21 results on '"Raposeiro PM"'
Search Results
2. Temperature effects explain continental scale distribution of cyanobacterial toxins
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Sigrid Haande, Christos Avagianos, Vítor Gonçalves, Lisette N. de Senerpont Domis, Carlos Rochera, Ana García-Murcia, Kerstin Häggqvist, Reyhan Akçaalan, Jordi Noguero-Ribes, Mariusz Pełechaty, Wojciech Krztoń, Hans-Peter Grossart, Jutta Fastner, Bárbara Úbeda, Wojciech Pęczuła, Nur Filiz, Justyna Kobos, Juan M. Soria, Elif Neyran Soylu, Lars-Anders Hansson, Filip Stević, Luděk Bláha, Hanna Mazur-Marzec, Jolanda M. H. Verspagen, Burçin Önem, Karl-Otto Rothhaupt, Nico Salmaso, Abdulkadir Yağcı, David Parreño Duque, Ksenija Savadova, Nusret Karakaya, Aleksandra Pełechata, Yvon Verstijnen, Carmen Pérez-Martínez, Pauliina Salmi, Gizem Bezirci, Tuğba Ongun Sevindik, Svetislav Krstić, Rahmi Uysal, Laura Seelen, Eloísa Ramos-Rodríguez, Spela Remec-Rekar, Sven Teurlincx, Monserrat Real, Meriç Albay, Donald C. Pierson, Susana Romo, Kristiina Mustonen, Kirsten Christoffersen, Valentini Maliaka, Estela Rodríguez-Pérez, Joanna Rosińska, Nilsun Demir, Mehmet Tahir Alp, Elvira Romans, João Morais, Daniel Szymański, Danielle Machado-Vieira, Damian Chmura, Evanthia Mantzouki, Teresa Vegas-Vilarrúbia, Antonio Picazo, Mikołaj Kokociński, Anastasia Hiskia, Christine Edwards, Yang Yang, Irma Vitonytė, Mehmet Cesur, Agnieszka Bańkowska-Sobczak, Iwona Kostrzewska-Szlakowska, Nikoletta Tsiarta, Anđelka Plenković-Moraj, Miquel Lürling, Ryszard Gołdyn, Kristel Panksep, Kemal Celik, Anna Kozak, Jose Luis Cereijo, Pablo Urrutia-Cordero, Petra M. Visser, Rodan Geriš, Uğur Işkın, Leonardo Cerasino, Kadir Çapkın, Victor C. Perello, Carmen Cillero-Castro, Arda Özen, Manel Leira, Enrique Moreno-Ostos, Şakir Çinar, Agnieszka Budzyńska, Faruk Maraşlıoğlu, Pedro M. Raposeiro, Theodoros M. Triantis, Agnieszka Pasztaleniec, Sevasti-Kiriaki Zervou, Elżbieta Wilk-Woźniak, Edward Walusiak, Kersti Kangro, Jorge Juan Montes-Pérez, Triantafyllos Kaloudis, Mari Carmen Trapote, Pablo Alcaraz-Párraga, José María Blanco, Marek Kruk, Hans W. Paerl, Lidia Nawrocka, Meryem Beklioglu, Antonio Camacho, Moritz Buck, Biel Obrador, Ilona Gagala, Lauri Arvola, Elżbieta Szeląg-Wasielewska, Petar Žutinić, Giovanna Flaim, Núria Catalán, R. Carballeira, Alinne Gurjão de Oliveira, Magdalena Frąk, Alo Laas, Magdalena Grabowska, Dubravka Špoljarić Maronić, Meral Apaydın Yağcı, Itana Bokan Vucelić, Ana Maria Antão-Geraldes, Tõnu Feldmann, Natalia Jakubowska-Krepska, Trine Perlt Warming, Armand Hernández, Anna C. Santamans, Fuat Bilgin, Cayelan C. Carey, Joana Mankiewicz-Boczek, Elísabeth Fernández-Morán, Mete Yilmaz, Iwona Jasser, Boris Aleksovski, Michał Wasilewicz, Agnieszka Ochocka, David García, Lea Tuvikene, Roberto L. Palomino, B.W. Ibelings, Hatice Tunca, Birger Skjelbred, Joan Gomà, Jūratė Karosienė, Maria G. Antoniou, Vitor Vasconcelos, Mehmet Ali Turan Koçer, Eti E. Levi, Markéta Fránková, Beata Madrecka, Barbara Pawlik-Skowrońska, Jeremy Fonvielle, Korhan Özkan, Maciej Karpowicz, Özden Fakioglu, Lucia Chomova, Magdalena Toporowska, Ülkü Nihan Tavşanoğlu, Jūratė Kasperovičienė, Latife Köker, Kinga Kwasizur, Koray Ozhan, Valeriano Rodríguez, William Colom-Montero, Ulrike Obertegger, Micaela Vale, Spyros Gkelis, Michał Niedźwiecki, Tunay Karan, Piotr Domek, Judita Koreivienė, Andrea G. Bravo, Justyna Sieńska, Jessica Richardson, Hana Nemova, Cafer Bulut, Jordi Delgado-Martín, Tanja Žuna Pfeiffer, Marija Gligora Udovič, Manthos Panou, Dietmar Straile, Rafael Marcé, Valerie McCarthy, Iveta Drastichova, Agnieszka Napiórkowska-Krzebietke, J. A. Gálvez, Tina Elersek, Beata Messyasz, Adriano Boscaini, Carmen Ferriol, Julita Dunalska, Freshwater and Marine Ecology (IBED, FNWI), BAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü, Karakaya, Nusret, Universitat de Barcelona, Fakülteler, Fen - Edebiyat Fakültesi, Biyoloji Bölümü, Soylu, Elif Neyran, European Cooperation in Science and Technology, Université de Genève, Tokat Gaziosmanpaşa Üniversitesi, Lammi Biological Station, Doctoral Programme in Atmospheric Sciences, CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Yılmaz, Mete, Institute of Agricultural and Environmental Sciences, Mantzouki, Evanthia, Ibelings, Bastiaan Willem, Mantzouki, E, Lurling, M, Fastner, J, Domis, LD, Wilk-Wozniak, E, Koreiviene, J, Seelen, L, Teurlincx, S, Verstijnen, Y, Krzton, W, Walusiak, E, Karosiene, J, Kasperoviciene, J, Savadova, K, Vitonyte, I, Cillero-Castro, C, Budzynska, A, Goldyn, R, Kozak, A, Rosinska, J, Szelag-Wasielewska, E, Domek, P, Jakubowska-Krepska, N, Kwasizur, K, Messyasz, B, Pelechata, A, Pelechaty, M, Kokocinski, M, Garcia-Murcia, A, Real, M, Romans, E, Noguero-Ribes, J, Duque, DP, Fernandez-Moran, E, Karakaya, N, Haggqvist, K, Demir, N, Beklioglu, M, Filiz, N, Levi, EE, Iskin, U, Bezirci, G, Tavsanoglu, UN, Ozhan, K, Gkelis, S, Panou, M, Fakioglu, O, Avagianos, C, Kaloudis, T, Celik, K, Yilmaz, M, Marce, R, Catalan, N, Bravo, AG, Buck, M, Colom-Montero, W, Mustonen, K, Pierson, D, Yang, Y, Raposeiro, PM, Goncalves, V, Antoniou, MG, Tsiarta, N, McCarthy, V, Perello, VC, Feldmann, T, Laas, A, Panksep, K, Tuvikene, L, Gagala, I, Mankiewicz-Boczek, J, Yagci, MA, Cinar, S, Capkin, K, Yagci, A, Cesur, M, Bilgin, F, Bulut, C, Uysal, R, Obertegger, U, Boscaini, A, Flaim, G, Salmaso, N, Cerasino, L, Richardson, J, Visser, PM, Verspagen, JMH, Karan, T, Soylu, EN, Maraslioglu, F, Napiorkowska-Krzebietke, A, Ochocka, A, Pasztaleniec, A, Antao-Geraldes, AM, Vasconcelos, V, Morais, J, Vale, M, Koker, L, Akcaalan, R, Albay, M, Maronic, DS, Stevic, F, Pfeiffer, TZ, Fonvielle, J, Straile, D, Rothhaupt, KO, Hansson, LA, Urrutia-Cordero, P, Blaha, L, Geris, R, Frankova, M, Kocer, MAT, Alp, MT, Remec-Rekar, S, Elersek, T, Triantis, T, Zervou, SK, Hiskia, A, Haande, S, Skjelbred, B, Madrecka, B, Nemova, H, Drastichova, I, Chomova, L, Edwards, C, Sevindik, TO, Tunca, H, Onem, B, Aleksovski, B, Krstic, S, Vucelic, IB, Nawrocka, L, Salmi, P, Machado-Vieira, D, de