Department Aquatic Ecology

News 2022

November 7, 2022 –

Terrestrial and aquatic food webs respond differently to changes in the environment. Understanding these differences is fundamental to identifying the species most important to an ecosystem and to effectively protecting...

Terrestrial and aquatic food webs respond differently to changes in the environment. Understanding these differences is fundamental to identifying the species most important to an ecosystem and to effectively protecting biodiversity. This is shown by a study led by the research institutes Eawag and WSL and published in the journal Nature Communications.

Read more
October 10, 2022 –

Nature conservation pays off: amphibians benefit from new ponds - despite many causes of endangerment that still affect them. This is what researchers from WSL and Eawag found in a joint study using data from amphibian monitoring...

Nature conservation pays off: amphibians benefit from new ponds - despite many causes of endangerment that still affect them. This is what researchers from WSL and Eawag found in a joint study using data from amphibian monitoring in the canton of Aargau. The study was published in the scientific journal PNAS.

Read more
October 7, 2022 –

A high fraction of the endemic biodiversity of the Alps is very old. The endemics – species found only in a confined area – have developed over the past millions of years during the cycles of glacial and interglacial periods or...

A high fraction of the endemic biodiversity of the Alps is very old. The endemics – species found only in a confined area – have developed over the past millions of years during the cycles of glacial and interglacial periods or even before these cycles began. Fish, however, are an exception: most endemic fish species emerged only after the end of the last ice age about 15,000 years ago.

Read more
September 23, 2022 –

Insects that live entirely or partly in freshwater have a much lower proportion of invasive species than insects that live on land. This is shown in a study by the Swiss Federal Institute for Forest, Snow and Landscape Research...

Insects that live entirely or partly in freshwater have a much lower proportion of invasive species than insects that live on land. This is shown in a study by the Swiss Federal Institute for Forest, Snow and Landscape Research WSL in collaboration with the Swiss Federal Institute of Aquatic Science and Technology Eawag and an international team of researchers.

Read more
August 24, 2022 –

Of over a thousand lakes studied worldwide, about one in ten shows strange behaviour. In general, there is an increasing tendency for aquatic ecosystems to tip over. The ecological stability of lakes is decreasing, especially in...

Of over a thousand lakes studied worldwide, about one in ten shows strange behaviour. In general, there is an increasing tendency for aquatic ecosystems to tip over. The ecological stability of lakes is decreasing, especially in regions with low GDP and large human populations.

Read more
June 27, 2022 –

A facility with experimental ponds for field trials is located on the Eawag site in Dübendorf. The current experiment is investigating how the water lily aphid - a herbivore that lives both on land and on water - influences the...

A facility with experimental ponds for field trials is located on the Eawag site in Dübendorf. The current experiment is investigating how the water lily aphid - a herbivore that lives both on land and on water - influences the development of the biocoenosis in water bodies.

Read more
June 23, 2022 –

Lake Greifensee is almost on Eawag’s “doorstep” and is therefore used extensively for its water research. Last Friday, interested visitors learned about how the researchers work and what they have discovered about the lake during...

Lake Greifensee is almost on Eawag’s “doorstep” and is therefore used extensively for its water research. Last Friday, interested visitors learned about how the researchers work and what they have discovered about the lake during an enjoyable boat trip. There will be another opportunity for this in autumn.

Read more
June 16, 2022 –

It is no secret that climate change has a serious impact on the quality and ecology of aquatic environments. Researchers at Eawag have revealed that human responses to climate change are just as impactful on our water systems –...

It is no secret that climate change has a serious impact on the quality and ecology of aquatic environments. Researchers at Eawag have revealed that human responses to climate change are just as impactful on our water systems – for example, in the areas of agriculture and hydropower.

Read more
June 14, 2022 –

In the future, drones could open up new possibilities for taking water samples fully automatically in remote areas. To this end, Eawag researchers tested a drone model developed at Empa and Imperial College.

