globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0152335
论文题名:
The Point Count Transect Method for Estimates of Biodiversity on Coral Reefs: Improving the Sampling of Rare Species
作者: T. Edward Roberts; Thomas C. Bridge; M. Julian Caley; Andrew H. Baird
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2016
发表日期: 2016-3-24
卷: 11, 期:3
语种: 英语
英文关键词: Coral reefs ; Species diversity ; Spatial and landscape ecology ; Biodiversity ; Habitats ; Reefs ; Community ecology ; Relative abundance distribution
英文摘要: Understanding patterns in species richness and diversity over environmental gradients (such as altitude and depth) is an enduring component of ecology. As most biological communities feature few common and many rare species, quantifying the presence and abundance of rare species is a crucial requirement for analysis of these patterns. Coral reefs present specific challenges for data collection, with limitations on time and site accessibility making efficiency crucial. Many commonly used methods, such as line intercept transects (LIT), are poorly suited to questions requiring the detection of rare events or species. Here, an alternative method for surveying reef-building corals is presented; the point count transect (PCT). The PCT consists of a count of coral colonies at a series of sample stations, located at regular intervals along a transect. In contrast the LIT records the proportion of each species occurring under a transect tape of a given length. The same site was surveyed using PCT and LIT to compare species richness estimates between the methods. The total number of species increased faster per individual sampled and unit of time invested using PCT. Furthermore, 41 of the 44 additional species recorded by the PCT occurred ≤ 3 times, demonstrating the increased capacity of PCT to detect rare species. PCT provides a more accurate estimate of local-scale species richness than the LIT, and is an efficient alternative method for surveying reef corals to address questions associated with alpha-diversity, and rare or incidental events.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0152335&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/25119
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia;Australian Institute of Marine Science, Townsville, QLD, Australia;Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia;Australian Institute of Marine Science, Townsville, QLD, Australia;Australian Institute of Marine Science, Townsville, QLD, Australia;Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia

Recommended Citation:
T. Edward Roberts,Thomas C. Bridge,M. Julian Caley,et al. The Point Count Transect Method for Estimates of Biodiversity on Coral Reefs: Improving the Sampling of Rare Species[J]. PLOS ONE,2016-01-01,11(3)
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