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3. Causal networks of phytoplankton diversity and biomass are modulated by environmental context

Author

Chang, Chun-Wei, Miki, Takeshi, Ye, Hao, Souissi, Sami, Adrian, Rita, Anneville, Orlane, Agasild, Helen, Ban, Syuhei, Be’eri-Shlevin, Yaron, Chiang, Yin-Ru, Feuchtmayr, Heidrun, Gal, Gideon, Ichise, Satoshi, Kagami, Maiko, Kumagai, Michio, Liu, Xin, Matsuzaki, Shin-Ichiro S., Manca, Marina M., Nõges, Peeter, Piscia, Roberta, Rogora, Michela, Shiah, Fuh-Kwo, Thackeray, Stephen J., Widdicombe, Claire E., Wu, Jiunn-Tzong, Zohary, Tamar, and Hsieh, Chih-hao

Published
2022
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4. Author Correction: Causal networks of phytoplankton diversity and biomass are modulated by environmental context

Author

Chang, Chun-Wei, Miki, Takeshi, Ye, Hao, Souissi, Sami, Adrian, Rita, Anneville, Orlane, Agasild, Helen, Ban, Syuhei, Be’eri-Shlevin, Yaron, Chiang, Yin-Ru, Feuchtmayr, Heidrun, Gal, Gideon, Ichise, Satoshi, Kagami, Maiko, Kumagai, Michio, Liu, Xin, Matsuzaki, Shin-Ichiro S., Manca, Marina M., Nõges, Peeter, Piscia, Roberta, Rogora, Michela, Shiah, Fuh-Kwo, Thackeray, Stephen J., Widdicombe, Claire E., Wu, Jiunn-Tzong, Zohary, Tamar, and Hsieh, Chih-hao

Published
2022
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5. A geographic distribution data set of biodiversity in Italian freshwaters

Author

Boggero, Angela, Pierri, Cataldo, Alber, Renate, Austoni, Martina, Barbone, Enrico, Bartolozzi, Luca, Bertani, Isabella, Campanaro, Alessandro, Cattaneo, Antonella, Cianferoni, Fabio, Colangelo, Paolo, Corriero, Giuseppe, Dorr, Ambrosius Martin, Elia, A. Concetta, Ficetola, G. Francesco, Fontaneto, Diego, Gaino, Elda, Goretti, Enzo, Kamburska, Lyudmila, La Porta, Gianandrea, Lauceri, Rosaria, Lorenzoni, Massimo, Ludovisi, Alessandro, Manca, Marina, Morabito, Giuseppe, Nonnis Marzano, Francesco, Oggioni, Alessandro, Riccardi, Nicoletta, Rossetti, Giampaolo, Tagliolato, Paolo, Thaler, Bertha, Ungaro, Nicola, Volta, Pietro, Zaupa, Silvia, Rosati, Ilaria, Fiore, Nicola, Basset, Alberto, and Marchetto, Aldo

Subjects
artificial habitats, freshwater biota, lentic waters, LifeWatch, lotic waters, natural habitats, reference collection
Abstract

We present a data set on the biodiversity of Italian freshwaters, including lakeshores and riverbanks of natural (N=379: springs, streams and lakes) and artificial (N=11: fountains) sites. The data set belongs partly to the Italian Long Term Ecological Research network (LTER-Italy) and partly to LifeWatch, the European e-Science infrastructure for biodiversity and ecosystem research. The data included cover a time period corresponding to the last fifty years (1962-2014). They span a large number of taxa from prokaryotes and unicellular eukaryotes to vertebrates and plants, including taxa linked to the aquatic habitat in at least part of their life cycles (like immature stages of insects, amphibians, birds and vascular plants). The data set consists of 6463 occurrence data and distribution records for 1738 species. The complete data set is available in csv file format via the LifeWatch Service Centre.

