Go to  Advanced Search

Please note that cIRcle is currently being upgraded to DSpace v5.1. The upgrade means that the cIRcle service will *not* be accepting new submissions from 5:00 PM on September 1, 2015 until 5:00 PM on September 4, 2015. All cIRcle material will still be accessible during this period. Apologies for any inconvenience.

Waterfowl farmland use in Delta, British Columbia : a remote sensing / GIS analysis

Show full item record

Files in this item

Files Size Format Description   View
ubc_1996-0025.pdf 3.937Mb Adobe Portable Document Format   View/Open
Title: Waterfowl farmland use in Delta, British Columbia : a remote sensing / GIS analysis
Author: Mayoral, Celia Sánchez.
Degree Master of Science - MSc
Program Forestry
Copyright Date: 1995
Abstract: Farmfields located in the vicinity of wetlands are often visited by wintering waterfowl. The selection of individual fields could be affected by a number of factors, including the crop cover type and the accumulation of surface water on the field, as well as by other factors related to the location of the field. This research investigated the possible relation between locational factors (size and shape of the field, distance to the coast, presence of trees, roads and buildings in the surroundings) and the observed presence/absence of ducks (mallard, Anas platyrynchos, pintail, Anas acuta, wigeon, Anas americana) in a group of fields in the Fraser River delta. Maps of the fields were obtained by interpretation of aerial photographs. Bird data came from previous surveys. Maps and associated attribute data were integrated in a Geographic Information System that also provided analysis tools. Regression analysis was undertaken in order to relate the presence of ducks in the fields with the geographic (locational) factors. Day and night situations were considered, and fields were grouped into two cover type classes for the analysis. Results of the analysis indicated that the consideration of just locational variables could not predict the presence of ducks in fields, although some factors, particularly the distance to the coast and the vegetation in the perimeter were found to be correlated with duck presence.
URI: http://hdl.handle.net/2429/4120
Series/Report no. UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/]
Scholarly Level: Graduate

This item appears in the following Collection(s)

Show full item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893