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Bird surveys at McKinley Bay and Hutchinson Bay, Northwest Territories, in 1990

Technical Report:

Abstract

Monitoring surveys of bird abundance and distribution were conducted in 1990 at McKinley Bay in the Northwest Territories, the site of a winter harbour for drillships and the proposed location for a major year-round support base for oil and gas exploration. Primary objectives of the survey were to determine whether diving duck numbers had changed since the initial phase of the study from 1981-1985, and to provide additional baseline data on natural annual fluctuations in diving duck numbers. Three aerial surveys at each bay were carried out using techniques identical to those in previous years. On 5 August 1990, when survey conditions were considered best of the three surveys, more than twice as many diving ducks were found in McKinley Bay and Hutchinson Bay than on average during the five years of 1981-1985. Old squaw and scooters comprised ca 90% of the diving ducks observed, and both species showed significant increases in numbers. The increase in abundance of diving ducks was likely unrelated to industrial activity in the area since a similar increase occurred in the control area, Hutchinson Bay. Many factors, including both environmental factors such as those affecting nesting success and timing of the moult, and factors related  More>>
Publication Date:
Mar 01, 1991
Product Type:
Technical Report
Report Number:
CWS-92-00435; MICROLOG-92-00435
Reference Number:
CANM-92-002741; EDB-92-081805
Resource Relation:
Related Information: Technical report series, No. 126
Subject:
54 ENVIRONMENTAL SCIENCES; 02 PETROLEUM; DUCKS; POPULATION DYNAMICS; SURVEYS; NORTHWEST TERRITORIES; ENVIRONMENTAL IMPACTS; EXPLORATION; PETROLEUM; ANIMALS; BIRDS; CANADA; DEVELOPED COUNTRIES; ENERGY SOURCES; FOSSIL FUELS; FOWL; FUELS; NORTH AMERICA; VERTEBRATES; 540210* - Environment, Terrestrial- Basic Studies- (1990-); 020900 - Petroleum- Environmental Aspects
OSTI ID:
5456989
Research Organizations:
Canadian Wildlife Service, Edmonton, AB (Canada)
Country of Origin:
Canada
Language:
English
Availability:
PC Environment Canada Departmental Library, Att: Eric Wees, Acquisitions, 351 St. Joseph Blvd., 2nd Fl., Ottawa, ON, CAN K1A 0H3; MF CANMET/TID, Energy, Mines and Resources Canada, 555 Booth St., Ottawa, Ont., Canada K1A 0G1.
Submitting Site:
CANM
Size:
Pages: (68 p)
Announcement Date:

Technical Report:

Citation Formats

Cornish, B J, Dickson, D L, and Dickson, H L. Bird surveys at McKinley Bay and Hutchinson Bay, Northwest Territories, in 1990. Canada: N. p., 1991. Web.
Cornish, B J, Dickson, D L, & Dickson, H L. Bird surveys at McKinley Bay and Hutchinson Bay, Northwest Territories, in 1990. Canada.
Cornish, B J, Dickson, D L, and Dickson, H L. 1991. "Bird surveys at McKinley Bay and Hutchinson Bay, Northwest Territories, in 1990." Canada.
@misc{etde_5456989,
title = {Bird surveys at McKinley Bay and Hutchinson Bay, Northwest Territories, in 1990}
author = {Cornish, B J, Dickson, D L, and Dickson, H L}
abstractNote = {Monitoring surveys of bird abundance and distribution were conducted in 1990 at McKinley Bay in the Northwest Territories, the site of a winter harbour for drillships and the proposed location for a major year-round support base for oil and gas exploration. Primary objectives of the survey were to determine whether diving duck numbers had changed since the initial phase of the study from 1981-1985, and to provide additional baseline data on natural annual fluctuations in diving duck numbers. Three aerial surveys at each bay were carried out using techniques identical to those in previous years. On 5 August 1990, when survey conditions were considered best of the three surveys, more than twice as many diving ducks were found in McKinley Bay and Hutchinson Bay than on average during the five years of 1981-1985. Old squaw and scooters comprised ca 90% of the diving ducks observed, and both species showed significant increases in numbers. The increase in abundance of diving ducks was likely unrelated to industrial activity in the area since a similar increase occurred in the control area, Hutchinson Bay. Many factors, including both environmental factors such as those affecting nesting success and timing of the moult, and factors related to the survey methods, could be involved in causing the large fluctuations observed. 9 refs., 8 figs., 10 tabs.}
place = {Canada}
year = {1991}
month = {Mar}
}