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CERTAIN ECOLOGICAL ASPECTS OF POLLEN DISPERSION IN LAKE TAHOE (CALIFORNIA‐NEVADA) 1
Author(s) -
RICHERSON PETER J.,
MOSHIRI GERALD A.,
GODSHALK GORDON L.
Publication year - 1970
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1970.15.1.0149
Subject(s) - pollen , nutrient , environmental science , phosphorus , montane ecology , productivity , hydrology (agriculture) , ecology , biology , geology , chemistry , geotechnical engineering , organic chemistry , economics , macroeconomics
The pollen dispersion and its dissemination pattern in Lake Tahoe was investigated to determine its role in the nutrient budget of the lake. Pollen was sampled during summer 1968 from tubs placed around the lake and from lake water down to 150 m. Pinus pollen reached its peak of abundance later in the season than Abies. The nitrogen and phosphorus of the pollen deposited during one season is negligible in the total annual nutrient budget of the lake. Total dry weight contributed by pollen also constitutes an insignificant percentage of the annual 14 C primary productivity of the lake. In small, subalpine or alpine lakes with more limited nutrient inflow, pollen may contribute more significantly to the annual nitrogen and phosphorus budgets.