Reconstruction of pH by chrysophycean scales in some lakes of the Southern Alps

Mediterranean limnology: current status, gaps and the future

“…The availability of limnosystem models, either heuristic or predictive, conceptual or numeric, which is still lower than the vast array of items from cold temperate areas (e.g. Reynolds et al 2001;Sommer et al 1986;Straskraba & Tundisi 1999 Guilizzoni & Oldfield (1996), Hutchinson (1970), Lami et al (2000), Marchetto & Lami (1994), Margalef (1957), Ruggiu et al (1998b) Schmidt et al (2000, Valero-Garcés (2003) Environmental problems including water pollution and eutrophication Alvarez-Cobelas et al (1992b), De Bernardi et al (1996, Gaggino & Provini (1988), Gophen (2000), Lake (2003), Wynne & Parparova (2002) Techniques for biological monitoring Alba-Tercedor & Pujante (2000), Buffagni et al (2001), Davies (2000) Human culture and Mediterranean limnosystems Alvarez-Cobelas & Cirujano (1996), Bayly (1999), Blasco Ibáñez (1901, Haslam (1991), Haslam & Borg (1998) Talling 1993;Bäuerle & Gaedke 1998). Those studies will not only help to understand climate change but also illuminate shorter-term processes arising from seasonal and interannual environmental variability (Neale et al 1991).…”

Paleolirnnological records of carotenoids and carbonaceous particles in sediments of some lakes in Southern Alps

“…in Lake Paione superiore). Atmospheric pollution did not affect the lake pH of the well-buffered lakes Tovel and Tom, whereas a significant lowering of pH in recent years was identified in lakes Leit and Paione superiore (Marchetto & Lami, 1994).…”

“…On the other hand, lakes Paione superiore and Leit are poorly buffered (range of alkalinity of 5-22 eq 1-1). Some selected geographical, physical and chemical characteristics of the study lakes are reported in Marchetto & Lami (1994) and in Guilizzoni et al (1992b).…”

“…In some of these lakes the pH during the past has been inferred by analyzing assemblages of chrysophytes (Marchetto & Lami, 1994) and by a pigment index (Guilizzoni et al, 1992a).…”

Testing a new multigroup inference approach to reconstructing past environmental conditions

“…But on the other hand we recognise that it is important to refrain from data-dredging, and over-exploiting post-hoc correlations and so we need to guard against any proliferation of associations. pH and alkalinity are chosen as two environmental variables which previously have been found to be good correlates (e.g., Cameron et al 1999;Marchetto & Lami 1994;Marchetto & Schmidt 1992). CO 2 is chosen as a chemically important variable which previously has not yielded good associations.…”