and lichenometric dating. Specific objectives are: (1) to estimate the extent of variability in the mean annual radial growth rate both around the thallus perimeter and through time; (2) to compare the growth rate with those of smaller lichens; and (3) to evaluate
the implications of the results for lichen longevity, lichen growth-rate models and lichenometric dating curves.
Re-dating the moraines at Skálafellsjökull and Heinabergsjökull using different lichenometric methods : implications for the timing of the Icelandic Little Ice Age maximum
Different field methods, which may result in lichen growth curves and lichenometric dating curves, respectively, are outlined and discussed. Emphasis is laid on various factors that need to be taken into consideration in order to avoid errors
A review of lichenometric dating of glacial moraines in Alaska
the potential to test some of the assumptions of the lichenometric technique and to facilitate the development of a new set of improved lichen dating curves for Alaska.
Lichenometric studies on moraines in the Polar Urals
, on glacier forelands, were dated using topographic maps, aerial photographs (from 1953 to 1989), terrestrial photogrammetry, field photographs (from the 1960s to 2005), and satellite images (from 2000 and 2008). Results and discussion about the lichenometric
Problems and possibilities of lichenometric dating in Polish mountains
In the new lichenometric curve which was constructed for the Polish section of the Tatra and Karkonosze Mountains, the thallus growth curve for the first 100 years was defined in a linear manner in relation to altitude. Therefore the curve can
Lichenometric dating of Little Ice Age glacier moraines using explicit demographic models of lichen colonization, growth, and survival
To date 3 terminal moraines of an Alaskan glacier, the AA. used a new lichenometric technique in which surfaces are dated by comparing lichen population distributions with the predictions of ecological demography models with explicit rules
Lichenometric ages of the Little Ice Age moraines on King George Island and of the last volcanic activity on Penguin Island (West Antarctica)
The goal of the study was to estimate ages of lichen colonization on the oldest moraines of the Ecology and White Eagle Glaciers on King George Island and on the Principal Cone of Penguin Island volcano. The first lichenometric studies
Detailed geomorphological mapping, supplemented by lichenometric datings and lacustrine sediment studies, shows that debris flow activity on the high-mountain Tatra slopes/South Poland/increased in both frequency and occurrence as well as magnitude
A lichenometric survey in the Baksan River Basin found that the cessation of mudflow activity in the fourteenth and fifteenth centuries coincided with a prolonged cold period. Mudflow activity has increased in the present century possibly due
development rates for this part of Norway are used to calculate moraine ages and to construct an absolute chronology for the moraine sequence, which is compared to a previously published lichenometric chronology for the same cirque basin.
Lichenometric studies from four glaciers in Northern Iceland are used to determine the dates of their Little Ice Age maxima. In all cases these date to the last half of the nineteenth century and probably marked the maximum Neoglacial extent
: spatial and temporal variability in lichen growth rates; climatic effects on lichen growth rates; lichen growth models; and implications for lichenometric dating. Comparison with growth rates inferred from indirect lichenometry suggest that high measured
growth rates could not have been maintained over the last few centuries by the largest lichens used in southern Norway for lichenometric dating. Several hypotheses, such as the effects of competition and climate change which might explain this paradox