Title: Pollen source area and representation in small lakes of the northeastern United States
Abstract: Modern pollen assemblages from 19 small ponds (0.1 to 0.5 hectares) in northern New York and southern New England were compared with forest composition within 20, 100, 500 and 1000 m of the pond shores. Pollen source areas differed substantially among taxa according to pollen dispersal properties. Large, poorly dispersed pollen types (Picea, Tsuga) derived mainly from trees growing < 500 m from the pond shores. Large numbers of smaller, well-dispersed types (Quercus, Pinus, Betula) came from sources > 1000 m away. Most Fagus pollen, intermediate in size, came from within 1000 m of the ponds. Pollen source areas and representation were also influenced by spatial distributions of tree populations around individual sites. Local populations of several tree taxa (Fagus, Pinus, Betula, Larix, Thuja, Nyssa) contributed significant amounts of pollen to ponds, necessarily affecting relative pollen representation of more-distant populations of other taxa. However, in spite of this local influence, most pollen collected by the lakes originated from trees > 100 m away, indicating that trunk-space transport and direct deposition from overhanging trees were minor components of pollen transfer compared to atmospheric transport from above the canopy.
Publication Year: 1990
Publication Date: 1990-05-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 210
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