DOI: 10.3897/rio.12.e199260

Authors: Tom Breeze, Riccardo Bommarco, Alexandra-Maria Klein, Ignasi Bartomeus, David Kleijn, Jochen Kantelhardt, Maximilian Koppenberg, Miranda Meuwissen, Henrik Smith, Carla Stoyanova, Mark Brady, Florence Damiens, Teodor Metodiev, Jelena Meinila, Joanna Tusznio, Carlos Ruiz Carreira, Henning Schaak, Sebastian Bekker, Jake Bishop, Shon Ferguson, Klara Fischer, Małgorzata Grodzińska-Jurczak, Hajnalka Szentgyörgyi, Helena Hansson, Romina Rader, René Van Der Wal, Richard Walters, Xiu-shan Li, Zhang Ying, Elena Carp, Simon Potts

Abstract: VALOR is a multi-actor project that will develop a comprehensive systems based approach to develop a deeper understanding of the cascading impacts of pollinator shifts from flower to fork (and beyond). Our work spans seven localised “focal regions” across Europe, where we will explore the impacts of pollinator shifts on ecosystems, farm businesses and local communities through primary research and modelling. These will be supported by broader synthesis and modelling tasks to determine the impacts of pollinators on value chains, international trade and nutrition and highlight the risks to ecosystems and natural capital across Europe, under different co-developed future scenarios. VALOR aims to empower actors to better understand their relationship with pollinators and will produce a number of co-developed tools for landowners businesses and policymakers to better understand these risks and easily undertake their own studies by replicating our methods and employing our models. Throughout the project, VALOR will work through our existing networks of policy and business collaborators to maximise the engagement with our outcomes, datasets and tools, build synergies with the wider pollinator research community and effectively mainstream pollinators into decision-making at all levels throughout Europe.

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DOI: 10.3897/rio.12.e198587

Authors: Camille Musseau, Jessica Bathe-Peters, Jan Krzystolik, Jörn Geßner

Abstract: The Baltic sturgeon Acipenser oxyrinchus, once widespread in rivers draining to the Baltic Sea, was extirpated by overfishing and habitat degradation and is now the focus of a basin-wide restoration programme. Since 2006, more than seven million hatchery-reared juveniles have been released in Baltic rivers, yet the movements, habitat use and survival of stocked fish remain poorly quantified. HaffStör aims to close these knowledge gaps and to provide an operational basis for adaptive, cross-border management of the recovering population in the Oder River–Szczecin Lagoon system (Germany/Poland).The project combines movement ecology, conservation biology and social sciences in four interconnected work packages. First, we optimise rearing protocols, comparing juveniles produced under different degrees of environmental control (ambient vs. static recirculating aquaculture systems), coupled with behavioural experiments on habitat choice and anti-predator responses. Second, we release tagged juveniles in the Lower Oder and Szczecin Lagoon and track their movements using active and passive acoustic telemetry, complemented by habitat mapping and benthic sampling, to identify key migration routes, habitat utilisation and zones of overlap with human activities, mainly associated with fisheries and navigation. Third, we develop and test a standardised, cost-effective monitoring framework, based on passive gears, fishery-independent surveys and environmental DNA, aligned with Bern Convention guidelines and intended to be transferable to other Baltic catchments. Fourth, we establish cooperation with commercial fisheries through targeted outreach to initiate structured by-catch reporting, co-designed surveys and joint project activities.By integrating ecological and fishery data, HaffStör will deliver robust estimates of juvenile survival and mortality drivers, refine release and monitoring strategies and generate spatially-explicit assessments of by-catch risk. Beyond new scientific insights into Baltic sturgeon ecology, the project seeks to strengthen stewardship amongst local communities and practitioners and to support evidence-based, transnational governance for this flagship migratory species.

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DOI: 10.3897/rio.12.e202621

Authors: Mohammad Mahfuzur Rahman, James Ojiambo Were

Abstract: This policy brief examines the contribution of brick kilns to Dhaka’s severe air-pollution crisis and argues that persistent emissions reflect failures of governance, enforcement and regulatory coordination rather than a lack of technological alternatives. Drawing on recent epidemiological studies, atmospheric modelling and policy evidence from Bangladesh and across Asia, the brief analyses how seasonal brick production intensifies winter PM2.5 concentrations and contributes to major public-health and economic losses. Although Bangladesh has enacted ambitious environmental legislation, weak institutional capacity, fragmented oversight and entrenched political-economic incentives continue to undermine implementation. The brief evaluates three policy pathways: universal Zigzag 2.0 kiln conversion, substitution towards non-fired construction materials and enforcement intensification through satellite-based monitoring. It recommends a phased five-year national strategy integrating cleaner kiln technology, demand-side reform, targeted enforcement and regional airshed cooperation. Effective implementation could substantially reduce pollution exposure, improve life expectancy and strengthen long-term environmental governance in Bangladesh.

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DOI: 10.3897/rio.12.e193918

Authors: Erica Zaja, Will Brownlie, Rajabu Hamisi, Maja Arsic, Adelaide Asante, Hilary Barraclough, André Bationo, Martin Blackwell, Dana Cordell, James Elser, Oluwole Fatunbi, Kwame Frimpong, Elise Gallois, Enam Gbekor, Kailyn Harris-Gilliam, Philip Haygarth, Ludwig Hermann, Kenneth Irvine, Issy Lewis, Ning Liu, Vincent Logah, Kaushik Majumdar, Muneta Grace Manzeke-Kangara, Eric Mensah, Malika Mezeli, Michael Miyittah, Innocent Muhwezi, Frederick Otu-Larbi, Richard Padi, Kasper Reitzel, Seth Robinson, Collins Tay, Francis Tetteh, Louis Tetteh, Shamie Zingore, Bryan Spears

Abstract: Phosphorus sustains global food production and is, therefore, of crucial importance to human nutrition and health. However, its mismanagement can lead to water pollution and environmental degradation in addition to low crop yields. In many parts of sub-saharan Africa, phosphorus deficiency constrains agricultural productivity and exacerbates food insecurity. Despite these challenges, phosphorus remains a fragmented topic in global and African policy. To address these issues, the 8th Sustainable Phosphorus Summit (SPS8) was convened in Africa for the first time. SPS8 took place in Accra, Ghana, between 30th September and 3rd October 2025. The Summit was an international collaboration, with co-conveners from the Council for Scientific and Industrial Research (CSIR) – Ghana, the Forum for Agricultural Research in Africa (FARA), The UK Centre for Ecology & Hydrology West Africa Office, Lancaster University and Rothamsted Research. In this paper, we give a detailed overview of the key messages and insights that emerged from highlight talks, lectures, working groups and field trips. We also discuss and reflect on the challenges of delivering an inclusive summit, from designing solutions to benefit-sharing. SPS8 demonstrates that inclusive, cross-sector knowledge-exchange events are crucial to support and enable phosphorus sustainability on the continent of Africa and globally and to enable the next generation of interdisciplinary phosphorus researchers.

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DOI: 10.3897/arphapreprints.e182926

Authors: Richard Marijnissen, Dirk S. van Maren, Luis Garrote, David Santillan, Ana Iglesias, Subbiah Bharathi, Xavier Sánchez-Artús, Vicente Gracia, Manuel Espino, Agustín Sánchez-Arcilla, Luciana Villa Castrillon, Benjamin Jacob, Johannes Pein, Wei Chen, Joanna Staneva, Pushpa Dissanayake, Dennis Oberrecht, Andreas Wurpts, Reinier Schrijvershof, R.J.A van Weerdenburg, Frederica Zennaro, Fabienne Horneman, Elisa Furlan, Silvia Torresan, Andrea Critto, Christophe Briere, Julien Fornasari, Rémi Caillibotte, Claire Mahe, Alexis Beudin, Rosaria Ester Musumeci, Massimiliano Marino, Sofia Nasca, Ahmad Alkharoubi, Luca Cavallaro, Enrico Foti, Nikolay Valchev, Petya Eftimova, Elitsa Hineva, Nataliya Andreeva, Grzegorz Różyński, Morgane Jolivet, Thomas Faraon, Olivier Boutron, Mathis Cathala

Abstract: Within this portfolio of restoration interventions, we present a range of model-based projections assessing the impact of large-scale Nature-based Solutions (NbS) on enhancing Eco System Services (ESS) in various coastal systems. This deliverable applies these models to detail how these systems respond to climate change and nature-based interventions intended to mitigate climate change impacts under different Sea Level Rise (SLR) scenarios. The models range from hydro-morphological simulations of future conditions to a machinelearning approach, all aimed at demonstrating the ESS provided by restoration in the future.

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DOI: 10.3897/arphapreprints.e182685

Authors: Aafke Schipper

Abstract: The EU Biodiversity Strategy for 2030 aims to put biodiversity on the path to recovery by 2030. A key component of the Strategy is the development of a coherent Trans-European Nature Network (TEN-N), to increase the coherence of the existing network of Natura 2000 sites and other nationally designated protected areas by addressing gaps in the coverage of priority habitats and species. The NaturaConnect project supports the design of a TEN-N, amongst others by designing and developing a future-proof blueprint through spatial conservation prioritisation. In this context, it is key to consider multifunctionality, that is, to ensure that the TEN-N addresses not just ecological representativeness but also the ability of nature to meet societal needs or demands through the provisioning of ecosystem services (ES).The present deliverable of NaturaConnect (D4.2) provides a set of ES layers aligned with present and potential future land and climate conditions, designed for use in spatial conservation prioritisation. We generated layers for a selection of regulating and cultural ES, with a focus on climate change mitigation (carbon storage and sequestration) and adaptation (e.g., improving soil retention considering expected increases in the magnitude and frequency of heavy rainfall events), food security (crop pollination, pest control), as well as the capacity of nature to improve people’s mental and physical health by offering opportunities for recreation and experiencing nature. We quantified all ES based on common input data with regard to land systems and climate, to ensure compatibility. Where possible and relevant, we considered ES supply, demand and flow separately.We quantified carbon storage and sequestration according to a book-keeping approach, assigning typical values of the amounts of carbon stored (MgC/ha) and sequestred (MgC/ha/yr) to each land system. We considered only the supply of carbon storage and sequestration, reasoning that the demand for this service is global and considerably larger than the supply. The amounts of carbon stored and sequestered are based on values from the scientific literature and existing datasets which indicate how much carbon is stored and sequestered per land system, and how this would change if the land system underwent a transition (e.g. from forest to cropland). Output maps revealed that forests and wetlands, especially in northern Europe, are characterised by the highest carbon storage and sequestration rates. Croplands are characterised by negative sequestration rates, hence act as sources of emission.We quantified the supply of soil retention based on the ability of vegetation to prevent soil erosion induced by heavy rainfall events, using the universal soil loss equation (RUSLE) to assess soil erosion. Specifically, we quantified the soil retention service (t/ha/yr) based on how much soil loss is prevented by the current vegetation cover, defined per land system, as compared to a counterfactual situation without vegetation. We also quantified the potential additional prevention of soil loss (t/ha/yr) if the vegetation were restored from its current state to a maximum cover. We defined soil retention demand based on the amount of soil loss to be prevented in order to ensure that losses would not exceed the natural soil formation rate. Output maps revealed hotspots of actual and potential additional soil retention demand, supply and flow mainly in mountainous regions, reflecting the key role of terrain slope in determining erodibility as well as the importance of vegetation for reducing it.We modelled the supply of crop pollination based on the potential of pollinator habitat to provide pollinators and the demand based on the presence of nearby cropland in need of pollination. Using observational data from scientific literature and existing databases, we first established a quantitative relationship that estimates wild pollinator abundance in pollinator-dependent cropland (n/m2) based on various ecologically relevant covariates, including the proportion of pollinator habitat within 3 km from the cropland cell. We used this relationship to map pollinator abundance in croplands across Europe, which we subsequently attributed to the cells with pollinator habitat (i.e., the service-providing units) within 3 km from each focal cropland cell, to facilitate application of the model results in spatial conservation prioritisation. Output maps reveal high pollinator abundance values for habitat cells located in areas dominated by cropland, as these habitat cells serve multiple cropland cells, and low values when multiple habitat cells surround a single cropland cell.To assess forest recreational potential, we developed a spatial model based on people’s preferences for forests with different structural characteristics, expressed through the willingness-to-travel (WTT) indicator. Using data from a large-scale visual choice experiment conducted in 12 European countries, we estimated WTT as a function of forest management classes, combined with spatial data on canopy height and tree species diversity. The result is the first Europe-wide map of forest recreational potential, revealing particularly high values in regions with taller, more diverse, and structurally complex forests.We modelled landscape recreational potential based on the recreational opportunities associated with the land systems surrounding each grid cell. We quantify supply based on the number and diversity of land systems that provide recreational opportunities within a given distance from each focal grid cell, and the demand based on the number of potential beneficiaries within a certain distance. Well-supplied areas encompass, among others, the western Iberian peninsula (Portugal) and the Pyrenees, the Auvergne, Rhone-Alpes, and the Provence-Alpes-Cote d’Azur in France, Ireland, Scotland, the Alps and Dinarides as well as the Baltics (Estonia, Latvia), and large parts of the Scandinavian Peninsula and Finland. Demand is particularly high for the European megacities and the various conurbations and metropolitan areas.Finally, we modelled nine regulating and five cultural species-based ecosystem services provided by terrestrial vertebrate species, including, among others, carrion removal, control of pest species (bark beetles, mosquitoes) and evolutionary heritage. For each service, we modelled supply based on the number of specific vertebrate species able to provide a certain service and demand based on the land system in a grid cell assumed to be in need of the service. Resulting maps show distinct patterns for the different ES, revealing the richness of provider species in areas with demand for each service.The ES layers described in this report were primarily developed to support broad-scale spatial conservation or restoration prioritisation efforts, i.e., efforts to identify and rank planning units (in this case grid cells) based on features considered in need of conservation or restoration. In the NaturaConnect project, the ES layers will be used together with layers of other relevant variables, such as biodiversity features, habitat connectivity and the costs of conservation, to identify pan-European conservation priorities. Beyond NaturaConnect, we expect our layers to be useful in particular for national and sub-national governmental and non-state authorities responsible for land planning, as our maps can help in identifying sites where ES supply or flow are high (indicating a need for conservation) or where demand is high yet supply is low (indicating a need for restoration). This way, we expect the layers and underlying code to be useful for informing land management and conservation planning also beyond the project.

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DOI: 10.3897/arphapreprints.e180508

Authors: Christopher John Topping, Noa Simon Delso, James Henty Williams, Johan Axelman

Abstract: EU chemical regulation remains slow, costly, and prone to “ecological surprises” such as unforeseen negative impacts, delayed neonicotinoid bans and ongoing pollinatordecline. Current approaches create silos, overlook cumulative impacts, and trap decisions in binary “safe/unsafe” categories.A systems-first, tools-second approach can deliver faster, cheaper, and more effective decisions by prioritising simulation and systems understanding before developing regulatory tools forEnvironmental Risk Assessment (ERA). Horizon Europe’s PollinERA project demonstrates how this can work in practice: building a prototype One Systemworkflow with interoperable data and models for pollinator risk assessment; an approach that can be expanded to other environmental domains.

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DOI: 10.3897/rio.11.e176120

Authors: Christos Arvanitidis, Olga Ameixa, Alberto Basset, Eva Chatzinikolaou, Claudia Coman, Berta Companys, Francesco De Leo, Klaas Deneudt, Federico Drago, John Eriksson, Tiziana Ferrari, Teodor Georgiev, Giovanni Giuliano, Stefan Gruber, Jens Habermann, Katharina Heil, Tim Hubbard, Cristina Huertas Olivares, Georgios Kotoulas, Dimitris Koureas, Natalia Manola, Vanessa Marrocco, Nicolas Pade, Ana Portugal Melo, Antonello Provenzale, Fotis Psomopoulos, Niels Raes, Susie Robinson, Patrick Ruch, Dick Schaap, Adrian Stanica, Tassos Stavropoulos, Heliana Teixeira, Peter van Tienderen, Costas Tsigenopoulos, Robert Waterhouse, Giuseppe Aprea, Michel Boër, Ana Casino, Laurent Delauney, Jonathan Ewbank, Ana Lillebø, Michael Mirtl, Jana Pavlic-Zupanc, Lyubomir Penev, Jaume Piera, Paraskevi Pitta, Ingrid Puillat, David Richter, Diana Stepanyan, Anton Ussi, Jan Węsławski, Gabriela Zuquim

Abstract: The interdependence of human, animal, plant and ecosystem health necessitates systemic, cross-domain collaboration to address global challenges, such as emerging diseases, climate change and biodiversity severe change. Through the Crete Declaration, Europe’s (e-)infrastructures, organisations and projects that focus on the functioning of our biosphere commit to jointly advancing the One Health approach. In doing so, the signatories aim to strengthen Europe’s resilience and leadership through the sharing of data and expertise, the development of innovative solutions and the promotion of evidence-based policies.

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DOI: 10.3897/rio.11.e164067

Authors: Sara Klingenfuß, Manuel John, Tuulikki Halla, Theresa Klara Loch, Philipp Mack, Barbara Meyers, Ronja Mikoleit, Taru Peltola

Abstract: The forest understory plays a central role in ecological processes and human experiences of forests, yet it often remains overlooked in forest management and conservation. In this interdisciplinary workshop, researchers from Finland and Germany came together to explore the understory through multiple lenses—ecological, cultural, social, and sensory. The participants acknowledged and discussed diverse forms of knowledge related to the understory, from scientific to traditional and place-based, to better understand the many ways people relate to it. Through shared readings, discussion, and direct engagement in the forest, we reflected on how the understory shapes foraging practices, sense of place, human–nature relationships, and alternative forest economies. We discussed what it means to "know" the understory, who holds this knowledge, and how it influences forest governance. This report brings together the key themes, questions, and ideas that emerged, highlighting the understory not only as a biological layer, but as a space where ecological, cultural and political dimensions meet. In doing so, we aim to provoke rethinking dominant forest perspectives and encourage more inclusive and relational ways of valuing and managing European forests.

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DOI: 10.3897/arphapreprints.e167392

Authors: Anita Franco, Katie Smyth, Michael Elliott

Abstract: Marine biodiversity is adversely affected by many human activities and their pressures. As such, there is the need for a cause-consequence-response method to objectively address the risks associated with those adverse changes. Such a method is the ISO-accredited Bow-tie technique as an objective and structured approach giving the causes, preventative control measures, mitigation and compensation measures and consequences of changes to biodiversity. Here, the Bow-tie method underpinned by the cause-consequence-response DAPSI(W)R(M) framework was used and adapted to help managers map out risks to biodiversity requiring management of the human activities and their relevant pressures, in specific case study areas (termed Broad Belt Transects, BBTs). Instead of using restrictive proprietary software, a more-flexible template framework was developed in Microsoft PowerPoint to allow a broad user base. This employed standardised lists of elements (and further adapted during the application process) allowing the development of unique, but standardised and directly comparable Bow-ties for all BBTs. The methods of developing the template and standardised lists are described together with the techniques used to help quantify this usually qualitative approach. The successful application of the Bow-tie method in case studies from the European seas shows the adaptability of this approach in ways wider than the original policy-driven risk-assessment use. Although designed for European seas, the approach and standardised lists are sufficiently generic for adoption in wider areas worldwide.

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DOI: 10.3897/arphapreprints.e166451

Authors: Lorenzo Latini, Giorgio Massaro, Stefania Coppa, Jacopo Giampaoletti, Giuseppe de Lucia, Alessia Dinoi, Paolo Magni

Abstract: The Gulf of Oristano Area, located on the central-western coast of Sardinia (Italy, Mediterranean Sea), is a highly diverse and ecologically valuable region. This area features a mosaic of habitats, supports rich biodiversity, and sustains traditional fishing practices. It is also protected under various international and EU conservation frameworks. However, despite its ecological importance, the Gulf Area faces growing pressures from human activities such as overfishing, eutrophication, habitat loss, and the introduction of non-native species. This study applies a bow-tie risk analysis framework to identify key drivers, pressures, and consequences associated with three central ecological events: species decline and loss, habitat change, and increased competition with non-native species. Stakeholder consultations and standardized classification systems inform the assessment, highlighting the interplay between legal fishing, tourism, aquaculture, pollution, and infrastructure development. The analysis identifies both prevention and mitigation measures, such as spatial planning, environmental monitoring, citizen science, and sustainable tourism and fisheries initiatives. While the environmental regulation of the Gulf of Oristano Area provides a basis for ecosystem protection, persistent challenges – such as enforcement, fragmented governance, and low stakeholder engagement – hinder effectiveness. To ensure ecological integrity and socio-economic resilience in the central-western Sardinian coast, this study underscores the need for strengthened integrated coastal zone management, alignment with EU strategies, and investment in adaptive and participatory conservation approaches.

