| long-term occurrence of hemolivia cf. mauritanica (apicomplexa: adeleina: haemogregarinidae) in captive testudo marginata (reptilia: testudinidae): evidence for cyclic merogony? | blood smears from wild-caught, long-term captive tortoises, testudo marginata, revealed the presence of gametocytes of a hemolivia mauritanica-like hemogregarine in the erythrocytes of 72% tortoises examined. significant parasitemia was also found in animals living several years in captivity. experimentally infected tortoises showed no evidence of a decrease in parasitemia level more than 15 mo after infection. morphologically, stages found in tortoises' erythrocytes were indistinguishable from ... | 2004 | 15715234 |
| first records of hyalomma aegyptium (acari: ixodida: ixodidae) from the russian spur-thighed tortoise, testudo graeca nikolskii, with an analysis of tick population dynamics. | during the fall of 1995 and the spring of 1996, 77 statistically comparable tick collections, comprising 792 specimens, were made from adults of the russian spur-thighed tortoise, testudo graeca nikolskii, at 4 sites along russia's black sea coast. these are the first tick collections reported from t. g. nikolskii since its recognition as a taxonomic entity. all ticks were determined to be hyalomma (hyalomma) aegyptium, a common tortoise parasite in southern russia that in 1930 was erroneously d ... | 1998 | 9920339 |
| low tortoise abundances in pine forest plantations in forest-shrubland transition areas. | in the transition between mediterranean forest and the arid subtropical shrublands of the southeastern iberian peninsula, humans have transformed habitat since ancient times. understanding the role of the original mosaic landscapes in wildlife species and the effects of the current changes as pine forest plantations, performed even outside the forest ecological boundaries, are important conservation issues. we studied variation in the density of the endangered spur-thighed tortoise (testudo grae ... | 2017 | 28273135 |
| phylogenetic relationships among the species of the genus testudo (testudines: testudinidae) inferred from mitochondrial 12s rrna gene sequences. | to test phylogenetic relationships within the genus testudo (testudines: testudinidae), we have sequenced a fragment of the mitochondrial (mt) 12s rrna gene of 98 tortoise specimens belonging to the genera testudo, indotestudo, and geochelone. maximum likelihood and neighbor-joining methods identify two main clades of mediterranean tortoises, one composed of the species testudo graeca, testudo marginata, and testudo kleinmanni and a second of testudo hermanni, testudo horsfieldii, and indotestud ... | 2002 | 11820839 |
| comparative immunohistochemical study of the gastroenteropancreatic endocrine system of three reptiles. | the gastroenteropancreatic (gep) endocrine system of three reptiles, testudo graeca, mauremys caspica, and lacerta lepida, was investigated by means of immunocytochemistry. single and double immunostaining methods have demonstrated immunoreactivity for insulin, glucagon, pancreatic polypeptide (pp), somatostatin, serotonin, and peptide tyrosine tyrosine (pyy) in endocrine cells of the pancreas of the reptiles studied. islet-like structures with insulin-immunoreactive (ir) cells surrounded by glu ... | 1989 | 2574125 |
| ultrasonographic diagnosis of pericardial effusion and atrial dilation in a spur-thighed tortoise (testudo graeca). | ultrasonography was used to diagnose pericardial effusion, atrial dilatation and liver masses in a spur-thighed tortoise which was more than 80 years old and suffering from posthibernation anorexia, lethargy, oedema and pneumonia. the tortoise was treated twice with frusemide and ceftazidime for the pneumonia, resulting each time in a temporary remission for about a month. after a further recurrence, the animal was euthanased and the lesions predicted by ultrasound were confirmed postmortem. it ... | 2000 | 10718590 |
| chromaffin, small granule-containing and ganglion cells in the adrenal gland of reptiles: a comparative ultrastructural study. | chromaffin, small granule-containing (sgc)-cells, neurons and the innervation of these cells was studied in the adrenal gland of three species of reptiles (testudo graeca, lacerta dugesi, natrix natrix). 1. after fixation with glutaraldehyde and osmium-tetroxide adrenaline (a)- and noradrenaline (na)-storing cells can be distinguished by means of the different electron density of their granules: a-granules are moderately electron-dense, while na-granules show a core of high electron density. the ... | 1976 | 1260841 |
| the orbital glands of the chelonians pseudemys scripta and testudo graeca: comparative histological, histochemical and ultrastructural investigations. | the orbital glands of the chelonians pseudemys scripta and testudo graeca were investigated at the histological, histochemical and ultrastructural levels. four acinar cell types were seen in the harderian gland of p. scripta on the basis of histochemical reactions and ultrastructure. secretory granules were of 2 types, one showing moderate electron density with an electronlucent core, the other being smaller and more osmiophilic with an electron-dense core. in the harderian gland of t. graeca on ... | 1992 | 1452463 |
