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182 results on '"Arvola L"'

1. Consequence of altered nitrogen cycles in the coupled human and ecological system under changing climate: The need for long-term and site-based research

Author

Shibata, H, Branquinho, C, McDowell, WH, Mitchell, MJ, Monteith, DT, Tang, J, Arvola, L, Cruz, C, Cusack, DF, Halada, L, Kopáček, J, Máguas, C, Sajidu, S, Schubert, H, Tokuchi, N, and Záhora, J

Subjects
Ecology
Abstract

Anthropogenically derived nitrogen (N) has a central role in global environmental changes, including climate change, biodiversity loss, air pollution, greenhouse gas emission, water pollution, as well as food production and human health. Current understanding of the biogeochemical processes that govern the N cycle in coupled human–ecological systems around the globe is drawn largely from the long-term ecological monitoring and experimental studies. Here, we review spatial and temporal patterns and trends in reactive N emissions, and the interactions between N and other important elements that dictate their delivery from terrestrial to aquatic ecosystems, and the impacts of N on biodiversity and human society. Integrated international and long-term collaborative studies covering research gaps will reduce uncertainties and promote further understanding of the nitrogen cycle in various ecosystems.

Published
2015

3. Widespread deoxygenation of temperate lakes

Author

Jane, S, Hansen, G, Kraemer, B, Leavitt, P, Mincer, J, North, R, Pilla, R, Stetler, J, Williamson, C, Woolway, R, Arvola, L, Chandra, S, Degasperi, C, Diemer, L, Dunalska, J, Erina, O, Flaim, G, Grossart, H, Hambright, K, Hein, C, Hejzlar, J, Janus, L, Jenny, J, Jones, J, Knoll, L, Leoni, B, Mackay, E, Matsuzaki, S, Mcbride, C, Muller-Navarra, D, Paterson, A, Pierson, D, Rogora, M, Rusak, J, Sadro, S, Saulnier-Talbot, E, Schmid, M, Sommaruga, R, Thiery, W, Verburg, P, Weathers, K, Weyhenmeyer, G, Yokota, K, Rose, K, Jane S. F., Hansen G. J. A., Kraemer B. M., Leavitt P. R., Mincer J. L., North R. L., Pilla R. M., Stetler J. T., Williamson C. E., Woolway R. I., Arvola L., Chandra S., DeGasperi C. L., Diemer L., Dunalska J., Erina O., Flaim G., Grossart H. -P., Hambright K. D., Hein C., Hejzlar J., Janus L. L., Jenny J. -P., Jones J. R., Knoll L. B., Leoni B., Mackay E., Matsuzaki S. -I. S., McBride C., Muller-Navarra D. C., Paterson A. M., Pierson D., Rogora M., Rusak J. A., Sadro S., Saulnier-Talbot E., Schmid M., Sommaruga R., Thiery W., Verburg P., Weathers K. C., Weyhenmeyer G. A., Yokota K., Rose K. C., Jane, S, Hansen, G, Kraemer, B, Leavitt, P, Mincer, J, North, R, Pilla, R, Stetler, J, Williamson, C, Woolway, R, Arvola, L, Chandra, S, Degasperi, C, Diemer, L, Dunalska, J, Erina, O, Flaim, G, Grossart, H, Hambright, K, Hein, C, Hejzlar, J, Janus, L, Jenny, J, Jones, J, Knoll, L, Leoni, B, Mackay, E, Matsuzaki, S, Mcbride, C, Muller-Navarra, D, Paterson, A, Pierson, D, Rogora, M, Rusak, J, Sadro, S, Saulnier-Talbot, E, Schmid, M, Sommaruga, R, Thiery, W, Verburg, P, Weathers, K, Weyhenmeyer, G, Yokota, K, Rose, K, Jane S. F., Hansen G. J. A., Kraemer B. M., Leavitt P. R., Mincer J. L., North R. L., Pilla R. M., Stetler J. T., Williamson C. E., Woolway R. I., Arvola L., Chandra S., DeGasperi C. L., Diemer L., Dunalska J., Erina O., Flaim G., Grossart H. -P., Hambright K. D., Hein C., Hejzlar J., Janus L. L., Jenny J. -P., Jones J. R., Knoll L. B., Leoni B., Mackay E., Matsuzaki S. -I. S., McBride C., Muller-Navarra D. C., Paterson A. M., Pierson D., Rogora M., Rusak J. A., Sadro S., Saulnier-Talbot E., Schmid M., Sommaruga R., Thiery W., Verburg P., Weathers K. C., Weyhenmeyer G. A., Yokota K., and Rose K. C.