In the future, drones could open up new possibilities for taking water samples fully automatically in remote areas. To this end, Eawag researchers tested a drone model developed at Empa and Imperial College.

Read more
April 11, 2022 –

Monitoring freshwater ecosystems by means of environmental DNA methods offers new opportunities for detecting invasive species. An Eawag study has shown that an invasive jellyfish is more widespread in Switzerland than previously...

Monitoring freshwater ecosystems by means of environmental DNA methods offers new opportunities for detecting invasive species. An Eawag study has shown that an invasive jellyfish is more widespread in Switzerland than previously thought.

Read more
April 7, 2022 –

A new study has shown how fish influence oceans’ ecosystems in coastal regions, revealing for the first time the role they play in distributing heat, nutrients and oxygen that keep the system functioning.

A new study has shown how fish influence oceans’ ecosystems in coastal regions, revealing for the first time the role they play in distributing heat, nutrients and oxygen that keep the system functioning.

Read more
March 29, 2022 –

Artificial floods mimick natural flows to mobilise and transport sediment downstream, reshape the river and reinstate important habitats for native aquatic insects and fish. Improved outcomes can occur when these artificial floods...

Artificial floods mimick natural flows to mobilise and transport sediment downstream, reshape the river and reinstate important habitats for native aquatic insects and fish. Improved outcomes can occur when these artificial floods converge with natural flows and sediment delivery from unregulated tributary streams further down the valley.

Read more
March 24, 2022 –

New research findings, and a resulting fact sheet, provide insights into the problematic spread of the invasive quagga mussel in Switzerland. The authors of the fact sheet are concerned that the aggressive spread of this mussel...

New research findings, and a resulting fact sheet, provide insights into the problematic spread of the invasive quagga mussel in Switzerland. The authors of the fact sheet are concerned that the aggressive spread of this mussel species will have a substantial detrimental effect on lake ecosystems.

Read more
March 23, 2022 –

Among aquatic insects in Swiss streams, those species that like it warm and can cope well with pesticide exposure are on the rise. This is shown by a joint study by WSL and Eawag using data from biodiversity monitoring between...

Among aquatic insects in Swiss streams, those species that like it warm and can cope well with pesticide exposure are on the rise. This is shown by a joint study by WSL and Eawag using data from biodiversity monitoring between 2010 and 2019. The results indicate a possible influence of climate change.

Read more
March 1, 2022 –

The use of lake and river water to generate heat and cold is constantly increasing. The potential is enormous. Nevertheless, negative impacts on aquatic ecosystems must be avoided. A fact sheet from Eawag lists the key points in...

The use of lake and river water to generate heat and cold is constantly increasing. The potential is enormous. Nevertheless, negative impacts on aquatic ecosystems must be avoided. A fact sheet from Eawag lists the key points in this regard.

Read more
February 17, 2022 –

Often overlooked until now: symbioses could be a driving force for the emergence of biodiversity. A case where bacteria live in aphids shows that this can even have practical implications for biological pest control.

Often overlooked until now: symbioses could be a driving force for the emergence of biodiversity. A case where bacteria live in aphids shows that this can even have practical implications for biological pest control.

Read more
February 15, 2022 –

The buffet of healthy insects starts earlier, is no longer as varied, and is only half as plentiful as it once was. This is the situation faced by insectivorous birds at Northern Temperate latitudes, such as Switzerland, during...

The buffet of healthy insects starts earlier, is no longer as varied, and is only half as plentiful as it once was. This is the situation faced by insectivorous birds at Northern Temperate latitudes, such as Switzerland, during the breeding season. Ryan Shipley from the Eawag water research institute, has been investigating how climate change affects the timing and quality of the food supply for breeding birds.

Read more

2021

December 9, 2021 –

In the "Projet Lac" research project, 35 lakes in the Alpine region were systematically examined for their fish populations for the first time: In Switzerland alone, 106 fish species were detected. With almost 20 percent of all...

