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Factors Affecting Distribution of Gulls (Larus spp.) on Two New Jersey Coastal Bays

Published online by Cambridge University Press:  24 August 2009

Joanna Burger
Affiliation:
Professor, Bureau of Biological Research and Department of Biological Sciences, Rutgers University, Piscataway, New Jersey 08854, USA
Joan Galli
Affiliation:
Department of Natural Resources, State of Minnesota, 500 Lafayette Road, St Paul, Minnesota 55146, USA.

Extract

The distribution and abundance of gulls were examined on Raritan and Delaware Bays from 20 April to 26 October 1982. Gull numbers were affected by seasonal, tidal, weather-related, and human disturbance, factors on both Bays. Gulls comprised from about 40 to 60% of the avifauna on the census areas, and shorebirds accounted for most of the other individuals. Peak numbers of gulls were present on Delaware Bay from May through July, and on Raritan Bay in September. Laughing Gulls (Larus atricilla) were the dominant species on both Raritan (90%) and Delaware (70%) Bays, with Herring Gulls (L. argentatus) second in abundance.

Type
Main Papers
Copyright
Copyright © Foundation for Environmental Conservation 1987

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