Literaturdatenbank

WIKINDX Resources

Congdon, J. D., Gotte, S. W., & McDiarmid, R. W. (1993). Ontogenetic changes in habitat use by juvenile turtles (chelydra serpentina and chrysemys picta). Canadian Field Naturalist, 106(2), 241–248. 
Added by: Admin (23 Aug 2008 15:32:55 UTC)   Last edited by: Beate Pfau (22 May 2010 08:22:47 UTC)
Resource type: Journal Article
BibTeX citation key: Congdon1993
View all bibliographic details
Categories: General
Keywords: Chelydra, Chelydra serpentina, Chelydridae, Chrysemys, Chrysemys picta, Emydidae, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises, Verhalten = ethology
Creators: Congdon, Gotte, McDiarmid
Collection: Canadian Field Naturalist
Views: 2/697
Views index: 12%
Popularity index: 3%
Abstract     
During a 10-year period approximately 1600 turtles were captured and 9500 recaptured in East Marsh on the E. S. George Reserve in southeastern Michigan. Analysis of the marsh depth at point of capture indicates that younger and smaller juvenile snapping turtles (Chelydra serpentina ) and painted turtles (Chrysemys picta ) were more likely than older and larger juveniles to be captured in shallow portions of the marsh. A relationship of increased water depth with turtle size and age continued through to sexual maturity. Hatchlings and one-year-old individuals occupied significantly shallower portions of the marsh than did all other size categories. By resticting their activity to shallow water near shore, younger and smaller turtles may increase their foraging success and reduce the probability of encountering large fish or adult turtle predators.
Added by: Admin  Last edited by: Beate Pfau
wikindx 4.2.2 ©2014 | Total resources: 14930 | Database queries: 59 | Script execution: 0.43198 secs | Style: American Psychological Association (APA) | Bibliography: WIKINDX Master Bibliography