In the "Projet Lac" research project, 35 lakes in the Alpine region were systematically examined for their fish populations for the first time: In Switzerland alone, 106 fish species were detected. With almost 20 percent of all known fish species in Europe, Switzerland is one of the hotspots for fish species diversity. The results are now the basis for measures for sustainable fishing and the protection of this still preserved diversity.

Read more
December 8, 2021 –

It makes sense to study land and water habitats together, according to the initial findings of the Blue-Green Biodiversity initiative.

It makes sense to study land and water habitats together, according to the initial findings of the Blue-Green Biodiversity initiative.

Read more
December 7, 2021 –

With around 200 pictures and texts, the new Water Timeline takes you through 200 years of the eventful history of Swiss water protection. It aims to show how shifts towards more sustainable management of natural resources can be...

With around 200 pictures and texts, the new Water Timeline takes you through 200 years of the eventful history of Swiss water protection. It aims to show how shifts towards more sustainable management of natural resources can be shaped. 

Read more
November 29, 2021 –

Eawag scientist Christopher Robinson is one of the main editors of this book on the biological and hydrological characteristics of more than 180 of the highest profile rivers in Europe.

Eawag scientist Christopher Robinson is one of the main editors of this book on the biological and hydrological characteristics of more than 180 of the highest profile rivers in Europe.

Read more
November 25, 2021 –

Eawag intends to further develop artificial intelligence methods to enable their increasing use in water research. One current application is the monitoring of plankton communities in lakes. With the help of machine learning...

Eawag intends to further develop artificial intelligence methods to enable their increasing use in water research. One current application is the monitoring of plankton communities in lakes. With the help of machine learning methods, it has been possible to implement an automatic classification of the microorganisms.   

Read more
November 23, 2021 –

Researchers Christoph Vorburger and Florian Altermatt talk about the importance and state of aquatic biodiversity in Switzerland and Eawag’s commitment to conserving natural biodiversity.

Researchers Christoph Vorburger and Florian Altermatt talk about the importance and state of aquatic biodiversity in Switzerland and Eawag’s commitment to conserving natural biodiversity.

Read more
November 19, 2021 –

Rising temperatures, invasive species and other factors have changed the composition of species in Lake Constance over the last century. Researchers are trying to understand how this could have happened and what it means for the...

Rising temperatures, invasive species and other factors have changed the composition of species in Lake Constance over the last century. Researchers are trying to understand how this could have happened and what it means for the lake.

Read more
November 2, 2021 –

Our lakes, rivers and streams are teeming with the smallest creatures, plants and bacteria that are barely visible to the naked eye, if at all. An underwater camera makes it possible to observe and identify the species of these...

Our lakes, rivers and streams are teeming with the smallest creatures, plants and bacteria that are barely visible to the naked eye, if at all. An underwater camera makes it possible to observe and identify the species of these creatures in real time.

Read more
October 29, 2021 –

Whether a hydroelectric power plant is built, a pesticide is banned or a moor is placed under protection – a wide variety of political decisions have an impact on biodiversity. But does biodiversity play any role at all in such...

Whether a hydroelectric power plant is built, a pesticide is banned or a moor is placed under protection – a wide variety of political decisions have an impact on biodiversity. But does biodiversity play any role at all in such decisions? Researchers at Eawag and WSL have investigated this question and examined Swiss policy over the past 20 years.

Read more
August 5, 2021 –

Blue-green algae and other phytoplankton are very important for the proper functioning of aquatic ecosystems. When they accumulate in high quantities, however, they can be harmful to people and animals because some blue-green...

Blue-green algae and other phytoplankton are very important for the proper functioning of aquatic ecosystems. When they accumulate in high quantities, however, they can be harmful to people and animals because some blue-green algae species produce toxic chemicals. For this reason, the aquatic research institute Eawag is currently working on methods to improve the prediction of bloom events.

Read more
July 22, 2021 –

Each year at Eawag, around 160 Master’s and Bachelor’s students are supervised and often directly involved in research projects. Again and again, this collaboration – as well as Eawag’s flat hierarchies and interdisciplinary...

Each year at Eawag, around 160 Master’s and Bachelor’s students are supervised and often directly involved in research projects. Again and again, this collaboration – as well as Eawag’s flat hierarchies and interdisciplinary culture – leads to outstanding Master’s theses.

Read more
July 15, 2021 –

Open Science is an important development in science - open access to the results of research. Eawag supports these and makes a growing part of its research data, including descriptions, images and even software, available publicly...

Open Science is an important development in science - open access to the results of research. Eawag supports these and makes a growing part of its research data, including descriptions, images and even software, available publicly and free of charge on the Eawag platform ERIC or, in special cases, on discipline-specific, international databases. ERIC complements the long-standing platform DORA for scientific publications.

Read more
June 29, 2021 –

Groundwater is also an ecosystem, but little is known about the biodiversity underground. Eawag researchers have now documented the diversity of life in Swiss groundwater in a pilot study – and discovered previously unknown...

Groundwater is also an ecosystem, but little is known about the biodiversity underground. Eawag researchers have now documented the diversity of life in Swiss groundwater in a pilot study – and discovered previously unknown species of amphipods in the process. Here they relied on a citizen science approach.

Read more
June 17, 2021 –

Formerly widespread, native crayfish in Switzerland are now highly endangered. With support from Eawag, experts are doing everything they can to preserve the secretive river dwellers.

Formerly widespread, native crayfish in Switzerland are now highly endangered. With support from Eawag, experts are doing everything they can to preserve the secretive river dwellers.

Read more
May 20, 2021 –

22 May is the International Day for Biological Diversity. In 2021, the theme is: "We are part of the solution". The research institutes Eawag and WSL are working together in search of solutions to conserve, promote and protect...

22 May is the International Day for Biological Diversity. In 2021, the theme is: "We are part of the solution". The research institutes Eawag and WSL are working together in search of solutions to conserve, promote and protect biodiversity.

Read more
April 9, 2021 –

The influence of various factors on the ecosystem of Lake Constance and its resilience is the main focus of two mutually informative and wide-ranging research projects that are currently in progress.

The influence of various factors on the ecosystem of Lake Constance and its resilience is the main focus of two mutually informative and wide-ranging research projects that are currently in progress.

Read more
April 8, 2021 –

In the Blue-Green Biodiversity research initiative of WSL and Eawag scientists from around the world are working together to find solutions to the pressing challenges of biodiversity loss. The scientists explain in a video what...

In the Blue-Green Biodiversity research initiative of WSL and Eawag scientists from around the world are working together to find solutions to the pressing challenges of biodiversity loss. The scientists explain in a video what they are working on – and why.

Read more
March 22, 2021 –

The motto of today’s World Water Day is “Valuing water – What means water to you?”. With this motto, the United Nations wants to raise awareness of the vital importance of water and call on people to think about the value of...

The motto of today’s World Water Day is “Valuing water – What means water to you?”. With this motto, the United Nations wants to raise awareness of the vital importance of water and call on people to think about the value of water. In an interview, Eawag Director Janet Hering explains the importance of water for the aquatic research institute Eawag and also her personally.

Read more
March 16, 2021 –

There will be no general shortage, but water may be scarce depending on the region and time of year – conversely, heavier rainfall will lead to more local flooding. These are the findings of the Hydro-CH2018 project published...

There will be no general shortage, but water may be scarce depending on the region and time of year – conversely, heavier rainfall will lead to more local flooding. These are the findings of the Hydro-CH2018 project published today, Hydrological Principles of Climate Change. The extensive study with collaboration of the Eawag Water Research Institute was carried out under the lead of the Federal Office for the Environment (FOEN) in conjunction with the National Centre for Climate Services (NCCS). Climate change means that our use of water will have to change in future.