Abstract

The concentration of dissolved oxygen in aquatic systems helps to regulate biodiversity1,2, nutrient biogeochemistry3, greenhouse gas emissions4, and the quality of drinking water5. The long-term declines in dissolved oxygen concentrations in coastal and ocean waters have been linked to climate warming and human activity6,7, but little is known about the changes in dissolved oxygen concentrations in lakes. Although the solubility of dissolved oxygen decreases with increasing water temperatures, long-term lake trajectories are difficult to predict. Oxygen losses in warming lakes may be amplified by enhanced decomposition and stronger thermal stratification8,9 or oxygen may increase as a result of enhanced primary production10. Here we analyse a combined total of 45,148 dissolved oxygen and temperature profiles and calculate trends for 393 temperate lakes that span 1941 to 2017. We find that a decline in dissolved oxygen is widespread in surface and deep-water habitats. The decline in surface waters is primarily associated with reduced solubility under warmer water temperatures, although dissolved oxygen in surface waters increased in a subset of highly productive warming lakes, probably owing to increasing production of phytoplankton. By contrast, the decline in deep waters is associated with stronger thermal stratification and loss of water clarity, but not with changes in gas solubility. Our results suggest that climate change and declining water clarity have altered the physical and chemical environment of lakes. Declines in dissolved oxygen in freshwater are 2.75 to 9.3 times greater than observed in the world’s oceans6,7 and could threaten essential lake ecosystem services2,3,5,11.

Published
2021

5. A framework for ensemble modelling of climate change impacts on lakes worldwide: the ISIMIP Lake Sector

Author

Golub, M., Thiery, W., Marcé, R., Pierson, D., Vanderkelen, I., Mercado-Bettin, D., Woolway, R.I., Grant, L., Jennings, E., Kraemer, B.M., Schewe, J., Zhao, F., Frieler, K., Mengel, M., Bogomolov, V.Y., Bouffard, D., Côté, M., Couture, R.-M., Debolskiy, A.V., Droppers, B., Gal, G., Guo, M., Janssen, A.B.G., Kirillin, G., Ladwig, R., Magee, M., Moore, T., Perroud, M., Piccolroaz, S., Vinnaa, L.R., Schmid, M., Shatwell, Thomas, Stepanenko, V.M., Tan, Z., Woodward, B., Yao, H., Adrian, R., Allan, M., Anneville, O., Arvola, L., Atkins, K., Boegman, L., Carey, C., Christianson, K., de Eyto, E., DeGasperi, C., Grechushnikova, M., Hejzlar, J., Markensten, H., McBride, C., Özkundakci, D., Potes, M., Rinke, K., Robertson, D., Rusak, J.A., Salgado, R., van der Linden​​​​​​​, L., Verburg, P., Wain, D., Ward, N.K., Wollrab, S., Zdorovennova, G., Golub, M., Thiery, W., Marcé, R., Pierson, D., Vanderkelen, I., Mercado-Bettin, D., Woolway, R.I., Grant, L., Jennings, E., Kraemer, B.M., Schewe, J., Zhao, F., Frieler, K., Mengel, M., Bogomolov, V.Y., Bouffard, D., Côté, M., Couture, R.-M., Debolskiy, A.V., Droppers, B., Gal, G., Guo, M., Janssen, A.B.G., Kirillin, G., Ladwig, R., Magee, M., Moore, T., Perroud, M., Piccolroaz, S., Vinnaa, L.R., Schmid, M., Shatwell, Thomas, Stepanenko, V.M., Tan, Z., Woodward, B., Yao, H., Adrian, R., Allan, M., Anneville, O., Arvola, L., Atkins, K., Boegman, L., Carey, C., Christianson, K., de Eyto, E., DeGasperi, C., Grechushnikova, M., Hejzlar, J., Markensten, H., McBride, C., Özkundakci, D., Potes, M., Rinke, K., Robertson, D., Rusak, J.A., Salgado, R., van der Linden​​​​​​​, L., Verburg, P., Wain, D., Ward, N.K., Wollrab, S., and Zdorovennova, G.

