Conservation Evidence: Evidence Data

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%2Fwww.conservationevidence.com%2Factions%2F168https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F168Sun, 20 May 2012 13:05:15 +0100Collected Evidence: Collected Evidence: Take field corners out of managementA replicated study in the UK found that overwinter survival of grey partridge Perdix perdix was higher where field corners were taken out of management than on other sites for one of three winters. There was no relationship with the intervention and brood size, the ratio of young to old birds or density changes. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F198https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F198Wed, 27 Jun 2012 17:57:04 +0100Collected Evidence: Collected Evidence: Sow crops in spring rather than autumn A replicated, controlled, paired sites study from Sweden found more bird species on areas with spring sown cereals, compared with winter cereals. A before-and-after study from the UK found that several species bred in the study site for the first time after the start of spring sowing. Three studies from Sweden and the UK, two replicated and controlled, found population increases after the start of spring sowing, or higher populations on sites with spring-sown cereals, compared to sites with winter cereals. A before-and-after study from the UK found that ten species did not increase after spring sowing began. No species decreased. A replicated, controlled paired sites study from Sweden found that the benefits of spring-sowing decreased with the proportion of autumn-sown crops in the surrounding area. A replicated, controlled study from Sweden found that hatching success was lower on spring-sown crops than autumn sown. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F207https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F207Sun, 15 Jul 2012 17:16:58 +0100Collected Evidence: Collected Evidence: Translocate birds away from fish farmsA study from the USA cited in a review found that translocating birds away from a fish farm appeared to reduce the number of birds at the farm. A study from Belgium found that translocating herons did not seem to be an effective way to reduce bird numbers at fish farms. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F251https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F251Wed, 18 Jul 2012 12:15:27 +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%2Fwww.conservationevidence.com%2Factions%2F255https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F255Wed, 18 Jul 2012 12:57:49 +0100Collected Evidence: Collected Evidence: Sowing roadside verges We captured no evidence for the effects of sowing roadside verges 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%2F260https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F260Thu, 19 Jul 2012 13:21:32 +0100Collected Evidence: Collected Evidence: Scare or otherwise deter birds from airports Two replicated studies in the UK and USA found that fewer birds (mainly gulls Larus spp.) used areas of long grass at airports. However, no data were provided on the effect of long grass on strike rates or mortality of birds. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F261https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F261Thu, 19 Jul 2012 13:26:20 +0100Collected Evidence: Collected Evidence: Thicken earth wire to reduce incidental bird mortalityA literature review found no evidence that thickening the earth wire had any impact on collision mortality of cranes Grus spp. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F264https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F264Thu, 19 Jul 2012 13:48:14 +0100Collected Evidence: Collected Evidence: Set longlines at night to reduce seabird bycatch Six out of eight studies from fisheries around the world found lower rates of seabird bycatch on longlines set at night, compared with during the day, or with previously collected data. However, effects seemed to depend on the species caught. Two studies found higher rates of bycatch on night-set longlines, due to high numbers of white-chinned petrels Procellaria aequinoctialis or northern fulmars Fulmarus glacialis being caught at night. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F283https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F283Tue, 24 Jul 2012 13:04:04 +0100Collected Evidence: Collected Evidence: Set lines underwater to reduce seabird bycatch Four replicated and controlled studies and a literature review in Norway, South Africa and the North Pacific found reductions in northern fulmar Fulmarus glacialis, albatross and petrel bycatch rates when using an underwater setting funnel. Although one found a disproportionate number of albatross were caught during day line setting. A replicated and controlled study found that underwater setting increased attack rates of shearwaters Puffinus spp. on longlines and did not reduce bycatch. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F288https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F288Tue, 24 Jul 2012 16:38:44 +0100Collected Evidence: Collected Evidence: Set longlines at the side of the boat to reduce seabird bycatch We found no evidence for the effects on seabird bycatch rates of setting longlines from the side of the boat. '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%2F289https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F289Tue, 24 Jul 2012 16:44:03 +0100Collected Evidence: Collected Evidence: Tow buoys behind longlining boats to reduce seabird bycatch We found no evidence for the effects on seabird bycatch rates of towing buoys behind longlining boats. '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%2F292https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F292Tue, 24 Jul 2012 16:54:34 +0100Collected Evidence: Collected Evidence: Thaw bait before setting lines to reduce seabird bycatchA single study from Australia found that lines set using thawed baits caught significantly fewer seabirds than controls. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F298https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F298Tue, 24 Jul 2012 17:24:13 +0100Collected Evidence: Collected Evidence: Set minimum distances for approaching birds (buffer zones) We captured no evidence for the effects on bird populations of setting minimum distances for approaching birds. '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%2F310https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F310Wed, 25 Jul 2012 17:15:32 +0100Collected Evidence: Collected Evidence: Start educational programmes for personal watercraft ownersA before-and-after trial in the USA found that rates of disturbance by personal watercraft decreased and reproductive success of common terns Sterna hirundo increased following a series of educational programmes aimed at recreational boat users. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F314https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F314Wed, 25 Jul 2012 18:11:40 +0100Collected Evidence: Collected Evidence: Thin trees within forests Of 13 studies, one from the USA which used several interventions found higher species richness in managed sites. Three studies from the USA and the UK found no differences between thinned and control sites. Seven studies from the USA and Sweden found that total bird abundance, or that of some species, were higher in thinned plots than control plots or those under different management. Four of these used other interventions as well. Five studies found that abundances were similar, or that some species were less abundant in areas with thinning. Two studies from the USA found no effect of thinning on wood thrushes, a species thought to be sensitive to it. A controlled before-and-after study found that more nests were in nest boxes in a thinned site, compared to a control site. A replicated randomised, controlled study in the USA found no differences in bird abundances between burned sites with high-retention thinning, compared to low-retention. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F328https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F328Thu, 26 Jul 2012 17:16:33 +0100Collected Evidence: Collected Evidence: Shield lights to reduce mortality from artificial lightsA replicated, controlled study in Hawaii found that fewer Newell’s shearwaters Puffinus newelli were found grounded when security lights were shielded, compared to nights when they were not. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F469https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F469Wed, 29 Aug 2012 16:27:35 +0100Collected Evidence: Collected Evidence: Translocate individualsA review of 239 bird translocation programmes found 63–67% resulted in establishment of self-sustaining populations. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F566https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F566Sun, 30 Sep 2012 12:46:30 +0100Collected Evidence: Collected Evidence: Translocate megapodesA replicated study from Indonesia found that up to 78% of maleo Macrocephalon maleo eggs hatched after translocation, with higher success if eggs were reburied as they were found. There was only anecdotal evidence that the translocations increased local populations. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F567https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F567Sun, 30 Sep 2012 12:49:00 +0100Collected Evidence: Collected Evidence: Translocate auksA replicated study in the USA and Canada found that 20% of 774 translocated Atlantic puffins Fratercula arctica remained in or near the release site, with up to 7% breeding. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F570https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F570Sun, 30 Sep 2012 13:02:20 +0100Collected Evidence: Collected Evidence: Translocate gamebirds Three studies from the USA found that translocation of gamebirds resulted in population establishment or growth, or an increase in lekking sites. Four studies from the USA found high survival of translocated birds, although one, from Alaska found that translocated birds had high initial mortality, which then fell to levels close to those in resident birds. Two studies from the USA found high mortality in translocated birds. Four studies from the USA found breeding rates that were high, or similar to resident birds, amongst translocated birds. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F572https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F572Sun, 30 Sep 2012 13:50:44 +0100Collected Evidence: Collected Evidence: Translocate herons, storks and ibisesA before-and-after study in the USA found that a colony of black-crowned night herons Nycticorax nycticorax was successfully moved, with the new colony producing chicks the year after translocation. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F575https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F575Sun, 30 Sep 2012 14:25:50 +0100Collected Evidence: Collected Evidence: Translocate owls A small study from New Zealand found that translocating two male boobook Ninox novaeseelandiae novaeseelandiae allowed the establishment of a small population, when they interbred with the last remaining Norfolk Island boobook N. n. undulata A replicated study in the USA found high survival amongst burrowing owls Athene cunicularia translocated as juveniles, although no breeding was recorded and all birds left the release site and were not seen again. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F576https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F576Sun, 30 Sep 2012 14:32:21 +0100Collected Evidence: Collected Evidence: Translocate parrots Three studies of two translocation programmes from the Pacific and New Zealand found that populations of parrots were successfully established on islands following translocations, including the colonisation of other islands in the New Zealand study. Survival of translocated birds was monitored in five studies of four programmes from across the world and ranged from 41% over 60 days for red-fronted parakeets Cyanoramphus novaezelandiae in New Zealand to 98% for kakapos Strigops habroptila in New Zealand. Survival for translocated thick-billed parrots Rhynchopsitta pachyrhyncha in the USA was higher than for captive-bred birds. Despite very high survival, kakapos that were translocated had very low reproductive output in New Zealand. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F578https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F578Sun, 30 Sep 2012 14:41:44 +0100Collected Evidence: Collected Evidence: Translocate nests to avoid disturbance Four small trials from the USA and a replicated study from Chatham Island, New Zealand found some success in relocating nests whilst they were in use. However, one study from the USA found that only 40% of burrowing owls Athene cunicularia were moved successfully, another found that American kestrels Falco sparverius tolerated movement of their nest, but not repeated disturbance and another found that barn swallow Hirundo rustica may follow their nest as it is slowly moved on a car, but may not stay at the new site. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F584https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F584Sat, 06 Oct 2012 21:27:21 +0100