Read more
March 2, 2021 –

In Lake Constance, sticklebacks are occupying increasingly varied habitat types – in recent years even including the open and deep waters of the lake. In an Eawag review undertaken as part of the “SeeWandel” project, these...

In Lake Constance, sticklebacks are occupying increasingly varied habitat types – in recent years even including the open and deep waters of the lake. In an Eawag review undertaken as part of the “SeeWandel” project, these uniquely diverse ecological adaptations are explained in terms of renewed contact between three stickleback lineages – including one originating from the Baltic region, whose genetic material is as yet rarely observed in other Swiss lakes.

Read more
February 25, 2021 –

Copepods (minute crustaceans with paddle-like feet) can differentiate between disturbances in water generated by nearby organisms and turbulence caused by wind or waves – an ability which helps them to find mates. It had...

Copepods (minute crustaceans with paddle-like feet) can differentiate between disturbances in water generated by nearby organisms and turbulence caused by wind or waves – an ability which helps them to find mates. It had previously been assumed that turbulent conditions would impede the quest for mates.

Read more
February 9, 2021 –

Beavers are master builders that reshape aquatic landscapes with their dams and lodges. The environments they inhabit experience an increase in the biodiversity of aquatic organisms, for example. Now, for the first time, an Eawag...

Beavers are master builders that reshape aquatic landscapes with their dams and lodges. The environments they inhabit experience an increase in the biodiversity of aquatic organisms, for example. Now, for the first time, an Eawag study from the wine-growing region known as “Zürcher Weinland” has shown that this is also true for streams in areas given over largely to agriculture. The rodents could therefore be interesting partners when it comes to enhancing bodies of water.

Read more

2020

December 17, 2020 –

Europe still has barely any downstream passage facilities that guide fish past the turbines of run-of-river power stations unharmed. Now, an interdisciplinary team of engineers from ETH Zurich and fish biologists from Eawag have...

Europe still has barely any downstream passage facilities that guide fish past the turbines of run-of-river power stations unharmed. Now, an interdisciplinary team of engineers from ETH Zurich and fish biologists from Eawag have developed a rack that uses pressure and flow differences to guide fish out of the main flow and into the safe fish passage. Laboratory tests have shown that the system, which works by influencing fish behaviour, is particularly effective for cyprinid fish and salmon parr.

Read more
December 1, 2020 –

The analysis of DNA fragments and their assignment to individual species – an increasingly well‑established approach – is transforming biodiversity assessment. Samples collected from waterbodies permit rapid biomonitoring of...

The analysis of DNA fragments and their assignment to individual species – an increasingly well‑established approach – is transforming biodiversity assessment. Samples collected from waterbodies permit rapid biomonitoring of aquatic ecosystems. However, environmental DNA (eDNA) analysis is not without pitfalls. For this reason, guidelines for practitioners have now been developed by a group of experts – including Eawag scientists – coordinated by the Federal Office for the Environment. These guidelines, covering the whole process from sampling to data interpretation, should help to ensure that eDNA applications produce reliable results.

Read more
November 19, 2020 –

A factsheet from the Swiss Academy of Sciences (SCNAT) shows: Too much nitrogen and phosphorus is released into the Swiss environment. There they damage biodiversity, forests and water bodies, exacerbate climate change and affect...

A factsheet from the Swiss Academy of Sciences (SCNAT) shows: Too much nitrogen and phosphorus is released into the Swiss environment. There they damage biodiversity, forests and water bodies, exacerbate climate change and affect human health. Actually the causes are known.

Read more
October 15, 2020 –

Exploration and utilisation of resources from the world’s oceans is not equally distributed across the globe. Although many of these resources originate in the Global South, they are mostly being researched by just a few countries...