| comparative ultrastructural analysis of two tortoise bladders, testudo graeca and geochelone carbonaria. | urinary bladders from the desert tortoises, testudo graeca and geochelone carbonaria were removed at specific times during the year and species in all bladders examined: (1) granular cells, (2) mitochondria-rich cells, and (3) basal cells. cells analogous to these three types have also been observed in amphibian bladders (from toad bufo marinus and bullfrog, rana catesbiana) and reptilian bladders (from pseudemys scripta and clemmys caspica). both tortoises have an incomplete layer of basal cell ... | 1976 | 1252017 |
| plasma concentrations of 25-hydroxycholecalciferol in 22 captive tortoises (testudo species). | the plasma concentration of 25-hydroxycholecalciferol was measured in 13 adult hermann's tortoises (testudo hermanni), seven adult spur-thighed tortoises (testudo graeca) and two adult marginated tortoises (testudo marginata) during 2004. they were healthy, of both sexes, and kept in captivity under natural unfiltered sunlight in southern england with no dietary sources of cholecalciferol. blood samples were taken in march, june and august, and the concentration of 25-hydroxycholecalciferol did ... | 2008 | 18344499 |
| lower urinary tract obstruction in a mediterranean spur-thighed tortoise (testudo graeca) with coxofemoral arthritis. | | 2006 | 17028253 |
| reproductive traits in the spur-thighed tortoise (testudo graeca terrestris): new tools for the enhancement of reproductive success and survivorship. | the mediterranean tortoise (testudo graeca) is listed as "vulnerable" on the iucn red list. reproductive characteristics and means to increase offspring production were studied in t. graeca terrestris in a semi-natural environment. courtship and mating occurred during early spring for about 4 weeks, followed by a laying season of approximately 2 months, with a second, shorter mating period in the fall. during the first mating, calcified eggs were already present in the uterus; we inferred that s ... | 2004 | 15037002 |
| redescription of four species of mehdiella from testudinidae, with a key to the species and discussion on the relationships among the species of this genus. | four species of the genus mehdiella seurat, 1918 are redescribed: m. cristata petter, 1966 and m. stylosa dollfusi petter, 1966, parasite of pyxix arachnoides bell, 1827 from madagascar, m. s. stylosa (thapar, 1925) and m. uncinata (drasche, 1884), parasite of testudo graeca linneaus, 1758, testudo hermanni gmelin, 1789 and testudo horsfieldii (gray, 1844) from palaearctic region. light microscopy and scanning electron microscopy (sem) studies revealed new informations on the morphology of these ... | 2003 | 14710630 |
| diagnosis and surgical repair of stifle luxation in a spur-thighed tortoise (testudo graeca). | this report describes stifle luxation resultant from multiple ligamentous injuries in a spur-thighed tortoise (testudo graeca). despite an absence of obvious trauma in the case history, the tortoise presented with acute, unilateral hind limb lameness. diagnosis of stifle luxation was based on cranial drawer motion, increased rotational joint instability. and radiographic findings. joint stabilization was accomplished by a combination of cranial cruciate reconstruction using an autograft of later ... | 2002 | 12398301 |
| imaging diagnosis--seminoma causing liver compression in a spur-thighed tortoise (testudo graeca). | a 13-year-old male spur-thighed tortoise (testudo graeca) was presented with anorexia, apathy, and prolapse of penile tissue. ultrasonography revealed a large heterogeneous mass in the coelomic cavity, and fine-needle aspiration demonstrated sperm. magnetic resonance imaging showed a sharply defined mass originating from the left testis. appearance and signal intensities were similar to those reported in testicular neoplasms in humans, in particular sharing similarities with seminomas. necropsy ... | 2016 | 24506145 |
| use of carbenicillin in two species of tortoise (testudo graeca and t hermanni). | a preliminary investigation of the blood levels of carbenicillin, after the administration of a single intramuscular injection, suggests that the tortoise's bladder may act as a reservoir of antibiotic that is available for resorption. this phenomenon could confound the establishment of a safe, effective dose regime for antibiotics, in tortoises, which are excreted in an unchanged active form in urine. | 1986 | 3738240 |
| ultrastructure of the renal corpuscle of testudo graeca (chelonia). a comparison between hibernating and non-hibernating animals. | the renal corpuscle of hibernating and non-hibernating testudo graeca was studied by means of light and electron microscopy. renal corpuscles are small and have a glomerular architecture similar to that found in other vertebrates with a limited glomerular filtration rate. in hibernating animals, unlike non-hibernating, some morphological changes took place. the cells of the renal corpuscle were densely packed, podocytes and parietal cells showed a marked cytoplasmic vacuolization, there was a hi ... | 1986 | 2980109 |
| seasonal variations in haematological data from mediterranean tortoises (testudo graeca and testudo hermanni) in captivity. | reference values for a variety of haematological parameters in 18 mediterranean tortoises of two species (testudo graeca and testudo hermanni) were determined on six occasions during the year. statistically significant seasonal variations were demonstrated in all parameters. | 1986 | 3704341 |
