Collected Evidence: Collected Evidence: Relocate primates to non-residential areas We found no evidence for the effects of relocating primates to non-residential areas on primate 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%2F1423https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1423Tue, 17 Oct 2017 09:26:18 +0100Collected Evidence: Collected Evidence: Discourage the planting of fruit trees and vegetable gardens on the urban edge We found no evidence for the effects of discouraging the planting of fruit trees and vegetable gardens on the urban edge on primate 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%2F1424https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1424Tue, 17 Oct 2017 09:27:59 +0100Collected Evidence: Collected Evidence: Create natural habitat islands within agricultural land We found no evidence for the effects of creating natural habitat islands within agricultural land on primate 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%2F1425https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1425Tue, 17 Oct 2017 09:30:25 +0100Collected Evidence: Collected Evidence: Use fences as biological corridors for primates We found no evidence for the effects of using fences as biological corridors on primate 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%2F1426https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1426Tue, 17 Oct 2017 09:31:52 +0100Collected Evidence: Collected Evidence: Provide sacrificial rows of crops on outer side of fields We found no evidence for the effects of providing sacrificial rows of crops on the outer side of fields on primate 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%2F1427https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1427Tue, 17 Oct 2017 09:48:21 +0100Collected Evidence: Collected Evidence: Compensate farmers for produce loss caused by primates We found no evidence for the effects of compensating farmers for produce loss caused by primates on primate 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%2F1428https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1428Tue, 17 Oct 2017 09:49:47 +0100Collected Evidence: Collected Evidence: Pay farmers to cover the costs of non-harmful strategies to deter primates We found no evidence for the effects of paying farmers to cover the costs of non-harmful strategies to deter primates on primate 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%2F1429https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1429Tue, 17 Oct 2017 09:51:35 +0100Collected Evidence: Collected Evidence: Retain nesting trees/shelter for primates within agricultural fields We found no evidence for the effects of retaining nesting trees/shelter for primates within agricultural fields on primate 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%2F1430https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1430Tue, 17 Oct 2017 09:53:02 +0100Collected Evidence: Collected Evidence: Plant nesting trees/shelter for primates within agricultural fields We found no evidence for the effects of planting nesting trees/shelter for primates within agricultural fields on primate 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%2F1431https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1431Tue, 17 Oct 2017 09:54:24 +0100Collected Evidence: Collected Evidence: Use nets to keep primates out of fruit trees One controlled, replicated, before-and-after study in Indonesia found that areas where nets were used to protect crop trees, crop-raiding by orangutans was reduced. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1442https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1442Tue, 17 Oct 2017 11:16:03 +0100Collected Evidence: Collected Evidence: Strengthen/support/re-install traditions/taboos that forbid the killing of primates One site comparison in Laos found that Laotian black crested gibbons occurred at higher densities in areas where they were protected by a local hunting taboo than at sites were there was no taboo. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1479https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1479Tue, 17 Oct 2017 18:52:43 +0100Collected Evidence: Collected Evidence: Implement monitoring surveillance strategies (e.g. SMART) or use monitoring data to improve effectiveness of wildlife law enforcement patrols One before-and-after study in Nigeria found that more gorillas and chimpanzees were observed after the implementation of law enforcement and a monitoring system. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1481https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1481Tue, 17 Oct 2017 19:05:51 +0100Collected Evidence: Collected Evidence: Avoid/minimize logging of important food tree species for primates One before-and-after study in Belize found that a black howler monkey population increased over 13 years after trees important for food for the species were preserved, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1494https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1494Tue, 17 Oct 2017 19:45:17 +0100Collected Evidence: Collected Evidence: Implement a ‘no-feeding of wild primates’ policy One controlled, before-and-after study in Japan found that several previously increasing Japanese macaque populations declined in size and productivity after limiting and then prohibiting food provisioning. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1502https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1502Tue, 17 Oct 2017 19:59:26 +0100Collected Evidence: Collected Evidence: Put up signs to warn people about not feeding primates One review in Japan found that aggressive interactions between Japanese macaques and humans declined after prohibiting tourists from feeding of monkeys. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1507https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1507Wed, 18 Oct 2017 14:47:59 +0100Collected Evidence: Collected Evidence: Guard habituated primate groups to ensure their safety/well-being A controlled, before-and-after study in Rwanda, Uganda, and the Democratic Republic of Congo found that a population of mountain gorillas increased over 41 years after being guarded against poachers, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1523https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1523Thu, 19 Oct 2017 09:34:22 +0100Collected Evidence: Collected Evidence: Regularly disinfect clothes, boots etc. One controlled, before-and-after study in Rwanda, Uganda and Congo found that numbers of mountain gorillas increased by 168% over 41 years while being visited by researchers and tourists whose clothes were disinfected, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1547https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1547Thu, 19 Oct 2017 17:33:18 +0100Collected Evidence: Collected Evidence: Implement continuous health monitoring with permanent vet on site One controlled, before-and-after study in Rwanda, Uganda and the Democratic Republic of Congo found that the population size of mountain gorillas that were continuously monitored by vets, alongside other interventions, increased by 168% over 41 years. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1554https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1554Thu, 19 Oct 2017 20:53:44 +0100Collected Evidence: Collected Evidence: Translocate (capture & release) wild primates from abundant population areas to non-inhabited environments One replicated study in Belize found that the majority of black howler monkeys survived for at least 10 months after translocation from abundant population areas to an uninhabited site, along with other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1559https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1559Fri, 20 Oct 2017 10:01:20 +0100Collected Evidence: Collected Evidence: Educate local communities about primates and sustainable use One before-and-after study in Cameroon found that numbers of drills increased after the implementation of an education programme, alongside one other intervention. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1563https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1563Fri, 20 Oct 2017 10:07:49 +0100Collected Evidence: Collected Evidence: Regularly play TV & radio announcements to raise primate conservation awareness One before-and-after study in the Republic of Congo found that most reintroduced central chimpanzees whose release was broadcasted by multiple media means, alongside other interventions, survived over five years post-reintroduction. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1569https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1569Fri, 20 Oct 2017 11:42:52 +0100Collected Evidence: Collected Evidence: Create/protect habitat corridors One before-and-after study in Belize found that black howler monkey numbers increased by 138% over 13 years after the protection of a forest corridor, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1580https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1580Fri, 20 Oct 2017 12:58:51 +0100Collected Evidence: Collected Evidence: Create/protect forest patches in highly fragmented landscapes One before-and-after study in Belize found that black howler monkey numbers increased by 138% over 13 years after the protection of forest along property boundaries and across cleared areas, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1581https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1581Fri, 20 Oct 2017 13:01:33 +0100Collected Evidence: Collected Evidence: Plant indigenous trees to re-establish natural tree communities in clear-cut areas One site comparison study in Kenya found that two out of three primate species had lower group densities in planted forests than in natural forests. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1584https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1584Fri, 20 Oct 2017 13:07:25 +0100Collected Evidence: Collected Evidence: Reintroduce primates into habitat without predators One study in Tanzania found that a population of reintroduced chimpanzees increased over 16 years following reintroduction into habitat without predators. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1592https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1592Fri, 20 Oct 2017 14:15:01 +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.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust
For a full list of, and information about, our champions:
All Evidence Champions
About our champions, why and how to become one:
Become an Evidence Champion

This website uses Cookies

We use limited Cookies to run the site and to analyse our traffic (none for site vendors). By using this site, you will be providing your consent to our use of Cookies.

Accept & continue