Exploration and utilisation of resources from the world’s oceans is not equally distributed across the globe. Although many of these resources originate in the Global South, they are mostly being researched by just a few countries from the North. Accordingly, this is also where most of the benefits and profits are flowing to, despite the Convention on Biological Diversity. This was the finding of an analysis of literature from the last 50 years.

Read more
October 9, 2020 –

Whether a lake was once polluted with excess nutrients is reflected even decades later in the community of bacteria living on these nutrients in the sediment. However, there is still surprisingly little research into how microbes...

Whether a lake was once polluted with excess nutrients is reflected even decades later in the community of bacteria living on these nutrients in the sediment. However, there is still surprisingly little research into how microbes in the sediment cooperate.

Read more
September 10, 2020 –

Until recently, researchers assumed that Switzerland had around 20 native species of amphipods. Now, a project by the Swiss Federal Institute of Aquatic Science and Technology (Eawag) and the University of Zurich has revealed that...

Until recently, researchers assumed that Switzerland had around 20 native species of amphipods. Now, a project by the Swiss Federal Institute of Aquatic Science and Technology (Eawag) and the University of Zurich has revealed that there are actually more than 40. It is always worth taking a closer look, because we can only protect the things that we know exist.

Read more
September 8, 2020 –

Process Engineer Adriano Joss from Eawag water research institute has been working for many years on wastewater treatment plants and the removal of micropollutants from water. Together with Ralf Kägi, Head of the Eawag Particle...

Process Engineer Adriano Joss from Eawag water research institute has been working for many years on wastewater treatment plants and the removal of micropollutants from water. Together with Ralf Kägi, Head of the Eawag Particle Laboratory, he has compiled the current status of knowledge on microplastics. In an interview, he presents the most important findings. We have recently posted detailed information on the website “Microplastics in the environment”.

Read more
August 26, 2020 –

Using genomic analyses of 100 cichlid species, scientists from Eawag and the University Bern, together with co-workers in Australia, the UK, Tanzania, Uganda and the US, have investigated the striking variation observed in cichlid...

Using genomic analyses of 100 cichlid species, scientists from Eawag and the University Bern, together with co-workers in Australia, the UK, Tanzania, Uganda and the US, have investigated the striking variation observed in cichlid fish speciation rates. Their findings show that exchanges of genetic variants between existing species dramatically accelerate the development of new species – given favourable ecological conditions.

Read more
August 17, 2020 –

Blue-green algae are very common both in the water and on land. Sporadically, they occur in lakes on the surface in such large numbers that one speaks of a bloom. Because there are species that can produce toxic substances, many...

Blue-green algae are very common both in the water and on land. Sporadically, they occur in lakes on the surface in such large numbers that one speaks of a bloom. Because there are species that can produce toxic substances, many questions arise.

Read more
July 17, 2020 –

Biodiversity and thus the state of river ecosystems can now be predicted. To achieve this, researchers from the University of Zurich and Eawag (Aquatic Science and Technology) are combining environmental DNA with hydrological...

Biodiversity and thus the state of river ecosystems can now be predicted. To achieve this, researchers from the University of Zurich and Eawag (Aquatic Science and Technology) are combining environmental DNA with hydrological methods. Using the river Thur as an example, the approach allows identifying target areas for conservation and initiating protective measures.

Read more
July 9, 2020 –

The Verband zum Schutz des Greifensees (VGS) (Association for the Preservation of Lake Greifensee) elected its new Council of Delegates on 25 June 2020. In addition to representatives of all municipalities surrounding the lake,...

The Verband zum Schutz des Greifensees (VGS) (Association for the Preservation of Lake Greifensee) elected its new Council of Delegates on 25 June 2020. In addition to representatives of all municipalities surrounding the lake, the committee also includes cantonal agencies, farmers, fishermen, sailors and – for the first time – a research representative, with the election of Eawag’s Piet Spaak as an aquatic ecologist.

Read more
July 7, 2020 –

Natural environments vary in space and time and are now drastically changing due to human activities. Environmental changes, like increasing acidity in a pond, can strongly affect the long-term prospects of species. Katja Räsänen...

Natural environments vary in space and time and are now drastically changing due to human activities. Environmental changes, like increasing acidity in a pond, can strongly affect the long-term prospects of species. Katja Räsänen from Eawag’s department Aquatic Ecology aims to understand how natural populations of the moor frog adapt to environmental change.

Read more
June 17, 2020 –

Since spring 2018, the newly developed underwater camera Aquascope has been recording a wide variety of plankton species in Lake Greifen. These sensitive organisms can thus, for the first time, be observed undisturbed in their...

Since spring 2018, the newly developed underwater camera Aquascope has been recording a wide variety of plankton species in Lake Greifen. These sensitive organisms can thus, for the first time, be observed undisturbed in their natural habitat – an important step towards automated monitoring of water quality and aquatic biodiversity.

Read more
June 3, 2020 –

If one observes the competition between parasites and symbionts, much can be learned about the theory of evolution. Two Eawag researchers have thus shown in a new study that high parasite diversity promotes symbiont diversity.

If one observes the competition between parasites and symbionts, much can be learned about the theory of evolution. Two Eawag researchers have thus shown in a new study that high parasite diversity promotes symbiont diversity.

Read more
May 25, 2020 –

126 Swiss researchers, including 6 from Eawag, want to draw the attention their Swiss compatriots to the scientific evidence showing the link between the emergence of pandemics and human disturbance of the natural environment.

126 Swiss researchers, including 6 from Eawag, want to draw the attention their Swiss compatriots to the scientific evidence showing the link between the emergence of pandemics and human disturbance of the natural environment.

Read more
May 20, 2020 –

To mark this year’s International Day for Biological Diversity on 22 May, professor Catherine Graham and professor Florian Altermatt explain in an interview why it is important in biodiversity research to look beyond systemic...

To mark this year’s International Day for Biological Diversity on 22 May, professor Catherine Graham and professor Florian Altermatt explain in an interview why it is important in biodiversity research to look beyond systemic boundaries. The two scientists lead the joint research initiative “Blue-Green Biodiversity” between WSL and Eawag.

Read more
May 18, 2020 –

To protect ecosystems, it is important to understand how environmental disturbances, such as forest fires or hurricanes, affect nature. A study by Eawag and the University of Zurich now shows how their frequency and intensity...

To protect ecosystems, it is important to understand how environmental disturbances, such as forest fires or hurricanes, affect nature. A study by Eawag and the University of Zurich now shows how their frequency and intensity affect small and large organisms. Accordingly, large species are more affected by disturbances than small species, and this influences the size distribution within ecological communities.

Read more
April 7, 2020 –

The spatial requirements for surface waters specified in the Waters Protection Act represent the absolute minimum required to safeguard their ecological functions. The space provided along small streams is of particular...

The spatial requirements for surface waters specified in the Waters Protection Act represent the absolute minimum required to safeguard their ecological functions. The space provided along small streams is of particular importance, as material flows between terrestrial and aquatic ecosystems are not dependent on the width of the watercourse. This is shown by Eawag’s own investigations – and by a review of available studies, which was cited by the Federal Supreme Court in a recent ruling.

 

Read more
March 13, 2020 –

The ETH Board is strengthening the interdisciplinary biodiversity research of WSL and Eawag in order to find answers to the urgent social challenges of species loss as quickly as possible.

The ETH Board is strengthening the interdisciplinary biodiversity research of WSL and Eawag in order to find answers to the urgent social challenges of species loss as quickly as possible.

Read more
March 12, 2020 –

Host and parasites are often engaged in an evolutionary arms race. Researchers at Eawag have intervened in this warring relationship and demonstrated how it can be used to improve biological pest control.

Host and parasites are often engaged in an evolutionary arms race. Researchers at Eawag have intervened in this warring relationship and demonstrated how it can be used to improve biological pest control.

Read more