Gesa Weyhenmeyer
Professor at Department of Ecology and Genetics; Limnology
- Telephone:
- +46 18 471 27 11
- E-mail:
- Gesa.Weyhenmeyer@ebc.uu.se
- Visiting address:
- Evolutionsbiologiskt centrum (EBC)
Norbyvägen 18 D
752 36 Uppsala - Postal address:
- Norbyvägen 18 D
752 36 Uppsala
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Short presentation
Gesa Weyhenmeyer is a Professor of Aquatic Biogeochemistry and member of the Royal Swedish Academy of Sciences. She is a Distinguished University Teacher with a passion to understand how Earth's highly diverse and fascinating lake ecosystems respond to the ongoing accelerating pace of change in the world. Much of her research is carried out within the Global Lake Ecological Observatory Network (GLEON). More information is available at http://weyhenmeyer.weebly.com
Biography
Information is available at http://weyhenmeyer.weebly.com
Publications
Recent publications
- Rapid lake ice structure changes across Swedish lakes puts public ice safety at risk (2025)
- What makes a cyanobacterial bloom disappear? (2024)
- Responses by benthic invertebrate community composition to dissolved organic matter in lakes decline substantially above a threshold concentration (2024)
- Climate-driven deoxygenation of northern lakes (2024)
- Anoxia begets anoxia (2024)
All publications
Articles
- Rapid lake ice structure changes across Swedish lakes puts public ice safety at risk (2025)
- What makes a cyanobacterial bloom disappear? (2024)
- Responses by benthic invertebrate community composition to dissolved organic matter in lakes decline substantially above a threshold concentration (2024)
- Climate-driven deoxygenation of northern lakes (2024)
- Anoxia begets anoxia (2024)
- Controls on Lake Pelagic Primary Productivity (2024)
- Nonlinear responses in interannual variability of lake ice to climate change (2024)
- Toward a fundamental understanding of ecosystem metabolism responses to global warming (2024)
- Global Lake Health in the Anthropocene (2024)
- Widespread variation in salt tolerance within freshwater zooplankton species reduces the predictability of community-level salt tolerance (2023)
- Diel, seasonal, and inter-annual variation in carbon dioxide effluxes from lakes and reservoirs (2023)
- Lake salinization drives consistent losses of zooplankton abundance and diversity across coordinated mesocosm experiments (2023)
- Carbon dioxide reduction by photosynthesis undetectable even during phytoplankton blooms in two lakes (2023)
- Plastic debris in lakes and reservoirs (2023)
- Blooms also like it cold (2023)
- Sediment Records Shed Light on Drivers of Decadal Iron Concentration Increase in a Boreal Lake (2022)
- Current water quality guidelines across North America and Europe do not protect lakes from salinization (2022)
- Global increase in methane production under future warming of lake bottom waters (2022)
- Long-term ice phenology records spanning up to 578 years for 78 lakes around the Northern Hemisphere (2022)
- Urbanization in developing countries overrides catchment productivity in fueling inland water CO2 emissions (2022)
- Towards critical white ice conditions in lakes under global warming (2022)
- Winter inverse lake stratification under historic and future climate change (2022)
- The lake as an iron sink - new insights on the role of iron speciation (2021)
- Increasing maximum lake surface temperature under climate change (2021)
- Widespread deoxygenation of temperate lakes (2021)
- Climate change drives widespread shifts in lake thermal habitat (2021)
- Global data set of long-term summertime vertical temperature profiles in 153 lakes (2021)
- Loss of Ice Cover, Shifting Phenology, and More Extreme Events in Northern Hemisphere Lakes (2021)
- Phenological shifts in lake stratification under climate change (2021)
- A New Thermal Categorization of Ice-Covered Lakes (2021)
- Global Climate (2020)
- Lake surface temperature (2020)
- Summary of a workshop on extreme weather events in a warming world organized by the Royal Swedish Academy of Sciences (2020)
- A simplified approach to detect a significant carbon dioxide reduction by phytoplankton in lakes and rivers on a regional and global scale (2020)
- Scientists’ Warning to Humanity (2020)
- Disruptions and re-establishment of the calcium-bicarbonate equilibrium in freshwaters (2020)
- Groundwater carbon within a boreal catchment (2020)
- Diverse drivers of long-term pCO2 increases across thirteen boreal lakes and streams (2020)
