University of Illinois Urbana-Champaign

ELF Communications System Ecological Monitoring Program: Field Studies of Effects of ELF on Migrating Birds: Annual Report 1983

Larkin, Ronald P.

Permalink

https://hdl.handle.net/2142/117343

Description

Title
ELF Communications System Ecological Monitoring Program: Field Studies of Effects of ELF on Migrating Birds: Annual Report 1983
Author(s)
Larkin, Ronald P.
Issue Date
1983
Keyword(s)
  • bird migration
  • Extra low frequency antenna system
  • radar techniques
Abstract
Progress on the project to study the effects of the ELF antenna system on migrating birds is reported for the 1983 period. The selected radar site, constrained by topography and power requirements, provides an excellent vantage for comparisons of avian migration before-and-after ELF installation and close to vs distant from the antenna. Data collected during 13 nights in fall, 1983 Include 751 individual tracks (mostly birds), 38 counts of target density, and 26 records of wingbeat signatures. Possible reactions of birds to a nearby broadcasting tower were also noted. Few waterfowl were recorded during the census perlod (24 - 30 October). Radio tracking results were limited by low capture rates of birds in Wisconsin. Software utilities have been developed or modified specifically for the collection, handling, and analysis of data from the Upper Peninsula.
Type of Resource
text
Language
en
Sponsor(s)/Grant Number(s)
Department of the Navy Naval Electronic Systems Command, Prime Contract Number N00039-81-C-0357 , IIT Research Institute Subcontract Number E06516-82-C-50015

Owning Collections

Technical Reports - Illinois Natural History Survey PRIMARY
Reports produced by INHS staff, usually as deliverables for assessment projects funded by federal or state agencies or non-governmental organizations.