Abstract

Empirical evidence demonstrates that lakes and reservoirs are warming across the globe. Consequently, there is an increased need to project future changes in lake thermal structure and resulting changes in lake biogeochemistry in order to plan for the likely impacts. Previous studies of the impacts of climate change on lakes have often relied on a single model forced with limited scenario-driven projections of future climate for a relatively small number of lakes. As a result, our understanding of the effects of climate change on lakes is fragmentary, based on scattered studies using different data sources and modelling protocols, and mainly focused on individual lakes or lake regions. This has precluded identification of the main impacts of climate change on lakes at global and regional scales and has likely contributed to the lack of lake water quality considerations in policy-relevant documents, such as the Assessment Reports of the Intergovernmental Panel on Climate Change (IPCC). Here, we describe a simulation protocol developed by the Lake Sector of the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) for simulating climate change impacts on lakes using an ensemble of lake models and climate change scenarios for ISIMIP phases 2 and 3. The protocol prescribes lake simulations driven by climate forcing from gridded observations and different Earth system models under various representative greenhouse gas concentration pathways (RCPs), all consistently bias-corrected on a 0.5∘ × 0.5∘ global grid. In ISIMIP phase 2, 11 lake models were forced with these data to project the thermal structure of 62 well-studied lakes where data were available for calibration under historical conditions, and using uncalibrated models for 17 500 lakes defined for all global grid cells containing lakes. In ISIMIP phase 3, this approach was expanded to consider more lakes, more models, and more processes. The ISIMIP Lake Sector is the largest international effort to project

Published
2022

18. Wind and trophic status explain within and among-lake variability of algal biomass

Author

Rusak, J. A., Tanentzap, A. J., Klug, J. L., Rose, K. C., Hendricks, S. P., Jennings, E., Laas, A., Pierson, Don, Ryder, E., Smyth, R. L., White, D. S., Winslow, L. A., Adrian, R., Arvola, L., de Eyto, E., Feuchtmayr, H., Honti, M., Istvanovics, V., Jones, I. D., McBride, C. G., Schmidt, S. R., Seekell, D., Staehr, P. A., Zhu, G., Rusak, J. A., Tanentzap, A. J., Klug, J. L., Rose, K. C., Hendricks, S. P., Jennings, E., Laas, A., Pierson, Don, Ryder, E., Smyth, R. L., White, D. S., Winslow, L. A., Adrian, R., Arvola, L., de Eyto, E., Feuchtmayr, H., Honti, M., Istvanovics, V., Jones, I. D., McBride, C. G., Schmidt, S. R., Seekell, D., Staehr, P. A., and Zhu, G.

Abstract

Phytoplankton biomass and production regulates key aspects of freshwater ecosystems yet its variability and subsequent predictability is poorly understood. We estimated within-lake variation in biomass using high-frequency chlorophyll fluorescence data from 18 globally distributed lakes. We tested how variation in fluorescence at monthly, daily, and hourly scales was related to high-frequency variability of wind, water temperature, and radiation within lakes as well as productivity and physical attributes among lakes. Within lakes, monthly variation dominated, but combined daily and hourly variation were equivalent to that expressed monthly. Among lakes, biomass variability increased with trophic status while, within-lake biomass variation increased with increasing variability in wind speed. Our results highlight the benefits of high-frequency chlorophyll monitoring and suggest that predicted changes associated with climate, as well as ongoing cultural eutrophication, are likely to substantially increase the temporal variability of algal biomass and thus the predictability of the services it provides.