Oliveira, AG, Delgado-Martin, J, Garcia, D, Cereijo, JL, Goma, J, Trapote, MC, Vegas-Vilarrubia, T, Obrador, B, Grabowska, M, Karpowicz, M, Chmura, D, Ubeda, B, Galvez, JA, Ozen, A, Christoffersen, KS, Warming, TP, Kobos, J, Mazur-Marzec, H, Perez-Martinez, C, Ramos-Rodriguez, E, Arvola, L, Alcaraz-Parraga, P, Toporowska, M, Pawlik-Skowronska, B, Niedzwiecki, M, Peczula, W, Leira, M, Hernandez, A, Moreno-Ostos, E, Blanco, JM, Rodriguez, V, Montes-Perez, JJ, Palomino, RL, Rodriguez-Perez, E, Carballeira, R, Camacho, A, Picazo, A, Rochera, C, Santamans, AC, Ferriol, C, Romo, S, Soria, JM, Dunalska, J, Sienska, J, Szymanski, D, Kruk, M, Kostrzewska-Szlakowska, I, Jasser, I, Zutinic, P, Udovic, MG, Plenkovic-Moraj, A, Frak, M, Bankowska-Sobczak, A, Wasilewicz, M, Ozkan, K, Maliaka, V, Kangro, K, Grossart, HP, Paerl, HW, Carey, CC, Ibelings, BW, Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü, Ongun Sevindik, Tuğba, Tunca, Hatice, Hitit Üniversitesi, Fen Edebiyat Fakültesi, Biyoloji Bölümü, and Fen Edebiyat Fakültesi
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light climate ,0106 biological sciences ,thermocline ,Bacterial toxins ,toksiinit ,limit of quantitation ,Toxines bacterianes ,Microcystin-LR ,Toxicology ,01 natural sciences ,Anatoxin-a ,analogs and derivatives ,BLOOMS ,Direct Effects ,uracil ,Water Pollutants ,chemistry.chemical_classification ,Temperatures ,FRESH-WATER ,latitude ,maximum buoyancy frequency ,6. Clean water ,climate change ,Indirect effects ,EUTROPHICATION ,microcystin RR ,articles ,GROWTH ,lämpötila ,LAKES ,microcystin ,anatoxin ,cylindrospermopsin ,temperature ,direct effects ,indirect effects ,spatial distribution ,European Multi Lake Survey ,epilimnetic temperature ,ta1172 ,cyanobacteria, lakes, climate warming, microcystin ,Zoology ,Article ,water pollutant ,MICROCYSTIS-AERUGINOSA ,Alkaloids ,Settore BIO/07 - ECOLOGIA ,NATURAL SCIENCES. Biology ,Spatial distribution ,Microcystis aeruginosa ,Uracil ,lake ,syanobakteerit ,Indirect Effects ,liquid chromatography-mass spectrometry ,1172 Environmental sciences ,Ekologi ,nutrient ,010604 marine biology & hydrobiology ,lcsh:R ,microbiology ,Climatic changes ,microcystin LR ,Anatoxin ,Lakes ,Spatial Distribution ,chemistry ,nodularin ,microbial diversity ,phytoplankton ,ta1181 ,Cylindrospermopsin ,Tropanes ,Cyanobacteria ,Aquatic Ecology and Water Quality Management ,analysis ,Health, Toxicology and Mutagenesis ,lcsh:Medicine ,environmental parameters ,010501 environmental sciences ,medicine.disease_cause ,nitrogen ,chemistry.chemical_compound ,sea surface temperature ,environmental factor ,ddc:550 ,Canvi climàtic ,phosphorus ,PRIRODNE ZNANOSTI. Biologija ,limit of detection ,Ecology ,Cyanobacteria Toxins ,biology ,Temperature ,levinneisyys ,Nodularin ,tropane derivative ,Europe ,DAPHNIA-MAGNA ,İndirect Effects ,Direct effects ,microbial community ,Environmental Monitoring ,high performance liquid chromatography ,Microcystins ,Climate Change ,Bacterial Toxins ,Microcystin ,välittömät oikeusvaikutukset ,cyanobacterium ,ddc:570 ,geographic distribution ,medicine ,bacterial toxin ,controlled study ,ddc:610 ,Institut für Biochemie und Biologie ,0105 earth and related environmental sciences ,nonhuman ,WIMEK ,Toxin ,longitude ,PHYTOPLANKTON ASSEMBLAGES ,Aquatic Ecology ,NITROGEN AVAILABILITY ,anatoxin a ,Aquatische Ecologie en Waterkwaliteitsbeheer ,biology.organism_classification ,Climatic change ,CLIMATE ,13. Climate action ,response variable ,Canvis climàtics - Abstract
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota. Generalized linear models showed that a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability. Increases in TDI were explained through a significant increase in toxin variants such as MC-YR, anatoxin and cylindrospermopsin, accompanied by a decreasing presence of MC-LR. While global warming continues, the direct and indirect effects of increased lake temperatures will drive changes in the distribution of cyanobacterial toxins in Europe, potentially promoting selection of a few highly toxic species or strains. © 2018 by the authors. Licensee MDPI, Basel, Switzerland., The authors acknowledge COST Action ES 1105 “CYANOCOST—Cyanobacterial blooms and toxins in water resources: Occurrence impacts and management” and COST Action ES 1201 “NETLAKE—Networking Lake Observatories in Europe” for contributing to this study through networking and knowledge sharing with European experts in the field. Evanthia Mantzouki was supported by a grant from the Swiss State Secretariat for Education, Research and Innovation (SERI) to Bas Ibelings and by supplementary funding from the University of Geneva. We thank Clare Ahnlund, Ena Suarez and Irene Gallego for helping out with the Swiss survey. We thank Wendy Beekman and Els J. Faassen for the nutrient and toxin analysis.
