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Title (Primary) Contrasting protist communities (Cercozoa: Rhizaria) in pristine and earthworm-invaded North American deciduous forests
Author Dumack, K.; Ferlian, O.; Morselli Gysi, D.; Degrune, F.; Jauss, R.-T.; Walden, S.; Öztoprak, H.; Wubet, T.; Bonkowski, M.; Eisenhauer, N.
Journal Biological Invasions
Year 2022
Department BZF; iDiv
Volume 24
Issue 5
Page From 1345
Page To 1357
Language englisch
Topic T5 Future Landscapes
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Keywords Biological invasion; Ecosystem engineer; Soil invertebrates; Soil microorganisms; Biodiversity change; Protists
Abstract Earthworms are considered ecosystem engineers due to their fundamental impact on soil structure, soil processes and on other soil biota. An invasion of non-native earthworm species has altered soils of North America since European settlement, a process currently expanding into still earthworm-free forest ecosystems due to continuous spread and increasing soil temperatures owing to climate change. Although earthworms are known to modify soil microbial diversity and activity, it is as yet unclear how eukaryote consumers in soil microbial food webs will be affected. Here, we investigated how earthworm invasion affects the diversity of Cercozoa, one of the most dominant protist taxa in soils. Although the composition of the native cercozoan community clearly shifted in response to earthworm invasion, the communities of the different forests showed distinct responses. We identified 39 operational taxonomic units (OTUs) exclusively indicating earthworm invasion, hinting at an earthworm-associated community of Cercozoa. In particular, Woronina pythii, a hyper-parasite of plant-parasitic Oomycota in American forests, increased strongly in the presence of invasive earthworms, indicating an influence of invasive earthworms on oomycete communities and potentially on forest health, which requires further research.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=25619
Dumack, K., Ferlian, O., Morselli Gysi, D., Degrune, F., Jauss, R.-T., Walden, S., Öztoprak, H., Wubet, T., Bonkowski, M., Eisenhauer, N. (2022):
Contrasting protist communities (Cercozoa: Rhizaria) in pristine and earthworm-invaded North American deciduous forests
Biol. Invasions 24 (5), 1345 - 1357