| mitochondrial dna haplotyping of testudo graeca on both continental sides of the straits of gibraltar. | testudo graeca is an endangered species of tortoise that inhabits mediterranean areas of africa, asia, and europe. western populations are found on both sides of the straits of gibraltar. the effects of geographical isolation on genetic divergence were assessed by the sequence analysis of two mitochondrial dna regions of the 12s rrna and cytochrome b genes. four different haplotypes were identified. a single haplotype was shared by all spanish and some east moroccan specimens. two haplotypes wer ... | 2006 | 10739123 |
| a microscopic study of the lung of testudo graeca (chelonia). | the lung of the tortoise, testudo graeca (chelonia) was studied by means of light and electron microscopy, histochemistry and immunocytochemistry. the lung showed the typical faviform structure of the reptilian lung. three orders of trabeculae were observed. the epithelium of primary and secondary trabeculae was composed of ciliated, mucous, basal and endocrine cells. mucous cells contained sialo- and sulpho-mucins and were reactive to the lectins con-a, wga, dba, pna and sba. endocrine cells we ... | 1989 | 2606791 |
| human-mediated secondary contact of two tortoise lineages results in sex-biased introgression. | human-mediated secondary contact of recently diverged taxa offers valuable opportunities for studying the evolutionary mechanisms involved in the establishment and maintenance of genetic boundaries between taxa. we used mitochondrial and microsatellite markers to examine a recently introduced population of the spur-thighed tortoise (testudo graeca) of mixed origin in the doñana national park (sw spain). the earliest records of tortoises in doñana trace back to the 18th century, but several popul ... | 2017 | 28642457 |
| hyperplastic stomatitis and esophagitis in a tortoise (testudo graeca) associated with an adenovirus infection. | a 2-year-old female, spur-thighed tortoise (testudo graeca) was presented with poor body condition (1/5) and weakness. fecal analysis revealed large numbers of oxyurid-like eggs, and radiographs were compatible with gastrointestinal obstruction. despite supportive medical treatment, the animal died. at gross examination, an intestinal obstruction was confirmed. histopathology revealed severe hyperplastic esophagitis and stomatitis with marked epithelial cytomegaly and enormous basophilic intranu ... | 2016 | 27486139 |
| development of a consensus reverse transcription pcr assay for the specific detection of tortoise picornaviruses. | picornaviruses (pvs) of different terrestrial tortoise species, previously designated as virus "x," have been frequently detected from various tissues by virus isolation in terrapene heart cell culture as the preferred laboratory method for diagnosis. here, we describe the development of 2 diagnostic reverse transcription (rt)-pcr-based assays for the identification and characterization of tortoise pvs belonging to the tentative genus topivirus to test the novel diagnostic systems, pvs were isol ... | 2016 | 27034342 |
| wildlife dna forensics against crime: resolution of a case of tortoise theft. | a paternity test was used to investigate a robbery case involving captive individuals of greek tortoise (testudo graeca). six tortoises were allegedly stolen from a private breeder and offered for sale on the web by the supposed thief. the stolen tortoises were confiscated by the rangers of the state forestry corps (cfs). a panel of 14 autosomal microsatellite loci was used to genotype the seized tortoises and ten individuals assumed to be legally owned by the breeder. kinship analyses reliably ... | 2014 | 24315609 |
| gastrointestinal parasitic burdens in uk tortoises: a survey of tortoise owners and potential risk factors. | despite gastrointestinal parasites being commonly diagnosed in captive tortoises throughout the uk, there is a lack of data regarding the prevalence. the aims of this study were to investigate the prevalence of gastrointestinal parasites in tortoises in the uk, and to investigate the factors affecting the prevalence of these parasites. owners were invited to submit a faecal sample from their tortoise in conjunction with a completed questionnaire covering details of signalment and husbandry. data ... | 2013 | 24158320 |
| the use of negative pressure wound therapy following subcarapacial abscess excision in a tortoise. | a 42-year-old female testudo graeca was referred with a five-month history of a non-healing carapacial wound. previous treatment had involved long-term antibiotic therapy and conscious debridement of necrotic tissue. on presentation an extensive deep wound with purulent discharge was visible on the right side of the carapace. a computed tomographic scan was performed to assess the extent of the wound. this revealed a large carapacial deficit with two underlying soft tissue masses. surgical debri ... | 2013 | 23889043 |
| surfing in tortoises? empirical signs of genetic structuring owing to range expansion. | much of our current knowledge about the genetic dynamics in range expansions originates from models, simulations and microcosm experiments that need to be corroborated by field data. here, we report a neutral genetic pattern that matches the predictions of the genetic surfing theory. genetic surfing occurs when repeated founding events and genetic drift act on the wave of advance of an expanding population, promoting strong spatial structure. in the range expansion of the tortoise testudo graeca ... | 2013 | 23554278 |
| physical reparative treatment in reptiles. | the tissue growth necessary to achieve a complete or partial restitution ad integrum as a result of injury to soft tissue and/or hard times in reptiles is variable and often needs long time in relation to the species, to the habitat and to their intrinsic physiological characteristics. the purpose of this work was to see if the tissue optimization (to) treatment with radio electric asymmetric conveyer (reac) provided good results in these animals and whether its use translates into reduced time ... | 2013 | 23442770 |
| multiple congenital malformations in a dicephalic spur-thighed tortoise (testudo graeca ibera). | a 22-day-old dicephalic spur-thighed tortoise (testudo graeca ibera) died following a history of lethargy, anorexia and absence of defecation. the two heads were anatomically similar with independent reaction to external stimuli. the carapace showed doubled first and extra second vertebral scutes. radiography and transplastronal ultrasonography, performed when the animal was alive, revealed two symmetrical stomachs and two asynchronous hearts. these findings were confirmed by necropsy examinatio ... | 2013 | 23352900 |
| variation in growth and potentially associated health status in hermann's and spur-thighed tortoise (testudo hermanni and testudo graeca). | captive reptiles often show higher growth rates than in the wild, possibly due to higher feeding intensity. although health problems are usually linked to inappropriate diets, fast growth itself, such as triggered by appropriate diets fed in high amounts, has traditionally also been considered unfavorable for tortoises. we document growth rates (based on age and mass) from private testudo hermanni and t. graeca breeders, which are generally higher than those reported for free-ranging specimens, ... | 2012 | 22290654 |
| herbivorous reptiles and body mass: effects on food intake, digesta retention, digestibility and gut capacity, and a comparison with mammals. | differences in the allometric scaling between gut capacity (with body mass, bm¹·⁰⁰) and food intake (with bm⁰·⁷⁵) should theoretically result in a scaling of digesta retention time with bm⁰·²⁵ and therefore a higher digestive efficiency in larger herbivores. this concept is an important part of the so-called 'jarman-bell principle' (jbp) that explains niche differentiation along a body size gradient in terms of digestive physiology. empirical data in herbivorous mammals, however, do not confirm ... | 2011 | 20850560 |
| ultrastructural study of the endocrine cells of the gut of testudo graeca (chelonia). | the digestive tract of testudo graeca (chelonia) was investigated by means of electron microscopy using both conventional and immunocytochemical techniques. ec-, l-, d-, g-, b-, n- and ec-l-cells were detected. these cells share several common ultrastructural characteristics with the endocrine cells of mammals (i.e. clear cytoplasm, prominent golgi apparatus, secretory granules etc.). ec and d1 cells have so far not been described in the esophagus of any animal species; in the present study thes ... | 1989 | 2571311 |
| calcium and phosphorus values and their derivatives in captive tortoises (testudo species). | to evaluate the relationships between total calcium and phosphorus and ionised calcium and phosphorus values in clinically healthy tortoises. | 2010 | 20630020 |
| does testosterone influence activity budget in the male greek tortoise (testudo graeca graeca)? | the stimulatory effect of testosterone on male sexual activity is one of the clearest examples linking hormones and behaviors. however, this relationship is complex in chelonians. we experimentally studied the influence of testosterone levels on the activity budget and space use in male greek tortoises (testudo graeca graeca) during the spring mating season. we first described the annual pattern of changes in plasma testosterone levels in free-ranging animals in morocco. two peaks, one in winter ... | 2010 | 20226191 |
| variations in the concentration of ionised calcium in the plasma of captive tortoises (testudo species). | the concentration of ionised calcium was measured in the plasma of 13 hermann's tortoises (testudo hermanni boettgeri), nine spur-thighed tortoises (testudo graeca ibera), two marginated tortoises (testudo marginata) and six horsfield's tortoises (testudo horsfieldi) maintained under natural unfiltered sunlight in the uk. the numbers were too small to analyse the differences between the species, sexes or the time of the year statistically, but the concentrations of ionised calcium were generally ... | 2009 | 19617613 |
| evaluation of local ecological knowledge as a method for collecting extensive data on animal abundance. | the use of local ecological knowledge (lek) has been advocated for biodiversity monitoring and management. to date, however, it has been underused in studying wild populations of animals and, particularly, in obtaining quantitative abundance estimates. we evaluated lek as a tool for collecting extensive data on local animal abundance and population trends. we interviewed shepherds in southeastern spain, asking them to estimate the local abundance of the terrestrial tortoise testudo graeca. we qu ... | 2009 | 19183211 |
| seasonal variation in blood biochemistry of long-term captive mediterranean tortoises (testudo graeca and t hermanni). | reference values for five blood chemistry parameters in 18 mediterranean tortoises of two species, testudo graeca and t hermanni, were determined on up to 10 occasions during the year. statistically significant seasonal variations were demonstrated in blood urea and blood glucose. seasonal variations were demonstrated in blood urea and blood glucose. seasonal variations in total plasma proteins, lipids and cholesterol, however, were limited to gravid females. the study also suggested that three ... | 1987 | 3444983 |
