Elevation-induced variations of pollen assemblages in the North-western Alps: An analysis of their value as temperature indicators.

Seventy-seven modern pollen samples from various elevations (350-2680 m a.s.l.

[Role of man in the history of vegetation of the Ellero valley (maritime Alps, Italy)].

The pollen analysis of a sediment core from a peat bog (Rifugio Mondovi) at the mountain belt (1760 m) in the Ellero Valley (Italian Maritime Alps) shows the postglacial vegetation history. The sequence starts at 12,000 BP during a peak of pine pollen; this first phase shows a low representation of birch and the presence of Tilia. Younger Dryas is characterised by increasing percentages of Artemisia, showing the presence of deciduous Quercus, fir and beech.