Published
2016

7. Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Author

Morabito, Giuseppe, Mazzocchi, Maria Grazia, Salmaso, Nico, Zingone, Adriana, Bergami, Caterina, Flaim, Giovanna, Accoroni, Stefano, Basset, Alberto, Bastianini, Mauro, Belmonte, Genuario, Bernardi Aubry, Fabrizio, Bertani, Isabella, Bresciani, Mariano, Buzzi, Fabio, Cabrini, Marina, Camatti, Elisa, Caroppo, Carmela, Cataletto, Bruno, Castellano, Michela, Del Negro, Paola, de Olazabal, Alessandra, Di Capua, Iole, Elia, Antonia Concetta, Fornasaro, Daniela, Giallain, Marina, Grilli, Federica, Leoni, Barbara, Lipizer, Marina, Longobardi, Lorenzo, Ludovisi, Alessandro, Lugliè, Antonella, Manca, Marina, Margiotta, Francesca, Mariani, Maria Antonietta, Marini, Mauro, Marzocchi, Mara, Obertegger, Ulrike, Oggioni, Alessandro, Padedda, Bachisio Mario, Pansera, Marco, Piscia, Roberta, Povero, Paolo, Pulina, Silvia, Romagnoli, Tiziana, Rosati, Ilaria, Rossetti, Giampaolo, Rubino, Fernando, Sarno, Diana, Satta, Cecilia Teodora, Sechi, Nicola, Stanca, Elena, Tirelli, Valentina, Totti, Cecilia, and Pugnetti, Alessandra

Published
2018
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9. Dataset of Contamination (2009–2022) Legacy Contaminants (PCB and DDT) in Zooplankton of Lake Maggiore (CIPAIS, International Commission for the Protection of Italian-Swiss Waters)

Author

Bettinetti, Roberta, primary, Piscia, Roberta, additional, Manca, Marina, additional, Galassi, Silvana, additional, Quadroni, Silvia, additional, Dossi, Carlo, additional, Perna, Rossella, additional, Boggio, Emanuela, additional, Boldrocchi, Ginevra, additional, Mazzoni, Michela, additional, and Villa, Benedetta, additional

Published
2023
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12. Spatial and temporal trends of target organic and inorganic micropollutants in Lake Maggiore and Lake Lugano (Italian-Swiss water bodies): contamination in sediments and biota

Author

Guzzella, Licia Maria, Novati, Stefano, Casatta, Nadia, Roscioli, Claudio, Valsecchi, Lucia, Binelli, Andrea, Parolini, Marco, Solcà, Nicola, Bettinetti, Roberta, Manca, Marina, Mazzoni, Michela, Piscia, Roberta, Volta, Pietro, Marchetto, Aldo, Lami, Andrea, and Marziali, Laura

Published
2018
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20. Seasonality, littoral versus pelagic carbon sources, and stepwise [sup.15]N-enrichment of pelagic food web in a deep subalpine lake: the role of planktivorous fish

Author

Visconti, Anna, Volta, Pietro, Fadda, Amedeo, Guardo, Antonio Di, and Manca, Marina

Subjects
Environment -- Research, Food chains (Ecology) -- Research, Carbon -- Isotopes, Fish populations -- Environmental aspects, Lakes -- Environmental aspects, Earth sciences
Abstract

