Study

Effects of two sagebrush control methods on nongame birds

  • Published source details Castrale J.S. (1982) Effects of two sagebrush control methods on nongame birds. The Journal of Wildlife Management, 46, 945-952

Actions

This study is summarised as evidence for the following.

Action Category

Use prescribed burning on shrublands

Action Link
Bird Conservation

Manually control or remove midstorey and ground-level vegetation (including mowing, chaining, cutting etc) in shrubland

Action Link
Bird Conservation
  1. Use prescribed burning on shrublands

    A controlled study in 1980 in Utah, USA (Castrale 1982), found that response of breeding songbirds in sagebrush habitat chained or burned 3-4 years earlier varied between species. Total bird densities and diversity were similar between a chained site (i.e. vegetation knocked down by dragging a large chain), burned sites and sites without any intervention for 17 years. However, a burned site had 50-86% fewer Brewer's sparrow Spizella breweri (a sagebrush specialist) territories than chained or untreated sites. Horned lark Eremophila alpestris densities were 200-250% higher on the burned site compared to the untreated one. Vesper sparrow Pooecetes gramineus and western meadowlark Sturnella neglecta densities appeared unaffected by sagebrush control.

     

  2. Manually control or remove midstorey and ground-level vegetation (including mowing, chaining, cutting etc) in shrubland

    A controlled study in 1980 in Utah, USA (Castrale 1992), found that response of breeding songbirds in sagebrush habitat chained or burned 3-4 years earlier varied between species. Total bird densities and diversity were similar between a chained site, a burned site and a site without any intervention for 17 years. However, the chained site had significantly more Brewer's sparrow Spizella breweri (a sagebrush specialist) territories than the burned site, and horned lark Eremophila alpestris densities were 175-200% higher on the chained site than untreated sites. Vesper sparrow Pooecetes gramineus and western meadowlark Sturnella neglecta densities appeared unaffected by sagebrush control.

     

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