown regional variant of Gopherus edae is described, and initial steps are taken toward documenting the range of intraspecific morphological variation found within various taxa of Oligopherus, Gopherus, Stylemys, and Hesperotestudo. Chapter One lays the groundwork for future studies on tortoise diversity through time and space, and the relationship between their evolution, distribution, and climate change. In Chapter Two the largely complete shell of a new species of tortoise, Hesperotestudo nicholsorum n. sp., is described from Lemhi County, Idaho, USA. The tortoise genus Hesperotestudo Williams, 1950b, was widespread throughout North America from Canada to El Salvador from the earliest Miocene to the late Pleistocene but retains no extant members. The specimen was collected from Late Hemingfordian (~15-16.3 Ma) sediments in the Railroad Canyon Sequence of the Sixmile Creek Formation. Previous studies have established a late Eocene paleoelevation of 3.7 km for the area. Elevational decrease due to Basin and Range extension did not happen until the middle Miocene, indicating that the fossil locality was higher in the Hemingfordian than the roughly 2 km elevation it is today. This makes H. nicholsorum both the highest elevation specimen of Hesperotestudo currently described and one of the oldest members of its genus. The new taxon shares many morphological similarities with other Hesperotestudo but also exhibits characters more commonly found in Gopherus. In Chapter Three I describe the shell of another new tortoise, Hesperotestudo niobrarensis n. sp., from Cherry County, Nebraska, USA. The specimen was collected in 1933 from Clarendonian sediments in the Ash Hollow Formation of the Ogallala Group. An isolated left epiplastron from the Clarendonian Ash Hollow Formation near Merrit Reservoir in Cherry County, Nebraska is referred to the new species. This new taxon shares many morphological similarities with other Hesperotestudo but also exhibits a unique combination of characters not found in other members of the genus.
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- 2024
26. The effects of sex, season, and natural sunlight on plasma vitamin D3 levels in two chelonian species (Testudo hermanni, Trachemys scripta) and their interaction with calcium, phosphate, and magnesium as associated plasma compounds
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Gregor Geisler, Christoph Leineweber, Michael Pees, Sabine Öfner, and Rachel E. Marschang
- Subjects
vitamin D3 ,tortoise ,turtle ,reference interval ,season ,sunlight ,Zoology ,QL1-991 - Abstract
Species specific physiology, seasonal changes, sex, and husbandry factors all influence the blood chemistry of chelonians, including vitamin D3, calcium, phosphate and magnesium levels. Problems in the supply of many of these are commonly seen in captive reptiles. The goal of this study was to measure vitamin D3, calcium, phosphate and magnesium in plasma from captive, healthy, adult Hermann’s tortoises (Testudo hermanni) and pond sliders (Trachemys scripta). Samples were categorized and compared based on species, sex, season, and access to sunlight as a central husbandry element. Blood samples of 522 Hermann’s tortoises and 188 pond sliders, taken from March to September 2022, were included in the study. New reference intervals for vitamin D3, calcium, phosphate and magnesium were established, with specific reference intervals calculated for each species, sex, and season in those cases in which significant differences were found based on these factors. For the calculation of reference intervals for vitamin D3 the factors species, season and access to sunlight were considered. Vitamin D3 levels differed by access to sunlight in some seasons depending on the species and were generally higher in Hermann’s tortoises. Plasma vitamin D3 levels did not correlate with calcium, phosphorus or magnesium levels on a larger scale in either species. Calcium, phosphate, and magnesium were higher in females than in males of both species, and magnesium was higher in Hermann’s tortoises than in pond sliders. Our results can be helpful in a more specific interpretation of blood results and support previous findings that direct sunlight is an important factor in chelonian health. More studies are needed to better understand the role of other hormonal influence on the vitamin D3, calcium, phosphate and magnesium metabolism in chelonians.
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- 2023
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27. Bilateral palpebral reduction and concurrent mycoplasmosis in a wild Agassiz's desert tortoise (Gopherus agassizii).
- Author
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Jacobson, Elliott R., Berry, Kristin H., Brooks, Dennis E., and Roberts, John F.
- Subjects
- *
MYCOPLASMA , *EYELIDS , *TESTUDINIDAE , *POLYMERASE chain reaction , *NASAL cavity , *DESERTS - Abstract
A wild Agassiz's desert tortoise, Gopherus agassizii, with bilateral eyelid reduction and plaques of tissue covering the superior surface of both corneas was examined in the field and subsequently submitted to the University of Florida for diagnostics. Polymerase chain reaction (PCR), from a swab of both corneas, was positive for Mycoplasma agassizii. Two months later, the tortoise was euthanatized and necropsied. There was increased bulbar exposure associated with dermal excoriation of periocular scales in both superior and inferior palpebra resulting in an increased palpebral fissure opening. Concurrently, there was bilateral conjunctivitis of the nictitating membranes and squamous metaplasia of the bulbar conjunctiva. Using PCR, Mycoplasma testudineum, another pathogen of tortoises, was identified in both nasal cavities, and the upper respiratory tract histopathological findings were consistent with those described for M. testudineum in Agassiz's desert tortoises. Although eye disease has been reported in desert and gopher (Gopherus polyphemus) tortoises with mycoplasmosis, widespread loss of palpebral tissue, conjunctivitis of the nictitans, and squamous metaplasia of the bulbar conjunctiva have not been reported in tortoises. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
28. Biogenic Elements and Heavy Metals in Hermann's Tortoises— Testudo hermanni : Effect on Serum Biochemistry and Oxidative Status Parameters.
