Urban Biotic Interactions: The Foundation of Ecosystem Functions and Services

A special issue of Earth (ISSN 2673-4834).

Deadline for manuscript submissions: 31 March 2027 | Viewed by 313

Editors


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Department of Chemistry and Biology “Adolfo Zambelli”, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
Interests: urban biodiversity; ecology

Special Issue Information

Dear Colleagues,

This Special Issue, entitled "Urban Biotic Interactions: The Foundation of Ecosystem Functions and Services", aims to shed light on biodiversity in urban ecosystems, focusing on the ecological processes that connect the interactions between plants and microorganisms to ecosystem functions. Although these environments are increasingly subjected to anthropogenic pressures, they also represent unexpected reservoirs of biological and functional diversity. Specifically, urban ecosystems are significantly exposed to multiple anthropogenic stressors that can compromise above- and below-ground biodiversity, with the consequent disruption of their functioning. Moreover, the complex interactions between plants and soil microbial communities remain largely underexplored in urban environments, even though they regulate key ecological processes such as nutrient cycling, carbon sequestration and pollutant degradation. In this regard, gaining insights into the complex network of plant–microbiota interactions may reveal promising strategies and/or valuable approaches to preserve community biodiversity and ecosystem services. In this context, we welcome original research articles, reviews, short communications and perspectives that provide novel insights into the ecology, functioning, and service provision of plants and associated microbial communities in urban ecosystems, thus clarifying the paradox that emerges when dealing with urban biodiversity and its potential to provide ecosystem services. Studies integrating multi-trophic interactions, temporal and spatial scales or applied restoration approaches are particularly encouraged. Our vision is that this Special Issue will serve not only as a reference collection on basic ecology, but also as a fundamental advancement in our understanding of urban ecosystem functioning, essential for sustainable urban planning.

Prof. Dr. Daniela Baldantoni
Dr. Vincenzo Baldi
Guest Editors

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Keywords

  • urban biodiversity
  • urban ecosystems
  • plant community
  • soil microbial community
  • plant–microbiota interactions
  • ecosystem functions and services

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Published Papers (1 paper)

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Research

20 pages, 377 KB  
Article
Assessing the Functional Suitability of Sewage Sludge-Derived Technosols for the Ecological Rehabilitation of Degraded Areas
by Mattia Napoletano, Alessandro Bellino, Alessio Langella, Mariano Mercurio, Vincenzo Baldi, Antonio Ernesto Detta and Daniela Baldantoni
Earth 2026, 7(4), 138; https://doi.org/10.3390/earth7040138 - 19 Aug 2026
Viewed by 141
Abstract
Urban and industrial activities have lasting effects on Earth ecosystems, impairing their functionality. Technosols offer a sustainable solution for restoring degraded urban and industrial ecosystems. In a 30-day microcosm experiment, a mixture of six pioneer plant species was sown in three substrates: a [...] Read more.
Urban and industrial activities have lasting effects on Earth ecosystems, impairing their functionality. Technosols offer a sustainable solution for restoring degraded urban and industrial ecosystems. In a 30-day microcosm experiment, a mixture of six pioneer plant species was sown in three substrates: a sewage sludge-based Technosol (GF), a zeolite-enriched Technosol (GZ), and a commercial potting mix control (GC). The plant population dynamics, final performance, and substrate biochemical properties were monitored. A strong environmental filter allowed only two species (Bromus inermis Leyss. and Lolium perenne L.) to establish. Technosols exerted a demographic bottleneck, delaying emergence and reducing the total biomass relative to the control. Zeolites in the GZ Technosol mitigated this delay, accelerating early establishment due to their microporous structure and high cation exchange capacity. However, GZ caused the greatest reduction in individual biomass and functional plant performance index, corresponding to a microbial shift toward oxidative activity at the expense of hydrolytic nutrient mineralization. These results show that sewage sludge Technosols can initiate functional ecological succession. While zeolites positively affect germination, their microbial interaction suggests a temporary decoupling between the establishment speed and final productivity. Integrated monitoring of demographic and biochemical dynamics is therefore essential to optimize Technosol-based environmental restoration. Full article
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