Collected Evidence: Collected Evidence: Support or maintain low-intensity agricultural systems We captured no evidence for the effects of supporting low-intensity agricultural systems 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%2Fconservationevidencejournal.com%2Factions%2F168https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F168Sun, 20 May 2012 13:05:15 +0100Collected Evidence: Collected Evidence: Practice integrated farm management We found no intervention-based evidence on the effects of practicing integrated farm management 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%2Fconservationevidencejournal.com%2Factions%2F169https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F169Sun, 20 May 2012 13:06:40 +0100Collected Evidence: Collected Evidence: Food labelling schemes relating to biodiversity-friendly farming We captured no evidence for the effects of food labelling schemes 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%2Fconservationevidencejournal.com%2Factions%2F170https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F170Sun, 20 May 2012 13:07:59 +0100Collected Evidence: Collected Evidence: Cross compliance standards for all subsidy paymentsApart from the Swiss Ecological Compensation Areas scheme (considered in another section), we found no studies comparing the effects of cross compliance standards with other means of implementing agri-environmental measures, or that considered the effects of cross compliance by monitoring farmland bird populations before and after it was implemented.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F173https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F173Sun, 27 May 2012 14:49:45 +0100Collected Evidence: Collected Evidence: Reduce field size (or maintain small fields) We found no intervention-based evidence on the effects of reducing field sizes 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%2Fconservationevidencejournal.com%2Factions%2F174https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F174Sun, 27 May 2012 14:51:15 +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%2Fconservationevidencejournal.com%2Factions%2F179https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F179Wed, 30 May 2012 14:13:00 +0100Collected Evidence: Collected Evidence: Protect in-field trees We found no evidence for the effects of protecting in-field trees 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%2Fconservationevidencejournal.com%2Factions%2F184https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F184Sun, 10 Jun 2012 12:59:35 +0100Collected Evidence: Collected Evidence: Plant in-field trees We found no evidence for the effects of planting in-field trees 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%2Fconservationevidencejournal.com%2Factions%2F185https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F185Sun, 10 Jun 2012 13:00:27 +0100Collected Evidence: Collected Evidence: Tree pollarding and tree surgery We found no evidence for the effects of tree pollarding and tree surgery 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%2Fconservationevidencejournal.com%2Factions%2F186https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F186Sun, 10 Jun 2012 13:01:16 +0100Collected Evidence: Collected Evidence: Plant nettle strips We found no evidence for the effects of planting nettle strips 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%2Fconservationevidencejournal.com%2Factions%2F205https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F205Sun, 15 Jul 2012 17:08:57 +0100Collected Evidence: Collected Evidence: Leave unharvested cereal headlands within arable fields We found no evidence for the effects of leaving unharvested cereal headlands within arable fields 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%2Fconservationevidencejournal.com%2Factions%2F206https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F206Sun, 15 Jul 2012 17:11:46 +0100Collected Evidence: Collected Evidence: Use 1% barley in wheat crops for corn buntingsWe have found no studies investigating the impact of adding barley to wheat on corn bunting Miliaria calandra populations.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F212https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F212Mon, 16 Jul 2012 17:48:08 +0100Collected Evidence: Collected Evidence: Create corn bunting plots We have found no evidence investigating the impact of corn bunting plots on corn bunting Miliaria calandra or other 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%2Fconservationevidencejournal.com%2Factions%2F215https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F215Tue, 17 Jul 2012 11:53:54 +0100Collected Evidence: Collected Evidence: Plant cereals in wide-spaced rows A replicated and controlled study from the UK found that planting cereals in wide-spaced rows “offered benefits over conventional wheat for Eurasian skylarks, but details were not given. Another replicated and controlled study from the UK found that fields with wide-spaced rows had fewer skylark nests than control or skylark plot fields. A replicated and controlled study from the UK found that the faecal content (and therefore diet) of skylark nestlings was similar between control fields and those with wide-spaced rows.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F216https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F216Tue, 17 Jul 2012 11:58:51 +0100Collected Evidence: Collected Evidence: Maintain lowland heathland We found no intervention-based evidence on the effects of maintaining lowland heath 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%2Fconservationevidencejournal.com%2Factions%2F226https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F226Tue, 17 Jul 2012 15:31:29 +0100Collected Evidence: Collected Evidence: Maintain rush pastures We found no intervention-based evidence on the effects of maintaining rush pastures 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%2Fconservationevidencejournal.com%2Factions%2F227https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F227Tue, 17 Jul 2012 15:32:25 +0100Collected Evidence: Collected Evidence: Use traditional breeds of livestockA replicated controlled study in four European countries found no differences in bird abundances between areas grazed with traditional or commercial breeds of livestock.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F233https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F233Tue, 17 Jul 2012 15:53:48 +0100Collected Evidence: Collected Evidence: Mark fences to reduce bird collision mortalityA randomised, replicated and controlled study from the UK found that fewer birds collided with deer fence marked with orange netting than with unmarked sections.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F238https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F238Wed, 18 Jul 2012 10:34:56 +0100Collected Evidence: Collected Evidence: Create open patches or strips in permanent grasslandA randomised, replicated and controlled study from the UK found that more Eurasian skylarks used fields with open strips in, but that variations in skylark numbers were too great to draw conclusions from this finding.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F239https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F239Wed, 18 Jul 2012 10:38:39 +0100Collected Evidence: Collected Evidence: Use ‘mussel socks’ to prevent birds from attacking shellfishA randomised, replicated controlled experiment in Canada found that fewer medium-sized mussels were taken from mussel socks with a protective ‘sleeve’, compared to un-sleeved socks. There were no differences for small or large mussels.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F250https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F250Wed, 18 Jul 2012 12:11:31 +0100Collected Evidence: Collected Evidence: Increase water turbidity to reduce fish predation by birdsA randomised trial in France found that little egret Egretta garzetta foraging efficiency was lower in turbid water than clear.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F252https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F252Wed, 18 Jul 2012 12:45:59 +0100Collected Evidence: Collected Evidence: Provide refuges for fish within pondsA controlled cross-over trial in the UK found that great cormorant Phalacrocorax carbo foraging success was lower in a pond with artificial refuges, compared to a control pond.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F253https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F253Wed, 18 Jul 2012 12:49:06 +0100Collected Evidence: Collected Evidence: Spray water to deter birds from pondsA replicated study from Sweden found that a rotating water spray deterred birds from fish ponds, but that birds often became used to the spray.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F255https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F255Wed, 18 Jul 2012 12:57:49 +0100Collected Evidence: Collected Evidence: Deter birds from landing on shellfish culture gear using spikes on oyster cagesA replicated and controlled study from Canada found that significantly fewer birds landed on oyster cages with spikes attached, compared to control cages.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F256https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F256Wed, 18 Jul 2012 13:00:33 +0100Collected Evidence: Collected Evidence: Deter birds from landing on shellfish culture gear by suspending oyster bags under waterA replicated and controlled study from Canada found that significantly fewer birds roosted on oyster bags suspended 6 cm below the water, compared with non-submerged bags. Birds roosted on bags suspended 3 cm below the water as frequently as control bags.  Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F257https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F257Wed, 18 Jul 2012 13:31:25 +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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