- Author
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Kirchner, Róbert, Kirchnerová, Soňa, Tirpák, Filip, Halo Jr., Marko, Slanina, Tomáš, Tokárová, Katarína, Kováčik, Anton, Miškeje, Michal, Komárňanská, Veronika, Greń, Agnieszka, Formicki, Grzegorz, and Massányi, Peter
- Subjects
- *
HEAVY elements , *INDUCTIVELY coupled plasma mass spectrometry , *HEAVY metals , *TESTUDINIDAE , *BIOCHEMISTRY , *CHEMICAL elements - Abstract
Simple Summary: Animal health is directly linked to viability of the population, which may be affected by anthropogenic activities and diseases. Biomarkers such as serum chemistry and parameters of oxidative balance are good indicators of an overall biological status, providing information on the effects of contaminants on the organism. The objective of this work was to analyze biochemical and molecular indicators and their correlations to biogenic and risk elements in Testudo hermanni. Biochemical parameters were analyzed using the commercial kit DiaSys and biochemical analyzer Randox RX Monza. Sodium, potassium, and chlorides were measured using the EasyLite analyzer. Oxidative stress was evaluated using colorimetric and luminometric methods. Quantification of chemical elements in the animal blood was carried out using inductively coupled plasma mass spectrometry. Biochemical values of analyzed samples from Hermann's tortoises were almost the same as referential values described by multiple authors, with minor aberrations in the total protein parameter. Values of arsenic (As) and nickel (Ni) showed correlation with biochemical parameters and the parameters of oxidative stress. Cadmium (Cd) exhibited correlation with the biochemical parameter aspartate aminotransferase (AST). Finally, this study detected heavy metals and their significant correlations with selected biochemical and molecular parameters in Hermann's tortoises. Background: Conservation of species diversity is the need of the hour for preserving life forms on Earth. Extinction of any part of the ecosystem has negative impacts on many processes and systems. The objective of this work was to analyze some biochemical and molecular indicators and their correlations to biogenic elements and heavy metals in Testudo hermanni (n = 16). Methods: Biochemical parameters were analyzed using the commercial kit DiaSys and biochemical analyzer Randox RX Monza. Sodium, potassium, and chlorides were measured using the EasyLite analyzer. Oxidative stress was evaluated using colorimetric and luminometric methods. Quantification of chemical elements in the blood was carried out using inductively coupled plasma mass spectrometry (ICPS). Results: Biochemical values of analyzed samples from Hermann's tortoises were almost the same as referential values described by multiple authors, with minor aberrations in the total protein parameter. Values of arsenic (As) and nickel (Ni) showed correlation with biochemical parameters and the parameters of oxidative stress. Cadmium (Cd) exhibited correlation with aspartate aminotransferase (AST). Conclusions: This study reports correlations among four heavy metals, and their levels were again correlated with biochemical and molecular parameters in Hermann's tortoises. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
29. Clinical and Radiological Report of a Soft Shell in a Tortoise (Testudo graeca).
- Author
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Etemadi, Sahar, Hashemi-Asl, Seyed Mohammad, and Rakhshanpour, Alaleh
- Subjects
RADIOLOGY ,TORTOISESHELL ,ANIMAL breeding ,VETERINARY medicine ,OPERATIVE surgery - Abstract
There are different types of metabolic bone diseases, and nutritional secondary hyperparathyroidism, or nutritional metabolic bone disease, is the most common one in turtles. This disease may cause deformities and paralysis of the posterior limb. In this article, we describe a tortoise (Testudo gareca) with soft shell syndrome and cloacal inflammation. A 1.5-year-old tortoise weighing 600 grams was referred to the faculty clinic for anorexia and inability to defecate. During the clinical examination, the shell was observed to be curvy and excessively soft when touched, along with swelling around the cloaca. Lateral and dorsoventral radiographs were performed to further evaluate the patient. This clinical report presents the clinical findings and radiographic profile of a soft shell in a tortoise. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. Antinociceptive effects of nortriptyline and desipramine hydrochloride in Speke's hinge‐back tortoise (Kinixys Spekii).
- Author
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Makau, Christopher M., Towett, Philemon K., Kanui, Titus I., and Abelson, Klas S. P.