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- 2018
3. Data Descriptor: A European Multi Lake Survey dataset of environmental variables, phytoplankton pigments and cyanotoxins
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Tunca, Hatice, Mantzouki, E, Campbell, J, van Loon, E, Visser, P, Konstantinou, I, Antoniou, M, Giuliani, G, Machado-Vieira, D, de Oliveira, AG, Maronic, DS, Stevic, F, Pfeiffer, TZ, Vucelic, IB, Zutinic, P, Udovic, MG, Plenkovic-Moraj, A, Tsiarta, N, Blaha, L, Geris, R, Frankova, M, Christoffersen, KS, Warming, TP, Feldmann, T, Laas, A, Panksep, K, Tuvikene, L, Kangro, K, Haggqvist, K, Salmi, P, Arvola, L, Fastner, J, Straile, D, Rothhaupt, KO, Fonvielle, J, Grossart, HP, Avagianos, C, Kaloudis, T, Triantis, T, Zervou, SK, Hiskia, A, Gkelis, S, Panou, M, McCarthy, V, Perello, VC, Obertegger, U, Boscaini, A, Flaim, G, Salmaso, N, Cerasino, L, Koreiviene, J, Karosiene, J, Kasperoviciene, J, Savadova, K, Vitonyte, I, Haande, S, Skjelbred, B, Grabowska, M, Karpowicz, M, Chmura, D, Nawrocka, L, Kobos, J, Mazur-Marzec, H, Alcaraz-Parraga, P, Wilk-Wozniak, E, Krzton, W, Walusiak, E, Gagala, I, Mankiewicz-Boczek, J, Toporowska, M, Pawlik-Skowronska, B, Niedzwiecki, M, Peczula, W, Napiorkowska-Krzebietke, A, Dunalska, J, Sienska, J, Szymanski, D, Kruk, M, Budzynska, A, Goldyn, R, Kozak, A, Rosinska, J, Szelag-Wasielewska, E, Domek, P, Jakubowska-Krepska, N, Kwasizur, K, Messyasz, B, Pelechata, A, Pelechaty, M, Kokocinski, M, Madrecka, B, Kostrzewska-Szlakowska, I, Frak, M, Bankowska-Sobczak, A, Wasilewicz, M, Ochocka, A, Pasztaleniec, A, Jasser, I, Antao-Geraldes, AM, Leira, M, Hernandez, A, Vasconcelos, V, Morais, J, Vale, M, Raposeiro, PM, Goncalves, V, Aleksovski, B, Krstic, S, Nemova, H, Drastichova, I, Chomova, L, Remec-Rekar, S, Elersek, T, Delgado-Martin, J, Garcia, D, Cereijo, JL, Goma, J, Trapote, MC, Vegas-Vilarrubia, T, Obrador, B, Garcia-Murcia, A, Real, M, Romans, E, Noguero-Ribes, J, Duque, DP, Fernandez-Moran, E, Ubeda, B, Galvez, JA, Marce, R, Catalan, N, Perez-Martinez, C, Ramos-Rodriguez, E, Cillero-Castro, C, Moreno-Ostos, E, Blanco, JM, Rodriguez, V, Montes-Perez, JJ, Palomino, RL, Rodriguez-Perez, E, Carballeira, R, Camacho, A, Picazo, A, Rochera, C, Santamans, AC, Ferriol, C, Romo, S, Soria, JM, Hansson, LA, Urrutia-Cordero, P, Ozen, A, Bravo, AG, Buck, M, Colom-Montero, W, Mustonen, K, Pierson, D, Yang, Y, Verspagen, JMH, Domis, LND, Seelen, L, Teurlincx, S, Verstijnen, Y, Lurling, M, Maliaka, V, Faassen, EJ, Latour, D, Carey, CC, Paerl, HW, Torokne, A, Karan, T, Demir, N, Beklioglu, M, Filiz, N, Levi, EE, Iskin, U, Bezirci, G, Tavsanoglu, UN, Celik, K, Ozhan, K, Karakaya, N, Kocer, MAT, Yilmaz, M, Maraslioglu, F, Fakioglu, O, Soylu, EN, Yagci, MA, Cinar, S, Capkin, K, Yagci, A, Cesur, M, Bilgin, F, Bulut, C, Uysal, R, Koker, L, Akcaalan, R, Albay, M, Alp, MT, Ozkan, K, Sevindik, TO, Tunca, H, Onem, B, Richardson, J, Edwards, C, Bergkemper, V, O'Leary, S, Beirne, E, Cromie, H, Ibelings, BW, Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü, and Tunca, Hatice
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Science & Technology - Other Topics - 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.
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- 2018
4. Identifying imprints of externally derived dust and halogens in the sedimentary record of an Iberian alpine lake for the past ∼13,500 years - Lake Peixão, Serra da Estrela (Central Portugal).
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Moreno J, Ramos AM, Raposeiro PM, Santos RN, Rodrigues T, Naughton F, Moreno F, Trigo RM, Ibañez-Insa J, Ludwig P, Shi X, and Hernández A
- Abstract
Iberian lacustrine sediments are a valuable archive to document environmental changes since the last glacial termination, seen as key for anticipating future climate/environmental changes and their far-reaching implications for generations to come. Herein, multi-proxy-based indicators of a mountain lake record from Serra da Estrela were used to reconstruct atmospheric (in)fluxes and associated climatic/environmental changes over the last ∼13.5 ka. Depositions of long-range transported dust (likely from the Sahara) and halogens (primarily derived from seawater) were higher for the pre-Holocene, particularly in the late Bølling-Allerød-Younger Dryas period, compared to the Holocene. This synchronous increase could be related to a recognized dust-laden atmosphere, along with the combined effect of (i) an earlier proposed effective transport of Sahara dust for higher latitudes during cold periods and (ii) the progressive Polar Front expansion southwards, with the amplification of halogen activation reactions in lower latitudes due to greater closeness to snow/sea ice (halide-laden) surfaces. Additionally, the orographic blocking of Serra da Estrela may have played a critical role in increasing precipitation of Atlantic origin at higher altitudes, with the presence of snow prompting physical and chemical processes involving halogen species. In the Late Holocene, the dust proxy records highlighted two periods of enhanced input to Lake Peixão, the first (∼3.5-2.7 ka BP) after the end of the last African Humid Period and the second, from the 19th century onwards, agreeing with the advent of commercial agriculture, and human contribution to land degradation and dust emission in the Sahara/Sahel region. The oceanic imprints throughout the Holocene matched well with North Atlantic rapid climatic changes that, in turn, coincided with ice-rafted debris or Bond events and other records of increased storminess for the European coasts. Positive parallel peaks in halogens were found in recent times, probably connected to fire extinction by halogenated alkanes and roadway de-icing., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
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- 2023
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5. Plastic debris in lakes and reservoirs.