| endocrine pancreas of testudo graeca l. (chelonia) in summer and winter: an immunocytochemical and ultrastructural study. | insulin-, glucagon-, somatostatin-, and pp-immunoreactive cells were identified immunocytochemically using antisera raised against mammalian hormones in the pancreas of testudo graeca in both winter and summer. the endocrine cells were present throughout the gland, forming scarce islets except in the splenic region. the insulin cell islets were larger and more numerous in the splenic region than in the duodenal one. winter glucagon-immunoreactive cells were found mainly in isolation while the su ... | 1987 | 2892755 |
| ultrastructure of the tubular nephron of testudo graeca (chelonia). a comparison between hibernating and non-hibernating animals. | the tubular nephron of hibernating and non-hibernating specimens of testudo graeca (chelonia) was studied by means of conventional light and electron microscopy and histochemistry. the tubular nephron was composed of proximal, intermediate, distal and collecting tubules in both hibernating and non-hibernating animals. the cells of the proximal tubule showed long microvilli, cytoplasmic vacuoles, a developed endoplasmic reticulum and abundant mitochondria. fat droplets were also observed. the int ... | 1987 | 2980742 |
| a microscopic study of the tracheal epithelium of testudo graeca and pseudemys scripta elegans. | the tracheal epithelium of testudo graeca and pseudemys scripta elegans was studied by means of light and electron microscopy, histochemistry and immunocytochemistry. three cell types were detected by conventional light microscopy: mucous, ciliated and basal. the grimelius silver argyrophil technique was positive in a population of tracheal cells. by immunocytochemistry, serotonin-containing cells were identified. the mucous cells of testudo graeca contained sialomucins and sulphomucins; however ... | 1987 | 3429317 |
| post hibernational anorexia in captive mediterranean tortoises (testudo graeca and thermanni). | post hibernational anorexia in captive mediterranean tortoises is an increasingly recognised condition. it is associated with increased blood urea and low blood glucose concentrations and dehydration. a theory to explain its underlying physiology is presented, based on studies of the seasonal and cyclic variations in the tortoises' blood composition. measurements useful for predicting the condition are identified and a logical approach to therapy is proposed. | 1987 | 3469810 |
| a light microscopy and ultrastructural study of the testes of tortoise testudo graeca (testudinidae). | adult males of testudo graeca were used to preliminarily study the light microscopic morphology and the ultrastructure of the testes. spermiogenesis has shown the presence of some interspecific variations among chelonia, while the general features of the testes and spermatocytes are morphologically similar to other reptilians. the male reproductive state observed in the months analysed has shown spermatogenesis recrudescence in spring, a complete germinal series in autumn and testicular regressi ... | 1999 | 10457608 |
| [changes in the retinotectal system of the tortoise testudo graeca following enucleation]. | electrophysiological and electron microscopic studies have been made on degeneration in the optic nerve and midbrain tectum after enucleation of the tortoise t. graeca. it was found that intensive degeneration of terminals which follows "dark" type (1/2--1 month after enucleation) corresponds to degeneration of myelinated fibers. mass degeneration of the "light" type is associated with degeneration of unmyelinated fibers, being observed 1 1/2--2 months after the enucleation. the main bulk of fib ... | 2007 | 716710 |
| influence of intermittent breathing on ventricular depolarization patterns in chelonian reptiles. | 1. alterations between two quite distinct patterns of epicardial depolarization are associated with the normal occurrence of intermittent lung ventilation in both lightly anaesthetized and unrestrained, conscious turtles (pseudemys scripta) and tortoises (testudo graeca). 2. during apnoea depolarization sweeps from the left to the right over the ventricular surface at a conduction velocity of 0.15 m/sec. with the onset of lung ventilation the direction of depolarization propagation over the vent ... | 1978 | 671311 |
| [kinetic study of cholinesterases of the testudo graeca heart]. | | 2014 | 5488485 |
| [on an anomaly of genital canals observed in greek tortoise (testudo graeca l.) embryos treated by estradiol benzoate]. | | 1969 | 4975498 |
| [edta action on the electrocardiogram of testudo graeca]. | | 1969 | 4997163 |
| sensory nerve endings in the joint capsules of the tortoise (testudo graeca). | | 1968 | 5639059 |
| the basal ganglia of testudo graeca. | | 1967 | 5582296 |
| the mechanism of lung ventilation in the tortoise testudo graeca linné. | | 1967 | 6058978 |
| [on the character of the fecal arizona carriers in land turtles testudo graeca and testudo hermanni]. | | 1966 | 5991751 |
| [ecological and functional significance of protein membrane of the egg in the embryogenesis of tortoise testudo graeca]. | | 2008 | 5896293 |
| [amino acid structure of the protein membrane of the egg of the turtle testudo graeca]. | | 2007 | 14267171 |
| [on the fixation of i-125-triiodothyronine in the kidney of testudo graeca l. (histoautoradiographic study)]. | | 1964 | 14335335 |