- Subjects
- *
TESTUDINIDAE , *VETERINARY drugs , *ANALGESICS , *TRICYCLIC antidepressants , *BACK muscles , *FORMALDEHYDE , *REPTILES - Abstract
Some of the most commonly used analgesic drugs in animals are of questionable efficacy or present adverse side effects among the various species of reptiles. Tricyclic antidepressants have been demonstrated to have antinociceptive effects in several animal models of pain and could be a good alternative for use in reptiles. The aim of the study was to investigate the antinociceptive effects of nortriptyline and desipramine hydrochloride in Speke's hinge‐back tortoise. A total of 24 animals weighing 600–1000 g were used for nociceptive tests, i.e., formalin, capsaicin, and hot plate tests. Drugs were administered intracoelomically 30 min before starting the tests. The time spent in nocifensive behavior and the associated observable effects during the tests were recorded. Only the highest dose of 40 mg/kg of nortriptyline hydrochloride caused statistically significant decrease in nocifensive behavior in both the formalin and the capsaicin test. Desipramine hydrochloride at doses of 20 and 40 mg/kg caused statistically significant decrease in nocifensive behavior in the formalin test. Also, desipramine hydrochloride at doses of 15, 20, and 60 mg/kg caused statistically significant decrease in nocifensive behavior in the capsaicin test. None of the doses used for both drugs had any statistically significant effect on nocifensive behavior in the hot plate test. The results show that nortriptyline and desipramine hydrochloride have significant antinociceptive effects in the chemical but not thermal inflammatory pain‐related behavior in the Speke's hinge‐back tortoise. The most common associated side effect following administration of the higher doses of either of the drugs is excessive salivation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. Behavioural Impact of Captive Management Changes in Three Species of Testudinidae
- Author
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Jessica T. Turner, Alexandra L. Whittaker, and David McLelland
- Subjects
reptile ,tortoise ,welfare ,diversity index ,behaviour ,enrichment ,Biology (General) ,QH301-705.5 ,Zoology ,QL1-991 - Abstract
Reptile behaviour and welfare are understudied in comparison with mammals. In this study, behavioural data on three species (Astrochelys radiata, Stigmochelys pardalis, Aldabrachelys gigantea) of tortoises were recorded before and after an environmental change which was anticipated to be positive in nature. The environmental changes differed for each population, but included a substantial increase in enclosure size, the addition of substrate material, and a change in handling procedure. A tortoise-specific ethogram was created to standardise data collection. Focal behaviour sampling was used to collect behavioural data. Changes in the duration of performance of co-occupant interaction and object interaction in the leopard (Stigmochelys pardalis) and Aldabra (Aldabrachelys gigantea) tortoises were observed following the environmental changes. The Shannon–Weiner diversity index did not yield a significant increase after the changes but had a numerical increase which was relatively greater for the leopard tortoise group, which had experienced the greatest environmental change. The leopard tortoises also demonstrated changes in a greater number of behaviours compared to the other species, and this was sustained over the study period. However, this included a behaviour indicative of negative affect: aggression. Whilst we are unable to conclude that welfare was improved by the management changes, there are suggestions that behavioural diversity increased, and some promotion of positive social behaviours occurred.
- Published
- 2022
- Full Text
- View/download PDF
32. Bone histology of Neogene angulate tortoises (Testudines: Testudinidae) from South Africa: palaeobiological and skeletochronological implications
- Author
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Mohd Shafi Bhat, Anusuya Chinsamy, and John Parkington
- Subjects
bone microstructures ,skeletochronology ,Langebaanweg ,Pliocene ,tortoise ,Western Cape ,Science - Abstract
Here we examine the tibial microstructure of modern and fossil angulate tortoises to assess the histology and growth from the late Miocene–early Pliocene, Pleistocene through to modern forms. The cross-sections of all the tibiae sampled revealed highly vascularized, uninterrupted, fibrolamellar bone tissue during early ontogeny, which suggests that early growth was fast. However, later in ontogeny, growth was slower, as indicated by the deposition of parallel-fibred bone tissue in the outer cortex, and even ceased periodically, as indicated by lines of arrested growth. Comparative analyses of the growth rates of the tortoises from different time periods showed that the tortoises from the late Miocene–early Pliocene Langebaanweg locality and from Diepkloof Rock Shelter had relatively slower growth rates under less optimal growth conditions. Additionally, these prehistoric specimens show extensive remodelling, and several generations of secondary osteons further suggest functional and/or metabolic stresses on the skeleton. Palaeoenvironmental reconstructions suggest that it was mostly cooler and drier with seasonal fluctuations in late Miocene–early Pliocene, and it is likely that Chersina responded to these conditions by having a lower rate of growth as compared with their modern counterparts, which thrive in the current prevailing more favourable Mediterranean type of climate.
- Published
- 2023
- Full Text
- View/download PDF
33. Mimicking the Natural World with Nanoarchitectonics for Self‐Assembled Superstructures.
- Author
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Jadhav, Ratan W., Nadimetla, Dinesh N., Gawade, Vilas K., Jones, Lathe A., and Bhosale, Sheshanath V.
- Subjects
- *
SMALL molecules , *SOLAR cells , *SURFACE morphology , *SURFACE area , *CATERPILLARS - Abstract
Scientists are often inspired by nature, where naturally occurring morphologies, such as those that resemble animals and plants, can be created in the lab. In this review, we have provided an overview on complex superstructures of animals, plants and some similar shapes from the natural world. We begin this review with a discussion about the formation of various animal‐like shapes from small organic molecules and polymers, and then move onto plants and other selected shapes. Literature surveys reveal that most of the polymers studied tend to form micellar structures, with some exceptions. Nevertheless, small organic molecules tend to form not only micellar structures but also other animal shapes such as worms and caterpillars. These superstructures tend to have high surface areas and variable surface morphology, making them very useful material for applications in various field such as catalysis, solar cells, and biomedicine, amongst others. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
34. Resolución de traumatismo por mordedura de perro en tortuga chaqueña (Chelonoidis chilensis) utilizando tintura de propóleo.
- Author
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Joerg Richard, Vetter-Hiebert and Sergio Rafael, Pintos-Casamayouret
- Subjects
EPOXY resins ,CONNECTIVE tissues ,PROPOLIS ,OPEN spaces ,TESTUDINIDAE - Abstract
Copyright of Journal of the Selva Andina Animal Science is the property of Fundacion Selva Andina Research Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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35. Gömböc the Great.
