Title

Interannual Variability In Pollen Dispersal and Deposition On the Tropical Quelccaya Ice Cap

Document Type

Article

Publication Date

5-1-2005

Department

Geography and Geology

Abstract

Pollen collected from snow samples on the Quelccaya Ice Cap in 2000 and 2001 reveals significant interannual variability in pollen assemblage, concentration, and provenance. Samples from 2000, a La Nina year, contain high pollen concentrations and resemble samples from the Andean forests (Yungas) to the east. Samples from 2001, an El Nino year, contain fewer pollen and resemble those from the Altiplano. We suggest that varying wind patterns under different El Nino/Southern Oscillation (ENSO) conditions may affect the processes of pollen transport over the Altiplano and on the ice cap, although confounding variables such as flowering phenology and sublimation should also be considered.

Publication Title

Professional Geographer

Volume

57

Issue

2

First Page

185

Last Page

197