Apply ecological compensation for developments
Overall effectiveness category Awaiting assessment
Number of studies: 1
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Background information and definitions
Development projects destroy or disturb natural habitats, displacing animals living there. Ecological compensation for developments aims to create new habitat, or improve the condition of existing habitat, outside of the development area, to replace that which is lost (Kleintjes et al. 2003). This intervention tests whether these compensation areas are effective for butterflies and moths.
Kleintjes P.K., Sporrong J.M., Raebel C.A. & Thon S.F. (2003) Habitat type conservation and restoration for the Karner blue butterfly: a case study from Wisconsin. Ecological Restoration, 21, 107–115.
Supporting evidence from individual studies
A site comparison study in 1997–2001 in a shrubland in Wisconsin, USA (Kleintjes et al. 2003) reported that an area containing lupine Lupinus perennis transplanted from a development site was used by a similar number of Karner blue butterflies Lycaeides melissa samuelis as an area with no transplanted lupines. Results were not tested for statistical significance. One–four years after restoration, 4–8 Karner blue butterflies/year were recorded in an area with transplanted lupines, compared to 1–8 butterflies/year in an area without transplanted lupines. In June 1997, seventy-five plugs of lupine (0.76-m diameter, 1.2-m-deep) were removed from a construction area and planted in a 5 × 15 grid covering a 324-m2 area cleared of young pine trees. In November 1997, the surrounding 641 m2 was hand-seeded with a dry sand prairie seed mix (40% grasses, 50% non-woody broadleaved plants (forbs), 10% scarified lupine seed) at 22.6 lbs/ha. An adjacent 0.8-ha area, where the topsoil had been temporarily removed, was seeded with the same mix. In October 1999–2001, two 0.2-ha patches in each of the transplanted and seeded areas were cut to a height of 16 cm each year. From 1998–2001, Karner blue butterflies were surveyed 5–6 times/year (covering both flight periods) on a 103-m transect through the transplanted and seeded area, and a 570-m transect through the seeded non-transplanted area. The highest number of butterflies counted on a single date in each flight period at each site was used as the abundance for that year.Study and other actions tested
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This Action forms part of the Action Synopsis:Butterfly and Moth Conservation
Butterfly and Moth Conservation - Published 2022
Butterfly and Moth Synopsis