- Deeper waters are changing less consistently than surface waters in a global analysis of 102 lakes (2020)
- Increased winter drownings in ice-covered regions with warmer winters (2020)
- Paired O2-CO2 measurements provide emergent insights into aquatic ecosystem function (2020)
- State of the Climate in 2018 (2019)
- The unique methodological challenges of winter limnology (2019)
- Interactions between the atmosphere, cryosphere, and ecosystems at northern high latitudes (2019)
- Phytoplankton gross primary production increases along cascading impoundments in a temperate, low-discharge river (2019)
- Environmental conditions for phytoplankton influenced carbon dynamics in boreal lakes (2019)
- Consequences of lake and river ice loss on cultural ecosystem services (2019)
- Mechanistic model identifies increasing light availability due to sea ice reductions as cause for increasing macroalgae cover in the Arctic (2019)
- Colored organic matter increases CO2 in meso-eutrophic lake water through altered light climate and acidity (2019)
- Widespread loss of lake ice around the Northern Hemisphere in a warming world (2019)
- Warmer and browner waters decrease fish biomass production (2019)
- Widespread diminishing anthropogenic effects on calcium in freshwaters (2019)
- Substantial increase in minimum lake surface temperatures under climate change (2019)
- State of the Climate in 2017 (2018)
- Global change-driven effects on dissolved organic matter composition (2018)
- A lake classification concept for a more accurate global estimate of the dissolved inorganic carbon export from terrestrial ecosystems to inland waters (2018)
- Ten simple rules for collaboratively writing a multi-authored paper (2018)
- CO2 evasion from boreal lakes (2018)
- Snapshot Surveys for Lake Monitoring, More Than a Shot in the Dark (2018)
- Acid rain — a strong external driver that has suppressed water colour variability between lakes (2018)
- Carbon dioxide and methane emissions of Swedish low-order streams (2018)
- Lake surface temperature [in “State of the Climate in 2017”] (2018)
- Widespread Increases in Iron Concentration in European and North American Freshwaters (2017)
- Ecology under lake ice (2017)
- No long-term trends in pCO2 despite increasing organic carbon concentrations in boreal lakes, streams and rivers (2017)
- Large differences between carbon and nutrient loss rates along the land to ocean aquatic continuum-implications for energy:nutrient ratios at downstream sites (2017)
- Citizen science shows systematic changes in the temperature difference between air and inland waters with global warming (2017)
- Lake surface temperature [in "State of the Climate in 2016"] (2017)
- Current Browning of Surface Waters Will Be Further Promoted by Wetter Climate (2016)
- Regional Variability and Drivers of Below Ice CO2 in Boreal and Subarctic Lakes (2016)
- Constraints on methane oxidation in ice-covered boreal lakes (2016)
- Modeling nonlinear responses of DOC transport in boreal catchments in Sweden (2016)
- Automatic High Frequency Monitoring for Improved Lake and Reservoir Management (2016)
- Methane oxidation at the water-ice interface of an ice-covered lake (2016)
- Sensitivity of freshwaters to browning in response to future climate change (2016)
- Diel Surface Temperature Range Scales with Lake Size (2016)
- Lake surface temperatures (2016)
- Temporal and spatial carbon dioxide concentration patterns in a small boreal lake in relation to ice cover dynamics (2015)
- Impact of TiO2 nanoparticles on freshwater bacteria from three Swedish lakes (2015)
- Rapid and highly variable warming of lake surface waters around the globe (2015)
- A global database of lake surface temperatures collected by in situ and satellite methods from 1985–2009 (2015)
- Temporal control on concentration, character and export of dissolved organic carbon in two hemiboreal headwater streams draining contrasting catchments (2015)
- Significant fraction of CO2 emissions from boreal lakes derived from hydrologic inorganic carbon inputs (2015)
- Sunlight-induced carbon dioxide emissions from inland waters (2014)
- Controls of dissolved organic matter quality (2014)
- Hourly, daily, and seasonal variability in the absorption spectra of chromophoric dissolved organic matter in a eutrophic, humic lake (2014)
- Increasing algal biomass in Lake Vänern despite decreasing phosphorus concentrations (2014)
- Browning of Boreal Freshwaters Coupled to Carbon-Iron Interactions along the Aquatic Continuum (2014)
- Intra-annual variability of organic carbon concentrations in running waters (2014)
- Inner filter correction of dissolved organic matter fluorescence (2013)
- Water renewal along the aquatic continuum offsets cumulative retention by lakes (2013)
- Shifts in phytoplankton species richness and biomass along a latitudinal gradient (2013)
- Extreme events, trends, and variability in Northern Hemisphere lake-ice phenology (1855-2005) (2012)
- Long-term changes in physical and chemical conditions of nutrient-poor lakes along a latitudinal gradient (2012)
- Evaluating pharmaceuticals and caffeine as indicators of fecal contamination in drinking water sources of the Greater Montreal region (2012)
- Neglected sources of pharmaceuticals in river water (2012)
- Forestry Influence by Stump Harvest and Site Preparation on Methylmercury, Total Mercury and Other Stream Water Chemistry Parameters Across a Boreal Landscape (2012)
- Effects of stratification depth and dissolved organic matter on brackish bacterioplankton communities (2012)
- Effects of weather-related episodic events in lakes (2012)
- Temperature as a driver for the expansion of the microalga Gonyostomum semen in Swedish lakes (2012)
- Selective decay of terrestrial organic carbon during transport from land to sea (2012)
- Carbon Dioxide in Boreal Surface Waters (2012)
- Increasing Dissolved Organic Carbon Redefines the Extent of Surface Water Acidification and Helps Resolve a Classic Controversy (2011)
- An automated method to monitor lake ice phenology (2011)
- Past and Future Changes in Arctic Lake and River Ice (2011)
- Arctic Freshwater Ice and Its Climatic Role (2011)
- Effects of Changes in Arctic Lake and River Ice (2011)
- Large geographical differences in the sensitivity of ice-covered lakes and rivers in the Northern Hemisphere to temperature changes (2011)
- Seasonal variations in the occurrence and fate of basic and neutral pharmaceuticals in a Swedish river-lake system (2010)
- Winter accumulation of acidic pharmaceuticals in a Swedish river (2010)
- Nitrogen and carbon interactions between boreal soils and lakes (2010)
- Nitrogen deposition induced changes in DOC:NO3-N ratios determine the efficiency of nitrate removal from freshwaters (2010)
- Lakes as sentinels of climate change (2009)
- Growing season variability of nitrate along a trophic gradient (2009)
- Climate change and the future of freshwater biodiversity in Europe (2009)
- Lakes and reservoirs as regulators of carbon cycling and climate (2009)
- Increasing dissimilarity of water chemical compositions in a warmer climate (2009)
- Do warmer winters change variability patterns of physical and chemical lake conditions in Sweden? (2009)
- Nonlinear response of dissolved organic carbon concentrations in boreal lakes to increasing temperatures (2009)
- Thirty-five years of synchrony in the organic matter concentrations of Swedish rivers explained by variation in flow and sulphate (2008)
- Natural variability in lake pH on seasonal, interannual and decadal time scales (2008)
- Silicon load and the development of diatoms in three river-lake systems in countries surrounding the Baltic Sea (2008)
- Abrupt changes in air temperature and precipitation (2008)
- Water chemical changes along a latitudinal gradient in relation to climate and atmospheric deposition (2008)
- Rates of change in physical and chemical lake variables - are they comparable between large and small lakes? (2008)
- Increasingly ice-free winters and their effects on water quality in Sweden's largest lakes (2008)
- Large-scale climatic signatures in lakes across Europe (2007)
- Adapting regional eutrophication targets for surface waters - influence of the EU water framework directive national policy and climate change (2007)
- Nitrate-depleted conditions on the increase in shallow northern European lakes (2007)
- The role of spatial scale and area in determining richness-altitude gradients in Swedish lake phytoplankton communities (2006)
- Systematic differences in the trend towards earlier ice-out on Swedish lakes along a latitudinal temperature gradient (2005)
- Atmospheric circulation and its impact on ice phenology in Scandinavia (2004)
- Synchrony in relationships between the North Atlantic Oscillation and water chemistry among Sweden's largest lakes (2004)
- Nonlinear temperature response of lake ice breakup (2004)
- Effects of an extreme precipitation event on water chemistry and phytoplankton in the Swedish Lake Malaren (2004)
- Seasonality of chlorophyll and nutrients in Lake Erken - effects of weather conditions (2003)
- Response of phytoplankton in European lakes to a change in the North Atlantic Oscillation (2002)
- Hypolimnetic lake sediments in frequent motion (2001)
- Changes of the plankton spring outburst related to the North Atlantic Oscillation (1999)
- Resuspension in lakes and its ecological impact (1998)
- Quantitative relationships between planktonic biomass and organic/inorganic resuspended particle matter. (1998)
- Quantification of resuspended particles in sedimentation traps. (1997)
- A validated model for daily variations in the flux, origin, and distribution of settling particles within lakes (1997)
- The influence of stratification on the amount and distribution of different settling particles in Lake Erken (1996)
- SIMPLE METHOD TO QUANTIFY SOURCES OF SETTLING PARTICLES IN LAKES - RESUSPENSION VERSUS NEW SEDIMENTATION OF MATERIAL FROM PLANKTONIC PRODUCTION (1995)
- HIGH-RESOLUTION MEASUREMENTS OF SEDIMENT RESUSPENSION ABOVE AN ACCUMULATION BOTTOM IN A STRATIFIED LAKE (1994)
- High-frequency monitoring of colored dissolved organic matter (CDOM) fluorescence in the Swedish river Hedströmmen
Books
Chapters
- High Mountain Areas (2019)
- Environmental Impacts—Freshwater Biogeochemistry (2015)
- Changing lake and river ice regimes (2011)
- The impact of changing climate on the thermal characteristics of lakes (2010)
- The impact of climate change on lakes in northern Europe (2010)
- The impact of the changing climate on the flux of dissolved organic carbon from catchments (2010)
- Regional and supra-regional coherence in limnological variables (2010)
- Lake ice phenology (2010)
- The impact of the changing climate on seasonal dynamics of phytoplankton (2010)
- Lakes of Europe (2009)
- The response of freshwater ecosystems to climate variability asscociated with the North Atlantic Oscillation (2003)
Conferences
- Seasonal variations in carbon dioxide emissions from lakes and streams (2011)
- Year to year differences in the temperature regime below the ice cover in Lake Erken during the last ten years (1998)
- Modelling lake sedimentation: The significance of the partitioning coefficient (1993)
Reports
- Konsekvenser för sötvattnen av ändrad utlakning från skogs- och jordbruksmark inkluderande ändringar i grundvatten orsakade av klimatpåverkad hydrologi och temperatur (2009)
- Sårbarheten på ytvattenkvalitén (2007)
- Mörkare sjöar ger förändrad biologi (2007)
- Klimatförändringarnas påverkan på vattenkvalitén (2006)
- Long-term supra-regional coherence (2005)
- Changes in phytoplankton species composition and functional groups (2005)
- Hur fort förändrar sig sjöarnas vattenkvalité i Sverige på grund av klimatförändringar? (2005)
- Vilken biologi kan vi förvänta oss i kalkade vatten - använding av SOM metoden (2005)
- Automatiska mätningar av löst organiskt material i Mälarens inflöden (2005)
- Klimat och vattenstånd under 2004 (2005)
- Long-term regional coherence (2004)
- Short-term coherence (2004)
- Vättern och dess tillflöden (2004)
- Report on phytoplankton growth patterns (2004)
- Miljövervakning i Mälaren 2003 (2004)
- Klimat och vattenstånd under 2003 (2004)
- Miljöövervakning i Mälaren 2003. Sammanfattning (2004)
- Vättern och dess tillflöden (2003)
- Miljöövervakning i Mälaren 2002 (2003)
- Sedimentens bidrag till fosforbelastningen i Mälaren (2003)
- Klimat och vattenstånd under 2002 (2003)
- Sedimentens bidrag till fosforbelatningen i Mälaren. Sammanfattning (2003)
- Miljöövervakning i Mälaren 2002. Sammanfattning (2003)
- Miljöövervakning i Mälaren 2001 (2002)
- Klimat och vattenstånd under 2001 (2002)
- Mälaren har blivit brun (2002)
- Mälarens grumlighet och vattenfärg - långsiktiga och kortsiktiga trender 1965-2001 (2002)
- Klimat och vattenstånd 2001 (2002)
- Miljöövervakning i Mälarens fjärdar och sund 2000 (2001)
- Vättern och dess tillflöden 2000 (2001)
- Varmare vintrar - ökad risk för algblomning i svenska sjöar (2001)
- Klimat och vattenstånd under 2000 (2001)
- Miljöövervakning i Mälarens fjärdar och sund 1999 (2000)
- Vättern och dess tillflöden 1999 (2000)
- Samordning av miljöövervakningen i de stora sjöarna (2000)
- Klimatpåverkan (2000)
- Lake Erken and Lake Mälaren (2000)
- Klimat och vattenstånd 1999 (2000)
- Mälarvattnets fysikalisk-kemiska tillstånd (2000)
- Lake Erken (1999)
- Lake Erken and Lake Mälaren (1999)
- Undersökning av Nyköpingsfjärdarnas bottensediment med avseende på fosforformer och porvattnets näringsämneshalter (1997)
Data sets
Other
