Variation in Relative Abundance, Population Structure, and Body Size of the Suwannee Alligator Snapping Turtle (Macrochelys suwanniensis) in the Suwannee River

被引：3

作者：

Thomas, Travis M. ^{[1
]}

Enge, Kevin M. ^{[2
]}

Suarez, Eric ^{[3
]}

Barry, Savanna C. ^{[1
]}

Johnson, Steve A. ^{[4
]}

机构：

[1] Univ Florida, Nat Coast Biol Stn, Cedar Key, FL 32625 USA

[2] Florida Fish & Wildlife Conservat Commiss, Fish & Wildlife Res Inst, Gainesville, FL 32601 USA

[3] Florida Fish & Wildlife Conservat Commiss, Div Habitat & Species Conservat, W Palm Beach, FL 33412 USA

[4] Univ Florida, Dept Wildlife Ecol & Conservat, Gainesville, FL 32611 USA

来源：

SOUTHEASTERN NATURALIST | 2023年 / 22卷

关键词：

TEMMINCKII;

D O I：

10.1656/058.022.0sp1216

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Geological processes influence water chemistry and biological productivity along the Suwannee River and divide the mainstem of the river into 6 distinct ecological reaches ( ERs) in Florida. Because of these distinctions, we hypothesized that the Macrochelys suwanniensis (Suwannee Alligator Snapping Turtle) population varies among ERs. During 2011-2013, we sampled two 5-km sites in each ER to investigate spatial variation in relative abundance, sex ratio, size-class distribution, and body size of M. suwanniensis. Capture rates and male body sizes were greater in the middle ERs than in the upstream and downstream ERs. Sex ratios were male-skewed only in the middle ERs. Additional research is needed to understand the ecological drivers of M. suwanniensis population dynamics in this river.

引用

页码：264 / 274

页数：11

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