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Nava V, Chandra S, Aherne J, Alfonso MB, Antão-Geraldes AM, Attermeyer K, Bao R, Bartrons M, Berger SA, Biernaczyk M, Bissen R, Brookes JD, Brown D, Cañedo-Argüelles M, Canle M, Capelli C, Carballeira R, Cereijo JL, Chawchai S, Christensen ST, Christoffersen KS, de Eyto E, Delgado J, Dornan TN, Doubek JP, Dusaucy J, Erina O, Ersoy Z, Feuchtmayr H, Frezzotti ML, Galafassi S, Gateuille D, Gonçalves V, Grossart HP, Hamilton DP, Harris TD, Kangur K, Kankılıç GB, Kessler R, Kiel C, Krynak EM, Leiva-Presa À, Lepori F, Matias MG, Matsuzaki SS, McElarney Y, Messyasz B, Mitchell M, Mlambo MC, Motitsoe SN, Nandini S, Orlandi V, Owens C, Özkundakci D, Pinnow S, Pociecha A, Raposeiro PM, Rõõm EI, Rotta F, Salmaso N, Sarma SSS, Sartirana D, Scordo F, Sibomana C, Siewert D, Stepanowska K, Tavşanoğlu ÜN, Tereshina M, Thompson J, Tolotti M, Valois A, Verburg P, Welsh B, Wesolek B, Weyhenmeyer GA, Wu N, Zawisza E, Zink L, and Leoni B
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- Ecosystem, Surveys and Questionnaires, Urbanization, Human Activities, Lakes chemistry, Plastics analysis, Plastics classification, Water Pollution analysis, Water Pollution statistics & numerical data, Water Supply
- Abstract
Plastic debris is thought to be widespread in freshwater ecosystems globally
1 . However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3 . Here we present a standardized cross-national survey that assesses the abundance and type of plastic debris (>250 μm) in freshwater ecosystems. We sample surface waters of 38 lakes and reservoirs, distributed across gradients of geographical position and limnological attributes, with the aim to identify factors associated with an increased observation of plastics. We find plastic debris in all studied lakes and reservoirs, suggesting that these ecosystems play a key role in the plastic-pollution cycle. Our results indicate that two types of lakes are particularly vulnerable to plastic contamination: lakes and reservoirs in densely populated and urbanized areas and large lakes and reservoirs with elevated deposition areas, long water-retention times and high levels of anthropogenic influence. Plastic concentrations vary widely among lakes; in the most polluted, concentrations reach or even exceed those reported in the subtropical oceanic gyres, marine areas collecting large amounts of debris4 . Our findings highlight the importance of including lakes and reservoirs when addressing plastic pollution, in the context of pollution management and for the continued provision of lake ecosystem services., (© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2023
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6. Distribution and diversity of cyanobacteria in the Azores Archipelago: An annotated checklist.
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Luz R, Cordeiro R, Fonseca A, Raposeiro PM, and Gonçalves V
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Background: Knowledge about cyanobacteria diversity in the Azores is spread over several publications, dating from 1874, with some of them not generally available to the scientific community due to their restricted access. The dispersion and sometimes inaccessibility of this information hinder a deeper analysis and a better understanding of the biodiversity of the Azores Islands and more general ecological processes in oceanic islands. Here we present the first checklist of cyanobacteria for the Azores Archipelago with updated taxonomy of all recorded taxa., New Information: This work provides a compiled and annotated checklist of all known cyanobacteria from the Azores Archipelago with morphological identification from preserved samples and cultures, based on published literature. All records of taxa known to occur in the Azores were taxonomically updated. The present checklist comprises 225 taxa distributed by six orders (Chroococcales, Nostocales, Oscillatoriales, Pleurocapsales, Spirulinales and Synechococcales). Our literature review reveals that the Azores Archipelago hosts a high diversity of cyanobacteria, despite several overlooked habitats that may present great potential regarding cyanobacteria diversity. Increasing efforts to study these neglected habitats could contribute to the knowledge of cyanobacteria taxonomy. This checklist provides the basis for future works on the taxonomy and taxa richness of cyanobacteria in the Azores and the Atlantic Islands, as also for understanding and monitoring non-indigenous and invasive species., (Rúben Luz, Rita Cordeiro, Amélia Fonseca, Pedro Miguel Raposeiro, Vítor Gonçalves.)
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- 2022
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7. The vanishing and the establishment of a new ecosystem on an oceanic island - Anthropogenic impacts with no return ticket.
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Ritter C, Gonçalves V, Pla-Rabes S, de Boer EJ, Bao R, Sáez A, Hernández A, Sixto M, Richter N, Benavente M, Prego R, Giralt S, and Raposeiro PM
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- Anthropogenic Effects, Climate Change, Humans, Lakes, Diatoms, Ecosystem
- Abstract
A multiproxy approach was applied to a sediment core retrieved from the deep crater Lake Funda, located in the middle of the North Atlantic Ocean on Flores Island, Azores archipelago (Portugal). The purpose of this study was to determine how this ecosystem responded to natural and anthropogenic forces over the last millennium. We distinguished three main phases in lake evolution using multiproxy reconstructions and documentary sources. (A) Climate and lake catchment processes, as well as internal ones, were the main drivers of ecosystem variability before 1335 CE, when human disturbances were absent in the Lake Funda catchment. (B) The second phase is marked by unprecedented changes in all studied proxies between 1335 and 1560 CE, including abrupt changes in the composition and diversity of diatom and chironomid assemblages. Synergistic effects from high climate variability and the onset of human disturbances in the catchment (e.g., introduction of livestock) during the Medieval Climate Anomaly-Little Ice Age transition, led to an increase in lake trophic state from mesotrophic to eutrophic conditions. (C) In the last phase (1560 CE to the present), the eutrophic conditions in Lake Funda were maintained through a positive feedback loop between lake productivity and in-lake phosphorous recycling. Variability within the lake ecosystem was mainly associated with climate variability and internal lake dynamics (e.g., phosphorus remobilization). Our results show that a paleoecological approach is crucial to understanding lake ecological states in the present-day in order to develop locally adapted management and restoration strategies. A long-term perspective enables us to understand the harmful consequences of ongoing climate change and human disturbances on lake ecosystems., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2022
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8. Aquatic macroinvertebrates in Madeira Island (Portugal) streams: diversity and distribution.
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Raposeiro PM, Balibrea A, Riva JC, Ritter CJFR, and Gonçalves V
- Abstract
Background: The Madeira Island (Portugal; 32°24'-33°07'N, 16°16-17°16'W; 796 km
2 ) is an oceanic island located in the North Atlantic, about 980 km south of Portugal and about 700 km west of the African coast. The presence of freshwater invertebrates in oceanic islands has always raised questions concerning dispersal, colonisation and evolution. Therefore, the freshwater fauna of Madeira Island has attracted the interest of many researchers in the past, the first publications going back to the nineteenth century. Initial studies were mainly taxonomic, resulting in a checklist of the Madeira freshwater macroinvertebrates with 240 taxa. As typical from oceanic islands, freshwater invertebrates are characterised by low diversity, with some taxonomic groups absent. Although freshwater Madeiran macroinvertebrates are a well-studied group, geographical information of diversity distribution is still scarce. Therefore, more studies are needed, especially georeferenced data of diversity and distribution of macroinvertebrate assemblages, to provide valuable information for improving knowledge and the development of typologically appropriate monitoring and conservation programmes and restoration strategies for local stakeholders., New Information: The results of the present study revealed 713 occurrences in 40 sampling points in Madeira Island streams. The occurrence data showed 70 different aquatic taxa belonging to 21 orders and 53 families. Amongst our occurrence data, 15 endemic taxa (22.1%) from Madeira Archipelago were found. In addition, different families of Collembola and different taxa of Copepoda (Onychiuridae, Poduridae, Isotomidae, Entomobryidae, Sminthuridae) comprised new records for the Madeira streams. Therefore, further taxonomic and ecological studies on freshwater invertebrates from Madeira Island should be done with a particular focus on these lesser-known groups. Thus, our data increase the geographical data distribution of freshwater macroinvertebrates and their diversity in Madeira Island. This database is an update of geographical information of diversity distribution of Madeira freshwater macroinvertebrates known groups. This information is essential for a better understanding of community composition, diversity, occurrence or spatial distribution, which will help explore different research questions on different research areas, such as community ecology and biogeography., (Pedro M. Raposeiro, Ana Balibrea, Julie-Camile Riva, Catarina Johanna Fernandes Rodrigues Ritter, Vítor Gonçalves.)- Published
- 2022
- Full Text
- View/download PDF
9. Reply to Elias et al.: Multiproxy evidence of widespread landscape disturbance in multiple Azorean lakes before the Portuguese arrival.
- Author
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Raposeiro PM, Hernández A, Pla-Rabes S, Gonçalves V, Bao R, Sáez A, Shanahan T, Benavente M, de Boer EJ, Richter N, Gordon V, Marques H, Sousa PM, Souto M, Matias MG, Aguiar N, Pereira C, Ritter C, Rubio MJ, Salcedo M, Vázquez-Loureiro D, Margalef O, Amaral-Zettler LA, Costa AC, Huang Y, van Leeuwen JFN, Masqué P, Prego R, Ruiz-Fernández AC, Sanchez-Cabeza JA, Trigo R, and Giralt S
- Subjects
- Animals, Ethnicity, Humans, Portugal, Gastropoda, Lakes
- Abstract
Competing Interests: The authors declare no competing interest.
- Published
- 2022
- Full Text
- View/download PDF
10. Climate change facilitated the early colonization of the Azores Archipelago during medieval times.
- Author
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Raposeiro PM, Hernández A, Pla-Rabes S, Gonçalves V, Bao R, Sáez A, Shanahan T, Benavente M, de Boer EJ, Richter N, Gordon V, Marques H, Sousa PM, Souto M, Matias MG, Aguiar N, Pereira C, Ritter C, Rubio MJ, Salcedo M, Vázquez-Loureiro D, Margalef O, Amaral-Zettler LA, Costa AC, Huang Y, van Leeuwen JFN, Masqué P, Prego R, Ruiz-Fernández AC, Sanchez-Cabeza JA, Trigo R, and Giralt S
- Subjects
- Agriculture, Azores, Climate Change, Climate Models, Feces chemistry, Humans, Ecosystem, Environment, Human Activities, Human Migration
- Abstract
Humans have made such dramatic and permanent changes to Earth's landscapes that much of it is now substantially and irreversibly altered from its preanthropogenic state. Remote islands, until recently isolated from humans, offer insights into how these landscapes evolved in response to human-induced perturbations. However, little is known about when and how remote systems were colonized because archaeological data and historical records are scarce and incomplete. Here, we use a multiproxy approach to reconstruct the initial colonization and subsequent environmental impacts on the Azores Archipelago. Our reconstructions provide unambiguous evidence for widespread human disturbance of this archipelago starting between 700
-60 +50 and 850-60 +60 Common Era (CE), ca. 700 y earlier than historical records suggest the onset of Portuguese settlement of the islands. Settlement proceeded in three phases, during which human pressure on the terrestrial and aquatic ecosystems grew steadily (i.e., through livestock introductions, logging, and fire), resulting in irreversible changes. Our climate models suggest that the initial colonization at the end of the early Middle Ages (500 to 900 CE) occurred in conjunction with anomalous northeasterly winds and warmer Northern Hemisphere temperatures. These climate conditions likely inhibited exploration from southern Europe and facilitated human settlers from the northeast Atlantic. These results are consistent with recent archaeological and genetic data suggesting that the Norse were most likely the earliest settlers on the islands., Competing Interests: The authors declare no competing interest.- Published
- 2021
- Full Text
- View/download PDF
11. Distribution of testate amoebae in bryophyte communities in São Miguel Island (Azores Archipelago).
- Author
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Souto MS, Gonçalves V, Pontevedra-Pombal X, and Raposeiro PM
- Abstract
Background: Testate amoebae are a polyphyletic group of protists living preferentially in soils, freshwaters and wetlands. These Protozoa have a worldwide distribution, but their presence and diversity in the Azores (a remote oceanic archipelago) is poorly known, with only twelve taxa recorded so far. The published information reflects occasional collections from sporadic field visits from naturalists to São Miguel Island, mainly in the nineteenth century. To overcome this limitation, a standardised survey was carried out on the Island, sampling different types of habitats from several localities to provide the distribution and information on species ecology of testate amoebae., New Information: In this study, 43 species of testate amoebae were recorded (within a total of 499 occurrences), belonging to two orders of Protista (26 Arcellinida and 17 Euglyphida). The most frequently occurring testate amoebae were Euglypha strigosa , Trinema lineare , Euglypha rotunda , Assulina muscorum and Cyclopyxis eurystoma . The most diverse genus was Euglypha (six species). A total of 38 species are new records for the Azores Archipelago. These data help to improve knowledge of the geographical distribution of testate amoebae in the northern hemisphere and their diversity in the Azores Archipelago., (Martin Souto Souto, Vítor Gonçalves, Xabier Pontevedra-Pombal, Pedro M. Raposeiro.)
