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Eliminating autocorrelation reduces biological relevance of home range estimates
1. Destructive subsampling or restrictive sampling are often standard procedures to obtain independence of spatial observations in home range analyses. We examined whether home range estimators basedExpand
VALIDATION TESTS OF AN AMPHIBIAN CALL COUNT SURVEY TECHNIQUE IN ONTARIO, CANADA
Amphibian call count surveys in Ontario use a common survey protocol. We evalu- ated the precision and accuracy of data collected by these methods. Multiple observers monitored the same routes toExpand
Hatchling turtles survive freezing during winter hibernation.
TLDR
Hatchlings of the painted turtle (Chrysemys picta marginata) are unique as the only reptile and highest vertebrate life form known to tolerate the natural freezing of extracellular body fluids during winter hibernation, and a survey of possible cryoprotectants revealed a 2- to 3-fold increase in glucose content of liver and blood and a 3- fold increase in blood glycerol in response to freezing. Expand
Maternal and environmental influences on growth and survival of embryonic and hatchling snapping turtles (Chelydra serpentina)
TLDR
Mass at hatching was correlated with egg mass, but neither variable was related significantly to post-hatching survival or rate of growth, and eggs incubated at the highest temperature produced smaller hatchlings which subsequently grew more slowly than those from eggs incubation at the low and intermediate temperatures. Expand
Body size, age distribution, and reproduction in a northern population of wood turtles (Clemmys insculpta)
TLDR
The hypothesis that turtles in northern populations are larger and older at maturity than are those in southern populations is supported and Comparisons among females refuted two predictions from optimal egg size theory. Expand
Habitat Selection by Blanding's Turtles (Emydoidea blandingii) in a Relatively Pristine Landscape
TLDR
Investigation of habitat selection by Blanding's turtles in a large protected area, Algonquin Park, suggests that large study sites in relatively pristine areas may include a large amount of suitable high-quality habitats such that habitat selection at a fine scale may not be detected or multiple habitat types may provide the resources necessary to support populations. Expand
Interclutch and interpopulation variation in the effects of incubation conditions on sex, survival and growth of hatchling turtles (Chelydra serpentina)
TLDR
Hatchling size cannot be used as an index of hatchling quality or posthatching success, unless interclutch and interpopulation variation are taken into account, and results support the Charnov—Bull model. Expand
Environmental contamination and developmental abnormalities in eggs and hatchlings of the common snapping turtle (Chelydra serpentina serpentina) from the Great Lakes-St Lawrence River basin
TLDR
A significant increase in abnormal development with increasing polychlorinated aromatic hydrocarbon exposure in eggs, particularly PCDD and PCDF concentrations is found, and the risk of abnormality was not significantly higher as toxic equivalent concentrations increased in eggs. Expand
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