Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Use signs and access restrictions to reduce disturbance We found no studies that evaluated the effects of placing signs to discourage access to sensitive areas of shrub habitat on shrublands. '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%2F1620https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1620Sun, 22 Oct 2017 10:36:35 +0100Collected Evidence: Collected Evidence: Use prescribed burning to mimic natural fire cycle We found no studies that evaluated the effects of using prescribed burning to mimic the natural fire cycle on shrublands. '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%2F1622https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1622Sun, 22 Oct 2017 10:38:50 +0100Collected Evidence: Collected Evidence: Use prescribed burning to reduce potential for large wild fires We found no studies that evaluated the effects of using prescribed burning to reduce the potential for large wild fires on shrublands. '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%2F1623https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1623Sun, 22 Oct 2017 10:39:39 +0100Collected Evidence: Collected Evidence: Use herbicide to control grass Two randomized, controlled studies in the UK and the USA found that spraying with herbicide did not affect the number of shrub or heathland plant seedlings. One of these studies found that applying herbicide increased the abundance of one of four heathland plants, but reduced the abundance of one heathland species. However, one randomized, controlled study in the UK found that applying herbicide increased cover of heathland species. One randomized, replicated, controlled study in the UK reported no effect on the cover of common heather. One randomized, replicated study in the UK reported mixed effects of herbicide application on shrub cover. Two randomized, controlled studies in the USA and the UK found that herbicide application did not change the cover of forb species. However, one randomized, controlled, study in the USA found that herbicide application increased native forb cover. Four of five controlled studies (two of which were replicated) in the USA found that grass cover or non-native grass cover were lower in areas where herbicides were used to control grass than areas were herbicide was not used. Two randomized, replicated, controlled studies in the UK found that herbicide reduced cover of purple moor grass, but not cover of three grass/reed species. Two randomized, controlled studies in the UK found that herbicide application did not reduce grass cover. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1643https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1643Sun, 22 Oct 2017 13:23:19 +0100Collected Evidence: Collected Evidence: Use herbicide to control bracken One controlled, before-and-after trial in the UK found that applying herbicide to control bracken increased the number of heather seedlings. However, two randomized, controlled studies in the UK found that spraying with herbicide did not increase heather cover. One randomized, controlled study in the UK found that applying herbicide to control bracken increased heather biomass. One replicated, randomized, controlled study in the UK found that the application of herbicide increased the number of plant species in a heathland site. However, one replicated, randomized, controlled study in the UK found that spraying bracken with herbicide had no effect on species richness or diversity. One randomized, controlled study in the UK found that applying herbicide to control bracken increased the cover of wavy hair-grass and sheep’s fescue. One controlled study in the UK found that applying herbicide to control bracken increased the cover of gorse and the abundance of common cow-wheat. One controlled, before-and-after trial in the UK found that the application of herbicide reduced the abundance of bracken but increased the number of silver birch seedlings. Three randomized, controlled studies in the UK found that the application of herbicide reduced the biomass or cover of bracken. However, one controlled study in the UK found that applying herbicide did not change the abundance of bracken. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1652https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1652Sun, 22 Oct 2017 14:09:58 +0100Collected Evidence: Collected Evidence: Use herbicide and sow seed of shrubland plants to control bracken We found no studies that evaluated the effects of controlling bracken by applying herbicide and sowing seed on shrublands. '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%2F1658https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1658Sun, 22 Oct 2017 14:56:07 +0100Collected Evidence: Collected Evidence: Use herbicide and remove leaf litter to control bracken One randomized, controlled study in the UK found that using herbicide and removing leaf litter did not increase total plant biomass after eight years. The same study found that for three of six years, heather biomass was higher in areas where herbicide was sprayed and leaf litter was removed than in areas that were sprayed with herbicide. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1660https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1660Sun, 22 Oct 2017 14:59:23 +0100Collected Evidence: Collected Evidence: Use prescribed burning to control trees One randomized, replicated, controlled, before-and-after trial in the USA found that burning to control trees did not change cover of two of three grass species. One randomized, controlled study in Italy found that prescribed burning to control trees reduced cover of common heather, increased cover of purple moor grass, and had mixed effects on the basal area of trees. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1721https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1721Wed, 22 Nov 2017 12:48:12 +0000Collected Evidence: Collected Evidence: Use prescribed burning to control grass One replicated controlled, paired, before-and-after study in the UK found that prescribed burning to reduce the cover of purple moor grass, did not reduce its cover but did reduce the cover of common heather. One randomized, replicated, controlled study in the UK found that prescribed burning initially reduced vegetation height, but this recovered over time. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1723https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1723Wed, 22 Nov 2017 16:27:49 +0000