[DOWNLOAD] "Avian Response to Mid-Contract Management of Conservation Reserve Program Fields (Survey)" by The American Midland Naturalist # Book PDF Kindle ePub Free

January 15, 2021

eBook details

Title: Avian Response to Mid-Contract Management of Conservation Reserve Program Fields (Survey)
Author : The American Midland Naturalist
Release Date : January 01, 2010
Genre: Life Sciences,Books,Science & Nature,
Pages : * pages
Size : 244 KB

Description

INTRODUCTION Throughout the Midwestern U.S., surveys of grassland bird populations over the last 40 y indicate they have declined more rapidly than any other guild of birds, with declines ranging from 24 to 91% in Illinois, Minnesota, Wyoming, Nebraska and Missouri (Samson and Knopf, 1994; Sauer et al., 2008). These declines have been attributed mainly to the loss of prairie habitat. Samson and Knopf (1994) estimated that as little as 1% of native prairie habitat remains in the Midwestern U.S. Unfortunately, the prairie that remains often exists in small fragments that are usually improperly managed. Additionally, modern agricultural practices that favor reduced crop diversity and increased field sizes have also contributed to grassland bird declines (Best et al., 1998).