Literaturdatenbank
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Bernstein, N. P., Richtsmeier, R. J., Black, R. W., & Montgomery, B. R. (2007). Home range and philopatry in the ornate box turtle, terrapene ornata ornata, in iowa. American Midland Naturalist, 157(1), 162–174.
Added by: Admin (14 Aug 2008 20:32:44 UTC) |
| Resource type: Journal Article BibTeX citation key: Bernstein2007 View all bibliographic details  |
Categories: General Keywords: Emydidae, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises, Terrapene, Terrapene ornata Creators: Bernstein, Black, Montgomery, Richtsmeier Collection: American Midland Naturalist |
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| Abstract |
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We quantified home range size and philopatry in ornate box turtles, Terrapene ornata ornata, with minimum convex polygons (MCP) and 95% Kernel areas (K) calculated from radio telemetry data in Iowa during 1999–2001. We also analyzed philopatry by mark-recapture data during 1994–2000. Ten adult turtles were followed every other day from May to Sep. 2000 and seven of the turtles were followed in 2001. Mean monthly MCP and K home ranges of males and females did not significantly differ. Mean annual MCP and K home ranges for males were significantly larger than those of females. For an individual, monthly MCP home ranges overlapped on average 19.3% between years and K home ranges overlapped an average of 6.0%. There were no significant differences in annual or monthly home range overlap between sexes for K home ranges, but MCP monthly home range overlap was significantly larger for males. Annual MCP home ranges overlapped on average 40.9% between years and K annual home range overlap averaged 6.8%. Seven years of mark-recapture data were analyzed to determine movements between habitat zones. Turtles were found in sand prairie or shrubby border to sand prairies 69% of the time. Regardless of sex, turtles were twice as likely to be recaptured in the same sub-habitat from where they initially were found compared to the adjacent sub-habitat. Turtles were 2–3 times more likely to be in the adjacent sub-habitat than two sub-habitats away. Given the degree of philopatry exhibited by ornate box turtles in this area, turtle populations faced with habitat fragmentation or destruction will most likely decline.
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