联合物种分布模型揭示了分类群对潜在人为改变的敏感性

IF 1.7 4区 环境科学与生态学 Q3 ECOLOGY
Freshwater Science Pub Date : 2023-06-13 DOI:10.1086/726283
D. Kopp, J. Stoddard, R. Hill, Jessie M. Doyle, P. Kaufmann, A. Herlihy, S. Paulsen
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引用次数: 1

摘要

分类学与环境的关系可以阐明一个分类单元对特定环境条件的耐受性或敏感性。我们使用联合物种分布建模框架来量化美国邻近溪流和河流中约1700个底栖大型无脊椎动物组合与易受人类变化影响的几个环境梯度(如营养物质、盐度、物理栖息地和气候)之间的关系。我们发现,实际存在分类单元的采样单元的预测发生概率比没有出现分类单元的样本单元的预测出现概率大0.15至0.24,并且相对较大的百分比(32-58%)对基质直径、夏季平均气温或总磷的梯度有响应。在组合水平上,根据生态区的不同,属的丰富度可能会随着环境梯度变化多达5到17个分类群。通常,属丰富度的最大变化与沉积物直径有关。我们还调查了一系列特征(即紧贴者、刮擦者、耐污染性和热最优)是否与一个属与环境梯度的关联有关,并发现一些特征与一个生物在一个环境梯度上的出现呈正相关,但与另一个环境梯度上的发生负相关。例如,在几个生态区,热偏好与夏季平均气温呈正相关,但与营养物浓度呈负相关。总之,我们的研究结果展示了一种建模生物组合的多元方法,该方法可以整合生物监测程序常规收集的多个信息来源(即环境因素、生物特征、系统发育关系和共现)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Joint species distribution models reveal taxon-specific sensitivities to potential anthropogenic alteration
Taxon–environment relationships can elucidate a taxon’s tolerance or sensitivity to specific environmental conditions. We use a joint species distribution modeling framework to quantify relationships between ∼1700 benthic macroinvertebrate assemblages in streams and rivers across the contiguous United States and several environmental gradients that are susceptible to human alteration (e.g., nutrients, salinity, physical habitat, and climate). We found that the predicted occurrence probability for sampling units where a taxon actually occurs was 0.15 to 0.24 greater than the predicted occurrence probability for sampling units where a taxon does not occur, and a relatively large percentage (32–58%) responded to gradients of substrate diameter, mean summer air temperature, or total P. At the assemblage level, genus richness could change along environmental gradients by as many as 5 to 17 taxa depending on the ecoregion. Often, the largest change in genus richness was associated with sediment diameter. We also investigated whether a suite of traits (i.e., clinger, scraper, pollution tolerance, and thermal optima) were related to a genus’ association with an environmental gradient and found that some traits are positively related to an organism’s occurrence along one environmental gradient but negatively related to its occurrence along another. For example, in several ecoregions, thermal preference was positively related to mean summer air temperature but negatively related to nutrient concentrations. Collectively, our results showcase a multivariate approach for modeling biotic assemblages that can integrate multiple sources of information (i.e., environmental factors, biological traits, phylogenetic relationships, and co-occurrences) that are routinely collected by biomonitoring programs.
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来源期刊
Freshwater Science
Freshwater Science ECOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
4.10
自引率
0.00%
发文量
49
审稿时长
6-12 weeks
期刊介绍: Freshwater Science (FWS) publishes articles that advance understanding and environmental stewardship of all types of inland aquatic ecosystems (lakes, rivers, streams, reservoirs, subterranean, and estuaries) and ecosystems at the interface between aquatic and terrestrial habitats (wetlands, riparian areas, and floodplains). The journal regularly features papers on a wide range of topics, including physical, chemical, and biological properties of lentic and lotic habitats; ecosystem processes; structure and dynamics of populations, communities, and ecosystems; ecology, systematics, and genetics of freshwater organisms, from bacteria to vertebrates; linkages between freshwater and other ecosystems and between freshwater ecology and other aquatic sciences; bioassessment, conservation, and restoration; environmental management; and new or novel methods for basic or applied research.
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