Study

Limited effects of large-scale riparian restoration on seed banks in agriculture

  • Published source details Langridge S.M. (2011) Limited effects of large-scale riparian restoration on seed banks in agriculture. Restoration Ecology, 19, 607-616

Actions

This study is summarised as evidence for the following.

Action Category

Pest regulation: Restore habitat along watercourses

Action Link
Mediterranean Farmland

Other biodiversity: Restore habitat along watercourses

Action Link
Mediterranean Farmland
  1. Pest regulation: Restore habitat along watercourses

    A replicated site comparison in 1991–2004 in 26 riparian sites along the Sacramento River, California, USA, found more weed seeds in orchards next to restored habitat, compared to remnant habitat. Pest numbers: More weed seeds were found in orchards next to restored habitat, compared to remnant habitat (data reported as log abundance). Implementation options: More weed seeds were found in orchards next to older restored sites, compared to younger restored sites (data not reported). Methods: Soil samples were collected from 26 walnut plots, 0–5.6 km from restored riparian, remnant riparian, and agricultural habitats. Restored sites were formerly farmland. Restoration included disking, burning, furrowing, levelling, and spraying with herbicide, and replanting. On each walnut farm, soil samples (10 cm depth) were collected from seven points adjacent to restored or remnant forest and nine points within the walnut orchard, in March 2004. Seeds were germinated and identified in a greenhouse.

     

  2. Other biodiversity: Restore habitat along watercourses

    A replicated site comparison in 1991–2004 in 26 riparian sites along the Sacramento River, California, USA, found fewer seed species and native seed species, more seeds in total, but fewer native seeds, in orchards next to restored habitats, compared to orchards next to remnant habitats. Plants: Fewer species (36–50 vs 68) and native species (6–10 vs 13) were found in orchards next to restored habitats. More seeds were found next to restored habitats (data reported in log units), but fewer native seeds were found, and there was no difference in invasive seeds. Implementation options: More seeds were found next to older restored habitats, compared to younger (data not reported). Methods: Soil samples were collected from 26 walnut plots, 0–5.6 km from restored riparian, remnant riparian, or agricultural habitats. Restored sites were formerly farmland. Restoration included disking, burning, furrowing, levelling, and spraying with herbicide, and replanting. On each walnut farm, soil samples (10 cm depth) were collected from seven points adjacent to restored or remnant forest and nine points within the walnut orchard, in March 2004. Seeds were germinated and identified in a greenhouse.

     

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 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