Species Distribution Models for Mesopelagic Mesozooplankton Community

IF 3.4 2区 环境科学与生态学 Q2 ECOLOGY
Yulia Egorova, Gabriel Reygondeau, William W. L. Cheung, Evgeny A. Pakhomov
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引用次数: 0

Abstract

AimWe aimed to enhance our understanding of the distribution of mesopelagic mesozooplankton (MM) using species distribution models, assess the performance of various modelling techniques, identify key environmental predictors for MM distribution and compute their habitat suitability indices.LocationOur study focused on the mesopelagic zone globally, with data analysed from different oceans.TaxonOur focus was primarily on mesopelagic mesozooplankton, gathering data on 861 different species from the Mesopelagic Mesozooplankton and Micronekton (MMM) Database.MethodsWe used an ensemble of species distribution models, applying 10 different modelling algorithms and three multi‐model ensemble approaches. We explored two important factors that can affect model performance: subsampling and the choice of background points. We also estimated the relative importance of various environmental conditions such as mixed layer depth, temperature, salinity, net primary productivity, euphotic zone depth and dissolved nitrate concentration on the distribution of these species.ResultsEuphotic zone depth, salinity and dissolved nitrate concentration were identified as the most important variables for explaining the distribution of mesopelagic mesozooplankton. The ensemble modelling results were robust in areas with abundant observational records, but high uncertainty was observed in data‐limited regions. We found a patchy habitat suitability map for zooplankton when modelled within their native range, largely due to uneven sampling. Unrestricted range models yielded smoother patterns but could inaccurately project species in areas where they do not occur.Main ConclusionsOur study highlights the need for increased sampling effort in data‐limited regions to improve the accuracy of mesopelagic species distribution models. Despite some inaccuracies, unrestricted range models, assuming ecological equivalence (where different species occupying a similar ecological niche in different geographical regions or different ecosystems exhibit similar adaptations and behaviours), provide a reasonable comparison for habitat suitability maps and model performance. It also confirms the significant impact of certain environmental conditions on mesozooplankton distribution.
中上层中浮游生物群落的物种分布模型
目的我们旨在利用物种分布模型加深对中深海中层浮游动物(MM)分布的了解,评估各种建模技术的性能,确定中深海中层浮游动物分布的关键环境预测因子,并计算其生境适宜性指数。分类群我们的研究重点主要是中下层中浮游生物,从中下层中浮游生物和微小浮游生物(MMM)数据库中收集了 861 个不同物种的数据。方法我们使用了物种分布模型组合,应用了 10 种不同的建模算法和 3 种多模型组合方法。我们探讨了影响模型性能的两个重要因素:子取样和背景点的选择。我们还估算了各种环境条件(如混合层深度、温度、盐度、净初级生产力、透光层深度和溶解硝酸盐浓度)对这些物种分布的相对重要性。在观测记录丰富的地区,集合建模结果是可靠的,但在数据有限的地区,不确定性很高。我们发现,在浮游动物的原生地范围内建立模型时,浮游动物的栖息地适宜性分布图很不均匀,这主要是由于取样不均造成的。主要结论:我们的研究突出表明,需要在数据有限的地区加大取样力度,以提高中上层物种分布模型的准确性。尽管存在一些不准确之处,但假设生态等同性(即在不同地理区域或不同生态系统中占据相似生态位的不同物种表现出相似的适应性和行为)的无限制分布区模型为栖息地适宜性地图和模型性能提供了合理的比较。这也证实了某些环境条件对中生浮游生物分布的重大影响。
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来源期刊
Journal of Biogeography
Journal of Biogeography 环境科学-生态学
CiteScore
7.70
自引率
5.10%
发文量
203
审稿时长
2.2 months
期刊介绍: Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.
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