- Author
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Strickert, Indigo M. and Bradford, Lori
- Subjects
SONNET ,MATHEMATICS ,POETRY (Literary form) - Abstract
A sonnet written about the mathematics behind the self-righting shape of some tortoise shells. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Behavioural Impact of Captive Management Changes in Three Species of Testudinidae.
- Author
-
Turner, Jessica T., Whittaker, Alexandra L., and McLelland, David
- Subjects
- *
TESTUDINIDAE , *SPECIES , *AFFECT (Psychology) , *LEOPARD , *REPTILES , *ACQUISITION of data - Abstract
Reptile behaviour and welfare are understudied in comparison with mammals. In this study, behavioural data on three species (Astrochelys radiata, Stigmochelys pardalis, Aldabrachelys gigantea) of tortoises were recorded before and after an environmental change which was anticipated to be positive in nature. The environmental changes differed for each population, but included a substantial increase in enclosure size, the addition of substrate material, and a change in handling procedure. A tortoise-specific ethogram was created to standardise data collection. Focal behaviour sampling was used to collect behavioural data. Changes in the duration of performance of co-occupant interaction and object interaction in the leopard (Stigmochelys pardalis) and Aldabra (Aldabrachelys gigantea) tortoises were observed following the environmental changes. The Shannon–Weiner diversity index did not yield a significant increase after the changes but had a numerical increase which was relatively greater for the leopard tortoise group, which had experienced the greatest environmental change. The leopard tortoises also demonstrated changes in a greater number of behaviours compared to the other species, and this was sustained over the study period. However, this included a behaviour indicative of negative affect: aggression. Whilst we are unable to conclude that welfare was improved by the management changes, there are suggestions that behavioural diversity increased, and some promotion of positive social behaviours occurred. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
37. Kaplumbağa Figürünün Mitolojik Olarak İncelenmesi ve Anadolu Dokumalarında Kullanımı
- Author
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Elif Aksoy
- Subjects
orta asya ,hayvan üslubu ,kaplumbağa ,mitoloji ,dokuma ,central asia ,animal style ,tortoise ,mythology ,weaving ,Social sciences (General) ,H1-99 - Abstract
İslam öncesi dönemde Orta ve İç Asya’da gelişen hayvan üslubu, belirli özelliklere sahip biçimde betimlenmiş hayvan figürlerinin yer aldığı sanat eserlerini kapsamaktadır. Bozkır yaşamında gelişen bu üslup, sadece Orta Asya’da değil, aynı zamanda Ön Asya ve Orta Avrupa’ya kadar yayılarak çeşitli uygarlıkların sanat eserlerinde uzun süre devam etmiş ve belli bir temayı veya bir olayı anlatan sembol haline gelmiştir. Bu üslubun bu kadar geniş bir coğrafyaya yayılmasının nedeni, bozkırda zor şartlar altında yaşayan göçebe insanların hayvanlarla yakın ilişki kurmaları ve onlara kendi inançlarına göre farklı anlamlar yüklemeleridir. Birçok eserde ejder ve yılan gibi hayvanlarla birlikte görülen kaplumbağalar; yaratılışı, kozmik düzeni, ebediyeti ve istikrarı sembolize etmektedir. Anadolu kültüründe farklı sembolik anlamlarla tasvir edilen kaplumbağa figürü, yöre insanının duygusunu, inancını ve kültürünü yansıtmakla birlikte halk edebiyatında ve söylencelerde de kişileştirilerek bir karakter olarak karşımıza çıkmaktadır. Bu çalışmada, dünyanın farklı yerlerinde görülen kaplumbağa figürünün halk inançlarındaki anlamı ve neyi temsil ettiği mitolojik olarak incelenecek ve Anadolu dokumalarının kompozisyonlarında süsleme unsuru olarak nasıl yer aldığı belirlenecektir.
- Published
- 2022
- Full Text
- View/download PDF
38. A novel immunofluorescence study of Lingual Salivary Glands in the Egyptian Tortoise (Testudo kleinmanni) and its ecological significance.
- Author
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Rashwan, Ahmed M., El-Gendy, Samir A.A., El-Mansi, Ahmed A., Eldesoqui, Mamdouh B., and Alsafy, Mohamed A.M.
