| health survey of wild and captive bog turtles (clemmys muhlenbergii) in north carolina and virginia. | blood samples, fecal samples, and cloacal swabs were collected from 42 bog turtles (clemmys muhlenbergii). including 14 wild males, 22 wild females, three captive males, and three captive females, in virginia and north carolina, usa. samples were analyzed for hematologic and plasma chemistry values, mycoplasma sp. antibodies, intestinal parasites, and normal cloacal flora. | 2002 | 12564526 |
| a mycoplasma species of emydidae turtles in the northeastern usa. | mycoplasma infections can cause significant morbidity and mortality in captive and wild chelonians. as part of a health assessment of endangered bog turtles (glyptemys muhlenbergii) in the northeastern us, choanal and cloacal swabs from these and other sympatric species, including spotted turtles (clemmys guttata), eastern box turtles (terrapene carolina carolina), wood turtles (glyptemys insculpta), and common snapping turtles (chelydra serpentina) from 10 sampling sites in the states (us) of d ... | 2015 | 25574806 |
| molecular phylogenetics of emydine turtles: taxonomic revision and the evolution of shell kinesis. | the 10 extant species of emydine turtles represent an array of morphological and ecological forms recognizable and popular among scientists and hobbyists. nevertheless, the phylogenetic affinities of most emydines remain contentious. here, we examine the evolutionary relationships of emydine turtles using 2092 bp of dna encoding the mitochondrial genes cyt b, nd4, and adjacent trnas. these data contain 339 parsimony informative characters that we use to erect hypotheses of relationships for the ... | 2002 | 11884163 |
| responses to visual stimuli in thalamic neurons of the turtle emys orbicularis. | the responses to movement of shaped stimuli and diffuse illumination were studied for 300 neurons in three thalamic regions of the bog turtle emys orbicularis l.' characteristics of their receptive fields (rf) were also studied. according to their responses to stimuli of various sizes, neurons were divided into two types. neurons of type i (85%) were activated by stimuli of any size and has large, small or medium rf. weak or medium adaptive changes were found more often (63%) than strong changes ... | 2007 | 7393444 |
| [action potentials of the fast and slow muscle fibers of the bog turtle emys orbicularis]. | in skeletal muscles of the tortoise e. orbicularis, fast and slow muscle fibers were found which differ in the lipid content and electrophysiological properties. fast fibers contain small amounts of lipid inclusions. in response to direct electrical stimulation they produce fast action potentials (ap) which are capable of rhythmic activity during prolonged depolarization. slow fibers are rich in lipid inclusions. their ap differs from that of fast fibers by slow onset, and decay, lower gradient ... | 2006 | 899399 |
| [comparative characteristics of the dendritic spines of the 3 chief zones of the forebrain cortex of steppe and bog turtles]. | a comparative study of dendritic spines in the principal cortical regions of the forebrain was performed for two turtle species by the golgi and electron-microscopy methods. common features of spines were revealed for every cortical region of both turtle species. distribution peculiarities in the proximal, middle and distal sections of the spines, as well as their density, shape, length and ultrastructure were taken into account. apart from similar features for two turtle species, there are some ... | 1977 | 859669 |
| [ultrastructure of functionally different skeletal muscle fibers of the bog turtle emys orbicularis]. | | 1973 | 4362315 |
| three novel herpesviruses of endangered clemmys and glyptemys turtles. | the rich diversity of the world's reptiles is at risk due to significant population declines of broad taxonomic and geographic scope. significant factors attributed to these declines include habitat loss, pollution, unsustainable collection and infectious disease. to investigate the presence and significance of a potential pathogen on populations of critically endangered bog turtles (glyptemys muhlenbergii) as well sympatric endangered wood (g. insculpta) and endangered spotted (clemmys guttata) ... | 2015 | 25875510 |
| reexamining the minimum viable population concept for long-lived species. | for decades conservation biologists have proposed general rules of thumb for minimum viable population size (mvp); typically, they range from hundreds to thousands of individuals. these rules have shifted conservation resources away from small and fragmented populations. we examined whether iteroparous, long-lived species might constitute an exception to general mvp guidelines. on the basis of results from a 10-year capture-recapture study in eastern new york (u.s.a.), we developed a comprehensi ... | 2013 | 23458501 |
| application of thin-plate spline transformations to finite element models, or, how to turn a bog turtle into a spotted turtle to analyze both. | finite element (fe) models are popular tools that allow biologists to analyze the biomechanical behavior of complex anatomical structures. however, the expense and time required to create models from specimens has prevented comparative studies from involving large numbers of species. a new method is presented for transforming existing fe models using geometric morphometric methods. homologous landmark coordinates are digitized on the fe model and on a target specimen into which the fe model is b ... | 2009 | 19222567 |
| [registration of the bog turtle electroencephalogram under free movement conditions]. | | 2003 | 1274444 |
| development and validation of rapid environmental dna (edna) detection methods for bog turtle (glyptemys muhlenbergii). | bog turtles (glyptemys muhlenbergii) are listed as species of greatest conservation need (sgcn) for wildlife action plans in every state it occurs and multi-state efforts are underway to better characterize extant populations and prioritize restoration efforts. however, traditional sampling methods can be ineffective due to the turtle's wetland habitat, small size, and burrowing nature. molecular methods, such as qpcr, provide the ability to overcome this challenge by effectively quantifying min ... | 2019 | 31725720 |