A comparison of 1978 and 2006 peak pollen seasons and sampling methods in Missoula, Montana.
A comparison of 1978 and 2006 peak pollen seasons and sampling methods in Missoula, Montana.
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DOI：
10.1080/00173131003587049
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发表时间：
2010-06
期刊：
影响因子：
0.9
通讯作者：
Ward TJ
中科院分区：
文献类型：
--
作者：
Crispen KL;Gillespie DN;Weiler EC;Noonan CW;Hamilton RF;Ward TJ
在蒙大拿州的米苏拉进行了一项研究，将1978年的当地花粉计数与近30年后的2006年使用两种不同的测量技术（达勒姆重量采样器和Burkard体积采样器）测量的花粉计数进行比较。在春季，夏季和秋季，分别测量花粉高峰时间的趋势，比较了两年之间的皮尔逊相关性和植物属的发生频率。在这两个研究期间，还对气象条件进行了检查。在比较这两年时，4月至8月的不同计数之间存在统计学显著的线性关联，任何给定月份的花粉类型水平相似。在每项研究中确定的五种主要花粉类型（基于计数）为2006年的松属、禾本科、杨属、赤杨属和桦木属，以及1978年的松属、禾本科、杨属、槭属和蒿属。总之，大多数属表现出类似的峰值授粉时间之间的两年，这表明，结果从达勒姆（重量）和Burkard（体积）采样方法是可比的，当报告发生的相对频率。
A study was conducted in Missoula, Montana to compare local pollen counts from 1978 with those measured nearly 30 years later in 2006 using two different measurement techniques (Durham gravimetric sampler and a Burkard volumetric sampler). Trends in peak pollen times measured during the spring, summer and autumn, respectively, were compared between the two years by Pearson’s correlation and frequency of occurrence of plant genus. Meteorological conditions were also examined during each of the two study periods. In comparing the two years, there was a statistically significant linear association between the different counts for the months of April through August, with similar levels of pollen types for any given month. The five predominant pollen types (based on counts) identified in each study were Pinus, Poaceae, Populus, Alnus, and Betula for 2006 and Pinus, Poaceae, Populus, Acer and Artemisia for 1978. In summary most of the genera displayed similar peak pollination timing between the two years, suggesting that results from the Durham (gravimetric) and Burkard (volumetric) sampling methods are comparable when reporting relative frequency of occurrence.
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