- Subjects
CELL adhesion ,MICROSCOPY ,STROMAL cells ,EPITHELIAL cells ,GLANDS ,SALIVARY glands - Abstract
The Egyptian tortoise (Testudo kleinmanni) is remarkably adapted to its harsh desert environment, a characteristic that is crucial for its survival under extreme conditions. This study was aimed at providing a deeper understanding of the lingual salivary gland structures in the Egyptian tortoise and examining how these structures help the tortoise manage hydration and nutrition in arid conditions. Utilizing a combination of light microscopy and immunofluorescence, this research introduced pioneering methods involving seven different antibodies, marking a first in the study of reptilian salivary glands. Our investigations categorized the tortoise's salivary glands into papillary and non-papillary types. The papillary glands were further classified into superficial, deep, interpapillary, and intraepithelial salivary glands, while non-papillary glands included superficial and deep lingual types. Structurally, these glands are organized into lobules, delineated by interlobular septa, and are equipped with a duct system comprising interlobular, intercalated, and main excretory ducts with gland openings on the tongue's surface and the papillae surfaces. Notably, the superficial glands displayed both tubuloalveolar and acinar configurations, whereas the deep lingual glands were exclusively acinar. Immunofluorescence results indicated that α-smooth muscle actin (α-SMA) was prevalent in myoepithelial cells, myofibroblasts, and blood vessels, suggesting their integral role in glandular function and support. E-cadherin was predominantly found in epithelial cells, enhancing cell adhesion and integrity, which are critical for efficient saliva secretion. Importantly, Mucin 1 (MUC1) and Mucin 5B (MUC5B) staining revealed that most glands were mucous in nature, with MUC5B specifically marking mucin within secretory cells, confirming their primary function in mucous secretion. PDGFRα and CD34 highlighted the presence of telocytes and stromal cells within the glandular and interlobular septa, indicating a role in structural organization and possibly in regenerative processes. Cytokeratin 14 expression was noted in the basal cells of the glands, underscoring its role in upholding the structural foundation of the epithelial barrier. In conclusion, this detailed morphological and immunological characterization of the Egyptian tortoise's salivary glands provides new insights into their complex structure and essential functions. These findings not only enhance our understanding of reptilian physiology but also underline the critical nature of salivary glands in supporting life in arid environments. This study's innovative use of a broad range of immunofluorescence markers opens new avenues for further research into the adaptive mechanisms of reptiles. • Novel immunofluorescence study unveils salivary gland structure in Egyptian tortoise. • Immunofluorescence reveals α-SMA prevalence in myoepithelial cells, crucial for gland function. • E-cadherin ensures adhesion in epithelial cells; CK14 maintains integrity in basal cells. • MUC1 and MUC5B staining confirm mucous nature and primary function in secretion. • CD34 and PDGFRα highlight presence of telocytes and stromal cells in salivary gland. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. Silver lining around the cloud: Young ones leaving the tradition of turtle exploitation in buffer zone of Chitwan National Park.
- Author
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Aryal, Chandramani and Paudel, Pooja
- Subjects
TURTLES ,TURTLE conservation ,PROTECTED areas ,INFERENTIAL statistics ,TURTLE populations - Abstract
Freshwater turtles and tortoise are one of the oldest yet most threatened groups among the vertebrates. Exploitation from their natural habitats for consumption as food and medicine, pet and trade are some of the threats experienced by turtles. Protected areas are supposed to provide some degree of protection to these groups, however, the conservation status and role of buffer zone, a protected area of level VI category according to IUCN Category of Protected Areas is poorly known. Thus, the study was conducted with the aim of fulfilling the void in knowledge about the conservation status of turtles in the buffer zone of Chitwan National Park. Prior to the field, standard questionnaire related to the distribution, exploitation and conservation of turtles were prepared which was employed in household survey conducted in 99 households. The data thus collected were managed in Microsoft Excel and was analyzed by using descriptive statistics followed by inferential statistics. Data analysis was done using R software. In the study area, elongated tortoise was the most common species that were reported by respondents to observe, while tricariante hill turtle was commonly used turtle. Consumption as meat was the most dominant cause of exploitation and exploitation was significantly associated with family collecting turtle, perception about population trend of turtle and knowledge on threatened status of turtles. Furthermore, exploitation tendency was correlated with age and involvement of family member in turtle exploitation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Histopathological Perspectives of Multiple Organs in a Red-Footed Tortoise (Chelonoidis carbonaria) with Suspected Metabolic Bone Disease: A Case Report.
- Author
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Plumeriastuti, Hani, Proboningrat, Annise, Legowo, Djoko, Putra, Bilqisthi Ari, Hendarti, Gracia Angelina, and Achmad, Agung Budianto
- Subjects
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METABOLIC bone disorders , *TESTUDINIDAE , *VITAMIN D metabolism , *MYOSITIS , *KIDNEY cortex , *HEART , *SKELETAL muscle - Abstract
Introduction: Exotic pet lovers' interest in keeping tortoises is increasing all over the world, including Indonesia. However, this trend cannot be separated from the potential emergence of various health problems in tortoises. One of the problems that often affects tortoises is metabolic bone disease. Metabolic bone disease (MBD) is a disorder related to the mechanisms of vitamin D and calcium metabolism, which generally occurs in reptiles, especially Chelonia and Lizards. Case Presentation: A 3-month-old redfooted tortoise, which was clinically suspected to have a MBD, was necropsied as an effort to support the provisional diagnosis through histopathological evaluation. The purpose of this examination was to analyze the impact of the disease on various organs microscopically in patients with suspected MBD. The results showed a decrease in the number of trabeculae and hematopoietic cells in the metatarsal bones; moderate myonecrotic changes and atrophy in the skeletal muscle; inflammation of the perineuron; acute tubular necrosis and mild edema of the renal cortex; congestion and an increase in the number of melanomacrophages in the liver; as well as epicarditis and myocarditis in the heart. Conclusion: Several forms of the histopathological changes seem to indicate a pathophysiological relationship between the suspected metabolic bone disease and the multiple organs examined. [ABSTRACT FROM AUTHOR]
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- 2022
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41. Antibodies against Two Testudinid Herpesviruses in Pet Tortoises in Europe.
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Leineweber, Christoph and Marschang, Rachel E.