| [redescription and critical analysis of some oxyurid species of the greek tortoise (testudo graeca l.). diversity of the cephalic structures. ii]. | | 2006 | 14486021 |
| [redescription and critical analysis of some species of oxyurids of the greek tortoise (testudo graeca l.); diversity of the cephalic structures]. | | 2006 | 14486022 |
| [a particular type of experimental infection in the turtle (testudo graeca and testudo mauritanica)]. | | 1960 | 13801287 |
| [light & electron microscopic study of the renal corpuscle of the greek land turtle (testudo graeca l.)]. | | 1958 | 13558495 |
| properties of blood oxygen transport in the turtle pseudemys scripta and the tortoise testudo graeca: effects of temperature, co2 and ph. | properties of oxygen-haemoglobin binding have been investigated in the aquatic turtle psuedemys scripta and the terrestrial tortoise testudo graeca. haematocrit (30-35%) and haemoglobin concentration (12-14 g/100 ml blood) were similar in both species. p50 at physiological levels of pco2 (20-25 mm hg) was 21 mm hg in pseudemys, compared with 23 mm hg in testudo. the bohr shift of the blood of both the turtle and the tortoise was almost identical at -0.28. the heat of oxygenation, deltah, reflect ... | 1977 | 21433 |
| model of exchange barrier and respiratory surface area in the lung of the tortoise (testudo graeca) and its practical application. | | 1976 | 1018736 |
| evidence of haplodiploidy in pharyngodonid (nematoda: oxyuroidea) parasites of testudo graeca. | | 1982 | 7125498 |
| experimental analysis of the gait and frequency of locomotion in the tortoise, with a simple mathematical description. | 1. voluntary locomotion of the tortoise testudo graeca was investigated over a range of experimental conditions. 2. the swing and stance intervals of the step cycles of individual limbs and the interlimb intervals were shown to depend only upon the locomotor cycle duration independent of experimental conditions. 3. the gait is described by four simple equations, valid for all animals and conditions tested, with locomotor cycle duration as the only independent variable. 4. the observed frequency ... | 1981 | 7230037 |
| hormonal control of osmoregulation in the chelonia. ii. the effect of prolactin and corticosterone on testudo graeca. | | 1980 | 7439670 |
| weight and measurement data on tortoises (testudo graeca and testudo hermanni) and their relationship to health. | | 1980 | 7431890 |
| alanine influx across serosal border of testudo graeca intestine. | the influx of alanine across the serosal membrane of testudo graeca intestinal cells with preserved epithelial orientation was examined. our results suggest that: 1. the mechanism of alanine influx across the serosal membrane of turtle intesintal cells is a carrier-mediated process that has the characteristics of facilitated diffusion. 2. alanine influx mechanism is independent of intra- and extra-cellular changes in na+ and k+ concentrations, and is not altered by reversal of na+ and k+ gradien ... | 1980 | 7349874 |
| inhibitory interlimb interactions during locomotion in testudo graeca [proceedings]. | | 1979 | 490350 |
| [morphofunctional characteristics of the optic nerve of the turtle testudo graeca]. | electron microscopic investigation indicates that in t. graeca the optic nerve consists of about 216,000 fibers of which 11% are myelinated and 89%--unmyelinated ones. the diameter of myelinated fibers varies within 0.2-2.5 mu, the main bulk of fibers (42%) having the diameter 0.5-0.7 mu. the diameter of unmyelinated fibers varies between 0.1 and 0.35 mu. with respect to their diameter, 8% of the fibers of both groups overlap each other. during electrical stimulation of the optic nerve, action p ... | 2006 | 473993 |
| correlation of the microgram and macrogram of the penicillin focus in the cerebral cortex of the turtle (testudo graeca). electrographic types of unit activity. | | 1979 | 155836 |
| identification of tick-borne pathogens in ticks collected from wild animals in turkey. | many enzootic life cycles involving wild animals and non-nidicolous ixodids are still unknown. therefore, the aim of this study was to report the identified tick species collected from seven different animal species (red deer, brown bear, gray wolf, eurasian lynx, red fox, european hare, and mediterranean spur-thighed tortoise) living in the wild in turkey and to investigate the presence of a wide range of tick-borne microorganisms in the tick samples obtained from these animals. the collected t ... | 2020 | 32683558 |
| theta (rsa) activity in the brain of the turtle. | the existence of a synchronizing system generating theta (rsa) activity of an average frequency of 4 hz has been demonstrated in the brain of the turtle testudo graeca. three brain structures probably participate in the activity--the septum, amygdala and hippocampus. the septal region seems to play a leading role in this complex--lesions in this region abolished the generation of theta activity in 71% of experiments. this synchronizing system is functionally coupled with the olfactory generator ... | 1979 | 155827 |
| [comparative analysis of the neuronal and synaptic organization of the mesencephalic visual center of greek and steppe turtles]. | the stratification, neuronal structure and synaptic organization of tectum opticum have been studied in two species of tortoises (testudo graeca and testudo horsfieldi, gray) by means of golgi methods and electron microscopy. the midbrain tectum in these closely related animals has some common properties, but at the same time it possesses certain species specific features. their properties in common appear to be connected with the common ecology and closely systematic place of testudo graeca and ... | 1978 | 742983 |
