Chelydra serpentina
Survival and Spatial Ecology of the Snapping Turtle, Chelydra serpentina , on the Upper Mississippi River
... We studied the survival and spatial ecology of adult Snapping Turtles ( Chelydra serpentina ) on Pool 8 of the Upper Mississippi River (UMR) during 1997-2001. We captured 597 Snapping Turtles 745 times (333 ...
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Anti-predator defenses of Brown Bullheads ( Ameiurus nebulosus ) and interactions with Snapping Turtles ( Chelydra serpentina )
... (Chelydra serpentina) is om - nivorous, consuming a variety of aquatic vegetation and prey ranging from aquatic insects and molluscs to fish, anurans, and, occasionally, waterfowl (Alexander 1943; Carr ...
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Oviposition and subsequent depredation of Snapping Turtle ( Chelydra serpentina ) nests in fresh asphalt
... Three observations reported here are of note. First, Snapping Turtles will select nesting substrates, includ- ing asphalt, where there is some risk of exposure of eggs to toxic chemicals. Second, predators, presumably ...
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Embryonic common snapping turtles (Chelydra serpentina) preferentially regulate intracellular tissue pH during acid–base challenges
... [Chelydra serpentina (Linnaeus 1758)] eggs were collected in north-western Minnesota, USA, and transported by automobile to the lab at the University of North Texas (Minnesota Department of Natural ...
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Status, distribution, and nesting ecology of Snapping Turtle ( Chelydra serpentina ) on Cape Breton Island, Nova Scotia, Canada
... (Chelydra serpentina) is native to mainland Nova Scotia and was first recorded present on Cape Breton Island in 1953 when a large adult was reported from the ocean beach at Port Hood, Inverness County ...
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Embryonic temperature influences juvenile temperature choice and growth rate in snapping turtles Chelydra serpentina
... Growth rate and choice of environmental temperature can profoundly influence the ecology and fitness of organisms. In reptiles, temperature choice can affect energy requirements, habitat partitioning, locomotor ...
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Temperature dependent sex determination modulates cardiovascular maturation in embryonic snapping turtles Chelydra serpentina
... We investigated sex differences in cardiovascular maturation in embryos of the snapping turtle Chelydra serpentina, a species with temperature-dependent sex determination. One group of eggs was incubated at ...
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Embryonic hypoxia programmes postprandial cardiovascular function in adult common snapping turtles (Chelydra serpentina)
... Ten clutches of common snapping turtle eggs [Chelydra serpentina (Linnaeus 1758)] were collected as previously described (Wearing et al., 2016). Briefly, eggs were collected from nests in north central ...
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Trumpeter Swan ( Cygnus buccinator ) behaviour, interactions with Snapping Turtles ( Chelydra serpentina ), and their Pleistocene history
... Snapping Turtle (Chelydra serpentina) predation on waterfowl and shorebirds was recorded long ago (alexander 1943; Lagler 1943; Coulter 1957; Pryor 1996). Willey and Halla (1972) thought that Snapping ...
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The pulmonary surfactant system matures upon pipping in the freshwater turtle Chelydra serpentina
... Pulmonary surfactant (PS), a mixture of phospholipids (PL), neutral lipids and surfactant proteins (SP), lowers surface tension within the lung, which increases lung compliance and improves the removal of fluid at birth. ...
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Convective oxygen transport during development in embryos of the snapping turtle Chelydra serpentina
... (Chelydra serpentina), embryonic heart rate drops approximately 20% between 70% and 90% incubation, a change that could result in an overall reduction in cardiac output (Eme et ...
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Influence of Hydration of the Environment on the Pattern of Nitrogen Excretion by Embryonic Snapping Turtles (Chelydra Serpentina)
... The size mass of eggs at the outset of study had a significant effect on amounts of ammonia and urea present at different stages in development Table 2, with large eggs containing more o[r] ...
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Diet and feeding behaviour of Snapping Turtles ( Chelydra serpentina ) and Midland Painted Turtles ( Chrysemys picta marginata ) in Algonquin Provincial Park, Ontario
... Data were collected using standard field methods, including haphazard mark–recapture surveys, nest site surveys, and radio telemetry, consistent with the long- term study (see Obbard and Brooks 1981 and Rollinson and ...
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Heritable variation for sex ratio under environmental sex determination in the common snapping turtle (Chelydra serpentina).
... Estimation of heritability of sex ratio: My results suggest that considerable quantitative genetic varia- tion for sex ratio exists in a reptile with TSD, the co[r] ...
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BIOLOGICAL ACTIVITIES OF ALTERNARIA SP RL4 – A POTENT ENDOPHYTIC FUNGUS ASSOCIATED WITH RAUVOLFIA SERPENTINA L BENTH
... Endophytic fungi were isolated from disease-free, healthy leaves and stems of R. serpentina plants. A total of eight different fungal strains were isolated from 30 leaves and 20 stem segments. During morphological ...
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MULTIPLE SHOOT INDUCTION IN INTACT SHOOT TIP, EXCISED SHOOT TIP AND NODAL SEGMENT EXPLANTS OF RAUWOLFIA SERPENTINA
... were obtained from a single shoot tip explant (Mukhopadhyay et al. 1991). Multiple shoots were also obtained from axillary meristems of R. serpentina cultured in MS medium supplemented with BA (4.44 µM) and NAA ...
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GREEN SYNTHESIS OF SILVER NANOPARTICLES USING EXTRACT OF SARPAGANDHA (RAUWOLFIA SERPENTINA); SYNTHESIS AND CHARACTERIZATIONSunil Pandurang GawaliDOWNLOAD/VIEW
... Rauwolfia Serpentina is commonly known as ‘sarpagandha’ or snakeroot. It belongs to the Apocynaceae family. It is an important Ayurvedic shrub about 30 to 90 cm in height with white and pinkish flower. The plant ...
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IN VITRO SHOOT PROLIFERATION FROM APICAL AND NODAL EXPLANTS OF RAUWOLFIA SERPENTINA (L ) BENTH AN ENDANGERED MEDICINAL PLANT
... Due to it’s over exploitation from wild resources Rauwolfia serpentina is currently listed in Appendix II of Convention on International Trade in Endangered Species. [2] This has led to listing of this species as ...
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PHYTO ANALYSIS AND COMPARATIVE ESTIMATION OF TFC RAUVOLFIA SERPENTINA QUALITY PARAMETERS IN MARKETED AND FOREST SAMPLES
... R. serpentina the phytochemical those were reported positive in control samples but when the sample phytochemical tests were performed with marketed samples, some of the phytoconstituents were absent in them ...
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Assessment of reserpine content by hptlc in some ayurvedic formulations containing sarpagandha (rauwolfia serpentina)
... Sarpagandha or Rauwolfia serpentina L. Benth Kurz is a small, woody, perennial shrub and is believed as one of the best-known medicinal plants in the world. 1 The plant was mentioned in the manuscripts of Indian ...
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