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TESTUDINIDAE , *HERPESVIRUSES , *SERODIAGNOSIS , *LATENT infection , *ANTIBODY titer , *IMMUNOGLOBULINS , *VIRAL antibodies - Abstract
Simple Summary: Herpesviruses are important pathogens in tortoises and cause latent infections. Serological testing is therefore an important tool for the detection of herpesvirus-infected tortoises. This retrospective study describes the detection of antibodies against two herpesviruses in pet tortoises in Europe. Of the 1728 samples tested, antibodies against one or both of the viruses used were detected in 122 (7.06%) of the tortoises. Detection rates differed depending on virus type, host species, and year of sampling. For individual viruses, detection rates also differed depending on season and country of origin. A better understanding of both the herpesviruses' prevalences and the immune response to infection will help protect these animals in future. Herpesviruses are important pathogens of tortoises, and several serologically and genetically distinct virus types have been described in these animals. Virus neutralization testing is commonly used in Europe to determine previous infection with the two types most often found in pet European tortoises, testudinid herpesvirus (TeHV) 1 and 3. In this retrospective study, the results of serological testing for antibodies against each of these viruses in serum or plasma samples from 1728 tortoises were evaluated, and antibody detection rates were compared based on virus type, host species, year, season, and country of origin. Antibodies (titer 2 or higher) against at least one of the two viruses used were detected in a total of 122 (7.06%; 95% CI 5.95–8.37%) of the animals tested. The antibody detection rates differed significantly depending on the tortoise species (p < 0.0001) and the year of sampling (TeHV1 p = 0.0402; TeHV3 p = 0.0482) for both virus types. For TeHV1, antibody detection rates differed significantly (p = 0.0384) by season. The highest detection rate was in summer (5.59%; 95% CI 4.10–7.58%), and the lowest was in fall (1.25%; CI 0.53–2.87%). TeHV1 antibody detection rates did not differ significantly (p = 0.7805) by country, whereas TeHV3 antibody detection rates did (p = 0.0090). The highest detection rate, 12.94% (95% CI 7.38–21.70%), was found in samples from Italy. These results support previous hypotheses on the species' susceptibility to TeHV1 and 3 and the use of serology as a diagnostic test for the detection of herpesvirus-infected tortoises. [ABSTRACT FROM AUTHOR]
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- 2022
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42. Effects of inhibition of Nav1.3, Nav1.7, and Nav1.8 channels on pain-related behavior in Speke's hinge-back tortoise (Kinixys spekii)
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Makau, Christopher M., Towett, Philemon K., Kanui, Titus I., Abelson, Klas S.P., Makau, Christopher M., Towett, Philemon K., Kanui, Titus I., and Abelson, Klas S.P.
- Abstract
Comparative studies using reptiles as experimental animals in pain research could expand our knowledge on the evolution and adaptation of pain mechanisms. Currently, there are no data reported on the involvement of voltage-gated sodium ion channels on nociception in reptiles. The aim of this study was to investigate the involvement of Nav1.3, Nav1.7, and Nav1.8 ion channels in nociception in Speke's hinge-back tortoise. ICA 121341 (selective blocker for Nav1.1/Nav1.3), NAV 26 (selective blocker for Nav1.7), and A803467 (selective blocker for Nav1.8) were used to investigate the involvement of Nav1.3, Nav1.7, and Nav1.8, respectively. The chemicals were administered intracoelomically thirty minutes before the start of nociceptive tests. ICA 121341 did not cause a significant decrease in the time spent in pain-related behavior in all the nociceptive tests. NAV 26 and A8034667 caused a statistically significant decrease in the mean time spent in pain-related behavior in the formalin and capsaicin tests. Only A803467 caused a statistically significant increase in the mean latency to pain-related behavior in the hot plate test. NAV 26 and A803467 had no observable side effects. In conclusion, Nav1.7 and Nav1.8 are involved in the processing of chemically induced inflammatory pain in Speke's hinge back tortoise. In addition, Nav1.8 are also significantly involved in the development of thermal-induced pain-related behavior in this species of reptile. However, our results do not support the involvement of Nav1.3 on the development of chemical or thermal induced pain-related behavior in the Speke's hinge back tortoise.
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- 2024
43. Parasites of reptiles in Iran (1922-2023): A literature review.
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Sazmand A, Miadfar M, Deak G, Babaei M, Mendoza-Roldan JA, and Otranto D
- Abstract
Reptiles are among the most diverse groups of animals, inhabiting nearly all continents and environments. Understanding their parasite biodiversity has garnered significant interest, particularly from a One Health perspective. Although the highly diverse reptile fauna of Iran, comprising 272 species i.e. 89 snakes (Serpentes), 171 lizards (Sauria), 8 turtles, 2 tortoises (Testudines), 1 crocodile (Crocodilia), and 1 worm-lizard (Amphisbaenia), there is a shortage of information about parasites. The present review is a compilation of 62 studies published from 1922 to August 2024. We present information on 56 species of reptiles from five groups (amphisbaenians, crocodiles, testudines, snakes, and lizards) and 98 parasitic taxa belonging to different protozoa and metazoa i.e. nematodes, cestodes, trematodes, acanthocephala, leeches, ticks, mites, and myiasis -producing flies. Although 63 taxa were diagnosed at the species level, 35 parasite taxa were only reported at the genus or family levels. Reviewing the literature, we found a paucity of information about endemic reptiles several of which are vulnerable species. Considering that some of the detected parasites e.g. Cryptosporidium and amoebae have serious clinical and/or public health threats molecular diagnostic techniques are needed for precise identification and understanding of the epidemiology and the potential zoonotic implications associated with parasites of reptiles. There is also a need to understand the exact distribution and host-parasite associations in different reptilian species present in Iran including the role of the reptiles as intermediate and reservoir hosts., Competing Interests: The authors declare no conflict of interest., (© 2024 The Authors.)
