Human Disturbance and the Historical Development of Linsley Pond
Author:
- Richard B. BrugamRBRichard B. Brugam
Abstract
Paleolimnological techniques were used at Linsley Pond, North Branford, Connecticut, USA to compare changes in the biota with changes in watershed land use as documented by municipal land records. Fossil diatoms, midges, zooplankton, and chemical composition were examined in a core 238 cm long, which was dated by (210)Pb, (14)C, and changes in fossil pollen assemblages. The beginning of farming in 1700 caused only minor changes in the lake biota. In 1915 changes in agricultural activity at a nearby farm caused a rapid shift to eutrophic diatom and midge assemblages. In 1960 major changes occurred in the zooplankton community in response to the hypereutrophication caused by the construction of a suburban housing development. Fluxes of Fe, Mn, Ca, Cu, and P to the lake sediment seem to be controlled by changes in soil erosion–not by changes in the trophic status of the lake.Keywords
This publication has 10 references indexed in Scilit:
- Allelopathic Influence on Blue-Green Bloom Sequence in a Eutrophic LakeScience, 1977
- Vertical migration in zooplankton as a predator avoidance mechanism1Limnology and Oceanography, 1976
- Concentration of diatom frustules in Lake Michigan sediment cores1Limnology and Oceanography, 1976
- The Chestnut Pollen Decline as a Time Horizon in Lake Sediments in Eastern North AmericaCanadian Journal of Earth Sciences, 1974
- THE SUCCESSION OF DIATOM ASSEMBLAGES IN THE RECENT SEDIMENTS OF LAKE WASHINGTON1Limnology and Oceanography, 1967
- Determination of Absolute Pollen FrequencyEcology, 1966
- Predation, Body Size, and Composition of PlanktonScience, 1965
- A Lightweight Piston Sampler for Lake DepositsEcology, 1955
- Limnological Studies in Connecticut. VII. A Critical Examination of the Supposed Relationship between Phytoplakton Periodicity and Chemical Changes in Lake WatersEcology, 1944
- Limnological studies in Connecticut; Part V, A contribution to regional limnologyAmerican Journal of Science, 1940