Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Maintain traditional farm buildings We have captured no evidence for the effects of maintaining traditional farm buildings 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%2F94https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F94Mon, 24 Oct 2011 21:37:12 +0100Collected Evidence: Collected Evidence: Provide bat boxes, bat grilles, improvements to roosts We have captured no evidence for the effects of providing bat boxes, bat grilles or improvements to roosts 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%2F95https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F95Mon, 24 Oct 2011 21:39:48 +0100Collected Evidence: Collected Evidence: Provide owl nest boxes (Tawny owl, Barn owl) Two studies from the UK (a before-and-after study and a controlled study) found that the provision of owl nest boxes in farm buildings maintained barn owl nesting and roosting activity and resulted in an increase in population density. A study from the Netherlands found that the barn owl population increased with increased availability of nest boxes. A replicated, controlled study in Hungary found that juvenile barn owls fledged from nest boxes were significantly less likely to be recovered alive than those reared in church towers. A replicated study from the UK investigating barn owl nest site use, found that the number of occupied nest sites and the proportion breeding decreased from 2001 to 2009, but were unaffected by the number of boxes. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F154https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F154Sat, 14 Jan 2012 15:38:54 +0000