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DOI: 10.3897/rio.11.e156054

Authors: Mihael Ichim, Ruxandra Crețu, Valentin Grigoras, Madalina Popa, Ancuța Raclariu-Manolică, Camelia Stefanache

Abstract: Herbal food supplements produced from medicinal and aromatic plants (MAPs) are becoming increasingly popular to complement synthetic pharmaceuticals. This category of products is regulated under more lenient food product regulations rather than the stringent rules applicable to medicines. The effectiveness and safety of these products rely on various factors, including the varying phytochemical composition of the original plant material, potential adulteration, substitution and contamination from biological and chemical sources. The SAFEMAPS scientific research project aims to provide integrated analytical solutions that enhance the compliance and quality of food supplements derived from aromatic and medicinal plants. This project seeks to improve the safe use of these products by consumers, while promoting the sustainable exploitation of plant biodiversity. Within this project, an experimental model will be developed to assess the identity, authenticity, traceability and quality of herbal food supplements. This model includes analytical solutions that integrate phytochemical and molecular genetic analyses. The proposed solutions will prioritise the needs of the food supplements industry, particularly regarding the quality and compliance of herbal products sold in Romania and across the European single market. These solutions will also tackle various aspects of the supply chain, including growers or collectors of medicinal and aromatic plants, processors, importers and final consumers.

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DOI: 10.3897/arphapreprints.e148125

Authors: Serena Rasconi, Laura Garzoli, Ana Gavrilović

Abstract: Abstracts of talks presented at ParAqua Conference held in Dubrovnik (Croatia), 16-17 April 2024

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DOI: 10.3897/rio.10.e133454

Authors: Yann Hautier, Kathryn Barry, Mariet Hefting, Marijke van Kuijk, Edwin Pos, Betty Verduyn, Rola Johannes, George Kowalchuk, Merel Soons

Abstract: Extreme climate events such as floods and droughts are becoming increasingly frequent and intense across the world. Future climate scenarios predict both an increase in individual extreme events, as well as chronic changes in climatic seasonality. Yet, the combined and relative effects of these pressures on ecosystems remain unknown. Concurrently, human-induced ecological disruption is accelerating species extinction rates, which are estimated to be 100 to 1000 times greater than pre-human levels. This is alarming as greater biological diversity is thought to buffer ecosystem functioning against extreme climate events, thereby safeguarding the provisioning of essential ecological services that contribute to human well-being. However, how and to what extent biodiversity buffers ecosystems against climate variability remains unclear. We recently constructed experimental grassland communities in a mesocosm-based field design representing a realistic gradient of plant diversity. Both extreme events (drought and flood) and a change in seasonality of precipitation are manipulated in a full factorial design to quantify the effects of future seasonal shifts and extremes in precipitation. We will: 1) determine to what extent higher biological diversity ensures that grasslands can continue to provide multiple ecosystem services even in the context of climate change and 2) unravel the fundamental mechanisms by which this is achieved including species asynchrony and positive species interactions. Results of our experimental approach will advance our understanding of the buffering potential of plant diversity and contribute to the development of strategies for sustainable service provisioning of our ecosystems in the face of climate change.

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DOI: 10.3897/arphapreprints.e134026

Authors: Claudia Fornarini, Alessandra D'Alessio, Jeremy Dertien, Néstor Fernández, Francisco Moreira, Anandi Sarita Namasivayam, Louise O'Connor, Henrique Pereira, Peter Verburg, Carlo Rondinini

Abstract: A key goal of the EU Biodiversity Strategy for 2030 is the design of a connected Trans European Nature Network (TEN-N), that helps to build a coherent and resilient network of protected areas across Europe. The TEN-N will need to consider and integrate societal perspectives on future biodiversity protection in Europe, accounting for multiple values and perspectives of nature. The NaturaConnect project, through a process of co-design with stakeholders, is developing narratives on future nature protection in Europe using the Nature Futures Framework (NFF). In this framework. three value perspectives of nature are presented at each corner of a triangle: Nature for Nature, Nature as Culture, and Nature for Society. By using this framework, NaturaConnect aligns with global efforts on scenario development auspicated by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES). This report outlines the development of scenario narratives for Europe of the NaturaConnect project. The development of the narratives considered the global and European policy context as a starting point, and included a stakeholder engagement process conducted to elicit stakeholders' preferences and visions in relation to future nature conservation and management in Europe. These narratives present contrasting perspectives and priorities for seven themes: Protected areas, Connectivity and Restoration, Forestry, Freshwater ecosystems, Urban system, Agriculture, Energy. These topics are key to building a more positive future for nature and people. Besides specificities for each narrative, we also identify commonalities across the three perspectives, including macroeconomic trend assumptions, biodiversity strategic goals of the European Union and shared solutions that are necessary to achieve any positive nature future.

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DOI: 10.3897/rio.10.e125086

Authors: Bekir Afsar, Kyle Eyvindson, Tuomas Rossi, Martijn Versluijs, Otso Ovaskainen

Abstract: Forests are crucial in supporting biodiversity and providing ecosystem services. Understanding forest biodiversity dynamics under different management strategies and climate change scenarios is essential for effective conservation and management. This paper introduces the Forest Biodiversity Dynamics Prototype Digital Twin (pDT), integrating forest and biodiversity models to predict the effects of management options on forest ecosystems. The primary objective is to identify optimal management strategies that promote biodiversity, focusing on conservation and adaptation to different climate conditions. We start with the case of Finnish forests and bird species and plan to expand to include more European countries and a variety of species as the pDT is further developed.

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DOI: 10.3897/arphapreprints.e94590

Authors: Serena Rasconi, Hans-Peter Grossart, Alena Gsell, Bastiaan Willem Ibelings, Dedmer van de Waal, Ramsy Agha, Ariola Bacu, Maija Balode, Meryem Beklioğlu, Maja Berden Zrimec, Florina Botez, Tom Butler, Slawomir Cerbin, Angela Cortina, Michael Cunliffe, Thijs Frenken, Esther Garcés, Laura Gjyli, Yonatan Golan, Tiago Guerra, Ayis Iacovides, Antonio Idà, Maiko Kagami, Veljo Kisand, Jovica Leshoski, Pini Marco, Natasa Mazalica, Takeshi Miki, Maria Iasmina Moza, Sigrid Neuhauser, Deniz Özkundakci, Kristel Panksep, Suzana Patcheva, Branka Pestoric, Maya Petrova Stoyneva, Diogo Pinto, Juergen Polle, Carmen Postolache, Joaquín Pozo Dengra, Albert Reñé, Pavel Rychtecky, Dirk S. Schmeller, Bettina Scholz, Géza Selmeczy, Télesphore Sime-Ngando, Kálmán Tapolczai, Orhideja Tasevska, Ivana Trbojevic, Blagoy Uzunov, Silke Van den Wyngaert, Ellen van Donk, Marieke Vanthoor, Elizabeta Veljanoska Sarafiloska, Susie Wood, Petr Znachor

Abstract: Zoosporic parasites (i.e. fungi and fungi-like aquatic microorganisms) constitute important drivers of natural populations, causing severe host mortality. Economic impacts of parasitic diseases are notable in the microalgae biotech industry, affecting production of food ingredients, biofuels, pharma- and nutraceuticals.While scientific research on this topic is gaining traction by increasing studies elucidating the functional role of zoosporic parasites in natural ecosystems, we are currently lacking integrated and interdisciplinary efforts for effectively detecting and controlling parasites in the microalgae industry. To fill this gap we propose to establish an innovative, dynamic European network connecting scientists, industries and stakeholders to optimize information exchange, equalize access to resources and to develop a joint research agenda. ParAqua aims at compiling and making available all information on the occurrence of zoosporic parasites and their relationship with hosts, elucidate drivers and evaluate impacts of parasitism in natural and man-made aquatic environments. We aim to implement new tools for monitoring and prevention of infections, and to create protocols and a Decision Support Tool for detecting and controlling parasites in the microalgae biotech production. Applied knowledge on zoosporic parasites can feed back from industry to ecology, and we therefore will explore whether the developed tools can be applied for monitoring lakes and reservoirs. Short-Term Scientific Missions and Training Schools will be organised specifically for early stage scientists and managers – with a specific focus on ITC – with the aim to share and integrate both scientific and applied expertise and increase exchange between basic and applied researchers and stakeholders.

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DOI: 10.3897/rio.2.e11321

Authors: Florian Leese, Florian Altermatt, Agnès Bouchez, Torbjørn Ekrem, Daniel Hering, Kristian Meissner, Patricia Mergen, Jan Pawlowski, Jeremy Piggott, Frédéric Rimet, Dirk Steinke, Pierre Taberlet, Alexander Weigand, Kessy Abarenkov, Pedro Beja, Lieven Bervoets, Snaedís Björnsdóttir, Pieter Boets, Angela Boggero, Atle Bones, Ángel Borja, Kat Bruce, Vojislava Bursić, Jens Carlsson, Fedor Čiampor, Zuzana Čiamporová-Zatovičová, Eric Coissac, Filipe Costa, Marieta Costache, Simon Creer, Zoltán Csabai, Kristy Deiner, Ángel DelValls, Stina Drakare, Sofia Duarte, Tina Eleršek, Stefano Fazi, Cene Fišer, Jean-François Flot, Vera Fonseca, Diego Fontaneto, Michael Grabowski, Wolfram Graf, Jóhannes Guðbrandsson, Micaela Hellström, Yaron Hershkovitz, Peter Hollingsworth, Bella Japoshvili, John Jones, Maria Kahlert, Belma Kalamujic Stroil, Panagiotis Kasapidis, Martyn Kelly, Mary Kelly-Quinn, Emre Keskin, Urmas Kõljalg, Zrinka Ljubešić, Irena Maček, Elvira Mächler, Andrew Mahon, Marketa Marečková, Maja Mejdandzic, Georgina Mircheva, Matteo Montagna, Christian Moritz, Vallo Mulk, Andreja Naumoski, Ion Navodaru, Judit Padisák, Snæbjörn Pálsson, Kristel Panksep, Lyubomir Penev, Adam Petrusek, Martin Pfannkuchen, Craig Primmer, Baruch Rinkevich, Ana Rotter, Astrid Schmidt-Kloiber, Pedro Segurado, Arjen Speksnijder, Pavel Stoev, Malin Strand, Sigitas Šulčius, Per Sundberg, Michael Traugott, Costas Tsigenopoulos, Xavier Turon, Alice Valentini, Berry van der Hoorn, Gábor Várbíró, Marlen Vasquez Hadjilyra, Javier Viguri, Irma Vitonytė, Alfried Vogler, Trude Vrålstad, Wolfgang Wägele, Roman Wenne, Anne Winding, Guy Woodward, Bojana Zegura, Jonas Zimmermann

Abstract: The protection, preservation and restoration of aquatic ecosystems and their functions are of global importance. For European states it became legally binding mainly through the EU-Water Framework Directive (WFD). In order to assess the ecological status of a given water body, aquatic biodiversity data are obtained and compared to a reference water body. The quantified mismatch obtained determines the extent of potential management actions. The current approach to biodiversity assessment is based on morpho-taxonomy. This approach has many drawbacks such as being time consuming, limited in temporal and spatial resolution, and error-prone due to the varying individual taxonomic expertise of the analysts. Novel genomic tools can overcome many of the aforementioned problems and could complement or even replace traditional bioassessment. Yet, a plethora of approaches are independently developed in different institutions, thereby hampering any concerted routine application. The goal of this Action is to nucleate a group of researchers across disciplines with the task to identify gold-standard genomic tools and novel eco-genomic indices for routine application in biodiversity assessments of European fresh- and marine water bodies. Furthermore, DNAqua-Net will provide a platform for training of the next generation of European researchers preparing them for the new technologies. Jointly with water managers, politicians, and other stakeholders, the group will develop a conceptual framework for the standard application of eco-genomic tools as part of legally binding assessments.

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DOI: 10.3897/rio.2.e9232

Authors: Pekka Neittaanmäki, Timo Huttula, Juha Karvanen, Tom Frisk, Jouni Tuomisto, Antti Simola, Tero Tuovinen, Janne Ropponen

Abstract: Open data and models are becoming increasingly available, but there are not yet good methods and platforms to turn those into systematic evidence-based decision support. Unicorn will produce such an enviro­­nment based on existing theoretical and practical knowledge about decision support and models. This con­sortium possesses the necessary models, data, and skills to set up an environment and demonstrate its func­tionality and usefulness with several case studies related to the environmental issues, human health, and economy. The Unicorn environment will be built in a generic and systematic way so that it could even be­come an international standard for evidence-based decision support. Developing a technical environment or standard is not enough. Using the Unicorn environment is a large cul­­tural change for both researchers and decision makers, as the current decision support practices do not re­flect the principles of openness, criticism, or reuse. Therefore, this cultural change must be promoted by train­ing to use the environment, by informing the society about its possibilities, and solving a number of practi­cal and technical problems related to current practices in research institutes, ministries, and municipalities. We acknowledge these problems and offer solutions to them with an extensive interaction plan.

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