Monitoring Bird Populations on Biophysical Inventory Plots: St. Louis County, 1994-1996
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Monitoring Bird Populations on Biophysical Inventory Plots: St. Louis County, 1994-1996
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1997
Publisher
University of Minnesota Duluth
Type
Technical Report
Abstract
Neotropical migrant birds have recently received much attention following
reported declines in many species that breed in eastern North America.
Probable causes for such declines include events such as habitat alteration,
occurring on both breeding and wintering grounds. Changes in forest species
composition and age structure, and the spatial arrangement of these forest
components may influence bird communities in both regions. The
consequences of these changes to birds and other wildlife in Minnesota are not
well understood.
Minnesota's forests harbor a greater diversity of songbirds than anywhere else in
North America. Birds represent more than 70% of the more than 150 terrestrial
vertebrate species in northern Minnesota forests. Development of forest
management plans designed to sustain the diversity of these forests should
address bird communities occupying them.
To better understand the affect of forest management activities on bird
communities in St. Louis County, a site-specific bird monitoring program was
initiated on biophysical plots. Bird census points were established on
biophysical plots and surveyed for forest birds during June of 1994, 1995, and
1996. Results of these surveys were used to determine avian community
composition within plots, refine species/habitat relationships for St. Louis County,
and establish baselines for continued monitoring of bird populations on selected
plots.
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Montgomery, Kent; Niemi, Gerald J. (1997). Monitoring Bird Populations on Biophysical Inventory Plots: St. Louis County, 1994-1996. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/187254.
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