德克萨斯州城市鳄鳄龟种群的人口学研究

IF 0.6 4区环境科学与生态学 Q4 BIODIVERSITY CONSERVATION

Southeastern Naturalist Pub Date : 2023-06-14 DOI:10.1656/058.022.0sp1213

Eric C. Munscher, J. D. Riedle, Arron Tuggle, J. Gray, D. B. Ligon, V. Gladkaya, C. Drake, R. Couvillon, Jonathon Bolton, Madeleine Morrison, B. Butterfield, A. Walde

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引用次数: 1

摘要

摘要:了解鳄鳄鳄龟(Macrochelys temminckii)的种群特征需要长期研究。大多数先前的研究没有提供人口统计数据。从2016年10月到2021年8月，我们对居住在德克萨斯州哈里斯县布法罗河的M. temminckii进行了一项标记重新捕获研究。我们在465个陷阱夜捕获了110个独特的个体，并记录了45次重新捕获。我们生成了8个生物指标。单位捕获量为0.267 ~ 0.547只/夜，种群估计值为173只(95% CI:138 ~ 250)，性别比为1.00 M:1.28 F，密度和生物量估计值分别为4.43只/河km和89.9 kg/km。鉴于对城市人口的人为风险可能会增加，有必要继续进行监测和研究。

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Demography of an Urban Population of Alligator Snapping Turtles (Macrochelys temminckii) in Texas

Abstract - Understanding population demographics of Macrochelys temminckii (Alligator Snapping Turtle) requires long-term studies. Most previous studies do not provide demographic population data. We conducted a mark–recapture study of M. temminckii inhabiting Buffalo Bayou in Harris County, TX, from October 2016 through August 2021. We captured 110 unique individuals during 465 trap nights and recorded 45 recaptures. We generated 8 biological metrics. Capture per unit effort varied from 0.267 to 0.547 turtles per trap-night, the population estimate was 173 turtles (95% CI:138–250), the sex ratio was 1.00 M:1.28 F, and density and biomass estimates were 4.43 turtles/river km and 89.9 kg/km, respectively. Given that anthropogenic risks to this urban population may increase, continued monitoring and research is warranted.

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来源期刊

Southeastern Naturalist 环境科学-生态学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

18-36 weeks

期刊介绍： The Southeastern Naturalist covers all aspects of the natural history sciences of terrestrial, freshwater, and marine organisms and the environments of the southeastern portion of North America, roughly bounded from North Carolina south to Florida, west to Texas, north to Oklahoma, and east back to North Carolina. Manuscripts based on field studies outside of this region that provide information on species within this region may be considered at the Editor’s discretion.