Department of Biology, Saint Francis Xavier University, Antigonish, Nova Scotia, Canada.
PLoS One. 2011 Apr 20;6(4):e18982. doi: 10.1371/journal.pone.0018982.
One of the most studied macroecological patterns is the interspecific abundance-occupancy relationship, which relates species distribution and abundance across space. Interspecific relationships between temporal distribution and abundance, however, remain largely unexplored. Using data for a natural assemblage of tabanid flies measured daily during spring and summer in Nova Scotia, we found that temporal occurrence (proportion of sampling dates in which a species occurred in an experimental trap) was positively related to temporal mean abundance (number of individuals collected for a species during the study period divided by the total number of sampling dates). Moreover, two models that often describe spatial abundance-occupancy relationships well, the He-Gaston and negative binomial models, explained a high amount of the variation in our temporal data. As for the spatial abundance-occupancy relationship, the (temporal) aggregation parameter, k, emerged as an important component of the hereby named interspecific temporal abundance-occurrence relationship. This may be another case in which a macroecological pattern shows similarities across space and time, and it deserves further research because it may improve our ability to forecast colonization dynamics and biological impacts.
最受研究的宏观生态学模式之一是种间丰度-占有关系，它涉及物种在空间中的分布和丰度。然而，种间时间分布和丰度之间的关系在很大程度上仍未得到探索。本研究利用新斯科舍省春季和夏季每天测量的自然组合采采蝇的数据，发现时间发生（一个物种在实验诱捕器中出现的采样日期比例）与时间平均丰度（研究期间采集的一个物种的个体数量除以总采样日期数）呈正相关。此外，两个通常很好地描述空间丰度-占有关系的模型，He-Gaston 和负二项式模型，解释了我们时间数据的大量变化。就空间丰度-占有关系而言，（时间）聚集参数 k 成为了这里命名的种间时间丰度-出现关系的一个重要组成部分。这可能是另一个宏观生态学模式在空间和时间上具有相似性的例子，值得进一步研究，因为它可能提高我们预测殖民动态和生物影响的能力。
