Eight years of ruin: the legacy of the Mariana dam disaster

Researchers explore the ongoing devastation caused by Brazil’s worst environmental disaster.

Eight years since the collapse of the Fundão tailings dam in Mariana, Brazil, researchers have highlighted ongoing environmental and social devastation caused by the disaster.

A paper published in our open-access journal Nature Conservation underscores the persistent and growing impacts of the collapse, which ranks as one of the world’s most significant environmental tragedies.

Several dead fish on a muddy river bank with a forest in the background.
Dead fish in Marliéria, Minas Gerais, Brazil, about 200 km downstream from the Fundão tailings dam. Photo credit: Elvira Nascimento.

Caused by the Samarco mining company, the 2015 collapse released approximately 50 million cubic meters of toxic mud, burying the village of Bento Rodrigues and severely contaminating over 600 kilometres of river channels and coastal habitats. More than 1 million people across 35 cities were affected, leading to 19 deaths, widespread health issues, and the displacement of hundreds of residents.

A village, destroyed by the Mariana dam disaster, covered in mud.
The village of Bento Rodrigues after the disaster. Photo credit: Rogério Alves/TV Senado.

According to researchers, the environmental damage has only intensified over the years. High levels of heavy metals continue to threaten human and wildlife health, with significant bioaccumulation observed in endangered species like the Franciscana dolphin. Additionally, the disaster caused the introduction of numerous invasive species, further destabilising the ecosystem.

The paper, led by Dr Cássio Cardoso Pereira and Fernando Goulart of Universidade Federal de Minas Gerais, criticises the slow and controversial response by the Renova Foundation, an entity created by the responsible companies to address the disaster’s aftermath. While some compensation and restoration efforts have been made, the researchers argue that these actions are insufficient and often inadequate.

A Brief History of: The Mariana Disaster by Plainly Difficult.

One of the most concerning findings, they say, is the ongoing risk posed by similar structures across Brazil, where hundreds of dams remain in poor condition. The study advocates for the replacement of these dangerous dams with safer alternatives like dry mining, which significantly reduces the risk of future collapses.

“Urgent, science-based public policies are needed that prioritise the restoration of the Rio Doce basin, in addition to comprehensive compensation for affected communities. To achieve this, we need collaborations involving local and government oversight and independent scientific expertise to prevent further ecological and human disasters.”

Dr Cássio Cardoso Pereira.
Read a guest blog post by Dr Cássio Cardoso Pereira exploring whether biodiversity loss is being overlooked because of climate change.

As the region continues to face the compounded effects of climate change, with increasing cyclones and heavy rains worsening the spread of pollutants, the paper reminds us that the legacy of the Fundão disaster is far from over.

Original source

Pereira CC, Fernandes S, Fernandes GW, Goulart FF (2024) Eight years after the Fundão tailings dam collapse: chaos on the muddy banks. Nature Conservation 56: 77-82. https://doi.org/10.3897/natureconservation.56.133441

***

Follow Nature Conservation on Facebook and X.

Integration of ecosystem services in urban planning tools can directly contribute to the sustainability of ecosystems

Integrated ecosystem services can be a potent tool to inform and guide spatial decision-making.

Guest blog post by Zeynep Türkay

Ecosystem services’ (ES) integration into global policies is widely recognized as a hope for environmental sustainability, as they provide a robust framework for representing natural values. The role of healthy ecosystems in combating climate change-related risks and ensuring the sustainability of ecosystem services that are critical for human-natural life is well understood, and in this context, the protection and sustainability of Integrated ES areas, which represent the highest ecological functional areas in this sense, need to be highlighted. Integrated ES can be a potent tool to inform and guide spatial decision-making. However, presently, there is a need to improve the content of related conventional tools on how to introduce and involve their roles in decision-making processes.

A map of Istanbul showing the integrated ecosystem services potential of the current situation.
A map of Istanbul showing the integrated ecosystem services potential of the current situation.

Our paper, published in the journal One Ecosystem, investigates the incorporation of this problem, underlines ES significance as the Integrated ES, and transfers this information into spatial decision-making. The content of the paper discusses the potential contributions and limitations of the integration. It provides solid suggestions on how Integrated ES can be operationalized in Istanbul’s high-level plans.

Research article:

Türkay Z, Tezer A (2024) Contribution of integrated ecosystem services to urban planning tools: Can it be more functional for the sustainability of ecosystems? One Ecosystem 9: e121553. https://doi.org/10.3897/oneeco.9.e121553

Moving towards a systems-based Environmental Risk Assessment for wild bees, butterflies, moths and hoverflies: Pensoft joins PollinERA

Pensoft will lead the communication, dissemination and exploitation activities of the Horizon Europe project, which aims to reverse pollinator population declines and reduce impacts of pesticides.

The European Green Deal, the EU biodiversity strategy, the EU zero pollution action plan, and the revised EU pollinators initiative all indicate the need to protect pollinators and address insect and pollinator declines.

