Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Re-route paths to reduce habitat disturbance One before-and-after trial in Australia found that closing paths did not alter shrub cover, but did increase the number of plant species in an alpine shrubland. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1619https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1619Sun, 22 Oct 2017 10:35:44 +0100Collected Evidence: Collected Evidence: Apply herbicide to trees One replicated, controlled, before-and-after study in South Africa found that using herbicide to control trees increased plant diversity but did not increase shrub cover. One randomized, replicated, controlled study in the UK found that herbicide treatment of trees increased the abundance of common heather seedlings. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1629https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1629Sun, 22 Oct 2017 11:29:53 +0100Collected Evidence: Collected Evidence: Cut trees and remove leaf litter One before-and-after trial in the Netherlands found that cutting trees and removing the litter layer increased the cover of two heather species and of three grass species. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1631https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1631Sun, 22 Oct 2017 11:46:14 +0100Collected Evidence: Collected Evidence: Cut trees and remove tree seedlings A controlled, before-and-after study in South Africa found that cutting orange wattle trees and removing seedlings of the same species increased plant diversity and shrub cover. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1632https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1632Sun, 22 Oct 2017 11:51:22 +0100Collected Evidence: Collected Evidence: Use grazing to control trees One randomized, controlled, before-and-after study in Italy found that grazing to reduce tree cover reduced cover of common heather and the basal area of trees, but did not alter cover of purple moor grass. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1634https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1634Sun, 22 Oct 2017 11:59:55 +0100Collected Evidence: Collected Evidence: Rake to control grass A randomized, replicated, controlled, paired study in the USA found that cover of both invasive and native grasses, as well as forbs was lower in areas that were raked than in areas that were not raked, but that the number of annual plants species did not differ. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1640https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1640Sun, 22 Oct 2017 13:13:04 +0100Collected Evidence: Collected Evidence: Cut/mow and rotovate to control grass One controlled study in the UK found that mowing followed by rotovating increased the number of heathland plant species in one of two sites. The same study found that the presence of a minority of heathland and non-heathland species increased. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1641https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1641Sun, 22 Oct 2017 13:14:28 +0100Collected Evidence: Collected Evidence: Apply herbicide and sow seeds of shrubland plants to control grass One randomized, controlled study in the USA found that areas where herbicide was sprayed and seeds of shrubland species were sown had more shrub seedlings than areas that were not sprayed or sown with seeds. One randomized, replicated, controlled study in the USA found that spraying with herbicide and sowing seeds of shrubland species did not increase the cover of native plant species, but did increase the number of native plant species. One of two studies in the USA found that spraying with herbicide and sowing seeds of shrubland species reduced non-native grass cover. One study in the USA found that applying herbicide and sowing seeds of shrubland species did not reduced the cover of non-native grasses Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1644https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1644Sun, 22 Oct 2017 13:30:11 +0100Collected Evidence: Collected Evidence: Apply herbicide and remove plants to control grass One randomized, replicated, controlled, paired study in the USA found that areas sprayed with herbicide and weeded to control non-native grass cover had higher cover of native grasses and forbs than areas that were not sprayed or weeded, but not a higher number of native plant species. The same study found that spraying with herbicide and weeding reduced non-native grass cover. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1645https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1645Sun, 22 Oct 2017 13:33:12 +0100Collected Evidence: Collected Evidence: Use grazing or alter livestock to control grass One replicated, controlled, before-and-after study in the Netherlands found that grazing to reduce grass cover had mixed effects on cover of common heather and cross-leaved heath. One replicated, controlled, before-and-after study in the Netherlands found that cover of wavy-hair grass increased and one before-and-after study in Spain found a reduction in grass height. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1646https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1646Sun, 22 Oct 2017 13:34:04 +0100Collected Evidence: Collected Evidence: Strip turf to control grass One controlled study in the UK found that cutting and removing turf increased the number of heathland plants. The same study found that the presence of a small number of heathland plants increased, and that the presence of a small number of non-heathland plants decreased. One replicated, controlled study in the UK found that presence of heather was similar in areas where turf was cut and areas that were mown or rotovated. One replicated, controlled study in the UK found that the presence of wavy hair grass was similar in areas where turf was cut and those that were mown or rotovated. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1647https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1647Sun, 22 Oct 2017 13:35:48 +0100Collected Evidence: Collected Evidence: Rotovate to control grass One replicated, controlled study in the UK found that rotovating did not alter the presence of heather compared to mowing or cutting. The same study found that wavy hair grass presence was not altered by rotovating, relative to areas that were mown or cut. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1648https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1648Sun, 22 Oct 2017 13:42:22 +0100Collected Evidence: Collected Evidence: Add mulch to control grass One randomized, controlled study in the USA found that areas where mulch was used to control grass cover had a similar number of shrub seedlings to areas where mulch was not applied. The same study found that mulch application did not reduce grass cover. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1649https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1649Sun, 22 Oct 2017 13:43:52 +0100Collected Evidence: Collected Evidence: Reduce numbers of large herbivores One before-and-after trial in the USA found that removing feral sheep, cattle and horses increased shrub cover and reduced grass cover. One replicated study in the UK found that reducing grazing pressure by red deer increased the cover and height of common heather. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1663https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1663Sun, 22 Oct 2017 15:06:18 +0100Collected Evidence: Collected Evidence: Mow shrubland to reduce impacts of pollutants One randomized, replicated, controlled study in the UK found that mowing to reduce the impact of nitrogen deposition did not alter shoot length of common heather or the number of purple moor grass seedlings. One controlled study in the UK found that mowing a heathland affected by nitrogen pollution did not alter the cover or shoot length of heather compared to areas where prescribed burning was used. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1669https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1669Sun, 22 Oct 2017 15:15:12 +0100Collected Evidence: Collected Evidence: Burn shrublands to reduce impacts of pollutants One randomized, replicated, controlled study in the UK found that prescribed burning to reduce the impact of nitrogen deposition did not alter the shoot length of common heather or the number of purple moor grass seedlings compared to mowing. A controlled study in the UK found that burning to reduce the concentration of pollutants in a heathland affected by nitrogen pollution did not alter the cover or shoot length of heather relative to areas that were mowed. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1670https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1670Sun, 22 Oct 2017 15:17:05 +0100Collected Evidence: Collected Evidence: Use erosion blankets/mats to aid plant establishment One replicated, randomized, controlled study in the USA found that using an erosion control blanket increased the height of two shrub species. One replicated, randomized, controlled study in the USA did not find an increase in the number of shrub species, but one controlled study in China did find an increase in plant diversity following the use of erosion control blankets. The same study found an increase in plant biomass and cover. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1692https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1692Mon, 23 Oct 2017 10:42:07 +0100Collected Evidence: Collected Evidence: Add fertilizer to soil (alongside planting/seeding) A replicated, controlled study in Iceland found that adding fertilizer and sowing seeds increased cover of shrubs and trees in a majority of cases. The same study showed an increase in vegetation cover in two of three cases. One controlled study in the USA found that adding fertilizer increased the biomass of four-wing saltbush in a majority of cases. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1704https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1704Mon, 23 Oct 2017 11:35:39 +0100Collected Evidence: Collected Evidence: Add peat to soil (alongside planting/seeding) One replicated, randomized, controlled study in the UK found that adding peat to soil and sowing seed increased the cover of common heather in the majority of cases, compared to seeding alone. One replicated, randomized, controlled study in the UK found that adding peat to soil and sowing seed increased the density of heather seedlings, and led to larger heather plants than seeding alone, but that no seedlings survived after two years. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1705https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1705Mon, 23 Oct 2017 11:54:26 +0100Collected Evidence: Collected Evidence: Add mulch to soil (alongside planting/seeding) A replicated, randomized, controlled study in the USA found that using mulch did not increase the number of shrubs, or the height of California sagebrush. A randomized, controlled study in South Africa found that applying mulch and sowing seeds increased the number of seedlings, but not their survival. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1706https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1706Mon, 23 Oct 2017 11:59:05 +0100Collected Evidence: Collected Evidence: Plant/sow seeds of nurse plants alongside focal plants A randomized, replicated, controlled study in the UK found that sowing seeds of nurse plants and heathland plants did not increase the cover of common heather. One replicated, randomized, controlled study in the USA found that sowing seeds of nurse plants and California sagebrush seeds together reduced survival of shrubs in more than half of cases. The same study found that California sagebrush biomass was also reduced when its seeds were sown with those of nurse plants. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1713https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1713Mon, 23 Oct 2017 13:44:40 +0100Collected Evidence: Collected Evidence: Add root associated bacteria/fungi to introduced plants Two controlled studies (one of which was randomized) in Spain found that adding rhizobacteria to soil increased the biomass of shrubs. One of these studies also found an increase in shrub height. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1716https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1716Mon, 23 Oct 2017 14:00:24 +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%2Fconservationevidencejournal.com%2Factions%2F1721https%3A%2F%2Fconservationevidencejournal.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%2Fconservationevidencejournal.com%2Factions%2F1723https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1723Wed, 22 Nov 2017 16:27:49 +0000Collected Evidence: Collected Evidence: Disturb topsoil A controlled study in a former pine plantation in South Africa found that digging soil did not alter vegetation cover or the density of native plants. One randomized, replicated, controlled study in the UK found that soil disturbance increased the abundance or species richness of specialist and generalist plant species. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1728https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F1728Thu, 23 Nov 2017 11:49:36 +0000