Collected Evidence: Collected Evidence: Prohibit or restrict hunting of a species Five studies evaluated the effects of prohibiting or restricting hunting of a mammal species. One study each was in Norway, the USA, South Africa, Poland and Zimbabwe. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (5 STUDIES) Abundance (2 studies): Two studies (including one before-and-after study), in the USA and Poland, found that prohibiting hunting led to population increases of tule elk and wolves. Survival (3 studies): A before-and-after study in Norway found that restricting or prohibiting hunting did not alter the number of brown bears killed. A study in Zimbabwe reported that banning the hunting, possession and trade of Temminck’s ground pangolins did not eliminate hunting of the species. A before-and-after study in South Africa found that increasing legal protection of leopards, along with reducing human-leopard conflict by promoting improved animal husbandry, was associated with increased survival. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2597https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2597Thu, 11 Jun 2020 15:05:02 +0100Collected Evidence: Collected Evidence: Ban private ownership of hunted mammals One study evaluated the effects of banning private ownership of hunted mammals. This study was in Sweden. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Survival (1 study): A before-and-after study in Sweden found that fewer brown bears were reported killed after the banning of private ownership of hunted bears. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2602https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2602Thu, 11 Jun 2020 15:34:18 +0100Collected Evidence: Collected Evidence: Site management for target mammal species carried out by field sport practitioners One study evaluated the effects of site management for a target mammal species being carried out by field sport practitioners. This study was in Ireland. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A replicated, site comparison study in the Republic of Ireland found that sites managed for the sport of coursing Irish hares held more of this species than did the wider countryside. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2605https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2605Thu, 11 Jun 2020 15:49:34 +0100Collected Evidence: Collected Evidence: Set hunting quotas based on target species population trends Three studies evaluated the effects of setting hunting quotas for mammals based on target species population trends. One study each was in Canada, Spain and Norway. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (2 studies): Two studies, in Spain and Norway, found that restricting hunting and basing quotas on population targets enabled population increases for Pyrenean chamois and Eurasian lynx. Survival (1 study): A before-and-after study in Canada found that setting harvest quotas based on population trends, and lengthening the hunting season, did not decrease the number of cougars killed by hunters. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2607https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2607Thu, 11 Jun 2020 16:07:49 +0100Collected Evidence: Collected Evidence: Prohibit or restrict hunting of particular sex/ breeding status/age animals Two studies evaluated the effects of prohibiting or restricting hunting of particular sex, breeding status or age animals. Both studies were in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Reproduction (2 studies): Two replicated, before-and-after studies, in the USA, found that limiting hunting of male deer did not increase the numbers of young deer/adult female. Population structure (1 study): A replicated, before-and-after study in the USA found that limiting hunting of older male elk resulted in an increased ratio of male:female elk. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2609https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2609Thu, 11 Jun 2020 16:29:44 +0100Collected Evidence: Collected Evidence: Incentivise species protection through licensed trophy hunting One study evaluated the effects on mammals of incentivising species protection through licensed trophy hunting. This study was in Nepal. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A study in Nepal found that after trophy hunting started, bharal abundance increased, though the sex ratio of this species, and of Himalayan tahr, became skewed towards females. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2610https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2610Thu, 11 Jun 2020 16:42:28 +0100Collected Evidence: Collected Evidence: Use selective trapping methods in hunting activities We found no studies that evaluated the effects on non-target mammals of using selective trapping methods in hunting activities. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2611https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2611Thu, 11 Jun 2020 16:44:54 +0100Collected Evidence: Collected Evidence: Use wildlife refuges to reduce hunting impacts Two studies evaluated the effects on mammal species of using wildlife refuges to reduce hunting impacts. One study was in Canada and one was in Mexico. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (2 studies): One of two replicated site comparison studies in Canada and Mexico found more moose in areas with limited hunting than in more heavily hunted areas. The other study found mixed results with only one of five species being more numerous in a non-hunted refuge. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2612https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2612Thu, 11 Jun 2020 17:07:10 +0100Collected Evidence: Collected Evidence: Provide/increase anti-poaching patrols Seven studies evaluated the effects of providing or increasing anti-poaching patrols on mammals. Two studies were in Thailand and one each was in Brazil, Iran, Lao People's Democratic Republic, South Africa and Tajikistan. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (7 STUDIES) Abundance (6 studies): Two studies, in Thailand and Iran, found more deer and small mammals and more urial sheep and Persian leopards close to ranger stations (from which anti-poaching patrols were carried out) than further from them. One of three before-and-after studies, in Brazil, Thailand and Lao People's Democratic Republic, found that ranger patrols increased mammal abundance. The other two studies found that patrols did not increase tiger abundance. A site comparison study in Tajikistan found more snow leopard, argali, and ibex where anti-poaching patrols were conducted. Survival (1 study): A study in South Africa found that anti-poaching patrols did not deter African rhinoceros poaching. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2618https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2618Fri, 12 Jun 2020 09:16:05 +0100Collected Evidence: Collected Evidence: Make introduction of non-native mammals for sporting purposes illegal We found no studies that evaluated the effects on native mammals of making introduction of non-native mammals for sporting purposes illegal. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2621https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2621Fri, 12 Jun 2020 10:47:21 +0100Collected Evidence: Collected Evidence: Commercially breed for the mammal production trade We found no studies that evaluated the effects of commercially breeding mammals for trade on wild populations of those species. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2622https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2622Fri, 12 Jun 2020 10:48:37 +0100Collected Evidence: Collected Evidence: Promote sustainable alternative livelihoods We found no studies that evaluated the effects of promoting sustainable alternative livelihoods on mammals. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2623https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2623Fri, 12 Jun 2020 10:50:30 +0100Collected Evidence: Collected Evidence: Promote mammal-related ecotourism We found no studies that evaluated the effects on mammals of promoting mammal-related ecotourism. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this intervention during our systematic journal and report searches. Therefore, we have no evidence to indicate whether or not the intervention has any desirable or harmful effects.Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2624https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2624Fri, 12 Jun 2020 10:52:50 +0100Collected Evidence: Collected Evidence: Ban exports of hunting trophies One study evaluated the effects of banning exports of hunting trophies on wild mammals. This study was in Cameroon. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A before-and-after study in Cameroon found similar hippopotamus abundances before and after a ban on exporting hippopotamus hunting trophies. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2625https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2625Fri, 12 Jun 2020 10:54:25 +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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