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- 2024
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44. Thresholds and Tortoises: Modernist Animality in Pirandello’s Fiction
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Godioli, Alberto, Jansen, Monica, Van den Bergh, Carmen, Pugliese, Stanislao G., Series Editor, and Ferrara, Enrica Maria, editor
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- 2020
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45. Biogenic Elements and Heavy Metals in Hermann’s Tortoises—Testudo hermanni: Effect on Serum Biochemistry and Oxidative Status Parameters
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Róbert Kirchner, Soňa Kirchnerová, Filip Tirpák, Marko Halo, Tomáš Slanina, Katarína Tokárová, Anton Kováčik, Michal Miškeje, Veronika Komárňanská, Agnieszka Greń, Grzegorz Formicki, and Peter Massányi
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tortoise ,blood biochemistry ,oxidative stress ,biogenic element ,heavy metals ,Veterinary medicine ,SF600-1100 ,Zoology ,QL1-991 - Abstract
Background: Conservation of species diversity is the need of the hour for preserving life forms on Earth. Extinction of any part of the ecosystem has negative impacts on many processes and systems. The objective of this work was to analyze some biochemical and molecular indicators and their correlations to biogenic elements and heavy metals in Testudo hermanni (n = 16). Methods: Biochemical parameters were analyzed using the commercial kit DiaSys and biochemical analyzer Randox RX Monza. Sodium, potassium, and chlorides were measured using the EasyLite analyzer. Oxidative stress was evaluated using colorimetric and luminometric methods. Quantification of chemical elements in the blood was carried out using inductively coupled plasma mass spectrometry (ICPS). Results: Biochemical values of analyzed samples from Hermann’s tortoises were almost the same as referential values described by multiple authors, with minor aberrations in the total protein parameter. Values of arsenic (As) and nickel (Ni) showed correlation with biochemical parameters and the parameters of oxidative stress. Cadmium (Cd) exhibited correlation with aspartate aminotransferase (AST). Conclusions: This study reports correlations among four heavy metals, and their levels were again correlated with biochemical and molecular parameters in Hermann’s tortoises.
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- 2023
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46. Health assessment of wild speckled dwarf tortoises, CHERSOBIUS SIGNATUS
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Livio Galosi, Anna Rita Attili, Stefania Perrucci, Francesco C. Origgi, Adolfo Maria Tambella, Giacomo Rossi, Vincenzo Cuteri, Maira Napoleoni, Nicholas Aconiti Mandolini, Gianni Perugini, and Victor J. T. Loehr
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Health assessment ,Chersobius [Homopus] signatus ,Reptile ,Tortoise ,Wildlife ,Veterinary medicine ,SF600-1100 - Abstract
Abstract Background In free-ranging reptile populations, bacterial, fungal, viral and parasitic pathogens may affect hosts through impairment in movements, thermoregulation, reproduction, survival, and population dynamics. The speckled dwarf tortoise (Chersobius [Homopus] signatus) is a threatened species that is mostly restricted to the Succulent Karoo biome in South Africa, and little information on pathogens of this species is available yet. We derived baseline parameters for five males and five females that were captured to genetically enhance a conservation breeding program in Europe. Upon collection of the tortoises, ticks were removed and identified. Immediately upon arrival in Europe, ocular, nasal, oral and cloacal swabs were taken for viral, bacteriological and mycological examinations. Fecal samples were collected before and 1 month after fenbendazole treatment, and analyzed for parasites. A panel of PCR, aiming to detect herpesviruses, adenoviruses and iridoviruses, was carried out. Results Samples were negative for viruses, while bacteriological examination yielded detectable growth in 82.5% of the swabs with a mean load of 16 × 107 ± 61 × 108 colony forming units (CFU) per swab, representing 34 bacterial species. Cloacal and oral swabs yielded higher detectable growth loads than nasal and ocular swabs, but no differences between sexes were observed. Fungi and yeasts (mean load 5 × 103 ± 13 × 103 CFU/swab) were detected in 25% of the swabs. All pre-treatment fecal samples were positive for oxyurid eggs, ranging from 200 to 2400 eggs per gram of feces, whereas after the treatment a significantly reduced egg count (90–100% reduction) was found in seven out of 10 individuals. One remaining individual showed 29% reduction, and two others had increased egg counts. In five tortoises, Nycthocterus spp. and coccidian oocysts were also identified. Soft ticks were identified as Ornithodoros savignyi. Conclusions Our baseline data from clinically healthy individuals will help future studies to interpret prevalences of microorganisms in speckled dwarf tortoise populations. The study population did not appear immediately threatened by current parasite presence.
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- 2021
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47. Jingmen Tick Virus in Ticks from Kenya.
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Ogola, Edwin O., Kopp, Anne, Bastos, Armanda D. S., Slothouwer, Inga, Marklewitz, Marco, Omoga, Dorcus, Rotich, Gilbert, Getugi, Caroline, Sang, Rosemary, Torto, Baldwyn, Junglen, Sandra, and Tchouassi, David P.
