Study

Arthropod and plant communities as indicators of land rehabilitation effectiveness in a semi-arid shrub-steppe

  • Published source details Gardner E.T., Anderson V.J. & Johnson R.L. (2009) Arthropod and plant communities as indicators of land rehabilitation effectiveness in a semi-arid shrub-steppe. Western North American Naturalist, 69, 521-536.

Actions

This study is summarised as evidence for the following.

Action Category

Sow seeds

Action Link
Shrubland and Heathland Conservation
  1. Sow seeds

    A site comparison study in 1994–2003 in sagebrush scrub habitat that had previously been burnt by wildfire in Utah, USA (Gardner et al. 2009) found that sowing seeds increased shrub and perennial grass cover, but decreased cover of weeds. After nine years, shrub cover in areas where seeds had been sown was higher (10%) than in areas where seeds had not been sown (0%), but not significantly different to that found in undisturbed shrublands (13%). Perennial grass cover was also higher in areas where seeds had been sown (5%) than in unsown areas (0%) but was also higher than that found in undisturbed areas (1%). Cover of weeds was lower in areas where seeds had been sown (2.3%) than in unsown areas (55%), and it was also lower than in undisturbed areas (12%). In 1994 a wildfire burned part of the study area. Part of the burned area was subsequently seeded with a mixture of native and non-native shrubs and grasses, while another part was not seeded. A nearby unburned area was also used for comparison. In 2003 twenty 0.25 m2 quadrats were randomly located in each area and vegetation cover estimated.

    (Summarised by: Phil Martin)

Output references
What Works 2021 cover

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, 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 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


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