Study

Conservation headlands for conservation of arable plant communities in the Breckland Environmetally Sensitive Area, Norfolk and Suffolk, England

  • Published source details Hodkinson D.J., Critchley C.N.R. & Sherwood A.J. (1997) A botanical survey of conservation headlands in Breckland Environmentally Sensistive Area, UK. The Brighton Crop Protection Conference – Weeds, Brighton, 979-984.

Actions

This study is summarised as evidence for the following.

Action Category

Leave headlands in fields unsprayed (conservation headlands)

Action Link
Farmland Conservation
  1. Leave headlands in fields unsprayed (conservation headlands)

    A replicated, controlled, randomized study of cereal headlands on 26 farms in East Anglia, UK (Hodkinson et al. 1997) found no significant difference in plant species richness or density between conservation and sprayed headlands, but plant composition did differ. Although figures tended to be higher in conservation headlands (6-12 m-wide, restricted pesticide applications, selected herbicides only), there was no significant difference between conservation and conventionally sprayed headlands in terms of species richness (10 vs 5), plant density (99 vs 47) or grass tiller count (73 vs 69). Conservation headlands had a significantly greater proportion of annuals and biennials to perennials (0.7 vs 0.5) and ratio of broadleaves (dicotyledons) to grasses (monocotyledons) (0.8 vs 0.6). On nine farms within the Breckland Environmentally Sensitive Area, three conservation headlands and one sprayed headland were selected. One conservation headland was randomly selected from each of an additional 17 farms. Three transects 50 m apart were located within randomly selected 100 m sections of headlands. Along these, three quadrats (0.5 x 0.5 m) at 1, 3 and 5 m from the field boundary in 6 m headlands and 2, 6 and 10 m from the boundary in 12 m headlands were surveyed.

     

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust