Collected Evidence: Collected Evidence: Manage stone-faced hedge banks to benefit wildlife We have captured no evidence for the effects of managing stone-faced hedge banks to benefit wildlife on farmland wildlife. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested 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%2F73https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F73Mon, 24 Oct 2011 21:04:36 +0100Collected Evidence: Collected Evidence: Manage short-rotation coppice to benefit wildlife (includes 8 m rides) We have captured no evidence for the effects of managing short-rotation coppice to benefit wildlife (including 8 m rides) on farmland wildlife. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested 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%2F90https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F90Mon, 24 Oct 2011 21:32:35 +0100Collected Evidence: Collected Evidence: Manage stone-faced hedge banks to benefit birds We found no evidence for the effects of managing stone-faced hedge banks on bird populations. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested 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%2F179https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F179Wed, 30 May 2012 14:13:00 +0100Collected Evidence: Collected Evidence: Manage perennial bioenergy crops to benefit wildlife We found no evidence for the effects of managing bioenergy crops for wildlife on bird populations. 'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested 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 actionCollected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F242https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F242Wed, 18 Jul 2012 10:44:51 +0100Collected Evidence: Collected Evidence: Manage water level in wetlands Of six studies, one replicated, controlled study from the USA found that bird diversity was affected by maintaining water levels at different levels. A study from the USA found that ducks were more abundant when high water levels were maintained on a wetland site. Geese were more abundant when lower levels were maintained. Three studies from the USA and Canada, two replicated, found that different species showed preferences for different water levels in wetlands. A replicated study from the UK found that great bitterns established territories earlier when deep water levels were maintained, but this had no effect on productivity. A review from Spain found that management successfully maintained water near a greater flamingo nesting area, but the effects of this were not measured.  Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F355https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F355Sun, 29 Jul 2012 16:49:45 +0100Collected Evidence: Collected Evidence: Manage the agricultural landscape to enhance floral resources One large replicated controlled trial showed that the average abundance of long-tongued bumblebees on field margins was positively correlated with the number of ‘pollen and nectar’ agri-environment agreements in a 10 km grid square. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F362https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F362Fri, 03 Aug 2012 12:08:24 +0100Collected Evidence: Collected Evidence: Manage silviculture practices in plantations Studies investigating the effects of silviculture practices are discussed in ‘Threat: Biological resource use – Logging & wood harvesting’.      Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F792https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F792Thu, 22 Aug 2013 14:35:09 +0100Collected Evidence: Collected Evidence: Manage livestock water troughs as a drinking resource for bats Two studies evaluated the effects of managing livestock water troughs as a drinking resource for bats. Both studies were in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (2 STUDIES)      Use (2 studies): One replicated, paired sites study in the USA found that removing livestock modifications from water troughs resulted in bats drinking from them more frequently. One paired sites study in the USA found that livestock water tanks that were larger, full of water or surrounded by sparse vegetation had more bats drinking from them than smaller, half full tanks surrounded by no or dense vegetation. Behaviour change (1 study): One replicated, paired sites study in the USA found that when livestock modifications were removed from water troughs, bats approached troughs fewer times before successfully drinking from them. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1951https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1951Tue, 04 Dec 2018 12:19:55 +0000Collected Evidence: Collected Evidence: Manage natural water bodies in arid areas to prevent desiccation We found no studies that evaluated the effects of managing natural water bodies in arid areas to prevent desiccation on bat populations. ‘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%2F2027https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2027Wed, 05 Dec 2018 18:16:36 +0000Collected Evidence: Collected Evidence: Manage microclimate of artificial bat roosts Three studies evaluated the effects of managing the microclimate of artificial bat roosts on bat populations. Two studies were in the UK and one in Spain. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): One before-and-after study in Spain found more bats in two artificial roosts within buildings after they had been modified to reduce internal roost temperatures. BEHAVIOUR (2 STUDIES) Use (2 studies): One replicated, before-and-after study in the UK found that heated bat boxes were used by common pipistrelle bats at one of seven sites, but none were used by maternity colonies. One replicated study in the UK found that none of the 12 heated bat boxes installed within churches were used by displaced Natterer’s bats. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2052https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2052Fri, 07 Dec 2018 19:21:01 +0000Collected Evidence: Collected Evidence: Manage vegetation using livestock grazing Six studies evaluated the effects on mammals of managing vegetation using livestock grazing. Four studies were in the USA, one was in Norway and one was in Mexico. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A replicated, controlled, before-and-after study in the USA found that introduction of livestock grazing increased the abundance of Stephens’ kangaroo rat after two years. BEHAVIOUR (5 STUDIES) Use (4 studies): One of four studies (three replicated controlled studies and a before-and-after study), in the USA and Norway, found that sheep-grazed pasture was used by feeding reindeer more than was ungrazed pasture. One found mixed effects on Rocky Mountain elk use of grazed plots and another found no response of Rocky Mountain elk to spring cattle grazing. The forth study found cattle grazing to increase the proportion of rough fescue biomass utilized by elk in the first, but not second winter after grazing. Behaviour change (1 study): A replicated, paired sites study in Mexico found that in pastures grazed by cattle, Tehuantepec jackrabbits spent more time feeding than they did in pastures not grazed by cattle. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2545https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2545Tue, 09 Jun 2020 09:12:59 +0100Collected Evidence: Collected Evidence: Manage vegetation using grazing by wild herbivores Two studies evaluated the effects on mammals of managing vegetation using grazing by wild herbivores. One study was in the USA and one was in South Africa. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (2 studies): A site comparison study in the USA found that areas with higher numbers of wild herbivore grazers hosted more small mammals than did areas grazed by fewer wild herbivores. A study in South Africa found that grazing by Cape mountain zebras did not lead to a higher population of bontebok. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2548https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2548Tue, 09 Jun 2020 09:59:23 +0100Collected Evidence: Collected Evidence: Manage vegetation along utility and service line corridors to increase foraging habitat for bats We found no studies that evaluated the effects of managing vegetation along utility and service line corridors to increase forgaing habitat for bats on bat populations. ‘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%2F2944https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2944Fri, 12 Feb 2021 17:57:07 +0000Collected Evidence: Collected Evidence: Manage water level to control problematic plantsWe found no studies that evaluated the effects, on vegetation, of managing water levels to control problematic plants in 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%2F3099https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3099Sun, 04 Apr 2021 09:18:38 +0100Collected Evidence: Collected Evidence: Manage or restrict harvesting of species on subtidal artificial structures Three studies examined the effects of managing or restricting harvesting of species on subtidal artificial structures on the biodiversity of those structures or on human behaviour likely to influence the biodiversity of those structures. The studies were on open coastlines in Italy. COMMUNITY RESPONSE (1 STUDY) Fish community composition (1 study): One site comparison study in Italy found different fish community composition around subtidal artificial structures with and without harvesting restrictions. The structure with harvesting restrictions supported species that were absent from unrestricted structures. Fish richness/diversity (1 study): One site comparison study in Italy found higher fish species richness around a subtidal artificial structure with harvesting restrictions compared with unrestricted structures. POPULATION RESPONSE (2 STUDIES) Invertebrate abundance (1 study): One site comparison study in Italy found similar sea urchin abundances around subtidal artificial structures with and without harvesting restrictions. Fish abundance (2 studies): One of two site comparison studies in Italy found similar total fish abundance around subtidal artificial structures with and without harvesting restrictions, but that abundances varied depending on the species and the survey date. One study found higher seabream abundances around the structure with harvesting restrictions. BEHAVIOUR (1 STUDY) Human behaviour change (1 study): One replicated, randomized study in Italy reported that legally restricting human access on subidal artificial structures did not prevent people from harvesting invertebrates and fishes on and around structures. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3457https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3457Mon, 13 Sep 2021 14:55:24 +0100Collected Evidence: Collected Evidence: Manage or restrict harvesting of species on intertidal artificial structures Two studies examined the effects of managing or restricting harvesting of species on intertidal artificial structures on the biodiversity of those structures or on human behaviour likely to influence the biodiversity of those structures. One study was on open coastlines in Italy, and one was in ports and on open coastlines in Gibraltar and southeast Spain. COMMUNITY RESPONSE (0 STUDIES)   POPULATION RESPONSE (1 STUDY) Invertebrate abundance (1 study): One replicated, site comparison study in Gibraltar and Spain reported that restricting human access on intertidal artificial structures did not increase the limpet abundance on structure surfaces. Invertebrate condition (1 study): One replicated, site comparison study in Gibraltar and Spain found that restricting human access on intertidal artificial structures resulted in larger limpets with more balanced sex ratios than unrestricted structures. BEHAVIOUR (1 STUDY) Human behaviour change (1 study): One replicated, randomized study in Italy reported that legally restricting human access on intertidal artificial structures did not prevent people from harvesting invertebrates and fishes on and around structures. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3458https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3458Mon, 13 Sep 2021 15:57:49 +0100Collected Evidence: Collected Evidence: Manage tillage practices We found no studies that evaluated the effects of managing tillage practices on reptile populations. ‘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%2F3488https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3488Fri, 03 Dec 2021 13:43:17 +0000Collected Evidence: Collected Evidence: Manage vegetation using livestock grazing Two studies evaluated the effects of managing vegetation using livestock grazing on reptile populations. One study was in France and one was in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (1 study): One site comparison study in France found that one reptile species was more abundant in areas grazed by sheep than in areas managed by burning, whereas the abundance of five other species was similar in all areas. Reproductive success (1 study): One before-and-after study in the USA found that after grazing cattle to restore bog turtle habitat, along with providing artificial nest covers, more bog turtle eggs were laid and hatching success was higher than before. BEHAVIOUR (1 STUDY) Use (1 study): One before-and-after study in the USA found that bog turtle nests were laid only in areas that had been grazed in the current or previous growing season. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3711https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3711Mon, 13 Dec 2021 13:56:11 +0000Collected Evidence: Collected Evidence: Manage vegetation using herbicides Seven studies evaluated the effects of managing vegetation using herbicides on reptile populations. Four studies were in the USA, two were in Australia and one was in the US Virgin Islands3. COMMUNITY RESPONSE (3 STUDIES) Community composition (1 study): One replicated, randomized, controlled, before-and-after study in Australia found that areas where an invasive shrub was sprayed with herbicide had similar composition of reptile species compared to unsprayed areas. Richness/diversity (3 studies): Three replicated, randomized, controlled, before-and-after studies in Australia and the USA found that areas where vegetation was treated with herbicides had similar richness of reptile species or combined reptile and amphibian species compared to areas not treated with herbicide. POPULATION RESPONSE (6 STUDIES) Abundance (4 studies): Three of four studies (including three replicated, randomized, controlled, before-and-after studies) in the USA and Australia found that areas where vegetation was treated with herbicides had similar abundance of all or most reptiles compared to areas not treated with herbicide. The other study found that after glyphosate was applied to pond vegetation, fewer mangrove salt marsh snakes were found compared to immediately before application. Reproductive success (2 studies): One of two controlled studies (including one replicated study and one randomized study) in the USA and US Virgin Islands found that exposure of red-eared slider eggs to high levels of glyphosate caused a reduction in hatching success. The other study found that leatherback turtle nests in areas treated with herbicide had similar hatching and emergence success compared to nests in untreated areas. Survival (1 studies): One randomized, controlled study in the US Virgin Islands found that in areas treated with herbicide, fewer leatherback turtle hatchlings became entangled in vegetation than in untreated areas. BEHAVIOUR (1 STUDY) Use (1 study): One replicated, randomized, controlled study in Australia found that pink-tailed worm-lizards were not found in restored rocky areas treated with herbicide, but were found in restored areas not treated with herbicide. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3712https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3712Mon, 13 Dec 2021 14:00:47 +0000Collected Evidence: Collected Evidence: Manage vegetation by cutting or mowing Seven studies evaluated the effects of managing vegetation by cutting or mowing on reptile populations. Five studies were in the USA, one was in Australia, and one was in Spain. COMMUNITY RESPONSE (3 STUDIES) Richness/diversity (3 studies): Three replicated, randomized, controlled studies (including one before-and-after study) in the USA found that areas where vegetation was managed by cutting had similar reptile species richness compared to areas with no cutting. POPULATION RESPONSE (5 STUDIES) Abundance (4 studies): Three of four replicated, controlled studies (including three randomized studies) in the USA found that areas where vegetation was managed by cutting had similar reptile abundance compared to areas with no cutting. The other study found that densities of eastern Massassauga rattlesnakes were higher after cutting during the first three years, but similar after four years. Condition (1 study): One replicated, randomized, controlled, before-and-after study in Spain found that an adapted brush cutter caused less damage to tortoise carcasses than a conventional brush cutter. BEHAVIOUR (1 STUDIES) Use (2 studies): One replicated, randomized, controlled study in Australia found that after cutting back canopy vegetation, reptiles used unshaded rocks more often than shaded rocks in winter but not spring. One randomized study in the USA found that mown areas were used for nesting by Blanding’s turtles less frequently than tilled areas. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3713https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3713Mon, 13 Dec 2021 14:26:20 +0000Collected Evidence: Collected Evidence: Manage vegetation by hand (selective weeding) Four studies evaluated the effects of managing vegetation by hand on reptile populations. Two studies were in the USA, one was in South Africa and one was in the US Virgin Islands. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (1 study): One replicated, paired sites, controlled, before-and-after study in the USA found that removing invasive, non-native Sahara mustard by hand had mixed effects on the abundance of two lizard species. Reproductive success (1 study): One replicated, randomized, controlled study in the US Virgin Islands found that in areas where native beach morning glory was removed by hand, leatherback turtle nests had similar hatching and emergence success compared to areas where no removal took place. Survival (1 study): One replicated, randomized, controlled study in the US Virgin Islands found that in areas where native beach morning glory was removed by hand, fewer leatherback turtle hatchlings became entangled in vegetation compared to areas where no removal took place. BEHAVIOUR (2 STUDIES) Use (2 studies): One replicated, controlled, before-and-after study in South Africa found that removing an invasive plant by hand resulted in more sites being used for nesting by Nile crocodiles compared to areas with no removal. One randomized study in the USA found that weeded or mown areas were used less frequently for nesting by Blanding’s turtles than tilled areas. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3714https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3714Mon, 13 Dec 2021 14:53:37 +0000Collected Evidence: Collected Evidence: Manage natural waterbodies in arid areas to prevent desiccation We found no studies that evaluated the effects on butterflies and moths of managing natural waterbodies in arid areas to prevent desiccation. ‘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%2F3858https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3858Tue, 05 Jul 2022 15:30:22 +0100Collected Evidence: Collected Evidence: Manage perennial bioenergy crops to benefit butterflies and moths One study evaluated the effects on butterflies and moths of managing perennial bioenergy crops to benefit butterflies and moths. This study was in the USA. COMMUNITY RESPONSE (1 STUDY) Richness/diversity (1 study): One replicated, controlled study in the USA found that plots planted with a diverse mix of bioenergy crops had a greater species richness of butterflies than plots planted with fewer species. POPULATION RESPONSE (1 STUDY) Abundance (1 study): One replicated, controlled study in the USA found that plots planted with a diverse mix of bioenergy crops had a higher abundance of butterflies than plots planted with fewer species. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3918https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3918Thu, 11 Aug 2022 11:12:26 +0100Collected Evidence: Collected Evidence: Manage vineyards to benefit butterflies and moths Two studies evaluated the effects on butterflies and moths of managing vineyards to benefit butterflies and moths. One study was in each of the USA and Spain. COMMUNITY RESPONSE (2 STUDIES) Richness/diversity (2 studies): One of two replicated, site comparison studies (including one paired study) in the USA and Spain found that grass strips between vine rows had a greater species richness of butterflies than the vine rows themselves, and vineyards managed with fewer chemicals had a greater species richness of butterflies than conventionally managed vineyards. The other study found that vineyards managed to encourage native plants, and where insecticide was rarely used, had a similar species richness of butterflies to conventionally managed vineyards. POPULATION RESPONSE (1 STUDY) Abundance (1 study): One replicated, paired, site comparison study in the USA found that vineyards managed to encourage native plants, and where insecticide was rarely used, had a greater abundance of butterflies than conventionally managed vineyards. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3919https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3919Thu, 11 Aug 2022 11:19:09 +0100Collected Evidence: Collected Evidence: Manage rice field banks to benefit butterflies and moths One study evaluated the effects on butterflies and moths of managing rice field banks to benefit butterflies and moths. This study was in Italy. COMMUNITY RESPONSE (1 STUDY) Richness/diversity (1 study): One replicated, site comparison study in Italy found that unmown, herbicide-free rice field banks had a greater species richness of butterflies than banks which were mown or sprayed with herbicide. POPULATION RESPONSE (1 STUDY) Abundance (1 study): One replicated, site comparison study in Italy found that unmown, herbicide-free rice field banks had a higher abundance of butterflies, including large copper, than banks which were mown or sprayed with herbicide. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3928https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F3928Thu, 11 Aug 2022 17:33:27 +0100
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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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