Plant protection products (PPP), also known as pesticides, have been identified as one of the primary triggers of pollinator decline. However, significant knowledge gaps and critical procedural limitations to current pesticide risk assessment require attention before meaningful improvements can be realised. The functional group is currently represented by only one species, the honey bee, which does not necessarily share other species’ biological and ecological traits.

Coordinated by The Social-Ecological Systems Simulation (SESS) Centre, Aarhus University and Prof. Christopher J. Topping, PollinERA (Understanding pesticide-Pollinator interactions to support EU Environmental Risk Assessment and policy) aims to move the evaluation of the risk and impacts of pesticides and suggestions for mitigation beyond the current situation of assessing single pesticides in isolation on honey bees to an ecologically consistent assessment of effects on insect pollinators.

This will be achieved through the development of a new systems-based environmental risk assessment (ERA) scheme, tools and protocols for a broad range of toxicological testing, feeding to in silico models (QSARS, toxicokinetic/toxicodynamic, and ALMaSS agent-based population simulations). 

Using a strong stakeholder co-development approach, these models will be combined in a One System framework for risk assessment and policy evaluation including an international long-term monitoring scheme for pollinators and pesticides. 

The One System framework builds on the recent roadmap for action on the ERA of chemicals for insect pollinators, developed within the IPol‐ERA project, funded by the European Food Safety Authority (EFSA). The framework will expand the ERA tools currently used for honey bees to include wild bees, butterflies, moths and hoverflies.

With an overall goal of reversing pollinator population declines and reducing the harmful impacts of pesticides, for the next four years, PollinERA will follow four specific objectives:

  1. Fill ecotoxicological data gaps to enable realistic prediction of the source and routes of exposure and the impact of pesticides on pollinators and their sensitivity to individual pesticides and mixtures.
  2. Develop and test a co-monitoring scheme for pesticides and pollinators across European cropping systems and landscapes, developing risk indicators and exposure information.
  3. Develop models for predicting pesticide toxicological effects on pollinators for chemicals and organisms, improve toxicokinetic/toxicodynamic (TKTD) and population models, and predict environment fate.
  4. Develop a population-level systems-based approach to risk and policy assessment considering multiple stressors and long-term spatiotemporal dynamics at a landscape scale and generate an open database for pollinator/pesticide data and tools.
Between 17 and 18 January 2024, experts from various realms of knowledge – from pollinator ecology, pesticide exposure and toxicological testing, to stakeholder engagement and communications – gathered in Aarhus, Denmark, to officially launch PollinERA. The two-day event seeded fruitful discussions on the project’s specific objectives, mission, methodology, outcomes and expected results.

With more than 20 years of experience in science communication, Pensoft is leading Work Package 6: Communication, Dissemination and Exploitation, that will ensure the effective outreach of PollinERA to its multiple target audiences. Based on the tailor-made communication, dissemination, exploitation and engagement strategies, Pensoft will provide a recognisable visual identity of the project, along with a user-friendly website, social media profiles, promotional materials, newsletters, infographics and videos. Pensoft will also contribute to the stakeholder mapping process and the organisation of various workshops and events.

To support the proactive, open-science transfer of results and scientific achievements, two PollinERA topical collections of articles will be established in Pensoft’s Food and Ecological Systems Modelling Journal (FESMJ) and the Research Ideas and Outcomes (RIO) journal.

PollinERA’s coordinator Prof. Christopher J. Topping (The Social-Ecological Systems Simulation Centre, Aarhus University) gave a warm welcome during the kick-off meeting of the project in Aarhus, Denmark.

In a joint effort to maximise impact and ensure sustainability of results, PollinERA will unfold in close collaboration with the sister Horizon Europe-funded project WildPosh, where Pensoft is also leading the Communication, dissemination and exploitation work package. 

Coordinated by Prof. Denis Michez (University of Mons), WildPosh aims to significantly improve the evaluation of risk to pesticide exposure of wild pollinators, and enhance the sustainable health of pollinators and pollination services in Europe.

Collaboration mechanisms between the PollinERA and the WildPosh projects include joint communication activities and events, joint data management strategy and alignment of activities to solidify the quality of final outputs.

Prof. Denis Michez (University of Mons), the coordinator of PollinERA’s sister-project WildPosh, presented the missions, objectives and methods, as well as the similarities, differences and collaboration potential between the two projects at PollinERA’s kick-off meeting in Aarhus, Denmark.

“It is fantastic that the European Commission puts so much effort into preserving wild pollinators and the countless benefits they bring to our society! The One System framework will hopefully become a fundamental part for the environmental risk assessment of chemicals for insect pollinators. I am really looking forward to implementing this insightful project, in close collaboration with its sister project WildPosh, where Pensoft is leading the dissemination efforts as well.”

says Teodor Metodiev, Principal Investigator for Pensoft at both PollinERA and WildPosh.

The PollinERA consortium comprises partners from eight European countries that represent a diverse range of scientific disciplines spanning from pollinator ecology, pesticide exposure and toxicological testing, to stakeholder engagement and communications.


Consortium:
  1. Aarhus University
  2. Jagiellonian University
  3. Lund University
  4. University of Bologna
  5. Osnabrück University
  6. Institute of Nature Conservation of the Polish Academy of Sciences
  7. Mario Negri Institute for Pharmacological Research
  8. BeeLife European Beekeeping Coordination
  9. Swedish University of Agricultural Sciences
  10. Pensoft Publishers
  11. Zip Solutions

Stay up to date with the PollinERA project’s progress on X/Twitter (@pollinERA_eu) and LinkedIn (/pollinera-eu).

  

Assessment, monitoring, and mitigation of chemical stressors on the health of wild pollinators: Pensoft joins WildPosh

Pensoft is amongst the participants of a new Horizon Europe project aiming to better evaluate the risk to wild pollinators of pesticide exposure, enhancing their health & pollination services.

Wild fauna and flora are facing variable and challenging environmental disturbances. One of the animal groups that is most impacted by these disturbances are pollinators, which face multiple threats, driven to a huge extent by the spread of anthropogenic chemicals, such as pesticides. 

WildPosh (Pan-european assessment, monitoring, and mitigation of chemical stressors on the health of wild pollinators) is a multi-actor, transdisciplinary project whose overarching mission and ambition are to significantly improve the evaluation of the risk to wild pollinators of pesticide exposure, and enhance the sustainable health of pollinators and pollination services in Europe.

On 25 and 26 January 2024, project partners from across Europe met for the first time in Mons, Belgium and marked the beginning of the 4-year endeavour that is WildPosh. During the two days of the meeting, the partners had the chance to discuss objectives and strategies and plan their work ahead. 

This aligns with the objectives of the European Green Deal and EU biodiversity strategy for 2030, emphasising the need to reduce pollution and safeguard pollinators. WildPosh focuses on understanding the routes of chemical exposure, evaluating toxicological effects, and developing preventive measures. By addressing knowledge gaps in pesticide risk assessment for wild pollinators, the project contributes to broader efforts in biodiversity conservation.

During the kick-off meeting in Mons, WildPosh’s project coordinator Prof. Denis Michez (University of Mons, Belgium) gave an introductory presentation.

As a leader of Work Package #7: “Communication, knowledge exchange and impact”, Pensoft is dedicated to maximising the project’s impact by employing a mix of channels in order to inform stakeholders about the results from WildPosh and raise further public awareness of wild and managed bees’ health.

Pensoft is also tasked with creating and maintaining a clear and recognisable project brand, promotional materials, website, social network profiles, internal communication platform, and online libraries. Another key responsibility is the development, implementation and regular updates of the project’s communication, dissemination and exploitation plans, that WildPosh is set to follow for the next four years.

“It is very exciting to build on the recently concluded PoshBee project, which set out to provide a holistic understanding of how chemicals affect health in honey bees, bumble bees, and solitary bees, and reveal how stressors interact to threaten bee health. WildPosh will continue this insightful work by investigating these effects on wild pollinators, such as butterflies, hoverflies and wild bee species, with the ultimate goal of protecting these small heroes who benefit the well-being of our planet,”

says Teodor Metodiev, WildPosh Principal Investigator for Pensoft.

For the next four years, WildPosh will be working towards five core objectives: 

1) Determine the real-world agrochemical exposure profile of wild pollinators at landscape level within and among sites 

2) Characterise causal relationships between pesticides and pollinator health 

3) Build open database on pollinator traits/distribution and chemicals to define exposure and toxicity scenario

4) Propose new tools for risk assessment on wild pollinators

5) Drive policy and practice.


Consortium:

The consortium consists of 17 partners coming from 10 European countries. Together, they bring extensive experience in Research and Innovation projects conducted within the Horizon programmes, as well as excellent scientific knowledge of chemistry, modelling, nutritional ecology, proteomics, environmental chemistry and nutritional biology.

  1. University of Mons
  2. Pensoft Publishers
  3. Eesti Maaülikool (Estonian University of Life Sciences)
  4. BioPark Archamps
  5. French National Agency for Food, Environmental and Occupational Health & Safety
  6. French National Centre for Scientific Research
  7. Martin Luther University Halle-Wittenburg
  8. Albert Ludwigs University Freiburg
  9. UFZ Helmholtz Centre for Environmental Research
  10. University of Turin
  11. Italian National Institute of Health
  12. National Veterinary Research Institute – State Research Institute
  13. University of Novi Sad Faculty of Sciences
  14. University of Novi Sad, BioSense Institute-Research Institute for Information Technologies in Biosystems
  15. University of Murcia
  16. Royal Holloway and Bedford New College
  17. The University of Reading

Visit can follow WildPosh on X/Twitter (@WildPoshProject), Instagram (/wildposhproject) and Linkedin (/wildposh-eu)

Flooded cities: A flood-regulating ecosystem services assessment for heavy rainfalls in urban areas

Scientists from Germany developed a framework with indicator suggestions to quantify and compare flood-regulating ecosystem services supply and demand.

Extreme weather events – like heavy rainfall – are a major environmental risk. Only recently after the Ecosystem Services Partnership (ESP) 2022 Europe Conference on Crete (Greece) some conference attendees were able to directly experience the effects of heavy rainfall, when air traffic was stopped in Heraklion for many hours, streets were flooded, properties damaged, and even people died.

Heavy rainfall can occur anywhere and are usually highly localized. Cities are particularly vulnerable to pluvial flooding because of the high degree of surface sealing, the high population density and the high potential of socio-economic damage in urban areas. In this light, ecosystems are important natural flood-regulating elements that can relieve grey infrastructure such as sewer systems. They can buffer rain events and prevent flooding as their functions turn into a flood-regulating ecosystem service (ES) to protect society.

So far, flood-regulating ES supply and demand for heavy rainfall in urban areas have rarely been studied. Therefore, scientists from the Climate Service Center Germany and the Leibniz University Hannover (Germany) developed a framework with indicator suggestions to quantify and compare flood-regulating ES supply and demand. Interception by canopies and infiltration in the soil serve as essential indicators for urban flood-regulating ES supply. The indicators can be quantified based on the outputs of a hydrological model that has explicitly been developed for this study. The model is based on single, individual landscape elements. It considers vegetation-hydrological interaction, and 2D surface water routing. Social-economic indicators and the surface flooding indicate the related ES demand.

A flooded neighbourhood. Photo by U.S. Geological Survey

In their study, published in the journal One Ecosystem, they assessed the flood-regulating ES of an urban district in the City of Rostock (Germany) for a one-hour heavy rainfall event. They found the highest mean ES supply on greened areas of forests, woodlands and green areas, resulting in a supply surplus. Whereas, sealed areas (paved surface where water cannot infiltrate into the soil), such as settlements, urban dense areas, traffic areas and industry, showed an unmet demand resulting from both low supply and relatively high actual demand. The results indicated that vegetation plays an important part in flood regulation, if the soils are saturated or sealed and, thus, should be considered in urban flood-regulating ES assessments.

Budget of the flood-regulating ecosystem services supply and demand resulting in unmet demand and supply surplus.

Analysing the supply and demand for flood-regulating ES is particularly important for urban planning in order to identify ES supply-demand mismatches. Based on this information, adaptation measures such as Nature-based Solutions can be planned and their possible ES contributions can be quantified. Since heavy precipitation events are projected to become more frequent and intense in the future, the future functionality of current flood-regulating ES and the benefits of adaptation measures under changing climate conditions need to be assessed. This provides information about changing ES supply and the development of ES demand.

Research article:

Wübbelmann T, Bouwer LM, Förster K, Bender S, Burkhard B (2022) Urban ecosystems and heavy rainfall – A Flood Regulating Ecosystem Service modelling approach for extreme events on the local scale. One Ecosystem 7. https://doi.org/10.3897/oneeco.7.e87458

Follow One Ecosystem on Facebook and Twitter.

First discovery of microplastics from water trapped on plant leaves

“These phytotelmata are very small and have a short lifespan. The question is, therefore, how were they polluted with microplastics?”

Although they have not been around for long, microplastics have found their way to almost every ecosystem on the planet. They have been discovered in the soil, in rivers, in our food and bottled water, and even in the human body. Recently, a team of researchers found, for the first time, microplastics in water trapped in plant leaf axils.

The teasel Dipsacus.

Katarína Fogašová, Peter Manko, and Jozef Obona of the University of Prešov, Slovakia, initially set out to Eastern Slovakia to study the organisms living in the little water puddles forming in teasel leaf axils. 

Teasels of the genus Dipsacus have characteristic opposite leaves that grow on the stem above each other in several levels. As they clasp the stem, they form cup-like structures that collect water, known as telmata. 

“Teasel phytotelmata are a relatively common but overlooked aquatic microcosm with a very short-term occurrence of only 3 to 4 months.“

To their surprise, they found differently coloured fragments and fibers, some reaching 2.4 mm in length, which were identified as microplastics.

“These phytotelmata are very small and have a short lifespan,” the researchers write in their paper, which was published in the journal BioRisk. “The question is, therefore, how were they polluted with microplastics?”

Phytotelmata provided by teasel.

No other sources of contaminants were found in the studied area, so the fragments and fibers most likely came from polluted atmosphere, they suggest. Another theory is that snails may have transported them from the soil or from other plants, in or on their bodies. 

“The first finding of microplastics in small short-term water reservoirs created by plants is further evidence that contamination of this kind spreads through various pathways and probably no environment on Earth is safe, which of course makes our discovery quite disheartening,” the researchers say.

“On the other hand, the results of our research of teasel phytotelmata, as a very unusual and highly specific natural environment, offer many possibilities for use in researching the spatio-temporal characteristics of the spread of microplastic pollution and its potential impact on the plants themselves, as well as organisms bound to them by ecological relations.”

They suggest that, due to their abundance and theoretical ability to capture microplastics in several ways from the environment, teasel phytotelmata could be a good indicator of microplastic presence.

“Our publication therefore not only brings the first discovery of microplastic pollution of habitats of this type, but also the first proposal of a new approach to the use of teasel phytotelmata and similar micro-ecosystems provided by plants (or artificially created), as bioindicators of the presence of microplastics in the environment, possible sources and pathways of their spread through the environment and spatio-temporal changes in microplastic contamination.”

Research article:

Fogašová K, Manko P, Oboňa J (2022) The first evidence of microplastics in plant-formed fresh-water micro-ecosystems: Dipsacus teasel phytotelmata in Slovakia contaminated with MPs. BioRisk 18: 133-143. https://doi.org/10.3897/biorisk.18.87433

Images by Katarína Fogašová.

Follow BioRisk on Facebook and Twitter.

Novel research seeks to solve environmental challenges in BioRisk’s latest issue

The special issue features 35 studies presented at the International Seminar of Ecology 2021

Guest blog post by Prof. Stephka Chankova, PhD

The new special issue of BioRisk compiles materials presented at the International Seminar of Ecology – 2021. The multidisciplinary nature of modern ecology was demonstrated by the main topics of the Seminar: biodiversity and conservation biology, biotic and abiotic impact on the living nature, ecological risk and bioremediation, ecosystem research and services, landscape ecology, and ecological agriculture.

Research teams from various universities, institutes, organizations, and departments, both from Bulgaria and abroad, took part in the Seminar. Foreign participants included: Environmental Toxicology Research Unit (Egypt), Pesticide Chemistry Department, National Research Centre (Giza, Egypt); National Institute for Agrarian and Veterinary Research (Oeiras, Portugal), Centre for Ecology, Evolution and Environmental Changes (Lisbon, Portugal); Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences (Moscow, Russia).

Biorisk’s latest issue: Current trends of ecology

Some of the reports presented joint research of Bulgarian scientists and scientists from Germany, the Czech Republic, Lithuania, Romania, Slovenia, Spain, and the USA. After assessment by independent reviewers, the articles published in the journal cover the topics presented and discussed at the Seminar. 

A set of reports were focused on the anthropogenic and environmental impacts on the biota. Soil properties were shown as a factor that can modulate the effect of heavy metals, present in chronically contaminated soils. Different ap­proaches to overcome environmental pollution were presented and discussed: zeolites as detoxifying tools, microalgae for the treatment of contaminated water bodies, and a newly developed bio-fertilizer, based on activated sludge combined with a bacte­rial strain with detoxifying and plant growth-promoting properties. The clear need for the enlargement of existing monitoring program by including more bioindicators and markers was pointed out.

It was shown that, by using various markers for the evaluation of environmentally induced stress response at different levels (microbiological, molecular, biochemical), it is possible to gain insights of the organisms’ protection and the mechanisms involved in resistance formation. The contribution of increased DNA repair capacity and AOS to the development of environmental tolerance or adaptation was also shown.

Important results for understanding the processes of photoprotection in either cyanobacteria or algae, and higher plants were obtained by in vitro reconstitution of complexes of stress HliA protein with pigments. The crucial role of the cellular physiological state, as a critical factor in determining the resistance to environmental stress with Q cells was demonstrated.

Several papers were focused on the action of bioactive substances of plants origin. The bioactivity was shown to depend strongly on chemical composition. Origanum vulgare hirtum essential oil was promoted as a promising candidate for the purposes of “green” technologies. Analyzing secondary metabolites of plants, it was shown that their productivity in vitro is a dynamic process closely related to the plant growth and development, and is in close relation with the interactions of the plant with the environment.

Origanum vulgare hirtum. Photo by cultivar413 under a CC-BY 2.0 license

The influence of the agricultural system type on essential oil production and antioxidant activity of industrially-cultivated Rosa damascena in the Rose valley (Bulgaria) was reported, comparing organic vs conventional farming. The rose extracts from organic farming were shown to accumulate more phenolic compounds, corresponding to the higher antioxidant potential of organic roses.

A comparative study, based on official data from the statistics office of the EU and the Member countries, concerning viral infection levels in intensive and organic poultry farming, demonstrated that free-range production had a higher incidence of viral diseases with a high zoonotical potential.

Pollinators of Lavandula angustifolia, as an important factor for optimal production of lavender essential oil, were analyzed. It was concluded that, although lavender growers tend to place beehives in the fields for optimal essential oil production, it was crucial to preserve wild pollinators, as well.

Lavandula angustifolia inflorescence excluded from pollinators.

New data reported that essential oils and alkaloid-rich plant extracts had the strongest acetylcholinesterase inhibitory activity and could be proposed for further testing for insect control.

It was reported that the vegetation diversity of Bulgaria had still not been fully investigated. Grasslands, broad-leaved forests, and wetlands are the best investigated habitats, while data concerning ruderal, shrubland, fringe, and chasmophytic vegetation in Bulgaria are scarce.