- Published
- 2021
- Full Text
- View/download PDF
12. Diatoms from small ponds and terrestrial habitats in Deserta Grande Island (Madeira Archipelago).
- Author
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Gonçalves V, Ritter C, Marques H, Teixeira DN, and Raposeiro PM
- Abstract
Background: Freshwater diversity, and diatoms in particular, from Desertas Islands (Madeira Archipelago, Portugal) is poorly known, although the Islands are protected and became a Natural Reserve in 1995. During two field expeditions in 2013 and 2014 to Deserta Grande Island, several freshwater and terrestrial habitats were sampled. The analysis of these samples aims to contribute to the biodiversity assessment of the freshwater biota present in Deserta Grande Island. Here, we present the diatom diversity in Deserta Grande Island resulting from that survey. This study contributes to improve the knowledge of Madeira Archipelago freshwater diversity, particularly in the Desertas sub-archipelago., New Information: To our knowledge, we present the first diatom data for the Desertas sub-archipelago. This work resulted in a list of 60 diatom taxa for Deserta Grande, from which 57 were identified to species level. From the 60 new records for Desertas sub-archipelago, 30 of them were also new records for Madeira Archipelago. Several specimens could not be assigned to a known species and may be new diatom species not yet described., (Vítor Gonçalves, Catarina Ritter, Helena Marques, Dinarte Nuno Teixeira, Pedro M. Raposeiro.)
- Published
- 2021
- Full Text
- View/download PDF
13. Diatom diversity and distribution in Madeira Island streams (Portugal).
- Author
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Ritter C, Raposeiro PM, and Gonçalves V
- Abstract
Background: Here, we present the data obtained from the samples collected in a field campaign during the spring of 2015 which aims for a better understanding of the diversity and distribution patterns of freshwater diatoms in Madeira Island. Following European and Portuguese standards and recommendations for routine diatom sampling and analysis, we collected samples in 40 sites, distributed in 27 permanent streams and identified the diatom species present, using general diatom floras and studies in Portuguese freshwater diatoms., New Information: Little is known about the diversity and distribution of freshwater diatom assemblages from Madeira Archipelago. This study reports a survey in 40 sites in Madeira Island distributed in 27 permanent streams. A total of 965 diatom (Bacillariophyta) occurrences were recorded, belonging to 130 different taxa from 44 genera and 27 families. The families with the highest number of occurrences were Bacillariaceae (176), Achnanthidiaceae (135) and Naviculaceae (133). The two diatom endemisms, described previously in Madeira Island (Lange-Bertalot 1993), Nitzschia macaronesica Lange-Bertalot and Navicula madeirensis Lange-Bertalot, were only observed in a small number of sites, located mostly at Laurissilva forest. Sixty species are new records, not only to Madeira Island, but also to the Madeira Archipelago., (Catarina Ritter, Pedro M. Raposeiro, Vítor Gonçalves.)
- Published
- 2020
- Full Text
- View/download PDF
14. Larval description of Limnephilus atlanticus Nybom 1948, morphological comparison with Limnephilus affinis Curtis 1834, (Trichoptera: Limnephilidae) and additional notes on their ecology in Azores Islands.
- Author
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Balibrea A, GonÇalves V, and Raposeiro PM
- Subjects
- Animals, Azores, Holometabola, Larva, Insecta
- Abstract
This study presents the first morphological description and illustration of the late instar larva of Limnephilus atlanticus Nybom 1948, an endemic caddisfly from the Azores. Taxonomic comparisons with a recently recorded limnephilid species, Limnephilus affinis (Limnephilidae), and notes of their ecology and distribution in the Azores are also provided.
- Published
- 2020
- Full Text
- View/download PDF
15. Aquatic Hyphomycetes from streams on Madeira Island (Portugal).
- Author
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Raposeiro PM, Faustino H, Ferreira V, and Gonçalves V
- Abstract
Background: Aquatic hyphomycetes are a phylogenetically heterogeneous group of fungi living preferentially in fast flowing, well-aerated forest streams. These fungi have worldwide distribution, but with the exception of Articulospora tetracladia , no aquatic hyphomycete taxon was previously recorded on Madeira Island. Aquatic hyphomycetes were sampled from 40 sites, distributed by 27 permanent streams in 2015, to provide the distribution of aquatic hyphomycetes in Madeira Island streams., New Information: In this study, a total of 21 species of aquatic hyphomycetes were recorded belonging to three classes of Ascomycota. All taxa are new records for Madeira Archipelago, except Articulospora tetracladia and four are reported for the first time in Macaronesian biogeographic region., (Pedro M. Raposeiro, Hélder Faustino, Verónica Ferreira, Vítor Gonçalves.)
- Published
- 2020
- Full Text
- View/download PDF
16. Cyanobacteria from freshwater lakes in the Azores archipelago, Portugal: data from long term phytoplankton monitoring.
- Author
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Luz R, Cordeiro R, Vilaverde J, Raposeiro PM, Fonseca A, and Gonçalves V
- Abstract
Background: The Azores are oceanic islands located in the Northern Atlantic Ocean and are particularly rich in aquatic systems, ranging from freshwater, brackish, marine and thermal habitats. Due to the increase in local anthropogenic pressures and global warming, several azorean lakes began to reveal signs of eutrophication that led to the implementation of monitoring programmes and management strategies on the most impacted lakes. Later, the Water Framework Directive (2000/60/EC) demanded the establishment of biomonitoring programmes for European freshwater ecosystems and the limited Azorean monitoring programmes were extended to a larger set of lakes. Since the establishment of the aquatic systems monitoring programme in the Azores archipelago, lakes have been regularly sampled, producing innumerous unpublished records of cyanobacteria that are difficult to access., New Information: Here we present the occurrences of cyanobacteria in Azorean lakes that result from 22 years of phytoplankton monitoring in a total of 1948 cyanobacteria occurrences from 968 phytoplankton sampling events on Azorean lakes done between 1996 and 2018 as part of regional inland aquatic ecosystems monitoring programmes. Forty two cyanobacteria taxa were identified in those events, 28 species and 14 at genus level. This information is crucial for conservation, biodiversity studies and lake management, as some of the cyanobacteria species present are bloom-forming and have the ability to produce toxins. This will also allow for the identification of invasive species and possible targeted control and mitigation programmes, according to the species present in the Azorean lakes., (Rúben Luz, Rita Cordeiro, Joana Vilaverde, Pedro M. Raposeiro, Amélia Fonseca, Vítor Gonçalves.)
