Collected Evidence: Collected Evidence: Actively manage water level before/after planting trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of actively managing water levels in brackish/saline wetlands planted with trees/shrubs.   ‘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%2Fconservationevidencejournal.com%2Factions%2F3284https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3284Sat, 10 Apr 2021 17:16:15 +0100Collected Evidence: Collected Evidence: Install physical supports for planted non-woody plants: freshwater wetlands One study evaluated the effects of installing physical supports for emergent, non-woody plants planted in freshwater wetlands. The study was in the Netherlands. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE Biomass/plant (1 study): One replicated, controlled study at the edge of a freshwater lake in the Netherlands found that supporting planted bulrushes Scirpus with wire mesh had no significant effect on biomass of individual plants after 1–2 years. Stems/plant (1 study): The same study found that supporting planted bulrushes Scirpus with wire mesh had no significant effect on number of shoots/plant after 1–2 years. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3336https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3336Sun, 11 Apr 2021 16:38:18 +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%2Fconservationevidencejournal.com%2Factions%2F3337https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3338https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3339https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3340https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3340Sun, 11 Apr 2021 16:45:23 +0100Collected Evidence: Collected Evidence: Plant non-woody plants into moisture-retaining peat pots: freshwater wetlands One study evaluated the effects of using moisture-retaining peat pots when planting emergent, non-woody vegetation in freshwater wetlands. The study was in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (1 study): One replicated, randomized, paired, controlled study in a wetland in the USA found that tussock sedge Carex stricta cover was similar across plots, after two growing seasons, whether sedges were planted into peat pots or into existing wetland soil. VEGETATION STRUCTURE Individual plant size (1 study): One replicated, randomized, paired, controlled study in a wetland in the USA found that the biomass of tussock sedge Carex stricta plants was similar, after two growing seasons, whether they were planted into peat pots or into existing wetland soil. OTHER Survival (1 study): One replicated, randomized, paired, controlled study in a wetland in the USA found that the survival rate of tussock sedge Carex stricta plants was similar, after two growing seasons, whether they were planted into peat pots or into existing wetland soil. Growth (1 study): The same study found that the growth rate of tussock sedge Carex stricta was typically similar, over two growing seasons, when planted into peat pots or into existing wetland soil. However, in a dry area and in a dry year, planting in peat pots did increase the growth rate. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3341https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3341Sun, 11 Apr 2021 16:45:47 +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%2Fconservationevidencejournal.com%2Factions%2F3342https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3343https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3344https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3345https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3349https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3350https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3351https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3351Sun, 11 Apr 2021 17:12:52 +0100Collected Evidence: Collected Evidence: Apply root dip to non-woody plants before planting: brackish/saline wetlands One study evaluated the effects – on emergent, non-woody plants typical of brackish/saline wetlands – of applying a non-fungal root dip before planting. The study was in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (1 study): One replicated, randomized, paired, controlled study on mudflats in the USA found that root-dipping smooth cordgrass Spartina alterniflora before planting had mixed effects on cordgrass density after 1–2 growing seasons, but never increased it. VEGETATION STRUCTURE Height (1 study): One replicated, randomized, paired, controlled study on mudflats in the USA found that root-dipping smooth cordgrass Spartina alterniflora before planting had mixed effects on cordgrass height after two growing seasons. OTHER Survival (1 study): One replicated, randomized, paired, controlled study on mudflats in the USA found that root-dipped smooth cordgrass Spartina alterniflora plants typically had a lower survival rate, after one growing season, than plants that had not been root-dipped. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3352https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3352Sun, 11 Apr 2021 17:13:05 +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%2Fconservationevidencejournal.com%2Factions%2F3353https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3354https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3355https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3356https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3356Sun, 11 Apr 2021 17:23:56 +0100Collected Evidence: Collected Evidence: Prune roots of trees/shrubs before planting: freshwater wetlands Two studies evaluated the effects – on trees/shrubs typical of freshwater wetlands – of pruning their roots before planting. Both studies were in the USA. One study was in a laboratory. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE   OTHER Survival (2 studies): One replicated, controlled study in created wetlands in the USA reported that root-pruned red maple Acer rubrum seedlings had a higher survival rate than unpruned seedlings, 1–2 years after planting. One replicated, randomized, controlled study in a laboratory in the USA found that root-pruned and unpruned Nuttall oak Quercus nuttallii seedlings had similar survival rates, 108 days after planting. Growth (1 study): One replicated, randomized, controlled study in a laboratory in the USA found that root-pruned and unpruned Nuttall oak Quercus nuttallii seedlings grew in height by a similar amount over the first 108 days after planting. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3357https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3357Sun, 11 Apr 2021 17:24:04 +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%2Fconservationevidencejournal.com%2Factions%2F3358https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3359https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F3360https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3360Sun, 11 Apr 2021 17:33:18 +0100Collected Evidence: Collected Evidence: Soak trees/shrubs before planting: freshwater wetlands One study evaluated the effects – on trees/shrubs typical of freshwater wetlands – of soaking them before planting. The study was in a greenhouse in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE Biomass/plant (1 study): One replicated, randomized, controlled study in a greenhouse in the USA found that soaking black willow Salix nigra cuttings before planting had no significant effect on the above-ground biomass of surviving seedlings, over the 48 days after planting. OTHER Survival (1 study): One replicated, randomized, controlled study in a greenhouse in the USA found that the effect, on survival, of soaking black willow cuttings before planting depended on the water regime after planting. However, all cuttings soaked for 15 days before planting died within 42 days of planting. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3361https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3361Sun, 11 Apr 2021 17:33:34 +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%2Fconservationevidencejournal.com%2Factions%2F3362https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3362Sun, 11 Apr 2021 17:33:44 +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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