Uniqueness of tree stand composition and soil microbial communities are related across urban spruce-dominated forests

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(8)

Published: Aug. 3, 2024

Abstract Context Urban forest soils represent significant reservoirs of biodiversity in cities. Retaining this diversity under urban land-use change requires understanding on how species richness, community assembly and uniqueness assemblages are related to local characteristics surrounding landscape structure. Objectives Our aim was assess the significance relative importance logging history, tree composition urbanization shaping soil microbial communities across spruce-dominated landscapes. We investigated responses from three complementary viewpoints: diversity, patterns uniqueness. Methods collected bacterial fungal metabarcoding data 73 sites distributed centers southern Finland. these measurements intensity, degree urbanization. Results Logging affected site-scale but effects varied between groups. Only intensity had a imprint assembly, effect restricted bacteria. Relative at landscape-scale coupled with all groups, further by saprotrophic fungi ectomycorrhizal fungi. Conclusions In context forests, locally diverse stands not necessarily same as those that contribute most diversity. Identifying preserving contrasting stand structures, which support distinctive assemblages, may be winning strategy maintaining wide range

Language: Английский

---

Urbanization impoverishes taxonomic but not functional diversity of the gut microbiota in a forest specialist ground beetle, Carabus convexus

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Oct. 26, 2024

Language: Английский

---

Urbanization and fragmentation interact to drive mutualism breakdown and the rise of unstable pathogenic communities in forest soil

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: May 16, 2023

Abstract Temperate forests are particularly threatened by urbanization and fragmentation, with over 20% (120lJ000 km 2 ) of recently urbanized land in the U.S. subsuming natural forests. We leveraged a unique, well-characterized urban-to-rural forest edge-to-interior gradient to identify combined impact these two use changes - fragmentation on soil microbial community native, remnant found evidence mutualism breakdown between trees their fungal root mutualists (ectomycorrhizal (ECM) fungi) urbanization, where ECM fungi colonized fewer tree roots had less connectivity microbiome networks urban compared rural However, did not reduce relative abundance soils; instead, alone led strong reductions abundance. At edges, were replaced plant animal pathogens, as well copiotrophic, xenobiotics-degrading, nitrogen-cycling bacteria, including nitrifiers denitrifiers. Urbanization interacted generate “suites” microbes, interior harboring highly homogenized microbiomes, while edge microbiomes more heterogeneous stable, showing increased vulnerability low moisture. When scaled regional level, we that soils projected harbor high abundances pathogens denitrifying even areas, due extreme, widespread fragmentation. Our results highlight potential for dysfunction greenhouse gas production temperate regions subsumed expansion, both now future. Significance Statement increasingly altering Earth’s ecosystems, yet effects crucial health climate regulation, remain unclear. data indicate that, forested land, combined, compounding stressors reshape ways could lead pathogen infections plants animals, higher rates N loss denitrification, possibility symbiont extinctions. By identifying specific environmental shifts, our analysis can be used inform development management plans mitigate impacts sustain quality ecosystem services native provide society coming decades. Classification Biological Sciences/Ecology

Language: Английский

---

Urban soil microbiome: Activity, diversity and functioning

Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 480 - 493

Published: Jan. 1, 2023

Language: Английский

---

Changes in Soil Fungal Diversity and Composition along a Rural–Urban Gradient

Published: Sept. 19, 2023

The functioning of forest ecosystems depends on the taxonomic and ecological diversity soil fungi. Urbanization is increasing worldwide regarded a major driver environmental change altering local species assemblages in urban forest. We investigated whether degree urbanization characteristics affect fungal community 20 beech forests located along rural–urban gradient city Basel its suburbs (Switzerland). analyzed their communities by DNA metabarcoding rDNA ITS2 region related these data to vegetation properties. number OTUs examined ranged from 170 303. Richness, evenness were all significantly affected urbanization, but different ways. OTU richness was highest areas with low lowest rural areas. In contrast, increased urbanization. Different phyla guilds showed distinct patterns relative abundance rural-urban gradient. reduced symbiotrophic fungi, that saprotrophic pathotrophic Our results show alters community, which turn can lead changes ecosystems.

Language: Английский

---