Weak but consistent abundance–occupancy relationships across taxa, space and time
Weak but consistent abundance–occupancy relationships across taxa, space and time
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跨类群、空间和时间的弱但一致的丰富度占据关系
DOI：
10.1111/geb.13472
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发表时间：
2022
影响因子：
6.4
通讯作者：
Dallas, Tad
中科院分区：
文献类型：
--
作者：
Ten Caten, Cleber;Holian, Lauren;Dallas, Tad
目的多度-占有率关系表明，本地丰富的物种比不丰富的物种占据更多的网站。丰度-占有率关系的出现和检测虽然得到广泛支持，但对取样和检测过程很敏感。来自大规模标准化采样工作的数据是解决丰度-占用关系的关键。我们的目的是使用这样一个数据集，以评估发生的丰度占用关系在不同的空间颗粒和随着时间的推移，水生和陆生taxa.LocationUSA。时间period 2014 -2019.Major taxa studiedBirds，哺乳动物，甲虫，蜱，鱼类，大型无脊椎动物和浮游动物。MethodsSpecies abundance and occupancy data were obtained from the National Ecological Observatory Network（氖）.对于三种不同的空间颗粒（即，地块、场地和域）。线性模型被用来探讨种间丰度-占有率关系的一致性。这些模型的斜率系数与时间和空间变量以及物种丰富度相关，同时在线性混合效应模型（LMM）框架中控制分类群。结果我们发现，对于我们研究的所有分类群，三种空间颗粒之间以及随着时间的推移，丰度-占有率关系呈正相关。然而，我们的线性模型具有较低的解释力，这表明，尽管关系一般，但很弱。丰度占用关系稍强，在最小的空间颗粒比在最大的空间颗粒，但随着时间的推移没有检测到任何类群的变化。最后，物种丰富度与这些relationships.Main conclusionsTogether的强度，我们的研究结果表明，积极的种间丰度占用关系是相当普遍的，但不能解释丰富的空间格局的实质性变化，以及其他因素，如物种性状和生态位，也可能影响这些关系。
AimAbundance–occupancy relationships posit that more locally abundant species occupy more sites than less abundant species. Although widely supported, the occurrence and detection of abundance–occupancy relationships is sensitive to sampling and detection processes. Data from large‐scale standardized sampling efforts are key to address abundance–occupancy relationships. We aimed to use such a dataset to evaluate the occurrence of abundance–occupancy relationships across different spatial grains and over time for aquatic and terrestrial taxa.LocationUSA.Time period2014–2019.Major taxa studiedBirds, mammals, beetles, ticks, fishes, macroinvertebrates and zooplankton.MethodsSpecies abundance and occupancy data were obtained from the National Ecological Observatory Network (NEON). Species mean abundance and occupancy (fraction of sampled locations that were occupied) were estimated for three different spatial grains (i.e., plot, site and domain) for all years sampled. Linear models were used to explore the consistency of interspecific abundance–occupancy relationships. The slope coefficients of these models were related to temporal and spatial variables and to species richness while controlling for taxa in a linear mixed‐effects model (LMM) framework.ResultsWe found evidence for positive abundance–occupancy relationships across the three spatial grains and over time for all taxa we studied. However, our linear models had low explanatory power, suggesting that relationships, although general, were weak. Abundance–occupancy relationships were slightly stronger at the smallest spatial grain than at the largest spatial grain, but showed no detectable change over time for any taxa. Finally, species richness was not associated with the strength of these relationships.Main conclusionsTogether, our results suggest that positive interspecific abundance–occupancy relationships are fairly general but are not capable of explaining substantial variation in spatial patterns of abundance, and that other factors, such as species traits and niche, are also likely to influence these relationships.
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