Comparative Anatomy of Axial Skeleton of Red-eared Turtle (Trachemys scripta elegans, Wied 1838) and Softshell Turtle (Amyda cartilaginea, Boddaert 1770)
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چکیده
منابع مشابه
Phylogeography of the Asian softshell turtle Amyda cartilaginea (Boddaert, 1770): evidence for a species complex
Using up to 2456 bp mtDNA and up to 2716 bp nDNA of fresh samples and short sequences of three mitochondrial genes of historical museum material, we examine the phylogeography of Amyda cartilaginea. This data set provides evidence for the existence of deeply divergent genetic lineages which we interpret as three distinct species, two of which are polytypic. On the Great Sunda Islands, the distr...
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Turtles experience numerous modifications in the morphological, physiological, and mechanical characteristics of their shells through ontogeny. Although a general picture is available of the nature of these modifications, few quantitative studies have been conducted on changes in turtle shell shape through ontogeny, and none on changes in strength or rigidity. This study investigates the morpho...
متن کاملPhotoreceptors and visual pigments in the red-eared turtle, Trachemys scripta elegans.
Absorbance spectra of cone outer segments and oil droplets were recorded microspectrophotometrically in the retina of the red-eared turtle, Trachemys scripta elegans. There are four cone visual pigments, with lambda(max) = 617 nm (red sensitive), 515 nm (green sensitive), 458 nm (blue sensitive), and 372 nm (UV-sensitive). The red-sensitive pigment resides in single cones with red or orange oil...
متن کاملSpectral sensitivity of the photointrinsic iris in the red-eared slider turtle (Trachemys scripta elegans)
Our goal in this study was to examine the red-eared slider turtle for a photomechanical response (PMR) and define its spectral sensitivity. Pupils of enucleated eyes constricted to light by ∼11%, which was one-third the response measured in alert behaving turtles at ∼33%. Rates of constriction in enucleated eyes that were measured by time constants (1.44-3.70 min) were similar to those measured...
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ژورنال
عنوان ژورنال: Proceeding International Conference on Science and Engineering
سال: 2019
ISSN: 2598-232X,2597-5250
DOI: 10.14421/icse.v2.62