Published
2018
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19. Wind and trophic status explain within and among-lake variability of algal biomass

Author

Rusak, J.A., Tanentzap, A.J., Klug, J.L., Rose, K.C., Hendricks, S.P., Jennings, E., Laas, A., Pierson, D., Ryder, E., Smyth, R.L., White, D.S., Winslow, L.A., Adrian, R., Arvola, L., de Eyto, E., Feuchtmayr, H., Honti, M., Istvanovics, V., Jones, I.D., McBride, C.G., Schmidt, S.R., Seekell, D., Staehr, P.A., Zhu, G., Rusak, J.A., Tanentzap, A.J., Klug, J.L., Rose, K.C., Hendricks, S.P., Jennings, E., Laas, A., Pierson, D., Ryder, E., Smyth, R.L., White, D.S., Winslow, L.A., Adrian, R., Arvola, L., de Eyto, E., Feuchtmayr, H., Honti, M., Istvanovics, V., Jones, I.D., McBride, C.G., Schmidt, S.R., Seekell, D., Staehr, P.A., and Zhu, G.

Abstract

Phytoplankton biomass and production regulates key aspects of freshwater ecosystems yet its variability and subsequent predictability is poorly understood. We estimated within‐lake variation in biomass using high‐frequency chlorophyll fluorescence data from 18 globally distributed lakes. We tested how variation in fluorescence at monthly, daily, and hourly scales was related to high‐frequency variability of wind, water temperature, and radiation within lakes as well as productivity and physical attributes among lakes. Within lakes, monthly variation dominated, but combined daily and hourly variation were equivalent to that expressed monthly. Among lakes, biomass variability increased with trophic status while, within‐lake biomass variation increased with increasing variability in wind speed. Our results highlight the benefits of high‐frequency chlorophyll monitoring and suggest that predicted changes associated with climate, as well as ongoing cultural eutrophication, are likely to substantially increase the temporal variability of algal biomass and thus the predictability of the services it provides.

Published
2018

20. A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins

Author

Mantzouki, E., Campbell, J., van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, A., Maronić, D.Š., Stević, F., Pfeiffer, T.Ž., Vucelić, I.B., Žutinić, P., Udovič, M.G., Plenković-Moraj, A., Tsiarta, N., Bláha, L., Geriš, R., Fránková, M., Christoffersen, K.S., Warming, T.P., Feldmann, T., Laas, A., Panksep, K., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Rothhaupt, K.O., Fonvielle, J., Grossart, H.P., Avagianos, C., Kaloudis, T., Triantis, T., Zervou, S.K., Hiskia, A., Gkelis, S., Panou, M., McCarthy, V., de Senerpont Domis, L.N., Seelen, L., Verstijnen, Y., Lürling, M., Maliaka, V., Faassen, E.J., Mantzouki, E., Campbell, J., van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, A., Maronić, D.Š., Stević, F., Pfeiffer, T.Ž., Vucelić, I.B., Žutinić, P., Udovič, M.G., Plenković-Moraj, A., Tsiarta, N., Bláha, L., Geriš, R., Fránková, M., Christoffersen, K.S., Warming, T.P., Feldmann, T., Laas, A., Panksep, K., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Rothhaupt, K.O., Fonvielle, J., Grossart, H.P., Avagianos, C., Kaloudis, T., Triantis, T., Zervou, S.K., Hiskia, A., Gkelis, S., Panou, M., McCarthy, V., de Senerpont Domis, L.N., Seelen, L., Verstijnen, Y., Lürling, M., Maliaka, V., and Faassen, E.J.

Abstract

Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.

