Hunting or gathering? A comparison of reptile survey techniques suggests the survey aims should direct the monitoring method

Q2 Agricultural and Biological Sciences Australian Zoologist Pub Date : 2023-02-27 DOI:10.7882/az.2023.010
A. Kutt, N. Colman
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Abstract

The choice of methods used for biodiversity assessments and monitoring are an important consideration for an effective inventory of species. There is little published data comparing trapping and active searching for reptile surveys. In this study we used data collected from 509 sites between 2000 and 2012 in Queensland’s tropical savannas to examine the relative success of trapping versus searching for surveying reptiles. Sampling comprised pitfall and funnel trapping, and diurnal and nocturnal active searching within a 1-ha quadrat over a five-day period. We used summary data, mixed model regression and Chi-squared tests to examine variation in abundance, richness, and frequency in captures. A total of 167 species representing nine families were recorded from 9986 captures or observations (3127 records from pitfall traps, 1813 from funnel traps and 5046 from active searching). Our results indicated that different methods were more appropriate depending on taxa (i.e., pitfall trapping for terrestrial skinks, funnel traps for Elapids), its habit (i.e., pitfalls or active searching for fossorial species, active searching for arboreal species) or rarity (i.e., Typhlopidae). We conclude that multiple survey methods are required for a full inventory of species; however, using the most appropriate method that address specific management questions in relation to target species or taxa, the reptile’s habit and different habitats being surveyed, should be a component in planning and approach to any research or monitoring.
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狩猎还是采集?爬行动物调查技术的比较表明,调查目标应指导监测方法
生物多样性评估和监测方法的选择是有效编制物种清单的重要考虑因素。很少有公开的数据比较捕获和主动搜索爬行动物的调查。在这项研究中,我们使用了2000年至2012年期间从昆士兰州热带稀树草原的509个地点收集的数据,以检查捕获与寻找测量爬行动物的相对成功。采样包括陷阱和漏斗陷阱,以及在1公顷的样方内进行为期5天的日间和夜间主动搜索。我们使用汇总数据、混合模型回归和卡方检验来检验捕获的丰度、丰富度和频率的变化。通过9986次捕获或观察共记录到9科167种(陷阱捕获3127条,漏斗捕获1813条,主动搜索5046条)。结果表明,不同的捕蝇方法根据不同的类群(陆生石龙子采用陷阱捕蝇法,Elapids采用漏斗捕蝇法)、习性(石龙子采用陷阱捕蝇法或主动寻找穴居种、主动寻找树栖种)或稀有度(石龙子采用蝗科)而不同。我们的结论是,需要多种调查方法来获得完整的物种清单;然而,使用最适当的方法来处理与目标物种或分类群、爬行动物的习性和正在调查的不同生境有关的具体管理问题,应成为任何研究或监测的规划和方法的一个组成部分。
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来源期刊
Australian Zoologist
Australian Zoologist Agricultural and Biological Sciences-Animal Science and Zoology
CiteScore
2.50
自引率
0.00%
发文量
43
期刊介绍: The Royal Zoological Society publishes a fully refereed scientific journal, Australian Zoologist, specialising in topics relevant to Australian zoology. The Australian Zoologist was first published by the Society in 1914, making it the oldest Australian journal specialising in zoological topics. The scope of the journal has increased substantially in the last 20 years, and it now attracts papers on a wide variety of zoological, ecological and environmentally related topics. The RZS also publishes, as books, and the outcome of forums, which are run annually by the Society.
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