Study

Conservation reserve program: source or sink habitat for grassland birds in Missouri?

  • Published source details McCoy T.D., Ryan M.R., Kurzejeski E.W. & Burger L.W. (1999) Conservation reserve program: source or sink habitat for grassland birds in Missouri?. The Journal of Wildlife Management, 63, 530-538.

Actions

This study is summarised as evidence for the following.

Action Category

Restore or create grasslands

Action Link
Bird Conservation
  1. Restore or create grasslands

    A replicated study from 1993-1995 in a mixed prairie-cropland landscape in Missouri, USA (McCoy et al. 1999), found that some bird species appeared to be able to maintain stable populations on 16 restored grassland fields (eight sown with cool-season and eight with warm-season grasses), while others might not. Productivity exceeded levels necessary for population growth for four grassland species (average of 4.fledglings/nest and 3 female nestlings/nest), but not for two others (average of 3.fledglings/nest and 1 female nestlings/nest). Results were uncertain for one species (average of 4 fledglings/nest and 1 female nestlings/nest). Although large numbers of dickcissels and red-winged blackbirds nested in restored fields, there was little evidence that grass restoration contributed to their population expansion.

     

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