Other important topics were reported and discussed in this session: the possibility of pest control using pteromalids as natural enemies of pests in various crops; the main reasons responsible for the population decrease of bumblebees – habitat destruction, loss of floral resources, emerging diseases, and increased use of pesticides (particularly neonicotinoids); the strong impact of temperature and wind on the distribution of zooplankton complexes in Mandra Reservoir, in Southeastern Bulgaria; an alternative approach for the ex-situ conservation of Stachys thracica based on in vitro shoot culture and its subsequent adaptation under ex vitro conditions.

Bombus hortorum/subterraneus collecting nectar in 1991, and B B. wurflenii/lapidarius worker robbing nectar of Gentiana asclepiadea in 2017

New information was presented concerning pre-monitoring geochemical research of river sediments in the area of Ada Tepe gold mining site (Eastern Rhodopes). The obtained results illustrate that the explored landscapes have been influenced by natural geochemical anomalies, as well as, impacted by human activity. The forests habitat diversity of Breznik Municipality was revealed, following the EUNIS Classification and initial data from the Ministry of Environment and Water and the Forestry Management Plans. It was shown that, in addition to the dominant species Quercus dalechampii, Quercus frainetto, Fagus sylvatica, Carpinus betulus, some artificial plantations with Pinus nigra and Pinus sylvestris were also present, as well as non-native species, such as Robinia pseudoacacia and Quercus rubra.

Models for Predicting Solution Properties and Solid-Liquid Equilibrium in Cesium Binary and Mixed Systems were created. The results are of great importance for the development of strategies and programs for nuclear waste geochemical storage. In conclusion, many results in different areas of ecology were presented in the Seminar, followed by interesting discussions. A lot of questions were answered, however many others remained open. A good platform for further discussion will be the next International Seminar of Ecology – 2022, entitled Actual Problems of Ecology.

One Ecosystem calls for papers that report ecosystem accounts

To help implement ecosystem accounts, the One Ecosystem journal provides a platform for scientists and statisticians to publish newly compiled accounting tables.

In March 2021, the UN Statistical Commission adopted the System of Environmental-Economic Accounting Ecosystem Accounting (SEEA EA).

SEEA EA is a spatially-based, integrated statistical framework for organising biophysical information about ecosystems, measuring ecosystem services, tracking changes in ecosystem extent and condition, valuing ecosystem services and assets and linking this information to measures of economic and human activity. 

To help implement ecosystem accounts, the One Ecosystem journal provides a platform for scientists and statisticians to publish newly compiled accounting tables. 

The “Ecosystem Accounts” permanent collection welcomes articles that describe and report ecosystem accounting tables, compiled following the standards set by the SEEA EA. The current version of the framework is fully described in United Nations et al. (2021). System of Environmental-Economic Accounting—Ecosystem Accounting (SEEA EA), available as a white cover publication, pre-edited text subject to official editing at: https://seea.un.org/ecosystem-accounting.

This collection does not accept research papers on ecosystem accounting that solely report new developments on accounting methods, such as new models for ecosystem services, new indicators for ecosystem condition or new techniques for monetary valuation of ecosystems. 

The inclusion of a compiled ecosystem accounting table is mandatory for this collection. Otherwise, papers will be diverted to the regular issue of One Ecosystem. In such cases, the authors may also choose to submit their contributions to another topical collection. 

Detailed instructions for authors

Submitting authors need to select One Ecosystem as a journal and “Ecosystem Accounting table” as an article template in ARPHA Writing Tool

Submissions to this collection shall respect the following requirements:

Introduction:

  • The introduction makes clear reference to the type (or types) of account(s) submitted, the accounting area, and the accounting period. The introduction should contain a clear reference to the SEEA EA. 
  • The following accounting tables can be published with data referring to a specific accounting area and for a given accounting period:
  • Ecosystem extent account – physical terms: Total extent of area of one or more ecosystem types 
  • Ecosystem condition account – physical terms: (Aggregated) data on selected ecosystem characteristics and optionally the distance from a reference condition.
  • Ecosystem services flow account – physical terms: Physical supply of final ecosystem services by ecosystem assets and the use of those services by economic units.
  • Ecosystem services flow account – monetary terms: The monetary estimate of final ecosystem services by ecosystem assets and the use of those services by economic units.
  • Monetary ecosystem asset account – monetary terms: Stocks and changes in stocks (additions and reductions) of ecosystem assets in monetary terms.

Data and methods

  • This section describes which typologies or classifications have been used to classify ecosystems, ecosystem condition indicators, ecosystem services, or economic sectors. Preference should be given to different typologies proposed by SEEA EA, but deviations or other typologies are acceptable as well. 
  • The section provides a list of all ecosystem types, variables, indicators, or economic sectors used in the accounting tables and it provides references to the data sources used to quantify them. 
  • Optionally, papers justify the use of variables and indicators making reference to specific selection criteria. 
  • For ecosystem service accounts, this section describes or refers to the methods used to quantify ecosystem services.
  • For monetary accounts, this section describes or refers to the methods used to assign monetary values to ecosystem services.
  • The use of supplementary materials is recommended in case the description of data and methods is too long. In that case, this section contains a summary of the data and methods. 

Accounting tables and results

  • This section presents the accounting table(s). Ideally, this section presents the most aggregated version of the accounting table(s), while detailed versions with a high number of rows and columns can be easily published as a spreadsheet in the supplement section of the paper.
  • Stylised versions of accounting tables are available in the SEEA EA guidelines. A stylized example for each ecosystem accounting table is available in MS Excel. It is highly recommended to follow these examples to the maximum possible extent. 
  • Graphs or maps that illustrate the accounting tables or that provide key results used to compile the accounting table can be published as well in this section. 

Discussion 

In this section, authors are invited to add at least one of the following topics:

  • A short interpretation of the results: are the reported data comparable to other published data on ecosystem extent, condition or services or do they deviate substantially. 
  • Critique or comments on the SEEA EA framework. Identify issues with application of the framework. Highlight areas for improvement or further research.
  • Demonstration of how the accounts have been or can be used to support policy and decision making or implementation. Particular cases of interest are (however, not restricted to) agricultural, forestry, fishery and biodiversity policies, biodiversity and ecosystem monitoring and reporting, ecosystem restoration projects, demonstrating values of ecosystems, or environmental impact assessments.

***

Visit One Ecosystem’s website and the collection’s webpage

Follow One Ecosystem on Twitter and Facebook.

Green backyards help increase urban climate resilience: Here is how

New study evaluates the effects of greenery on thermal comfort, biodiversity, carbon storage and social interactions.

Green spaces in cities have a number of positive effects: they’re good for our physical and mental health, they’re good for the environment, and they can even help fight off the effects of climate change.

To explore the impact of additional green structures in cities, Katja Schmidt and Ariane Walz, affiliated with the University of Potsdam, Germany, quantified their effects on different aspects such as thermal comfort, biodiversity, carbon storage and social interaction. Their study, published in the open-access, peer-reviewed journal One Ecosystem, combines knowledge from health research, ecology and socio-ecological research, and shows how the better we know a particular type of ecosystem, the better we can adapt to climate change.

Green residential courtyards in Potsdam. Photo by Jan Michalko, University of Potsdam

Pursuing a multi-method approach that ranged from local climate measurements to habitat and tree mapping, the authors compared four green residential courtyards in Potsdam. The spaces were similarly built, but had different ratios and sizes of features (lawns, flowerbeds, paths, playgrounds and allotments), as well as different tree and shrub population. 

While doing their research, Schmidt and Walz saw how even small differences in the green structure affect the provision of benefits, but one thing was clear: the greener courtyards yielded more benefits. Trees have the vital ability to cool down the environment and increase thermal comfort. Remarkably, the researchers report additional cooling effects of up to 11°C in the greener court yards. This means that residential green structures can prove of great value for human health during summertime heat, when asphalt and buildings make hot days even hotter. Considering the ageing demographic and the likely increase of heatwaves in the area, this is likely to have even greater health implications in the coming years. 

Microclimatic measurements in residential courtyards. Photo by Tobias Hopfgarten, University of Potsdam

Urban green spaces can also be an important factor in carbon storage, as urban soils and trees have the capacity to act as a sink for atmospheric carbon dioxide. The residential yards with more and larger trees, logically, have the power to store more carbon. This is where proper maintenance comes in: when yards are managed sustainably, trees live longer and can store more carbon.

“Considering the trend of increasing quantity and magnitude of extreme weather events and the vulnerability of urban areas, green spaces are known to provide great potential to increase urban climate resilience. Our work highlights the widespread positive effects of additional green structures in residential open spaces, a type of urban green space that is frequently understudied,” points out Dr. Schmidt.

As a conclusion, the researchers point out that if land owners and leaseholders receive incentives to commit to climate adaptation, and neighbourhoods come up with deliberate management strategies, these benefits could be further enhanced, contributing to a more sustainable urban development.

Research article:

Schmidt K, Walz A (2021) Ecosystem-based adaptation to climate change through residential urban green structures: co-benefits to thermal comfort, biodiversity, carbon storage and social interaction. One Ecosystem 6: e65706. https://doi.org/10.3897/oneeco.6.e65706

Extensive practical guide to DNA-based biodiversity assessment methods published as a ‘living’ document by DNAqua-Net COST Action

Between 2016 and 2021, over 500 researchers collaborated within the DNAqua-Net international network, funded by the European Union’s European Cooperation in Science and Technology programme (COST), with the goal to develop and advance biodiversity assessment methods based on analysis of DNA obtained from the environment (e.g. river water) or from unsorted collections of organisms. 

Such innovative methods are a real game changer when it comes to large-scale assessment of biodiversity and ecological monitoring, as collecting environmental samples that are sent to the lab for analysis is much cheaper, faster and non-invasive, compared with capturing and examining live organisms. However, large-scale adoption has been hindered by a lack of standardisation and official guidance. 

