Journal Article10.1656/058.022.0sp1202
Anthropogenic Threats to Alligator Snapping Turtles (Chelydridae: Macrochelys)
Charles D. Battaglia,Kevin M. Enge,Carl J. Franklin,James C. Godwin,Ethan J. Kessler,Eric C. Munscher,Kelly Norrid,Luke Pearson,Viviana Ricardez,Dirk J. Stevenson,Travis M. Thomas,John L. Carr +11 more
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TL;DR: In this article , the authors compile categorical data on threats from anthropogenic interactions and assess the prevalence of ingested fishing hooks, finding that bycatch involving fish hooks was 4 times more numerous than the second most numerous threat, turtle persecution.
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Abstract: Abstract - With the conservation status of Macrochelys (alligator snapping turtles) being examined at the national level, our objective was to compile categorical data on threats from anthropogenic interactions. We included information from (1) author-collected anecdotes on human–turtle interactions and (2) radiographs to assess the prevalence of ingested fishing hooks. We placed 173 interactions involving 192 incidents into 9 IUCN threat categories and found bycatch involving fish hooks to be 4 times more numerous than the second-most numerous threat, turtle persecution. Fishing bycatch resulted in a high proportion of turtle mortalities (39%), and bycatch incidents in several cases preceded the highest-mortality threat (53%), persecution of individuals involving shooting or blunt trauma. We recommend fishing bycatch-mitigation measures and educational efforts to help conserve Macrochelys.
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Citations
Demography of an Urban Population of Alligator Snapping Turtles (Macrochelys temminckii) in Texas
Eric C. Munscher,J. Daren Riedle,Arron Tuggle,Jordan Gray,Day B. Ligon,Valeria Gladkaya,Christiana Drake,Ross Owen Couvillon,Brian P. Butterfield,Andrew D. Walde +9 more
TL;DR: In this paper , the authors conducted a mark-recapture study of M. temminckii inhabiting Buffalo Bayou in Harris County, TX, from October 2016 through August 2021.
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Distribution Patterns and Factors Influencing Relative Abundance of the Alligator Snapping Turtle (Macrochelys temminckii) in Mississippi
TL;DR: In this article , the authors collected credible records from museums, literature, and the general public, as well as directly assessed the current distribution and relative abundance of the Alligator Snapping Turtle in all major river systems (i.e., Pascagoula, Pearl, Tombigbee, and Mississippi river drainages) in Mississippi.
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Nesting Emergences and Other Terrestrial Movements of Macrochelys (Testudines: Chelydridae)
John L. Carr,Day B. Ligon,Kevin M. Enge,Caleb J Krueger,Travis M. Thomas,Gerald R. Johnston,Mandi Gordon,Edward P. Hill,Dirk J. Stevenson,David A. Steen +9 more
TL;DR: In this article , the authors reviewed the literature and solicited unpublished observations of terrestrial movements of alligator snapping turtles (genus Macrochelys) and found that the majority of observations were associated with nesting behavior.
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Comparing cost, effort, and performance of environmental DNA sampling and trapping for detecting an elusive freshwater turtle
Elizabeth C. Sternhagen,Mark A. Davis,Eric R. Larson,Sarah E. Pearce,Stephen M. Ecrement,Aron D. Katz,Jinelle H. Sperry +6 more
TL;DR: eDNA analysis is a cost-effective and highly sensitive method for detecting the elusive Alligator Snapping Turtle, expanding its documented distribution and yielding detections at a higher rate than conventional trapping.
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Linear Activity Areas and Basking-Site Fidelity of Two Imperiled River Turtle Species (Graptemys oculifera and Graptemys flavimaculata) of Mississippi
Will Selman
TL;DR: Basking-site fidelity appears to be strong in both Graptemys species and is likely driven by deadwood persistence time and/or sexually divergent preferences in basking sites, which are likely driven by deadwood persistence time and/or sexually divergent preferences in basking sites.
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Population Status of the Suwannee Alligator Snapping Turtle (Macrochelys suwanniensis) in the Suwannee River, Florida
TL;DR: In this article , the authors conducted a capture-mark-recapture study of the Suwannee alligator snapping turtle (Macrochelys suwanniensis) in Florida.
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