Conservation Implications of Initial Orientation of Naïve Hatchling Snapping Turtles (Chelydra serpentina) and Painted Turtles (Chrysemys picta belli) Dispersing From Experimental Nests

2011 ◽  
Vol 10 (1) ◽  
pp. 42-53 ◽  
Author(s):  
Justin D. Congdon ◽  
Michael Pappas ◽  
Bruce Brecke ◽  
Joshua Capps
Keyword(s):  
Chrysemys Picta ◽  
Initial Orientation ◽  
Chelydra Serpentina ◽  
Conservation Implications ◽  
Painted Turtles ◽  
Snapping Turtles

scholarly journals Over-wintering Characteristics of West-Central Wisconsin Blanding's Turtles, Emydoidea blandingii

2010 ◽  
Vol 124 (2) ◽  
pp. 134 ◽  
Author(s):  
Richard P. Thiel ◽  
Timothy T. Wilder
Keyword(s):  
Chrysemys Picta ◽  
Anoxia Tolerance ◽  
Chelydra Serpentina ◽  
Emydoidea Blandingii ◽  
Anoxic Conditions ◽  
Painted Turtles ◽  
West Central ◽  
Remarkable Degree ◽  
Snapping Turtles

Hibernation of adult-sized Blanding's Turtles was studied at two west-central Wisconsin sites between 1991 and 2008. Turtles arrived at hibernacula from mid September to early October, spending 126 to 216 days at these sites, and generally emerged in early April yearly. Sixty percent of females and 30 percent of males hibernated in natural over man-made structures as hibernation sites. Anoxic conditions near five hibernation sites ranged from 78 to 100 days. Shell temperatures of three turtles monitored over five winters remained at <1°C a mean of 2,274 hours each winter. Over the same period, four turtles' temperatures were between 0° and -1°C a mean of 302 hours. During the course of our study, hibernating west-central Wisconsin Blanding's Turtles demonstrated a remarkable degree of both cold and anoxia-tolerance similar to that observed among Painted Turtles (Chrysemys picta) and Snapping Turtles (Chelydra serpentina).

scholarly journals Diet and feeding behaviour of Snapping Turtles (Chelydra serpentina) and Midland Painted Turtles (Chrysemys picta marginata) in Algonquin Provincial Park, Ontario

2016 ◽  
Vol 129 (4) ◽  
pp. 403 ◽  
Author(s):  
Patrick D. Moldowan ◽  
Matthew G. Keevil ◽  
Peter B. Mills ◽  
Ronald J. Brooks ◽  
Jacqueline D. Litzgus
Keyword(s):  
Feeding Behaviour ◽  
Aquatic Vegetation ◽  
Chrysemys Picta ◽  
Chelydra Serpentina ◽  
Ephemeral Ponds ◽  
Amphibian Larvae ◽  
Painted Turtles ◽  
Snapping Turtles ◽  
Odonate Larvae ◽  
Provincial Park

We compare diet and feeding behaviour of Snapping Turtles (Chelydra serpentina) and Midland Painted Turtles (Chrysemys picta marginata) in Algonquin Provincial Park, Ontario, Canada. We observed young Chelydra and Chrysemys turtles feeding on insect and amphibian larvae in ephemeral ponds, adult Chrysemys terrestrially foraging on odonate larvae, and adult Chelydra consuming aquatic vegetation and seeds. These and other observations highlight the importance of seasonally available habitat and food for juvenile turtles. We also discuss the evidence for, and importance of, turtles as seed-dispersal agents for aquatic vegetation. Illustrative video recordings accompany our dietary observations.

Temporal Variation in Growth Rate and Age at Maturity of Male Painted Turtles, Chrysemys picta

1993 ◽  
Vol 130 (2) ◽  
pp. 314 ◽  
Author(s):  
Nat B. Frazer ◽  
Judith L. Greene ◽  
J. Whitfield Gibbons
Keyword(s):  
Growth Rate ◽  
Temporal Variation ◽  
Chrysemys Picta ◽  
Age At Maturity ◽  
Painted Turtles

Helminths of Chrysemys picta belli in Manitoba including Polystomoides pauli sp.n. (Monogenea: Polystomatidae)

1979 ◽  
Vol 57 (5) ◽  
pp. 1046-1051 ◽  
Author(s):  
Shannon F. Timmers ◽  
Paul D. Lewis Jr.
Keyword(s):  
Oral Mucosa ◽  
Chrysemys Picta ◽  
First Report ◽  
Painted Turtles ◽  
Species Inquirendae

One new monogenean is described and 11 other helminths are reported from painted turtles from eastern Manitoba. Polystomoides pauli sp.n. from the host's oral mucosa most closely resembles P. coronatum (Leidy) and P. oris Paul. It differs from the former in having more and larger genital coronet spines, and possession of anterior cecal diverticula, and from the latter in size, larger number of genital coronet spines, and possession of great hooks with entire, not bifid, roots. Price's emendation of P. coronatum to include five species he held to be its synonyms is rejected; and the five species, P. opacum Stunkard, P. megacotyle Stunkard, P. microcotyle Stunkard, P. albicollis MacCallum, and P. digitatum MacCallum are designated species inquirendae. Polystomoides coronatum is restricted to the redescription given for it by Stunkard. The trematodes Crepidostomum sp., Eustomos chelydrae, Microphallus opacus, Protenes angustus, Spirorchis parvus, S. scripta, Telorchis attenuatus, and T. corti, the cestode Proteocephalus sp., and the nematodes Serpinema trispinosa and Spiroxys contortus are reported from Chrysemys picta belli. Except for P. angustus, all represent first reports from turtles in Canada. This is the first report of E. chelydrae from the host stomach, and the second report of M. opacus from naturally infected turtles.

Patterns and Possible Significance of Water Exchange by Flexible-Shelled Eggs of Painted Turtles (Chrysemys picta)

1981 ◽  
Vol 54 (1) ◽  
pp. 165-178 ◽  
Author(s):  
Gary C. Packard ◽  
Mary J. Packard ◽  
Thomas J. Boardman
Keyword(s):  
Water Exchange ◽  
Chrysemys Picta ◽  
Painted Turtles

The Adaptive Strategy for Overwintering by Hatchling Snapping Turtles (Chelydra serpentina)

2001 ◽  
Vol 35 (3) ◽  
pp. 514 ◽  
Author(s):  
Paul A. Sims ◽  
Gary C. Packard ◽  
Philip L. Chapman
Keyword(s):  
Adaptive Strategy ◽  
Chelydra Serpentina ◽  
Snapping Turtles

Mercury concentrations in snapping turtles (Chelydra serpentina) correlate with environmental and landscape characteristics

Ecotoxicology ◽  
2011 ◽  
Vol 20 (7) ◽  
pp. 1599-1608 ◽  
Author(s):  
Madeline A. Turnquist ◽  
Charles T. Driscoll ◽  
Kimberly L. Schulz ◽  
Martin A. Schlaepfer
Keyword(s):  
Chelydra Serpentina ◽  
Landscape Characteristics ◽  
Snapping Turtles
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