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TICKS , *REVERSE transcriptase polymerase chain reaction , *RNA - Abstract
Jingmen tick virus (JMTV) is an arbovirus with a multisegmented genome related to those of unsegmented flaviviruses. The virus first described in Rhipicephalus microplus ticks collected in Jingmen city (Hubei Province, China) in 2010 is associated with febrile illness in humans. Since then, the geographic range has expanded to include Trinidad and Tobago, Brazil, and Uganda. However, the ecology of JMTV remains poorly described in Africa. We screened adult ticks (n = 4550, 718 pools) for JMTV infection by reverse transcription polymerase chain reaction (RT-PCR). Ticks were collected from cattle (n = 859, 18.88%), goats (n = 2070, 45.49%), sheep (n = 1574, 34.59%), and free-ranging tortoises (Leopard tortoise, Stigmochelys pardalis) (n = 47, 1.03%) in two Kenyan pastoralist-dominated areas (Baringo and Kajiado counties) with a history of undiagnosed febrile human illness. Surprisingly, ticks collected from goats (0.3%, 95% confidence interval (CI) 0.1–0.5), sheep (1.8%, 95% CI 1.2–2.5), and tortoise (74.5%, 95% CI 60.9–85.4, were found infected with JMTV, but ticks collected from cattle were all negative. JMTV ribonucleic acid (RNA) was also detected in blood from tortoises (66.7%, 95% CI 16.1–97.7). Intragenetic distance of JMTV sequences originating from tortoise-associated ticks was greater than that of sheep-associated ticks. Phylogenetic analyses of seven complete-coding genome sequences generated from tortoise-associated ticks formed a monophyletic clade within JMTV strains from other countries. In summary, our findings confirm the circulation of JMTV in ticks in Kenya. Further epidemiological surveys are needed to assess the potential public health impact of JMTV in Kenya. [ABSTRACT FROM AUTHOR]
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- 2022
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48. Analysis of 'RICE' benefits on rice–tortoise (Chincmys reevesii) co‐culture system.
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Li, Liu, Xiaofei, Cheng, Zhonggui, Xie, Li, Zou, Chunfang, Zeng, Xiangyi, Cheng, Kun, Zhou, Zhicai, Huang, Hao, Wu, Dongwu, Wang, and Shiming, Deng
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SUSTAINABLE agriculture , *ORGANIC farming , *RICE , *AGRICULTURAL productivity , *MONOCULTURE agriculture , *WATER quality - Abstract
Advantages of the rice–fish co‐culture system had gained increasing attention to resolve escalating global food security demand. However, many benefits in the rice–tortoise co‐culture system had rarely been investigated. In this study, we firstly proposed 'RICE' benefits, which came from the initial abbreviation of the four words including reduce, increase, co‐existence and ecology to illustrate the advantages of the rice–tortoise co‐culture system. We constructed three groups including the tortoise monoculture group (TM), the rice monoculture group (RM) and the rice–tortoise co‐culture group (RT) to investigate this system. The 84 juvenile tortoises with the weight of 36.0 ± 2.0 g were conducted for 9 blue plastic round tanks during the 74 days of the tortoises and rice co‐culture stage. The results showed that the system could remarkably save hectare farmland acreages, irrigation water resources, reduce the use of fertilizers and pesticides, and relieve eutrophication pollution from excess nitrogen and phosphorus. Compared with the rice monoculture group, the grain yields, grain rate, 1000‐grain weights and net incomes in the rice–tortoise co‐culture group were evidently increased The results of the tortoise growth performance parameters in the rice–tortoise co‐culture group were significantly greater than those in the tortoise monoculture group Particularly, the products amino acid quality of rice and tortoises were remarkably improved in the rice–tortoise co‐culture system. Importantly, the quality of water and soil environments got better and better. As a result, the role of 'win–win' between rice and tortoises indicated that they were mutually beneficial. Interestingly, leisure and sightseeing tourism for the rice–tortoise co‐culture system had been widely welcomed. This study concluded that the efforts to unlock the co‐culture system potential for both rice and tortoises would significantly increase agricultural productivity, food security and even could contribute to the potential, healthy, ecological and sustainable agriculture. [ABSTRACT FROM AUTHOR]
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- 2022
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49. What is your diagnosis? Glossal imprint from a yellow‐footed tortoise (Chelonoidis denticulata).
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Miller, Bryce M., Ossiboff, Robert J., and Stacy, Nicole I.
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TESTUDINIDAE ,AUTOPSY ,HEMATOXYLIN & eosin staining ,PANCREAS - Abstract
Occasionally, within the nucleus of epithelial cells, there were one to two spherical, 5-10 µm diameter gametes with lightly basophilic cytoplasm and a small, slightly eccentric nucleus (Figure 4A). Furthermore, consistently acid-fast positive and variable PAS staining of TINC gametes in cytologic preparations might aid in the diagnosis of TINC in clinical cases and in decision-making regarding the pursuit of molecular diagnostics. Notice the presence of two gametes within one epithelial cell nucleus (arrowhead, A). [Extracted from the article]
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- 2022
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50. Of Mice, Whales, Jellyfish and Men: In Pursuit of Increased Longevity
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Guest, Paul C., COHEN, IRUN R., Editorial Board Member, LAJTHA, ABEL, Editorial Board Member, LAMBRIS, JOHN D., Editorial Board Member, PAOLETTI, RODOLFO, Editorial Board Member, REZAEI, NIMA, Editorial Board Member, and Guest, Paul C., editor
- Published
- 2019
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