Published
2018

21. A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins

Author

European Cooperation in Science and Technology, Hernández, Armand [0000-0001-7245-9863], Mantzouki, E., Campbell, James, van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, Alinne, Maronić, D.Š., Stević, F., Hiskia, A., Gkelis, S., Walusiak, E., Panou, M., McCarthy, V., Budzyńska, A., Perello, V.C., Kostrzewska-Szlakowska, I., Gonçalves, V., Skjelbred, B., Palomino, Roberto L., Obertegger, U., Boscaini, A., Flaim, G., Salmaso, N., Gagala, I., Cerasino, L., Mankiewicz-Boczek, J., Hansson, L. A., Grabowska, M., Karpowicz, M., Rodríguez-Pérez, E., Chmura, D., Nawrocka, L., Kozak, A., Kobos, J., Rosińska, J., Seelen, L., Toporowska, M., Pawlik-Skowronska, B., Urrutia-Cordero, Pablo, Niedźwiecki, M., Maliaka, V., Pęczuła, W., Wasilewicz, M., Napiórkowska-Krzebietke, A., Ochocka, A., Beklioğlu, M., Szeląg-Wasielewska, E., Domek, P., Teurlincx, S., Jakubowska-Krepska, N., Tavşanoğlu, ÜN., Carballeira, R., Kwasizur, K., Drastichova, I., Messyasz, B., Chomova, L., Soylu, E.N., Pasztaleniec, A., Jasser, I., Filiz, N., Antão-Geraldes, A. M., Bilgin, F., Camacho, A., Özen, A., Leira, M., Hernández, Armand, Vasconcelos, V., Remec-Rekar, S., Pfeiffer, T.Ž., Eleršek, Tina, Delgado-Martín, Jordi, Yağcı, M.A., García, D., Bezirci, G., Bláha, L., Bravo, Andrea G., Verstijnen, Y., Cereijo, J. L., Gomà, Joan, Trapote, M.C., Vegas-Vilarrúbia, Teresa, Obrador, B., García-Murcia, A., Real, M., Picazo, Antoni, Vucelić, I.B., Romans, E., Cesur, M., Çınar, Ş., Lürling, M., Levi, E., Noguero-Ribes, J., Duque, D.P., Fernández-Morán, E., Úbeda, B., Yağcı, A., Gálvez, J.Á., Marcé, Rafael, Catalán, N., Buck, Moritz, Pérez-Martínez, Carmen, Ramos-Rodríguez, E., Tsiarta, N., Žutinić, P., Iskin, U., Çapkın, K., Udovič, M.G., Cillero-Castro, C., Moreno-Ostos, Enrique, Blanco, J. M., Rodríguez, V., Plenković-Moraj, Anđelka, Montes-Pérez, J.J., Colom-Montero, W., Koreivienė, J., Rochera, C., Santamans, A. C., Ferriol, C., Romo, S., Faassen, E.J., Soria, J. M., Latour, D., Mazur-Marzec, Hanna, Mustonen, K., Pierson, D., Kasperovičienė, J., Yang, Y., Verspagen, Jolanda M. H., Çelik, K., de Senerpont Domis, L.N., Özhan, K., Dunalska, J., Carey, C.C., Paerl, Hans, Alcaraz-Párraga, P., Torokne, A., Goldyn, R., Karan, T., Bulut, C., Demir, N., Uysal, R., Pełechata, A., Karakaya, N., Koçer, M.A.T., Sieńska, J., Yilmaz, M., Bańkowska-Sobczak, A., Savadova, K., Maraşlıoğlu, F., Geriš, R., Fakioglu, Ö., Fránková, M., Morais, J., Köker, L., Bergkemper, V., Pełechaty, M., O'Leary, S., Nemova, H., Vitonytė, I., Wilk-Woźniak, E., Beirne, E., Cromie, H., Ibelings, Bas W., Christoffersen, K. S., Warming, T.P., Feldmann, T., Laas, A., Vale, M., Panksep, K., Frąk, M., Kokocinski, M., Krztoń, W., Szymański, D., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Haande, S., Rothhaupt, K. O., Fonvielle, J., Krstić, S., Raposeiro, P. M., Kruk, M., Madrecka, B., Grossart, Hans-Peter, Avagianos, C., Kaloudis, T., Triantis, T., Aleksovski, B., Zervou, S. K., European Cooperation in Science and Technology, Hernández, Armand [0000-0001-7245-9863], Mantzouki, E., Campbell, James, van Loon, E., Visser, P., Konstantinou, I., Antoniou, M., Giuliani, G., Machado-Vieira, D., Gurjão de Oliveira, Alinne, Maronić, D.