Collected Evidence: Collected Evidence: Remove residential or commercial developmentWe found no studies that evaluated the effects, on vegetation, of removing residential or commercial development to restore/create marshes or swamps.   ‘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%2F2946https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2946Mon, 01 Mar 2021 16:14:22 +0000Collected Evidence: Collected Evidence: Retain/create habitat linkages in developed areasWe found no studies that evaluated the effects, on marsh/swamp vegetation, of retaining or creating habitat linkages in developed areas.   ‘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%2F2947https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2947Mon, 01 Mar 2021 16:14:48 +0000Collected Evidence: Collected Evidence: Integrate marshes or swamps into developed areasWe found no studies that evaluated the effects, on vegetation, of incorporating marshes or swamps into developed areas.   ‘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%2F2948https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2948Mon, 01 Mar 2021 16:15:08 +0000Collected Evidence: Collected Evidence: Implement ‘mosaic management’ of farmlandWe found no studies that evaluated the effects, on marsh/swamp vegetation, of implementing mosaic management in agricultural systems.   ‘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%2F2949https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2949Mon, 01 Mar 2021 16:15:18 +0000Collected Evidence: Collected Evidence: Retain/create habitat linkages in farmed areasWe found no studies that evaluated the effects, on marsh/swamp vegetation, of retaining or creating habitat linkages in farmed areas.   ‘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%2F2950https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2950Mon, 22 Mar 2021 13:40:33 +0000Collected Evidence: Collected Evidence: Regulate farming to allow gradual regeneration of marshes or swampsWe found no studies that evaluated the effects, on marsh/swamp vegetation, of regulating farming to allow gradual habitat regeneration.   ‘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%2F2951https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2951Mon, 22 Mar 2021 13:40:41 +0000Collected Evidence: Collected Evidence: Abandon cropland: allow brackish/saline marshes or swamps to recover without active interventionWe found no studies that evaluated the effects, on vegetation, of abandoning cropland with the expectation that brackish/saline marshes or swamps would recover spontaneously.   ‘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%2F2953https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2953Mon, 22 Mar 2021 13:41:20 +0000Collected Evidence: Collected Evidence: Flood cropland when fallow to conserve brackish/salt marshesWe found no studies that evaluated the effects, on brackish/salt marsh vegetation, of flooding cropland during fallow seasons or years.   ‘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%2F2955https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2955Thu, 25 Mar 2021 13:54:21 +0000Collected Evidence: Collected Evidence: Abandon plantations: allow marshes or swamps to recover without active interventionWe found no studies that evaluated the effects, on vegetation, of abandoning plantations with the expectation that marshes or swamps would recover spontaneously.   ‘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%2F2956https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2956Thu, 25 Mar 2021 13:56:05 +0000Collected Evidence: Collected Evidence: Cut/remove/thin forest plantations: brackish/salt marshesWe found no studies that evaluated the effects, on vegetation, of cutting/removing/thinning forest plantations to restore brackish/salt marshes.   ‘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%2F2959https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2959Thu, 25 Mar 2021 13:56:46 +0000Collected Evidence: Collected Evidence: Cut/remove/thin forest plantations: freshwater swampsWe found no studies that evaluated the effects, on vegetation, of cutting/removing/thinning forest plantations to restore freshwater swamps.   ‘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%2F2960https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2960Thu, 25 Mar 2021 13:56:54 +0000Collected Evidence: Collected Evidence: Cut/remove/thin forest plantations: brackish/saline swampsWe found no studies that evaluated the effects, on vegetation, of cutting/removing/thinning forest plantations to restore brackish/saline swamps.   ‘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%2F2961https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2961Thu, 25 Mar 2021 13:57:00 +0000Collected Evidence: Collected Evidence: Use barriers to keep livestock off ungrazed freshwater marshesWe found no studies that evaluated the effects, on vegetation, of using barriers to keep livestock off freshwater marshes that have never (or not recently) been grazed.   ‘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%2F2962https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2962Thu, 25 Mar 2021 14:13:27 +0000Collected Evidence: Collected Evidence: Use barriers to keep livestock off ungrazed freshwater swampsWe found no studies that evaluated the effects, on vegetation, of using barriers to keep livestock off freshwater swamps that have never (or not recently) been grazed.   ‘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%2F2964https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2964Thu, 25 Mar 2021 14:14:26 +0000Collected Evidence: Collected Evidence: Use barriers to keep livestock off ungrazed brackish/saline swampsWe found no studies that evaluated the effects, on vegetation, of using barriers to keep livestock off brackish/saline swamps that have never (or not recently) been grazed.   ‘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%2F2965https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2965Thu, 25 Mar 2021 14:14:42 +0000Collected Evidence: Collected Evidence: Exclude or remove livestock from historically grazed freshwater swampsWe found no studies that evaluated the effects, on vegetation, of excluding or removing livestock from historically grazed freshwater swamps.   ‘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%2F2968https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2968Thu, 25 Mar 2021 14:15:24 +0000Collected Evidence: Collected Evidence: Change season/timing of livestock grazing: brackish/saline swampsWe found no studies that evaluated the effects, on vegetation, of grazing brackish/saline swamps in different seasons or at different times.   ‘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%2F2977https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2977Thu, 25 Mar 2021 14:18:26 +0000Collected Evidence: Collected Evidence: Change type of livestock grazing: freshwater marshesWe found no studies that evaluated the effects, on vegetation, of allowing different types of livestock to graze freshwater marshes.   ‘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%2F2978https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2978Thu, 25 Mar 2021 15:05:08 +0000Collected Evidence: Collected Evidence: Change type of livestock grazing: freshwater swampsWe found no studies that evaluated the effects, on vegetation, of allowing different types of livestock to graze freshwater swamps.   ‘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%2F2980https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2980Thu, 25 Mar 2021 15:05:27 +0000Collected Evidence: Collected Evidence: Change type of livestock grazing: brackish/saline swampsWe found no studies that evaluated the effects, on vegetation, of allowing different types of livestock to graze brackish/saline swamps.   ‘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%2F2981https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2981Thu, 25 Mar 2021 15:05:33 +0000Collected Evidence: Collected Evidence: Retain/create habitat linkages in areas of energy production or miningWe found no studies that evaluated the effects, on marsh/swamp vegetation, of retaining or creating habitat linkages in areas of energy production or mining.   ‘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%2F2986https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2986Thu, 25 Mar 2021 20:18:24 +0000Collected Evidence: Collected Evidence: Physically damage tree/shrub seeds before sowing: freshwater wetlands One study evaluated the effects – on trees/shrubs typical of freshwater wetlands – of physically damaging their seeds before sowing. The study was in a laboratory in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE          OTHER Germination/emergence (1 study): One replicated, controlled study in a laboratory in the USA found that cutting baldcypress Taxodium distichum seeds in half before sowing reduced their germination rate. Growth (1 study): The same study found that cutting baldcypress Taxodium distichum seeds in half before sowing had no significant effect on the height of surviving seedlings, 30 days after germination. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3378https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3378Mon, 12 Apr 2021 08:22:48 +0100Collected Evidence: Collected Evidence: Produce guidance for marsh or swamp conservation One study evaluated the effects, on vegetation or human behaviour, of producing guidance for marsh or swamp conservation. The study was in Sri Lanka. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE   OTHER Survival (1 study): One study of coastal sites in Sri Lanka found that planted mangrove propagules/seedlings had a higher survival rate in sites where published guidance had been consulted to select appropriate areas for planting, than in sites where guidance was not consulted. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3392https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3392Mon, 12 Apr 2021 12:07:08 +0100Collected Evidence: Collected Evidence: Use marketing strategies to increase the value of marshes or swamps One study evaluated the effects, on vegetation or human behaviour, of using marketing strategies to increase the value of marshes or swamps. The study was in Vietnam. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE   OTHER Human behaviour (1 study): One before-and-after study in Vietnam reported that helping local people to sell handicrafts made from marsh plants in tourist markets (along with training to improve the quality of those products) increased their income. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3393https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3393Mon, 12 Apr 2021 12:09:17 +0100Collected Evidence: Collected Evidence: Lobby/campaign/demonstrate to protect marshes or swamps One study evaluated the effects, on vegetation or human behaviour, of lobbying/campaigning/demonstrating to protect marshes or swamps. The study was in Brazil. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE   OTHER Human behaviour (1 study): One study in Brazil reported after lobbying local and national governments, a wetland complex was designated as a sustainable development reserve (rather than being strictly protected) and a sustainable development research institute was created. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3394https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3394Mon, 12 Apr 2021 12:11:04 +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
For a full list of, and information about, our champions:
All Evidence Champions
About our champions, why and how to become one:
Become an Evidence Champion

This website uses Cookies

We use limited Cookies to run the site and to analyse our traffic (none for site vendors). By using this site, you will be providing your consent to our use of Cookies.

Accept & continue