Collected Evidence: Collected Evidence: Use grazing to remove invasive plant species We found no evidence for the effects of using grazing to remove invasive plant species on forests. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1195https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1195Thu, 19 May 2016 13:10:18 +0100Collected Evidence: Collected Evidence: Use prescribed fire to remove invasive plant species We found no evidence for the effects of using prescribed fire to remove invasive plant species on forests. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.    Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1196https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1196Thu, 19 May 2016 13:11:33 +0100Collected Evidence: Collected Evidence: Mechanically/manually remove invasive plants One replicated, controlled study in Hawaii found that removal of invasive grass species increased understory plant biomass. One replicated, controlled study in the USA found no effect of invasive shrub removal on understory plant diversity. One replicated, controlled study in Ghana found that removal of invasive weed species increased tree seedling height. One replicated, controlled study in Hawaii found no effect of invasive plant removal on growth rate of native species. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1228https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1228Mon, 23 May 2016 10:45:49 +0100Collected Evidence: Collected Evidence: Use herbicides to control invasive plant species One replicated, randomized, controlled study in the USA found no effect of invasive plant control using herbicide on the total native plant species richness.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1229https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1229Mon, 23 May 2016 10:52:27 +0100Collected Evidence: Collected Evidence: Use herbicides to remove invasive plant species One replicated, randomized, controlled study in the USA found no effect of invasive plant control using herbicide on the total native plant species richness.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1314https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1314Fri, 23 Sep 2016 14:49:03 +0100
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.

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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.

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