Long term changes in ice and discharge regime of rivers in the Baltic region in relation to climatic variability

Kļaviņš, Māris; Briede, Agrita; Rodinov, Valery

doi:10.1007/s10584-009-9567-5

Cited by 58 publications

(51 citation statements)

References 34 publications

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“…S3), the latter likely subsidizing the semienclosed GoR ecosystem with nutrients (27). River runoff in GoR is eventually driven by large-scale climatic processes acting on precipitation and ice dynamics (28). The impact of top-down forcing on the summer phytoplankton biomass was also indirectly evidenced by the Secchi depth, an indicator of water transparency, which covaried positively with the copepods (Fig.…”

Section: Resultsmentioning

confidence: 97%

Predator transitory spillover induces trophic cascades in ecological sinks

Casini

Blenckner²,

Möllmann³

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

103

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Understanding the effects of cross-system fluxes is fundamental in ecosystem ecology and biological conservation. Source-sink dynamics and spillover processes may link adjacent ecosystems by movement of organisms across system boundaries. However, effects of temporal variability in these cross-system fluxes on a whole marine ecosystem structure have not yet been presented. Here we show, using 35 y of multitrophic data series from the Baltic Sea, that transitory spillover of the top-predator cod from its main distribution area produces cascading effects in the whole food web of an adjacent and semi-isolated ecosystem. At varying population size, cod expand/contract their distribution range and invade/retreat from the neighboring Gulf of Riga, thereby affecting the local prey population of herring and, indirectly, zooplankton and phytoplankton via top-down control. The Gulf of Riga can be considered for cod a "true sink" habitat, where in the absence of immigration from the source areas of the central Baltic Sea the cod population goes extinct due to the absence of suitable spawning grounds. Our results add a metaecosystem perspective to the ongoing intense scientific debate on the key role of top predators in structuring natural systems. The integration of regional and local processes is central to predict species and ecosystem responses to future climate changes and ongoing anthropogenic disturbances.ecosystem regulation | predator distribution | landscape ecology | exploited resources | cross-system management

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Section: Resultsmentioning

confidence: 97%

Predator transitory spillover induces trophic cascades in ecological sinks

Casini

Blenckner²,

Möllmann³

et al. 2012

Proc. Natl. Acad. Sci. U.S.A.

103

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“…Similar studies on the Baltic Sea were carried out more recently (e.g. Eckersten et al 2001;Pettersson, 2003;Arrheimer et al, 2005, Blenckner et al 2007; Lewan and Wallin, 2007;Ulén and Weyhenmeyer, 2007;Zillén, 2008;Klavins et al 2009;Möllman et al, 2009). In spite of this relatively early concern, the environmental economics literature on climatic change and water quality management is scarce and is mostly applied to water supply management and/or estimation of impacts on agricultural and other water dependent industries (Mendelsohn, 2003;Lacroix, 2005).…”

Section: Introductionmentioning

confidence: 78%

“…There are today a considerable number of studies on climate change effects related to the Baltic Sea (e.g. Eckersten et al 2001;Pettersson, 2003;Arrheimer et al, 2005, Blenckner et al 2007Lewan and Wallin, 2007;Ulén and Weyhenmeyer, 2007;Zillén, 2008;Klavins et al 2009;Möllman et al, 2009). A common focus of these studies has been to estimate the changes in winter North Atlantic Oscialltions on climate and associated impacts on water temperature, ice conditions, plankton phonology, and nutrient discharges on lakes and water sheds in the Baltic Sea drainage basin and in other parts of Europe.…”

Section: Climate Change Effectsmentioning

confidence: 99%

Climate Change and Resilience Value of Mussel Farming for the Baltic Sea

Gren¹

2010

Climate Change and Variability

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“…GWL are defined in detail by Hess and Brezowski (1952)and Kyselý and Huth (2006) may have caused additional coastal erosion along the eastern margin of the Baltic Sea (see Chap. 20), as well as changes in other parameters in the region (Klavinš et al 2007(Klavinš et al , 2009Valdmann et al 2008;Draveniece 2009;Rivza and Brunina 2009;Avotniece et al 2010;Klavinš and Rodinov 2010;Lizuma et al 2010). …”

Section: Circulation Changes In Recent Decadesmentioning

confidence: 99%

Recent Change—Atmosphere

Rutgersson

Jaagus

Schenk

et al. 2015

Regional Climate Studies

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This chapter describes observed changes in atmospheric conditions in the Baltic Sea drainage basin over the past 200-300 years. The Baltic Sea area is relatively unique with a dense observational network covering an extended time period. Data analysis covers an early period with sparse and relatively uncertain measurements, a period with well-developed synoptic stations, and a final period with 30+ years of satellite data and sounding systems. The atmospheric circulation in the European/Atlantic sector has an important role in the regional climate of the Baltic Sea basin, especially the North Atlantic Oscillation. Warming has been observed, particularly in spring, and has been stronger in the northern regions. There has been a northward shift in storm tracks, as well as increased cyclonic activity in recent decades and an increased persistence of weather types. There are no long-term trends in annual wind statistics since the nineteenth century, but much variation at the (multi-)decadal timescale. There are also no long-term trends in precipitation, but an indication of longer precipitation periods and possibly an increased risk of extreme precipitation events.

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Long term changes in ice and discharge regime of rivers in the Baltic region in relation to climatic variability

Cited by 58 publications

References 34 publications

Predator transitory spillover induces trophic cascades in ecological sinks

Predator transitory spillover induces trophic cascades in ecological sinks

Climate Change and Resilience Value of Mussel Farming for the Baltic Sea

Recent Change—Atmosphere

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