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Status and Current Distribution of the Pine Barrens Treefrog (Hyla andersonii) in Florida

机译：佛罗里达州松树禁止Treefrog（Hyla Andersonii）的状态和当前分布

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摘要

We conducted roadside call surveys at 111 historical Hyla andersonii (Pine Barrens Treefrog) sites in 2013-2016. We detected the species at 49 sites (44%), which is consistent with surveys conducted in the early 1980s. We detected the species throughout its historical range except Holmes County, which only has 4 historical sites. We also identified 33 new sites on public lands and 4 new sites on private lands. We used multi-season occupancy models to determine the influence of site and survey covariates on species occupancy and detection rates in Blackwater River State Forest. Species detection was positively associated with air temperature and partial cloud-cover and negatively associated with clear skies. Pine Barrens Treefrog occupancy rates were lower at survey sites surrounded by hardwood-dominated wetlands, suggesting that hardwood encroachment has negatively impacted this species on some areas of Blackwater River State Forest. The best model had an estimated detection probability of 0.43 (95% CI = 0.29-0.47) and an estimated occupancy of 0.63 (95% CI = 0.43-0.79). We recommend that future call surveys include a minimum of 5 visits to each survey site before inferring species absence. Our surveys suggest that the status and distribution of the species remain stable despite some habitat degradation.
机译：我们在2013 - 2016年111次历史悠久的Hyla Andersonii（Pine贫瘠的Treefrog）网站上进行了路边呼叫调查。我们在49个地点（44％）检测到物种，这与在20世纪80年代初进行的调查一致。除福尔摩斯县以外，我们在整个历史范围内检测到这些物种，只有4个历史遗址。我们还确定了33个公共土地新网站和私人土地上的4个新网站。我们使用了多赛季占用模式来确定现场对黑水河流河森林物种占用和检测率的影响。物种检测与空气温度和部分云覆盖呈正相关，与透明天空负相关。松木荒谬的Tire FringFrog占用率在硬木主导的湿地包围的调查遗体下降，这表明硬木侵占在黑水河流州森林的一些地区产生了负面影响。最佳模型的估计检测概率为0.43（95％CI = 0.29-0.47），估计占用率为0.63（95％CI = 0.43-0.79）。我们建议未来的呼叫调查在推断物种缺席之前，至少对每个调查部位至少5次访问。我们的调查表明，尽管有些栖息地退化，但物种的地位和分配仍保持稳定。

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