Diversity and ecological significance of modern fungal non-pollen palynomorphs in a European lowland forest ecosystem

Author:

Zimny Marcelina1ORCID,Czortek Patryk1,Jaroszewicz Bogdan1

Affiliation:

1. Białowieża Geobotanical Station, University of Warsaw, Poland

Abstract

Fungal non-pollen palynomorphs (fNPPs) are microscopic structures occurring in various sediments. In paleoecological studies, they can serve as reliable indicators of vegetation types, grazing activities, and human impact, enriching the interpretation of fossil data. This study explores the composition and taxonomic richness of fNPPs in 85 moss samples from a European lowland forest. We found rich fungal diversity, with 95 morphological types, predominantly saprotrophs, favoring specific substrates, like wood, decaying bark, herbaceous plant remains, litter, and freshwater habitats. Key taxa, such as type HdV-96A, and cf. Hypoxylon (EMA-24), were prevalent across different forest types, especially in deciduous forests. We identified two primary gradients of fNPP composition. The first axis delineated samples by taxonomic richness, Shannon index, and canopy openness, showing similarities among deciduous forests. The second axis ordered samples by the proportion of fNPPs, volume of stumps, coarse woody debris, and herbs pollen richness, highlighting their connections. Forest management intensity had minimal influence on fNPP composition, indicating consistent composition along both ordination axes. Forest type and herbs pollen richness, significantly affected the taxonomic richness and Shannon diversity of fNPPs. Deciduous forests exhibited higher fNPP richness, compared to coniferous forests, linked to increased herbs pollen richness. However, fNPPs decreased with increasing volume of stumps, coarse woody debris, and canopy openness, demonstrating the complexities of forest management’s influence on fungal diversity. This study pioneers fNPP investigation in an old-growth temperate forest ecosystem, emphasizing the interplay of forest characteristics, herbs diversity, and dead wood components in shaping their composition and richness. It also reveals differences in fNPP assemblages between deciduous and coniferous forests, underscoring the importance of forest type in shaping fungal diversity. These findings highlight the need for detailed studies on microhabitats, dead wood decomposition rates, and specific forest impacts to comprehensively understand forest ecosystem dynamics.

Publisher

SAGE Publications

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3