Recognising the urgent need to scale up ecological monitoring as we respond to the biodiversity and climate crises, the DNAqua-Net team published a guidance document for the implementation of DNA-based biomonitoring tools.

The guide considers four different types of samples: water, sediments, invertebrate collections and diatoms, and two primary analysis types: single species detection via qPCR and similar targeted methods; and assessment of biological communities via DNA metabarcoding. At each stage of the field and laboratory process the guide sets out the scientific consensus, as well as the choices that need to be made and the trade-offs they entail. In particular, the guide considers how the choices may be influenced by common practical constraints such as logistics, time and budget. Available in an Advanced Book format, the guidelines will be updated as the technology continues to evolve.

Leaders of DNAqua-Net are Prof. Dr. Florian Leese of the University of Duisburg-Essen (Germany) and Dr. Agnès Bouchez of the French National Institute for Agriculture, Food, and Environment (INRAE). The core writing team for the present guide book involves Dr. Micaela Hellström (MIX Research AB, Sweden), Dr. Kat Bruce (NatureMetrics Ltd., UK), Dr. Rosetta Blackman (University of Zurich and EAWAG, Switzerland), Dr. Sarah Bourlat (LIB/Museum Koenig, Germany), and Prof. Kristy Deiner (ETH Zurich and SimplexDNA AG, Switzerland).

“Back in 2016 we realised that all around the globe researchers are testing new eDNA methods, developing individual solutions and products. While this is excellent, we need to reach a consensus and provide this consensus to stakeholders from the applied sectors”, 

says Florian Leese.
This video was created as part of EU COST Action DNAqua-Net (CA15219) and shows how environmental DNA (eDNA) can be sampled and analysed from aquatic ecosystems. It shows the whole cycle from the start to final results. 
Credit: DNAqua-Net

The guide’s lead author Dr. Kat Bruce adds:

“The urgency of addressing the twin biodiversity and climate crises means that we need to accelerate the adoption of new technologies that can provide data and insights at large scales. In doing so, we walk a tricky line to agree on sufficiently standardised methods that can be usefully applied as soon as they add value, while still continuing to develop them further and innovate within the field. It was a daunting task to seek consensus from several hundred scientists working in a fast-moving field, but we found that our technology is based on a strong foundation of knowledge and there was a high level of agreement on the core principles – even if the details vary and different users make different choices depending on their environmental, financial or logistical constraints.”

Looking back on the last four years that culminated in the publication of a “living” research publication, Prof. Dr. Kristy Deiner says:

“The document took many twists and turns through more than ten versions and passionate discussions across many workshops and late night drinks. All in the days when we could linger at conferences without fear of the pandemic weighing on us. As we worked to find consensus, one thing was clear: we had a lot to say and a standard review paper was not going to cut it. With the knowledge and experience gathered across the DNAqua-Net, it made sense to not limit this flow of information, but rather to try and tackle it head on and use it to address the many questions we’ve all struggled with while developing DNA-based biodiversity survey methods.”

Now that the document – or at least its first version – is publicly available, the researchers are already planning for the next steps and challenges.

“The bottom line is we’ve come a long way in the last ten years. We have a buffet of methods for which many produce accurate, reliable and actionable data to the aid of biodiversity monitoring and conservation. While there is still much work to be done, the many unanswered questions are because the uptake is so broad. With this broad uptake comes novel challenges, but also new insights and a diversity of minds with new ideas to address them. As said this is planned to be a living document and we welcome continued inputs no matter how great or small,” says Deiner.

Dr. Micaela Hellström recalls:

“The book evolved over the four years of COST Action DNAqua-Net which made it possible for the many scientists and stakeholders involved to collaborate and exchange knowledge on an unprecedented scale. Our whole team is well aware of the urgent need to monitor biodiversity loss and to provide accurate species distribution information on large scales, to protect the species that are left. This was a strong driving force for all of us involved in the production of this document. We need consensus on how to coherently collect biodiversity data to fully understand changes in nature.”

“It was a great and intense experience to be a part of the five-person core writing team. In the months prior to submitting the document, we spent countless hours, weekends and late nights researching the field, communicating with researchers and stakeholders, and joining vivid Zoom discussions. As a result, the present book provides solid guidance on multiple eDNA monitoring methods that are – or will soon become – available as the field moves forward.” 

***

The DNAqua-Net team invites fellow researchers and practitioners to provide their feedback and personal contributions using the contacts below.

***

Original source:

Bruce K, Blackman R, Bourlat SJ, Hellström AM, Bakker J, Bista I, Bohmann K, Bouchez A, Brys R, Clark K, Elbrecht V, Fazi S, Fonseca V, Hänfling B, Leese F, Mächler E, Mahon AR, Meissner K, Panksep K, Pawlowski J, Schmidt Yáñez P, Seymour M, Thalinger B, Valentini A, Woodcock P, Traugott M, Vasselon V, Deiner K (2021) A practical guide to DNA-based methods for biodiversity assessment. Advanced Books. https://doi.org/10.3897/ab.e68634