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Quantifiable long-term monitoring on parks and nature preserves

机译:量化的公园和自然保护区长期监测

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Herpetofauna have declined globally, and monitoring is a useful approach to document local and long-term changes. However, monitoring efforts often fail to account for detectability or follow standardized protocols. We performed a case study at Hemlock Bluffs Nature Preserve in Cary, NC to model occupancy of focal species and demonstrate a replicable long-term protocol useful to parks and nature preserves. From March 2010 to 2011, we documented occupancy of Ambystoma opacum (Marbled Salamander), Plethodon cinereus (Red-backed Salamander), Carphophis amoenus (Eastern Worm Snake), and Diadophis punctatus (Ringneck Snake) at coverboard sites and estimated breeding female Ambystoma maculatum (Spotted Salamander) abundance via dependent double-observer egg-mass counts in ephemeral pools. Temperature influenced detection of both Marbled and Red-backed Salamanders. Based on egg-mass data, we estimated Spotted Salamander abundance to be between 21 and 44 breeding females. We detected 43 of 53 previously documented herpetofauna species. Our approach demonstrates a monitoring protocol that accounts for factors that influence species detection and is replicable by parks or nature preserves with limited resources.
机译:Herpetofauna在全球范围内呈下降趋势,监视是记录本地和长期变化的有用方法。但是,监视工作通常无法考虑可检测性或遵循标准化协议。我们在北卡罗来纳州卡里的Hemlock Bluffs自然保护区进行了案例研究,以模拟重点物种的居住情况,并证明了可复制的长期协议对公园和自然保护区有用。从2010年3月到2011年,我们记录了在遮盖板部位的不透明Ambystoma opacum(大理石Sal),Plethodon cinereus(红背Sal),Carphophis amoenus(东部蠕虫蛇)和Diadophis punctatus(Ringneck Snake)的居留情况,并估计了繁殖雌性Ambystoma macac (斑点Sal)通过临时池中依赖的双观察者卵量计数得到的丰度。温度影响了大理石和红背Sal的检测。根据鸡蛋的质量数据,我们估计斑Sal的丰度在21至44个育种雌性之间。我们检测到53种先前记录的疱疹性动植物物种中的43种。我们的方法演示了一种监视协议,该协议说明了影响物种检测的因素,并且可以由资源有限的公园或自然保护区复制。

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