- Published
- 2020
- Full Text
- View/download PDF
17. Biodiversity of leaf litter fungi in streams along a latitudinal gradient.
- Author
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Seena S, Bärlocher F, Sobral O, Gessner MO, Dudgeon D, McKie BG, Chauvet E, Boyero L, Ferreira V, Frainer A, Bruder A, Matthaei CD, Fenoglio S, Sridhar KR, Albariño RJ, Douglas MM, Encalada AC, Garcia E, Ghate SD, Giling DP, Gonçalves V, Iwata T, Landeira-Dabarca A, McMaster D, Medeiros AO, Naggea J, Pozo J, Raposeiro PM, Swan CM, Tenkiano NSD, Yule CM, and Graça MAS
- Subjects
- Plant Leaves microbiology, Spatial Analysis, Fungi, Microbiota, Rivers microbiology
- Abstract
Global patterns of biodiversity have emerged for soil microorganisms, plants and animals, and the extraordinary significance of microbial functions in ecosystems is also well established. Virtually unknown, however, are large-scale patterns of microbial diversity in freshwaters, although these aquatic ecosystems are hotspots of biodiversity and biogeochemical processes. Here we report on the first large-scale study of biodiversity of leaf-litter fungi in streams along a latitudinal gradient unravelled by Illumina sequencing. The study is based on fungal communities colonizing standardized plant litter in 19 globally distributed stream locations between 69°N and 44°S. Fungal richness suggests a hump-shaped distribution along the latitudinal gradient. Strikingly, community composition of fungi was more clearly related to thermal preferences than to biogeography. Our results suggest that identifying differences in key environmental drivers, such as temperature, among taxa and ecosystem types is critical to unravel the global patterns of aquatic fungal diversity., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
18. 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 DŠ, Stević F, Pfeiffer TŽ, Vucelić IB, Žutinić P, Udovič MG, Plenković-Moraj A, Tsiarta N, Bláha L, Geriš R, Fránková M, Christoffersen KS, Warming TP, Feldmann T, Laas A, Panksep K, Tuvikene L, Kangro K, Häggqvist K, Salmi P, Arvola L, Fastner J, Straile D, Rothhaupt KO, Fonvielle J, Grossart HP, Avagianos C, Kaloudis T, Triantis T, Zervou SK, Hiskia A, Gkelis S, Panou M, McCarthy V, Perello VC, Obertegger U, Boscaini A, Flaim G, Salmaso N, Cerasino L, Koreivienė J, Karosienė J, Kasperovičienė J, Savadova K, Vitonytė I, Haande S, Skjelbred B, Grabowska M, Karpowicz M, Chmura D, Nawrocka L, Kobos J, Mazur-Marzec H, Alcaraz-Párraga P, Wilk-Woźniak E, Krztoń W, Walusiak E, Gagala I, Mankiewicz-Boczek J, Toporowska M, Pawlik-Skowronska B, Niedźwiecki M, Pęczuła W, Napiórkowska-Krzebietke A, Dunalska J, Sieńska J, Szymański D, Kruk M, Budzyńska A, Goldyn R, Kozak A, Rosińska J, Szeląg-Wasielewska E, Domek P, Jakubowska-Krepska N, Kwasizur K, Messyasz B, Pełechata A, Pełechaty M, Kokocinski M, Madrecka B, Kostrzewska-Szlakowska I, Frąk M, Bańkowska-Sobczak A, Wasilewicz M, Ochocka A, Pasztaleniec A, Jasser I, Antão-Geraldes AM, Leira M, Hernández A, Vasconcelos V, Morais J, Vale M, Raposeiro PM, Gonçalves V, Aleksovski B, Krstić S, Nemova H, Drastichova I, Chomova L, Remec-Rekar S, Elersek T, Delgado-Martín J, García D, Cereijo JL, Gomà J, Trapote MC, Vegas-Vilarrúbia T, Obrador B, García-Murcia A, Real M, Romans E, Noguero-Ribes J, Duque DP, Fernández-Morán E, Úbeda B, Gálvez JÁ, Marcé R, Catalán N, Pérez-Martínez C, Ramos-Rodríguez E, Cillero-Castro C, Moreno-Ostos E, Blanco JM, Rodríguez V, Montes-Pérez JJ, Palomino RL, Rodríguez-Pérez E, Carballeira R, Camacho A, Picazo A, Rochera C, Santamans AC, Ferriol C, Romo S, Soria JM, Hansson LA, Urrutia-Cordero P, Özen A, Bravo AG, Buck M, Colom-Montero W, Mustonen K, Pierson D, Yang Y, M H Verspagen J, de Senerpont Domis LN, Seelen L, Teurlincx S, Verstijnen Y, Lürling M, Maliaka V, Faassen EJ, Latour D, Carey CC, W Paerl H, Torokne A, Karan T, Demir N, Beklioğlu M, Filiz N, E Levi E, Iskin U, Bezirci G, Tavşanoğlu ÜN, Çelik K, Özhan K, Karakaya N, Koçer MAT, Yilmaz M, Maraşlıoğlu F, Fakioglu Ö, Soylu EN, Yağcı MA, Çınar Ş, Çapkın K, Yağcı A, Cesur M, Bilgin F, Bulut C, Uysal R, Köker L, Akçaalan R, Albay M, Alp MT, Özkan K, Sevindik TO, Tunca H, Önem B, Richardson J, Edwards C, Bergkemper V, O'Leary S, Beirne E, Cromie H, and Ibelings BW
- Subjects
- Climate Change, Europe, Phytoplankton chemistry, Pigments, Biological, Cyanobacteria chemistry, Environmental Monitoring, Lakes