Š., Stević, F., Hiskia, A., Gkelis, S., Walusiak, E., Panou, M., McCarthy, V., Budzyńska, A., Perello, V.C., Kostrzewska-Szlakowska, I., Gonçalves, V., Skjelbred, B., Palomino, Roberto L., Obertegger, U., Boscaini, A., Flaim, G., Salmaso, N., Gagala, I., Cerasino, L., Mankiewicz-Boczek, J., Hansson, L. A., Grabowska, M., Karpowicz, M., Rodríguez-Pérez, E., Chmura, D., Nawrocka, L., Kozak, A., Kobos, J., Rosińska, J., Seelen, L., Toporowska, M., Pawlik-Skowronska, B., Urrutia-Cordero, Pablo, Niedźwiecki, M., Maliaka, V., Pęczuła, W., Wasilewicz, M., Napiórkowska-Krzebietke, A., Ochocka, A., Beklioğlu, M., Szeląg-Wasielewska, E., Domek, P., Teurlincx, S., Jakubowska-Krepska, N., Tavşanoğlu, ÜN., Carballeira, R., Kwasizur, K., Drastichova, I., Messyasz, B., Chomova, L., Soylu, E.N., Pasztaleniec, A., Jasser, I., Filiz, N., Antão-Geraldes, A. M., Bilgin, F., Camacho, A., Özen, A., Leira, M., Hernández, Armand, Vasconcelos, V., Remec-Rekar, S., Pfeiffer, T.Ž., Eleršek, Tina, Delgado-Martín, Jordi, Yağcı, M.A., García, D., Bezirci, G., Bláha, L., Bravo, Andrea G., Verstijnen, Y., Cereijo, J. L., Gomà, Joan, Trapote, M.C., Vegas-Vilarrúbia, Teresa, Obrador, B., García-Murcia, A., Real, M., Picazo, Antoni, Vucelić, I.B., Romans, E., Cesur, M., Çınar, Ş., Lürling, M., Levi, E., Noguero-Ribes, J., Duque, D.P., Fernández-Morán, E., Úbeda, B., Yağcı, A., Gálvez, J.Á., Marcé, Rafael, Catalán, N., Buck, Moritz, Pérez-Martínez, Carmen, Ramos-Rodríguez, E., Tsiarta, N., Žutinić, P., Iskin, U., Çapkın, K., Udovič, M.G., Cillero-Castro, C., Moreno-Ostos, Enrique, Blanco, J. M., Rodríguez, V., Plenković-Moraj, Anđelka, Montes-Pérez, J.J., Colom-Montero, W., Koreivienė, J., Rochera, C., Santamans, A. C., Ferriol, C., Romo, S., Faassen, E.J., Soria, J. M., Latour, D., Mazur-Marzec, Hanna, Mustonen, K., Pierson, D., Kasperovičienė, J., Yang, Y., Verspagen, Jolanda M. H., Çelik, K., de Senerpont Domis, L.N., Özhan, K., Dunalska, J., Carey, C.C., Paerl, Hans, Alcaraz-Párraga, P., Torokne, A., Goldyn, R., Karan, T., Bulut, C., Demir, N., Uysal, R., Pełechata, A., Karakaya, N., Koçer, M.A.T., Sieńska, J., Yilmaz, M., Bańkowska-Sobczak, A., Savadova, K., Maraşlıoğlu, F., Geriš, R., Fakioglu, Ö., Fránková, M., Morais, J., Köker, L., Bergkemper, V., Pełechaty, M., O'Leary, S., Nemova, H., Vitonytė, I., Wilk-Woźniak, E., Beirne, E., Cromie, H., Ibelings, Bas W., Christoffersen, K. S., Warming, T.P., Feldmann, T., Laas, A., Vale, M., Panksep, K., Frąk, M., Kokocinski, M., Krztoń, W., Szymański, D., Tuvikene, L., Kangro, K., Häggqvist, K., Salmi, P., Arvola, L., Fastner, J., Straile, D., Haande, S., Rothhaupt, K. O., Fonvielle, J., Krstić, S., Raposeiro, P. M., Kruk, M., Madrecka, B., Grossart, Hans-Peter, Avagianos, C., Kaloudis, T., Triantis, T., Aleksovski, B., and Zervou, S. K.

Abstract

Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent problem resulting from nutrient pollution and climate-change induced stressors, like poor transparency, increased water temperature and enhanced stratification. Consistency in data collection and analysis methods is necessary to achieve fully comparable datasets and for statistical validity, avoiding issues linked to disparate data sources. The European Multi Lake Survey (EMLS) in summer 2015 was an initiative among scientists from 27 countries to collect and analyse lake physical, chemical and biological variables in a fully standardized manner. This database includes in-situ lake variables along with nutrient, pigment and cyanotoxin data of 369 lakes in Europe, which were centrally analysed in dedicated laboratories. Publishing the EMLS methods and dataset might inspire similar initiatives to study across large geographic areas that will contribute to better understanding lake responses in a changing environment.

Published
2018

22. Wind and trophic status explain within and among‐lake variability of algal biomass

Author

Rusak, J. A., primary, Tanentzap, A. J., additional, Klug, J. L., additional, Rose, K. C., additional, Hendricks, S. P., additional, Jennings, E., additional, Laas, A., additional, Pierson, D., additional, Ryder, E., additional, Smyth, R. L., additional, White, D. S., additional, Winslow, L. A., additional, Adrian, R., additional, Arvola, L., additional, de Eyto, E., additional, Feuchtmayr, H., additional, Honti, M., additional, Istvánovics, V., additional, Jones, I. D., additional, McBride, C. G., additional, Schmidt, S. R., additional, Seekell, D., additional, Staehr, P. A., additional, and Zhu, G., additional

Published
2018
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27. Population dynamics and growth of perch in a small, humic lake over a 20-year period - importance of abiotic and biotic factors

Author

Rask, M., Sairanen, S., Vesala, S., Arvola, L., Satu Estlander, Olin, M., Lammi Biological Station, Biological stations, and Environmental Sciences

Subjects
CLIMATE-CHANGE, ROACH RUTILUS-RUTILUS, education, EURASIAN PERCH, 1181 Ecology, evolutionary biology, SMALL FINNISH LAKES, RELATIVE ABUNDANCES, INTERSPECIFIC COMPETITION, YELLOW PERCH, FLUVIATILIS L, EUTROPHIC LAKE, SOUTHERN FINLAND, 1172 Environmental sciences
Published
2014

28. Plankton metabolism and sedimentation in a small boreal lake - a long-term perspective

Author

Arvola, L., Salonen, K., Keskitalo, J., Tulonen, T., Marko Jarvinen, Huotari, J., Lammi Biological Station, and Biological stations

Subjects
CLIMATE-CHANGE, NUTRIENT LIMITATION, MESOCOSM EXPERIMENT, education, GONYOSTOMUM-SEMEN, HIGHLY HUMIC LAKE, DISSOLVED ORGANIC-CARBON, PHYTOPLANKTON PRODUCTION, VALKEA-KOTINEN, ATMOSPHERIC NITROGEN DEPOSITION, DIOXIDE SUPERSATURATION, 1172 Environmental sciences
Published
2014

30. An automated method to monitor lake ice phenology

Author

Pierson, D. C., Weyhenmeyer, Gesa A., Arvola, L., Benson, B., Blenckner, Thorsten, Kratz, T., Livingstone, D. M., Markensten, H., Marzec, G., Pettersson, Kurt, Weathers, K., Pierson, D. C., Weyhenmeyer, Gesa A., Arvola, L., Benson, B., Blenckner, Thorsten, Kratz, T., Livingstone, D. M., Markensten, H., Marzec, G., Pettersson, Kurt, and Weathers, K.

