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Tuesday, December 6

  1. page Scientific Report edited ... Figure 6: {Picture_9.png} Figure 7: Not Buried Buried 75 F 62 F 69 F 66 F …
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    Figure 6:
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    Figure 7:
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    Maps:
    Figure 78
    {Screen_shot_2011-12-06_at_10.13.38_AM.png}
    The satellite image above shows the new base ball fields and the red arrows
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    home range was located in what is now the outfield of the baseball field.The
    yellow circle indicates his hibernation location.
    Figure 89
    {Topomap.jpg}
    Topographic map of the Alcatraz's Home range. (Finds labeled)
    {TopoKey.jpg}
    Home Range ~ .712 Acres or .288 hectares
    Figure 910
    {Screen_shot_2011-12-06_at_10.40.58_PM.png}
    Note: 3 of the 21 turtles were rescues from the construction
    Figure 1011
    Number of Turtles Captured in Intermittent and Rainy Day Valley
    2 years Prior-2009
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    9:36 pm
  2. page Scientific Report edited ... Figure 6: {Picture_9.png} Not Buried Buried 75 62 69 66 68 60 74 58 65 64 Map…
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    Maps:
    Figure 7
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    9:35 pm
  3. page Scientific Report edited ... 9 Area of highest density of turtle captures on Campus Discussion: In the years following …
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    Area of highest density of turtle captures on Campus
    Discussion:
    In the years following the construction of the baseball field the data shows a decrease in turtle population in the area surrounding the construction site. Several scientific reports support these findings; for example, a report published by researchers in Florida called “The Influence of Disturbance Events on the Survival and Dispersal Rates of Box Turtles” reports a decline in the turtle populations following a human disturbance to an ecosystem that fragmented habitat. Figure 11 that shows the number of turtles captured in the two years before the construction of the baseball field is 55% higher than the number of turtles captured following the construction of the fields. Not to mention 12 of the 21 turtles that were at one point captured before the construction of the field were never seen again. In Nazdrowcz and Roth’s report, “ Population Ecology of the Eastern Box Turtle in a Fragmented Landscape,” their data supports the decline in population that follows the habitat destruction and fragmentation seen on Lovett’s campus, since they witnessed a similar occurrence in their study.
    Furthermore, the disturbance created by the leveling of the baseball fields had a serious impact on the shapes and locations of the home ranges of the box turtles that lived either entirely or partly within the construction area. Turtles such as Alcatraz adjusted their home ranges to border the large new retaining wall that destroyed large portions of their home ranges. Alcatraz illustrates the box turtle’s ability to adjust its home range in response to disaster in figures 7 and 8. Scientist Robert Cook first reported that Box Turtles could be entirely relocated in his 1990 report, and this study has shown how they can reestablish their home ranges. Figure 7 shows the narrow corridor of woodland that remains from the construction. Box turtles whose home ranges were destroyed relocated to this strip, and the result is that this area has the highest density of turtles captured on campus.
    By using telemetry to determine Alcatraz’s home range, a surfeit of qualitative data was gathered. For example, of the 10 finds completed 5 of the times Alcatraz was covered by a layer of leaves. The vital role that the decomposing leaves play in camouflaging and facilitating hibernation makes them a vital part of box turtle habitat. This means that part of good box turtle habitat contains deciduous hardwoods that drop leaf litter. Soil and water also play vital roles in turtle habitat. As the temperature dropped as fall continued during the study Alcatraz was buried increasingly deeper and deeper. In the month of November he did not move more than 10 yards shows his intended hibernation location. The data shows that the highest density of box turtles lives in the area around the retaining wall, since this area contains the best box turtle habitat. However, the overall decrease in population shows that even if habitat the habitat is prime fragmented habitat hurts turtle populations.

    Works Cited:
    Dorcas, Michael. "The Davidson College Box Turtle Study." Box Turtle
    Conservation @The Davidson College Herpetology Laboratory. Davidson
    College, 5 Feb. 2004. Web. 6 Dec. 2011. <http://www.bio.davidson.edu/
    people/midorcas/research/Contribute/box%20turtle/boxmain.htm>.
    Cook, Robert P. "Dispersal, home range establishment, survival, and reproduction
    of translocated eastern box turtles, Terrapene c. carolina." Lab / Study
    (Oct. 2003): 197-228. PDF file.

    Carroll, Lindsay, and Delgado Patricia. "Eastern Box Turtle Study." Anita C.
    Leight Estuary Center. Chesapeake Bay National Estuarine Research Reserve
    in Maryland, 2011. Web. 6 Dec. 2011. <http://www.otterpointcreek.org/
    research-and-monitoring/eastern-box-turtle-study/>.
    Cook, Robert P. "Dispersal, home range establishment, survival, and reproduction
    of translocated eastern box turtles, Terrapene c. carolina." Lab / Study
    (Oct. 2003): 197-228. PDF file.
    Dorcas, Michael. "The Davidson College Box Turtle Study." Box Turtle
    Conservation @The Davidson College Herpetology Laboratory. Davidson
    College, 5 Feb. 2004. Web. 6 Dec. 2011. <http://www.bio.davidson.edu/
    people/midorcas/research/Contribute/box%20turtle/boxmain.htm>.

    (view changes)
    9:33 pm
  4. page home edited Turtles O'HoulihanJulian, Blake and William http://nsm.uh.edu/~dgraur/popbio/Applied%20Herpetolog…
    Turtles O'HoulihanJulian, Blake and William
    http://nsm.uh.edu/~dgraur/popbio/Applied%20Herpetology%20article%20Box%20Turtle.pdf
    {Picture_16.png} Baseline
    Baseline Data
    FAQ's
    Helpful Internet Sites
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    9:30 pm
  5. page Scientific Report edited ... Abstract: A. The objective of the experiment was to track and observe the movements of Easter…
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    Abstract:
    A. The objective of the experiment was to track and observe the movements of Eastern Box Turtles to determine home range, movement patterns, and possible hibernation spots. Using this data along with data collected by other groups, past groups, as well as anecdotal evidence it was possible to determine how Turtles on the Lovett Campus interact with the biotic community and man-made habitat changes as well as determine key environmental factors critical to the survival of Terrapene Carolina Carolina.
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    turtles one turtle per group had to first be captured.
    C. By using telemetry, Alcatraz’ home range was estimated to be about .712 acres. Also, by using anecdotal evidence, Alcatraz’ preferred habitat, reaction to temperature and climate, potential food sources, as well as possible hibernation spot could all be determined from the experiment.
    D. With Alcatraz’ home range at about .712 acres, an argument can be made that Eastern Box Turtles have the ability to shift their home ranges due to obstruction of home range or natural stresses. Recent construction resulted in a baseball field being built on the majority of Alcatraz’ past home range yet his home range size is still only slightly below the average home range of male turtles on the Lovett Campus, .774 acres. This apparent shift in home range shows the Eastern Box Turtles ability to adapt and survive in it’s environment. However, passed data showed that the construction resulted in the death of a still unknown number of box turtle so human interference with box turtles should be kept at a minimum to ensure their survival. The anecdotal evidence collected showed what parts of the ecosystem are critical to the survival of the Eastern Box Turtle as well as how the box turtle might react to certain changes like increasing heat or cold. By recognizing parts of the environment critical to the campus population of Eastern Box Turtle’s survival it will be easier to insure the survival of the population of Terrapene Carolina Carolina if future construction or other human interference seems eminent. Overall, the campus is a microcosm for how a larger population can be affected by human changes in the environment and how these larger populations could be protected as they inevitably interact with human beings.
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  6. page Scientific Report edited ... Figures 3: {Picture_3.png} {Picture_16.png} ... and 5: Sexual Dimorphism {Picture_8.p…
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    Figures 3:
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    and 5: Sexual Dimorphism
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    Figure 6:
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    9:12 pm
  7. page Scientific Report edited ... Tables and Graphs: Figure 1 Figure 2 {Picture_4.png} {Picture_1.png} {Picture_3.png} Ca…
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    Tables and Graphs:
    Figure 1 Figure 2
    {Picture_4.png} {Picture_1.png} {Picture_3.png}
    Campus Population Estimation:
    (Turtles Found Through 2010)(Turtles Found in 2011)
    (Recaptured Turtles Found in 2011)
    (58)(11) = Population Estimate of About 91 Turtles
    (7)
    Figure 3 Figure

    Figures 3:
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    Maps:
    Figure 7
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    {TopoKey.jpg}
    Home Range ~ .712 Acres or .288 hectares
    Figure 109
    {Screen_shot_2011-12-06_at_10.40.58_PM.png}
    Note: 3 of the 21 turtles were rescues from the construction
    Figure 1110
    Number of Turtles Captured in Intermittent and Rainy Day Valley
    2 years Prio-2009Prior-2009
    14
    2 years Post-2009 (Size
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  10. page Scientific Report edited ... Tables and Graphs: Figure 1 Figure 2 {Picture_4.png} {Picture_1.png} {Picture_3.png} C…
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    Tables and Graphs:
    Figure 1 Figure 2
    {Picture_4.png} {Picture_1.png} {Picture_3.png}
    Campus Population Estimation:
    (Turtles Found Through 2010)(Turtles Found in 2011)
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    (7)
    Figure 3 Figure 4
    {Picture_8.png} {Picture_1.png}
    Figure 5 Figure 6
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    9:05 pm

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