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The Center for Native Grasslands Management

Title: Relative invertebrate abundance and biomass in Conservation Reserve Program plantings in northern Missouri
Year: 1993
Author(s): Burger, Jr., L.W., Kurzejeski, E.W., Dailey, T.V., Ryan, M.R.
Source Title: Third National Quail Symposium
Source Type: Proceedings
pages: 102-108
Original Publication: http://  
Abstract: We measured relative invertebrate abundance, biomass and diverstiy in Conservation Reserve Program (CRP) fields planted to red clover/timothy, timothy, orchardgrass, tall fescue, warm season grasses (big bluestem/switchgrass), orchardgrass/Korean lespedeza, and conventionally-tilled soybeans, to assess brood habitat quality for northern bobwhite. We sampled invertebrate populations by vacuuming along 3 15-m transects (4.56 m2 sample) within four fields of each planting type, at 2-wk intervals from 1 July to 15 August 1990 and 1991. Invertebrate abundance and biomass were lowest in early August (P < 0.05). The CRP fields planted to a red clover/timothy mixture, and dominated by red clover, had the highest levels of invertebrate abundance and biomass (P < 0.05). Conventionally-tilled soybeans had lower invertebrate abundance and biomass than all CRP covertypes (P < 0.05). Mean invertebrate abundance and biomass in CRP fields were 4 times that of soybean fields. In northern Missouri, CRP fields could provide quality brood habitat if structural charcteristics are also consistant with brood foraging needs. Incorporation of a legume in CRP plantings may produce higher invertebrate densities and improve the value of these fields as brood habitat.
Publisher: Kansas Department of Wildlife and Parks, Pratt, KS
Editor(s): K. E. Church