While the role of littoral food sources in shallow lakes has been widely investigated, uncertainties still exist about the relevance of such sources for deep lakes. Here we report quantitative estimates for the contribution of littoral versus pelagic sources in supporting the three most important planktivorous fish of a deep, large, subalpine lake in Italy. Contributions of pelagic (p) and littoral (q) signatures of δ[sup.13]C and δ[sup.15]N stable isotopes were detected in fish muscular tissue by applying a dynamic baseline mixing model. This model integrates tissue-specific metabolic turnover (m) and fish growth (k) rates over baselines δ[sup.13]C seasonality. Annual fluctuations for both pelagic and littoral baselines were not negligible (ΔC = 10 ‰ and 89 ‰, respectively). We calculated that they could not be ignored, since contributions of pelagic and littoral signatures would be largely underestimated (up to 30% p and 13% q for whitefish (Coregonus lavaretus) and roach (Rutilus rutilus), respectively). When fish relied upon pelagic consumers, stepwise [sup.15]N-enrichment (E) of pelagic preys linearly decreased with prey-size-specific predation pressure. Therefore, longer food webs would be proportionally less stepwise [sup.15]N-enriched than shorter ones. Si le role des sources de nourritures littorales dans les lacs peu profonds a fait l'objet de nombreuses etudes, des incertitudes persistent quant a la pertinence de ces sources en ce qui concerne les lacs profonds. Nous rendons compte d'estimations quantitatives des contributions de sources littorales et pelagiques aux regimes alimentaires des trois plus importants poissons planctonivores d'un grand lac subalpin profond en Italie. Des contributions de signatures d'isotopes stables (δ[sup.13]C et δ[sup.15]N) pelagiques (p) et littorales (q) ont ete detectees dans les tissus musculaires des poissons en appliquant un modele de melange integrant des conditions de base dynamiques. Ce modele integre des taux de renouvellement metabolique (m) propres aux tissus et de croissance des poissons (k)a la saisonnalite des signatures de δ[sup.13]C de base. Les fluctuations annuelles des conditions de base tant pelagiques que littorales n'etaient pas negligeables (ΔC = 10 ‰ et 8 ‰, respectivement). Nous avons determine que ne pas tenir compte de ces fluctuations entramerait une forte sous-estimation des contributions des signatures pelagiques et littorales (jusqu'a 30%dup et 13 % du q pour les coregones (Coregonus lavaretus) et les gardons (Rutilus rutilus), respectivement). Dans les cas ou les poissons dependaient de consommateurs pelagiques, l'enrichissement sequentiel en [sup.15]N(E) des proies pelagiques diminuait de maniere lineaire parallelement a la pression de predation pour la taille de proies concernee. Les longs reseaux trophiques seraient donc proportionnellement moins enrichis sequentiellement en [sup.15]N que les reseaux plus courts. [Traduit par la Redaction], Introduction The strong reliance between autochthonous and allochthonous carbon (C) sources is well documented in shallow lakes (e.g., Pulido-Villena et al. 2005; Bertolo et al. 2005; Ask et al. 2009; [...]

Published
2014
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30. Living organisms and sedimentary remains from high mountain lakes in the Alps

Author

Marchetto, Aldo, primary, Boggero, Angela, additional, Fontaneto, Diego, additional, Lami, Andrea, additional, Lotter, André F., additional, Manca, Marina M., additional, Massaferro, Julieta, additional, Mosello, Rosario, additional, Musazzi, Simona, additional, Nickus, Ulrike, additional, Psenner, Roland, additional, Rogora, Michela, additional, Sorvari Stundet, Sanna, additional, Stuchlik, Evzen, additional, Tartari, Gabriele A,, additional, Thies, Hansjörg, additional, and Tolotti, Monica, additional

Published
2021
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32. 21 High altitude lakes: limnology and paleolimnology

Author

Andrea, Lami, Tartari, Gabriele A., Musazzi, Simona, Guilizzoni, Piero, Marchetto, Aldo, Manca, Marina, Boggero, Angela, Nocentini, Anna M., Morabito, Giuseppe, Tartari, Gianni, Guzzella, Licia, Bertoni, Roberto, and Callieri, Cristiana

Published
2007
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36. Evidence for short-lived oscillations in the biological records from the sediments of Lago Albano (Central Italy) spanning the period ca. 28 to 17 k yr BP

Author

Guilizzoni, Piero, Marchetto, Aldo, Lami, Andrea, Oldfield, Frank, Manca, Marina, Belis, Claudio A., Nocentini, Anna M., Comoli, Patrizia, Jones, Vivienne J., Juggins, Steve, Chondrogianni, Christina, Ariztegui, Daniel, Lowe, John J., Ryves, David. B., Battarbee, Richard W., Rolph, Tim C., and Massaferro, Julieta

Published
2000
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49. Fisheries impacts on lake ecosystem structure in the context of a changing climate and trophic state

Author

Noges, Tiina, Anneville, Orlane, Guillard, Jean, Haberman, Juta, Jarvalt, Ain, Manca, Marina, Morabito, Giuseppe, Rogora, Michela, Thackeray, Stephen J., Volta, Pietro, Winfield, Ian J., Noges, Peeter, Noges, Tiina, Anneville, Orlane, Guillard, Jean, Haberman, Juta, Jarvalt, Ain, Manca, Marina, Morabito, Giuseppe, Rogora, Michela, Thackeray, Stephen J., Volta, Pietro, Winfield, Ian J., and Noges, Peeter

Abstract

Through cascading effects within lake food webs, commercial and recreational fisheries may indirectly affect the abundances of organisms at lower trophic levels, such as phytoplankton, even if they are not directly consumed. So far, interactive effects of fisheries, changing trophic state and climate upon lake ecosystems have been largely overlooked. Here we analyse case studies from five European lake basins of differing trophic states (Lake Võrtsjärv, two basins of Windermere, Lake Geneva and Lake Maggiore) with long-term limnological and fisheries data. Decreasing phosphorus concentrations (re-oligotrophication) and increasing water temperatures have been reported in all five lake basins, while phytoplankton concentration has decreased only slightly or even increased in some cases. To examine possible ecosystem-scale effects of fisheries, we analysed correlations between fish and fisheries data, and other food web components and environmental factors. Re-oligotrophication over different ranges of the trophic scale induced different fish responsesIn the deeper lakes Geneva and Maggiore, we found a stronger link between phytoplankton and planktivorous fish and thus a more important cascading top-down effect than in other lakes. This connection makes careful ecosystem-based fisheries management extremely important for maintaining high water quality in such systems. We also demonstrated that increasing water temperature might favour piscivores at low phosphorus loading, but suppresses them at high phosphorus loading and might thus either enhance or diminish the cascading top-down control over phytoplankton with strong implications for water quality.

Published
2018

50. At the edge and on the top: molecular identification and ecology of Daphnia dentifera and D. longispina in high-altitude Asian lakes

Author

Möst, Markus, Petrusek, Adam, Sommaruga, Ruben, Juračka, Petr, Slusarczyk, Miroslav, Manca, Marina, Spaak, Piet, Möst, Markus, Petrusek, Adam, Sommaruga, Ruben, Juračka, Petr, Slusarczyk, Miroslav, Manca, Marina, and Spaak, Piet

Abstract

The occurrence of members of the highly diverse Daphnia longispina complex in Southern and Central Asian high-mountain lakes has been recognized for more than a century. Until now, however, no molecular data have been available for these populations inhabiting the "Roof of the World.” Here, we present the first identification for D. gr. longispina from that region based on a molecular phylogeny. Our findings show that alpine lakes in the Pamir and Himalaya mountains host populations of widespread species of the complex, for which these are the highest known localities. A spineless morph from the Himalaya region, previously labeled as D. longispina var. aspina, was clustering tightly with D. dentifera, while a population from the Pamir mountain range was grouped with D. longispina. In addition, we analyzed ecological data available for lakes in the Khumbu region (Himalaya) to investigate ecological preferences of non-pigmented D. gr. longispina. The identified factors can at least partly be related to avoidance of high UV conditions by this species. We conclude that the widespread species D. dentifera and D. longispina also colonized the Asian high-mountain lakes, and identify the need for further research to trace the possible effect of rapid environmental changes in this region on the diversity and ecology of high-altitude Daphnia populations

Published
2018

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