Collected Evidence: Collected Evidence: Remove vegetation that could compete with planted trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on trees/shrubs planted in brackish/saline wetlands, of removing competing plants.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3335https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3335Sun, 11 Apr 2021 14:09:29 +0100Collected Evidence: Collected Evidence: Install physical supports for planted non-woody plants: brackish/saline wetlandsWe found no studies that evaluated the effects of installing physical supports for emergent, non-woody plants planted in brackish/saline wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3337https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3337Sun, 11 Apr 2021 16:38:28 +0100Collected Evidence: Collected Evidence: Install physical supports for planted trees/shrubs: freshwater wetlandsWe found no studies that evaluated the effects of installing physical supports for trees/shrubs planted in freshwater wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3338https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3338Sun, 11 Apr 2021 16:38:46 +0100Collected Evidence: Collected Evidence: Install physical supports for planted trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects of installing physical supports for trees/shrubs planted in brackish/saline wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3339https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3339Sun, 11 Apr 2021 16:39:01 +0100Collected Evidence: Collected Evidence: Use flotation devices to support planted vegetationWe found no studies that evaluated the effects of using flotation devices to support emergent vegetation planted in wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3340https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3340Sun, 11 Apr 2021 16:45:23 +0100Collected Evidence: Collected Evidence: Plant non-woody plants into moisture-retaining peat pots: brackish/saline wetlandsWe found no studies that evaluated the effects of using moisture-retaining peat pots when planting emergent, non-woody vegetation in brackish/saline wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3342https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3342Sun, 11 Apr 2021 16:46:08 +0100Collected Evidence: Collected Evidence: Plant trees/shrubs into moisture-retaining peat pots: freshwater wetlandsWe found no studies that evaluated the effects of using moisture-retaining peat pots when planting trees/shrubs in freshwater wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3343https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3343Sun, 11 Apr 2021 16:46:17 +0100Collected Evidence: Collected Evidence: Plant trees/shrubs into moisture-retaining peat pots: brackish/saline wetlandsWe found no studies that evaluated the effects of using moisture-retaining peat pots when planting trees/shrubs in brackish/saline wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3344https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3344Sun, 11 Apr 2021 16:46:35 +0100Collected Evidence: Collected Evidence: Plant vegetation into heavy containersWe found no studies that evaluated the effects of planting emergent wetland vegetation into heavy containers.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3345https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3345Sun, 11 Apr 2021 16:55:25 +0100Collected Evidence: Collected Evidence: Allow plants to adjust to field conditions before plantingWe found no studies that evaluated the effects of allowing emergent vegetation to adjust to field conditions before planting in wetlands.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3349https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3349Sun, 11 Apr 2021 16:56:48 +0100Collected Evidence: Collected Evidence: Add root-associated fungi to plants before plantingWe found no studies that evaluated the effects – on emergent wetland plants – of adding root-associated fungi before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3350https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3350Sun, 11 Apr 2021 16:59:38 +0100Collected Evidence: Collected Evidence: Apply root dip to non-woody plants before planting: freshwater wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of freshwater wetlands – of applying a non-fungal root dip before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3351https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3351Sun, 11 Apr 2021 17:12:52 +0100Collected Evidence: Collected Evidence: Apply root dip to trees/shrubs before planting: freshwater wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of freshwater wetlands – of applying a non-fungal root dip before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3353https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3353Sun, 11 Apr 2021 17:13:16 +0100Collected Evidence: Collected Evidence: Apply root dip to trees/shrubs before planting: brackish/saline wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of brackish/saline wetlands – of applying a non-fungal root dip before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3354https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3354Sun, 11 Apr 2021 17:13:29 +0100Collected Evidence: Collected Evidence: Prune roots of non-woody plants before planting: freshwater wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of freshwater wetlands – of pruning their roots before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3355https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3355Sun, 11 Apr 2021 17:23:33 +0100Collected Evidence: Collected Evidence: Prune roots of non-woody plants before planting: brackish/saline wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of brackish/saline wetlands – of pruning their roots before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3356https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3356Sun, 11 Apr 2021 17:23:56 +0100Collected Evidence: Collected Evidence: Prune roots of trees/shrubs before planting: brackish/saline wetlandsWe found no studies that evaluated the effects the effects – on trees/shrubs typical of brackish/saline wetlands – of pruning their roots before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3358https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3358Sun, 11 Apr 2021 17:24:15 +0100Collected Evidence: Collected Evidence: Soak non-woody plants before planting: freshwater wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of freshwater wetlands – of soaking them before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3359https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3359Sun, 11 Apr 2021 17:33:05 +0100Collected Evidence: Collected Evidence: Soak non-woody plants before planting: brackish/saline wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of brackish/saline wetlands – of soaking them before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3360https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3360Sun, 11 Apr 2021 17:33:18 +0100Collected Evidence: Collected Evidence: Soak trees/shrubs before planting: brackish/saline wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of brackish/saline wetlands – of soaking them before planting.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3362https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3362Sun, 11 Apr 2021 17:33:44 +0100Collected Evidence: Collected Evidence: Soak seeds of non-woody plants before sowing: brackish/saline wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of brackish/saline wetlands – of soaking their seeds before sowing.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3364https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3364Sun, 11 Apr 2021 20:16:50 +0100Collected Evidence: Collected Evidence: Soak tree/shrub seeds before sowing: freshwater wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of freshwater wetlands – of soaking their seeds before sowing.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3365https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3365Sun, 11 Apr 2021 20:17:00 +0100Collected Evidence: Collected Evidence: Soak tree/shrub seeds before sowing: brackish/saline wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of brackish/saline wetlands – of soaking their seeds before sowing.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3366https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3366Sun, 11 Apr 2021 20:17:12 +0100Collected Evidence: Collected Evidence: Chill seeds of non-woody plants before sowing: brackish/saline wetlandsWe found no studies that evaluated the effects – on emergent, non-woody plants typical of brackish/saline wetlands – of chilling their seeds before sowing.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3368https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3368Mon, 12 Apr 2021 07:33:39 +0100Collected Evidence: Collected Evidence: Chill tree/shrub seeds before sowing: freshwater wetlandsWe found no studies that evaluated the effects – on trees/shrubs typical of freshwater wetlands – of chilling their seeds before sowing.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2F3369https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3369Mon, 12 Apr 2021 07:33:49 +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.

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 21

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 ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust