Spatial and Temporal Activity Patterns in Two Terrestrial Turtles

Strang, Carl A.

doi:10.2307/1563779

Cited by 46 publications

(23 citation statements)

References 8 publications

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“…Other factors, in addition to habitat quality, however, were believed to have influenced the decline (Stickel, 1978). This confirms observations made in other areas over shorter periods (Yahner, 1974;Madden, 1975;Strang, 1983). This confirms observations made in other areas over shorter periods (Yahner, 1974;Madden, 1975;Strang, 1983).…”

Section: Discussionsupporting

confidence: 88%

“…Additional comparisons of home-range size can be made on the basis of range lengths, which have been measured more frequently than areas. Homerange length in another Long Island area was of similar magnitude of that in Maryland (Nichols, 1939), and in a Pennsylvania area it was somewhat larger (Strang, 1983). In Tennessee, however, home ranges were smaller and population density was greater than in Maryland (Dolbeer, 1969).…”

Section: Discussionmentioning

confidence: 80%

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Home Range Behavior among Box Turtles (Terrapene c. carolina) of a Bottomland Forest in Maryland

Stickel¹

1989

Journal of Herpetology

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Society for the Study of Amphibians and Reptiles is collaborating with JSTOR to digitize, preserve and extend access to Journal of Herpetology.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 80%

Home Range Behavior among Box Turtles (Terrapene c. carolina) of a Bottomland Forest in Maryland

Stickel¹

1989

Journal of Herpetology

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“…Both wood turtle populations are now reproductively isolated from one another; there was no overlap of turtle home ranges during the entire study. Wood turtle home-range estimates (Strang 1983) strengthen our observations that the turtles in each population never overlapped with those in the other. Data are presented for the years 1974 to 1991; no turtles were found in 1992 or 1993 and we believe there are no turtles left in either population.…”

Section: Field Study Sitesupporting

confidence: 84%

A 20‐Yr Study Documenting the Relationship Between Turtle Decline and Human Recreation

Garber¹,

Burger²

1995

Ecological Applications

156

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This study documents the detrimental effects of human recreation on the North American wood turtle (Clemmys insculpta) in Connecticut. We chronicled the dynamics of two allopatric wood turtle populations in a protected southern New England wildlife reserve for 20 yr (1974‐1993). Both wood turtle populations were reproductively isolated from one another, physically separated ≈100 yr ago when a 1.5 km long human‐made pond was constructed. We conducted a mark‐and‐recapture study on a 1000‐ha section of a protected watershed in south‐central Connecticut (New Haven County). During this study we monitored 133 different wood turtles, observing them a total of 1176 times. Human and wood turtle demographics were recorded throughout this period. The data support the following conclusions: (1) following a period of apparent stability, two populations of wood turtles declined; (2) the declines were more or less synchronous in both populations; (3) the beginning of each decline corresponded to the opening of the habitat for recreation; (4) an increase in mean turtle age suggests a failure of recruitment; however, (5) a simultaneous reduction in numbers of adult females suggests that the failure of recruitment alone is not sufficient to explain the declines. Throughout our study the size of the forest remained the same, road building was restricted, and the quality of the air and water were constant. The wood turtle populations remained stable when people were denied access to the property. When this area was opened to human recreation (hiking, fishing) the two discrete wood turtle populations declined steadily; the total number of turtles in both populations declined by 100% in 10 yr. As wilderness areas become mixed‐use recreation areas, wood turtle populations may suffer. We conclude that without proper management, the increasing recreational use of parks, reservoirs, and wildlife reserves will adversely affect the long‐term survival of the North American wood turtle.

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“…The positive effects of leaf litter were also likely a result of both food and cover requirements. Strang (1983) found that leaf litter depth was positively associated with invertebrate abundance. Female wood turtles also bury themselves in leaf litter on hot summer days to avoid desiccation and over-heating (R. Tingley, pers.…”

Section: Discussionmentioning

confidence: 95%

Intra-specific niche partitioning obscures the importance of fine-scale habitat data in species distribution models

et al. 2010

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Geographic information systems (GIS) allow researchers to make cost-effective, spatially explicit predictions of species' distributions across broad geographic areas. However, there has been little research on whether using fine-scale habitat data collected in the field could produce more robust models of species' distributions. Here we used radiotelemetry data collected on a declining species, the North American wood turtle (Glyptemys insculpta), to test whether fine-scale habitat variables were better predictors of occurrence than land-cover and topography variables measured in a GIS. Patterns of male and female occurrence were similar in the spring; however, females used a much wider array of landcover types and topographic positions in the summer and early fall, making it difficult for GIS-based models to accurately predict female occurrence at this time of year. Males on the other hand consistently selected flat, low-elevation, riparian areas throughout the year, and this consistency in turn led to the development of a strong GIS-based model. These results demonstrate the importance of taking a more sex-specific and temporally dynamic view of the environmental niche.

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Spatial and Temporal Activity Patterns in Two Terrestrial Turtles

Cited by 46 publications

References 8 publications

Home Range Behavior among Box Turtles (Terrapene c. carolina) of a Bottomland Forest in Maryland

Home Range Behavior among Box Turtles (Terrapene c. carolina) of a Bottomland Forest in Maryland

A 20‐Yr Study Documenting the Relationship Between Turtle Decline and Human Recreation

Intra-specific niche partitioning obscures the importance of fine-scale habitat data in species distribution models

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