scholarly journals Blanding’s Turtle (Emydoidea blandingii) Potential Habitat Mapping Using Aerial Orthophotographic Imagery and Object Based Classification

2012 ◽  
Vol 4 (1) ◽  
pp. 194-219 ◽  
Author(s):  
Rebecca Barker ◽  
Douglas J. King
Keyword(s):  
Habitat Mapping ◽  
Emydoidea Blandingii ◽  
Blanding's Turtle ◽  
Potential Habitat ◽  
Object Based ◽  
Blanding’S Turtle

scholarly journals Emydoidea blandingii (Holbrook 1838) – Blanding’s Turtle

2008 ◽  
pp. 015.1-015.12 ◽  
Author(s):  
Justin Congdon ◽  
Terry Graham ◽  
Tom Herman ◽  
Jeffrey Lang
Keyword(s):  
Emydoidea Blandingii ◽  
Blanding's Turtle ◽  
Blanding’S Turtle

Population size and spatial ecology of Blanding’s Turtle (Emydoidea blandingii) in South March Highlands, Ottawa, Ontario, Canada

2015 ◽  
Vol 93 (7) ◽  
pp. 509-514 ◽  
Author(s):  
Caleb T. Hasler ◽  
Kevin Robinson ◽  
Nick Stow ◽  
Shawn R. Taylor
Keyword(s):  
Population Size ◽  
Spatial Ecology ◽  
Road Construction ◽  
Home Range Size ◽  
Adult Males ◽  
Emydoidea Blandingii ◽  
Blanding's Turtle ◽  
The Road ◽  
Gravid Females ◽  
Blanding’S Turtle

Between 2010 and 2011, an arterial road was constructed within provincially significant wetlands in the South March Highlands (SMH) located in Ottawa, Ontario, Canada. The wetlands and adjacent upland areas were determined to be sensitive habitat for Blanding’s Turtles (Emydoidea blandingii (Holbrook, 1838)) during the approval and permitting process, and a population study was required as part of the road construction project. The study consisted of a 4-year mark–recapture program and a movement study of radio-tagged adult turtles. General findings included the identification of 27 adult males and 55 females and a population estimate of 93 adults (95% Cl: 86–118). A 1:2.32 male to female sex bias was also found. Mean home-range size was 19.06 ha and tagged turtles moved, on average, more per observation in 2013 (191.40 m compared with 89.75 and 123.04 m in 2011 and 2012, respectively). Previously reported differences in movement patterns between males, females, and gravid females were not observed. The SMH Blanding’s Turtle population should be closely monitored because urban development continues in the area, which may further reduce the population size. Understanding the biology of imperiled populations across species’ ranges is necessary to promote conservation and adaptive wildlife management.

scholarly journals EFFECT OF RACCOON (PROCYON LOTOR) REDUCTION ON BLANDING’S TURTLE (EMYDOIDEA BLANDINGII) NEST SUCCESS

2016 ◽  
pp. 39-44 ◽  
Author(s):  
Rachael E. Urbanek ◽  
Gary A. Glowacki ◽  
Clayton K. Nielsen
Keyword(s):  
Procyon Lotor ◽  
Nest Success ◽  
Lake County ◽  
Artificial Nests ◽  
Emydoidea Blandingii ◽  
Blanding's Turtle ◽  
Abundance Estimates ◽  
Predator Management ◽  
Blanding’S Turtle

The Lake County Forest Preserve District has monitored a state-endangered Blanding’s Turtle (Emydoidea blandingii) population at two adjoining nature preserves along the Illinois–Wisconsin border since 2004. Prior to predator management, 92.3% of documented and unprotected natural Blanding’s Turtle nests (12 of 13) and 88% of monitored artificial nests have been at least partially depredated. The goal of this study was to determine the efficacy of subsidized Raccoon (Procyon lotor) removal efforts in increasing the nest success of Blanding’s Turtles. During April–May 2013 and 2014, we captured and euthanized 78 Raccoons from our 2 km2 study area. We estimated pre-removal abundance estimates using the Leslie depletion method; it appeared that we removed 83–89% of the Raccoons from the study area each year and pre-removal density estimates were 37.5% lower in 2014 than 2013. During the study period, we monitored 22 Blanding’s Turtle in situ unprotected nests. In 2013, one of seven (14%) Blanding’s Turtle nests was partially depredated and no nests were completely depredated, indicative of a successful impact of Raccoon removal on Blanding’s Turtle nest success. However in 2014, nine of 15 (60%) Blanding’s Turtle nests were depredated. Our results provide some evidence that removal of Raccoons may have increased Blanding’s Turtle nest success but other factors, such as a functional response of surviving Raccoons or depredation by other subsidized predators may be contributing to decreased nest success.

Hypotheses of aging in a long-lived vertebrate, Blanding's turtle (Emydoidea blandingii)

2001 ◽  
Vol 36 (4-6) ◽  
pp. 813-827 ◽  
Author(s):  
J.D. Congdon ◽  
R.D. Nagle ◽  
O.M. Kinney ◽  
R.C. van Loben Sels
Keyword(s):  
Emydoidea Blandingii ◽  
Blanding's Turtle ◽  
Blanding’S Turtle
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