| radiological studies of the alimentary tract in two greek tortoises (testudo graeca). | barium sulphate was administered to two tortoises (testudo graeca). gastric emptying was not completed until 23 and 80 hours after barium administration and complete passage of barium through the gastrointestinal tract took 25 and 28 days. the consequences of these findings are discussed with reference to artificial feeding and medication regimes in chelonians. | 1978 | 706117 |
| the structure, distribution and innervation of spindles in the extensor digitorum brevis i muscle of the tortoise testudo graeca. | | 1970 | 4246489 |
| [cellular degeneration in the apical crest of the limb bud of the moorish turtle (testudo graeca l., chelonian)]. | intracytoplasmic degeneration bodies are present early in the cells of the apical ridge of the limbbud in embryos of testudo graeca; next, they are obvious in the apical fold till formation of the analgen of the fingers. this cell death may be responsible for a certain rudimentation of the limb (reduction of length of phalanges) in this species of turtle. | 1976 | 821648 |
| stomatitis in the greek tortoise (testudo graeca). | | 1976 | 1265999 |
| cytogenetic investigation of cells from primary kidney culture of testudo graeca. | | 1976 | 1024811 |
| a quantitative analysis of ventilation tachycardia and its control in two chelonians, pseudemys scripta and testudo graeca. | 1. in both the turtle, pseudemys scripta, and the tortoise, testudo graeca, lung ventilation is closely accompanied by a tachycardia of predictable magnitude and duration. 2. efferent vagal activity progressively decreases as heart rate increases with the onset of lung ventilation. atropine decreases heart rate during apnoea to those levels observed during prolonged breathing series when the development, duration or magnitude of ventilation tachycardia. it is thus concluded that heart rate chang ... | 1975 | 1202129 |
| effects of pge1 on the arterial blood pressure of turtle (testudo graeca) and pge1-catecholamine interactions on this system. | | 1975 | 1208190 |
| contractile filamentous structures in sertoli cells of the greek tortoise (testudo graeca)? | | 1974 | 4856822 |
| epileptic focus in the forebrain of the turtle (testudo graeca). triggering of focal discharges with different sensory stimuli. | | 1971 | 4330174 |
| haplodiploidy in pharyngodonid (oxyuroidea: nematoda) parasites of testudo graeca. | gametogenesis is described in tachygonetria conica, t. dentata, t. macrolaimus, t. numidica, t. longicollis longicollis, t. l. pusilla, t. l. setosa, mehdiella uncinata and m. microstoma, parasites of testudo graeca from tunisia. all species reproduced by haplodiploidy (males developed from unfertilized eggs and were haploid and females developed from fertilized eggs and were diploid). metaphase of oogonial divisions contained ten rod-shaped chromosomes and meiosis in females resulted in two pol ... | 1983 | 6614746 |
| [the fine structure of the lymphatic vessels of the urinary bladder of small chelonia (testudo graeca and emys europea)]. | the fine structure of lymphatic vessels in the subepithelial, intramuscular and subserosal layers of the bladder of small chelonia (testudo graeca and emys europaea) have been investigated during the winter and summer seasons. the vessels are made up of flat endothelial cells, which abluminal surface is encircled by a thick layer of connective fibrils. peripheral cytoplasmatic processes of adjacent endothelial cells are connected by specialized junctional complexes (zonulae adhaerentes and occlu ... | 1983 | 6225282 |
| chloride transport across the isolated intestinal mucosa of testudo graeca. | | 1970 | 5515608 |
| [electrocardiographical variations in the heart of the testudo graeca caused by administration of lactic acid]. | | 1954 | 13232380 |
| [absence of uricase in the testudo graeca liver]. | | 2006 | 14934486 |
| [further research on the double uricotelic and ureotelic properties of nitrogen metabolism in the testudo graeca]. | | 2013 | 14934485 |
| [examination of the ependyma of mesencephalon and diencephalon of the turtle (testudo graeca)]. | | 1957 | 13531623 |
| an experimental study of the secondary olfactory connexions in testudo graeca. | | 1956 | 13295149 |
| [muscle and fascia of floor of the mouth in testudo graeca]. | | 1955 | 13238860 |
| ticks parasitizing the spur-thighed tortoise (testudo graeca) population of tunisia. | from march to april 2017, a total of 147 free-ranging spur-thighed tortoises (testudo graeca) was captured in different habitat types of northern tunisia and examined for tick infestation. a total of 134 was infested, yielding an infestation prevalence of 91.2%. from these tortoises, 1,174 ticks were collected, a subsample (10%, n=120) of which was randomly selected and identified; the remaining ticks were stored at -80 c and examined for zoonotic pathogens. only adult hyalomma aegyptium were fo ... | 2020 | 32402236 |
| bacterial and protozoan agents found in hyalomma aegyptium (l., 1758) (ixodida: ixodidae) collected from testudo graeca l., 1758 (reptilia: testudines) in corum province of turkey. | hyalomma aegyptium (l., 1758) (ixodida: ixodidae) is a hard tick and the main host for adults are palearctic tortoises of the genus testudo, while larvae and nymphs are less host-specific and nymphs also attach to humans. in the present study, a total of 261 h. aegyptium ticks were removed from 26 testudo graeca l., 1758 in corum province of turkey. the most prevalent pathogens identified molecularly in the ticks were hemolivia mauritanica (51.9 %), followed by rickettsia aeschlimannii (32.6 %), ... | 2020 | 32389537 |