- 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
- Full Text
- View/download PDF
19. Temperature Effects Explain Continental Scale Distribution of Cyanobacterial Toxins.
- Author
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Mantzouki E, Lürling M, Fastner J, de Senerpont Domis L, Wilk-Woźniak E, Koreivienė J, Seelen L, Teurlincx S, Verstijnen Y, Krztoń W, Walusiak E, Karosienė J, Kasperovičienė J, Savadova K, Vitonytė I, Cillero-Castro C, Budzyńska A, Goldyn R, Kozak A, Rosińska J, Szeląg-Wasielewska E, Domek P, Jakubowska-Krepska N, Kwasizur K, Messyasz B, Pełechaty A, Pełechaty M, Kokocinski M, García-Murcia A, Real M, Romans E, Noguero-Ribes J, Duque DP, Fernández-Morán E, Karakaya N, Häggqvist K, Demir N, Beklioğlu M, Filiz N, Levi EE, Iskin U, Bezirci G, Tavşanoğlu ÜN, Özhan K, Gkelis S, Panou M, Fakioglu Ö, Avagianos C, Kaloudis T, Çelik K, Yilmaz M, Marcé R, Catalán N, Bravo AG, Buck M, Colom-Montero W, Mustonen K, Pierson D, Yang Y, Raposeiro PM, Gonçalves V, Antoniou MG, Tsiarta N, McCarthy V, Perello VC, Feldmann T, Laas A, Panksep K, Tuvikene L, Gagala I, Mankiewicz-Boczek J, Yağcı MA, Çınar Ş, Çapkın K, Yağcı A, Cesur M, Bilgin F, Bulut C, Uysal R, Obertegger U, Boscaini A, Flaim G, Salmaso N, Cerasino L, Richardson J, Visser PM, Verspagen JMH, Karan T, Soylu EN, Maraşlıoğlu F, Napiórkowska-Krzebietke A, Ochocka A, Pasztaleniec A, Antão-Geraldes AM, Vasconcelos V, Morais J, Vale M, Köker L, Akçaalan R, Albay M, Špoljarić Maronić D, Stević F, Žuna Pfeiffer T, Fonvielle J, Straile D, Rothhaupt KO, Hansson LA, Urrutia-Cordero P, Bláha L, Geriš R, Fránková M, Koçer MAT, Alp MT, Remec-Rekar S, Elersek T, Triantis T, Zervou SK, Hiskia A, Haande S, Skjelbred B, Madrecka B, Nemova H, Drastichova I, Chomova L, Edwards C, Sevindik TO, Tunca H, Önem B, Aleksovski B, Krstić S, Vucelić IB, Nawrocka L, Salmi P, Machado-Vieira D, de Oliveira AG, Delgado-Martín J, García D, Cereijo JL, Gomà J, Trapote MC, Vegas-Vilarrúbia T, Obrador B, Grabowska M, Karpowicz M, Chmura D, Úbeda B, Gálvez JÁ, Özen A, Christoffersen KS, Warming TP, Kobos J, Mazur-Marzec H, Pérez-Martínez C, Ramos-Rodríguez E, Arvola L, Alcaraz-Párraga P, Toporowska M, Pawlik-Skowronska B, Niedźwiecki M, Pęczuła W, Leira M, Hernández A, Moreno-Ostos E, Blanco JM, Rodríguez V, Montes-Pérez JJ, Palomino RL, Rodríguez-Pérez E, Carballeira R, Camacho A, Picazo A, Rochera C, Santamans AC, Ferriol C, Romo S, Soria JM, Dunalska J, Sieńska J, Szymański D, Kruk M, Kostrzewska-Szlakowska I, Jasser I, Žutinić P, Gligora Udovič M, Plenković-Moraj A, Frąk M, Bańkowska-Sobczak A, Wasilewicz M, Özkan K, Maliaka V, Kangro K, Grossart HP, Paerl HW, Carey CC, and Ibelings BW
- Subjects
- Alkaloids, Climate Change, Cyanobacteria Toxins, Environmental Monitoring, Europe, Temperature, Uracil analysis, Bacterial Toxins analysis, Cyanobacteria, Lakes microbiology, Microcystins analysis, Tropanes analysis, Uracil analogs & derivatives, Water Pollutants analysis
- Abstract
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota. Generalized linear models showed that a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability. Increases in TDI were explained through a significant increase in toxin variants such as MC-YR, anatoxin and cylindrospermopsin, accompanied by a decreasing presence of MC-LR. While global warming continues, the direct and indirect effects of increased lake temperatures will drive changes in the distribution of cyanobacterial toxins in Europe, potentially promoting selection of a few highly toxic species or strains., Competing Interests: The authors declare no conflict of interest.
- Published
- 2018
- Full Text
- View/download PDF
20. Annotated checklist of aquatic beetles (Coleoptera) and true bugs (Heteroptera) in the Azores Islands: new records and corrections of colonization status.
- Author
-
Lamelas-López L, Raposeiro PM, Borges PAV, and Florencio M
- Subjects
- Animals, Azores, Biodiversity, Ecosystem, Heteroptera, Coleoptera
- Abstract
In comparison with other Macaronesian archipelagos, Azorean freshwater macroinvertebrates are characterized by a smaller list of species at the archipelago regional scale. Although knowledge of the freshwater fauna of the Azores has improved in recent years through the implementation of the "Water Framework Directive", we are still far from having a complete inventory and even further from knowing the precise distribution and biology of each species. The lack of knowledge about Azorean freshwater species is coupled with the vulnerability of their habitats to anthropogenic disturbances and the introduction of non-native species. In contributing to overcome Wallacean and Hutchinsonian biodiversity shortfalls, we here provide expanded knowledge on the distribution and biology of the freshwater species of Coleoptera and Heteroptera in the Azores. We compile data from various fieldwork performed between 2006 and 2014, encompassing four islands in the archipelago. We detected new records of two aquatic Heteroptera species (belonging to the families Corixidae and Notonectidae) and six of aquatic Coleoptera (belonging to the families Dytiscidae, Gyrinidae, Hydrophilidae and Hydraenidae) in these islands, and also a new record (Enochrus fuscipennis) for the Azorean archipelago. We also suggest that the introduced colonization status of three Coleoptera species of the family Hydrophilidae should be reformulated as possibly native, with implications for conservation.
- Published
- 2017
- Full Text
- View/download PDF
21. Colonization and diversification of aquatic insects on three Macaronesian archipelagos using 59 nuclear loci derived from a draft genome.
- Author
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Rutschmann S, Detering H, Simon S, Funk DH, Gattolliat JL, Hughes SJ, Raposeiro PM, DeSalle R, Sartori M, and Monaghan MT
- Subjects
- Animals, Biodiversity, Biological Evolution, DNA chemistry, DNA isolation & purification, DNA metabolism, Europe, Genetic Loci, Genome, Insecta genetics, Islands, North America, Phylogeny, Phylogeography, Sequence Analysis, DNA, Insecta classification
- Abstract
The study of processes driving diversification requires a fully sampled and well resolved phylogeny, although a lack of phylogenetic markers remains a limitation for many non-model groups. Multilocus approaches to the study of recent diversification provide a powerful means to study the evolutionary process, but their application remains restricted because multiple unlinked loci with suitable variation for phylogenetic or coalescent analysis are not available for most non-model taxa. Here we identify novel, putative single-copy nuclear DNA (nDNA) phylogenetic markers to study the colonization and diversification of an aquatic insect species complex, Cloeon dipterum L. 1761 (Ephemeroptera: Baetidae), in Macaronesia. Whole-genome sequencing data from one member of the species complex were used to identify 59 nDNA loci (32,213 base pairs), followed by Sanger sequencing of 29 individuals sampled from 13 islands of three Macaronesian archipelagos. Multispecies coalescent analyses established six putative species. Three island species formed a monophyletic clade, with one species occurring on the Azores, Europe and North America. Ancestral state reconstruction indicated at least two colonization events from the mainland (to the Canaries, respectively Azores) and one within the archipelago (between Madeira and the Canaries). Random subsets of the 59 loci showed a positive linear relationship between number of loci and node support. In contrast, node support in the multispecies coalescent tree was negatively correlated with mean number of phylogenetically informative sites per locus, suggesting a complex relationship between tree resolution and marker variability. Our approach highlights the value of combining genomics, coalescent-based phylogeography, species delimitation, and phylogenetic reconstruction to resolve recent diversification events in an archipelago species complex., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2017
- Full Text
- View/download PDF
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