Abstract

A simple method to automatically measure the date of ice-on, the date of ice-off, and the duration of lake ice cover is described. The presence of ice cover is detected by recording water temperature just below the ice/water interface and just above the lake bottom using moored temperature sensors. The occurrence of ice-on rapidly leads to detectible levels of inverse stratification, defined as existing when the upper sensor records a temperature at least 0.1 degrees C below that of the bottom sensor, whereas the occurrence of ice-off leads to the return of isothermal mixing. Based on data from 10 lakes over a total of 43 winter seasons, we found that the timing and duration of inverse stratification monitored by recording temperature sensors compares well with ice cover statistics based on human observation. The root mean square difference between the observer-based and temperature-based estimates was 7.1 d for ice-on, 6.4 d for ice-off, and 10.0 d for the duration of ice cover. The coefficient of determination between the two types of estimates was 0.93, 0.86, and 0.91, respectively. The availability of inexpensive self-contained temperature loggers should allow expanded monitoring of ice cover in a large and diverse array of lakes. Such monitoring is needed to improve our ability to monitor the progression of global climate change, and to improve our understanding of the relationship between climate and ice cover over a wide range of temporal and spatial scales.

Published
2011
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31. An automated method to monitor lake ice phenology

Author

Pierson, D.C., Weyhenmeyer, G. A., Arvola, L., Blenckner, Thorsten, Pierson, D.C., Weyhenmeyer, G. A., Arvola, L., and Blenckner, Thorsten

Abstract

A simple method to automatically measure the date of ice-on, the date of ice-off, and the duration of lake ice cover is described. The presence of ice cover is detected by recording water temperature just below the ice/water interface and just above the lake bottom using moored temperature sensors. The occurrence of ice-on rapidly leads to detectible levels of inverse stratification, defined as existing when the upper sensor records a temperature at least 0.1°C below that of the bottom sensor, whereas the occurrence of ice-off leads to the return of isothermal mixing. Based on data from 10 lakes over a total of 43 winter seasons, we found that the timing and duration of inverse stratification monitored by recording temperature sensors compares well with ice cover statistics based on human observation. The root mean square difference between the observer-based and temperature-based estimates was 7.1 d for ice-on, 6.4 d for ice-off, and 10.0 d for the duration of ice cover. The coefficient of determination between the two types of estimates was 0.93, 0.86, and 0.91, respectively. The availability of inexpensive self-contained temperature loggers should allow expanded monitoring of ice cover in a large and diverse array of lakes. Such monitoring is needed to improve our ability to monitor the progression of global climate change, and to improve our understanding of the relationship between climate and ice cover over a wide range of temporal and spatial scales., Other authors: B. Benson, T. Kratz, D.M. Livingstone, H. Markensten, G. Marzec, K. Pettersson, and K. Weathers

Published
2011
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34. Long-term supra-regional coherence. Final report

Author

Livingstone, D. M., Adrian, R., Arvola, L., Blenckner, T., Dokulil, M. T., George, D. G., Hari, R. E., Jankowski, T., Järvinen, M., Jennings, M., Nic Aonghusa, C., Nõges, P., Nõges, T., Straile, D., Teubner, K., Weyhenmeyer, G. A., Livingstone, D. M., Adrian, R., Arvola, L., Blenckner, T., Dokulil, M. T., George, D. G., Hari, R. E., Jankowski, T., Järvinen, M., Jennings, M., Nic Aonghusa, C., Nõges, P., Nõges, T., Straile, D., Teubner, K., and Weyhenmeyer, G. A.

Published
2005

37. An automated method to monitor lake ice phenology

Author

Pierson, D.C., primary, Weyhenmeyer, G. A., additional, Arvola, L., additional, Benson, B., additional, Blenckner, T., additional, Kratz, T., additional, Livingstone, D.M., additional, Markensten, H., additional, Marzec, G., additional, Pettersson, K., additional, and Weathers, K., additional

Published
2011
Full Text
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