| occurrence and diversity of campylobacter species in captive chelonians. | the aim of this study was to investigate the occurrence and diversity of campylobacter species in chelonians. from july 2016 to september 2017, a total of 452 individuals from a large variety of tortoises (n = 366) and turtles/terrapins (n = 86) kept in private collections and breeding centres, wildlife rescue centres, zoos, pet shops, and veterinary clinics from northern italy was sampled and subjected to microbiological examination. campylobacter genus and species confirmation was performed by ... | 2020 | 31928704 |
| pathogenic rickettsia in ticks of spur-thighed tortoise (testudo graeca) sold in a qatar live animal market. | the dissemination of vector arthropods harbouring zoonotic pathogens through the uncontrolled transboundary trade of exotic and pet animals poses an important threat to public health. in the present report, we describe the introduction of pathogenic rickettsia africae and r. aeschlimanni in ticks removed from imported tortoises in qatar. a total of 21 ticks were collected from pet spur-thighed tortoises (testudo graeca) from doha, may 2018, and studied for species identification and characteriza ... | 2020 | 31574580 |
| intranuclear coccidiosis in tortoises - discovery of its causative agent and transmission. | intranuclear coccidiosis of testudines (known as tinc) is an emerging disease in chelonians. although endogenous stages were repeatedly detected in various tissues, attempts to find the oocysts in faeces failed, leaving the question of the transmission and classification of the causative agent of tinc unresolved. we recorded small spherical oocysts (∼6-7 μm in diameter) of an eimeriid coccidium in faeces of a leopard tortoise (stigmochelys pardalis). sporulated oocysts were used for the experime ... | 2019 | 30481662 |
| investigations on the prevalence of tortoise picorna-virus in captive tortoises in germany. | tortoise picornavirus (topv) has been speculated to play an important role in the frequently seen disease pattern of juvenile shell softening. this study aimed to determine topv prevalence among german tortoise collections. | 2018 | 30541170 |
| predation of young tortoises by ravens: the effect of habitat structure on tortoise detectability and abundance. | the predation of young tortoise is considered a major cause of mortality for many tortoise species. the predation by common ravens has been identified as being responsible for significant decreases in tortoise populations. mediterranean spur-thighed tortoise hatchlings and juveniles in maamora forest (morocco) were studied in order to describe the size/age class predation of common ravens on young tortoises and infer the drivers of predation risk and population abundance. the results showed a hi ... | 2020 | 32024887 |
| absence of hemolivia mauritanica (apicomplexa: haemogregarinidae) in natural populations of testudo graeca in morocco. | during spring 2018, we captured 101 spur-thighed tortoises, testudo graeca, from seven localities in central morocco. all tortoises were examined for the presence of blood parasites hemolivia mauritanica and hyalomma aegyptium ticks, the known vectors. we looked for h. mauritanica infection by examination of blood smears and by genetic analysis with pcr using extractions from both tortoises and ticks. on all tortoises collected, 71.29% were infested with at least one tick, with a mean infestatio ... | 2020 | 32870404 |
| a case of angusticaecum holopterum (rudolphi, 1819) in a turtle (testudo graeca) | seven nematodes collected from a crushed turtle were brought to selçuk university faculty of veterinary parasitology department. a few of them were transparented in lactophenol approximately for three weeks. after the parasites were cleared, their head regions were examined microscopically in apical and lateral positions. the posterior ends of the samples were also examined to separate male and females. according to the results of the microscopic examinations, it was found that five of seven par ... | 2020 | 32212598 |
| sperm storage reduces the strength of the mate-finding allee effect. | mate searching is a key component of sexual reproduction that can have important implications for population viability, especially for the mate-finding allee effect. interannual sperm storage by females may be an adaptation that potentially attenuates mate limitation, but the demographic consequences of this functional trait have not been studied. our goal is to assess the effect of female sperm storage durability on the strength of the mate-finding allee effect and the viability of populations ... | 2020 | 32128127 |
| detection of a novel chlamydia species in captive spur-thighed tortoises (testudo graeca) in southeastern spain and proposal of candidatus chlamydia testudinis. | the spur-thighed tortoise (testudo graeca) is an endangered mediterranean tortoise that lives in north africa, southern europe and southwest asia. in the wake of recent legislation making their keeping as domestic animals illegal, many of these animals have been returned to wildlife recovery centers in spain. in the present study, a population of such tortoises showing signs of ocular disease and nasal discharge was examined for the presence of chlamydia spp. cloacal, conjunctival and/or choanal ... | 2020 | 32085936 |