Collected Evidence: Collected Evidence: Provide woody debris in ski run area One study evaluated the effects on mammals of providing woody debris in ski run areas. This study was in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A controlled study in the USA found that placing woody debris on ski slopes did not affect overall small mammal abundance and had mixed effects on individual species abundances. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2356https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2356Tue, 26 May 2020 13:30:50 +0100Collected Evidence: Collected Evidence: Hand-rear orphaned or abandoned young in captivity Six studies evaluated the effects of hand-rearing orphaned mammals. Two were in the USA, one each was in Australia, South Africa and India and one was in six countries across North America, Europe and Asia. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (5 STUDIES) Reproductive success (1 study): One study in India found that three hand-reared orphaned or abandoned greater one-horned rhinoceroses gave birth in the wild. Survival (5 studies): Five studies (including one controlled and one replicated) in Australia, the USA, India and in six countries across North America, Europe and Asia, found that some hand-reared orphaned or abandoned ringtail possums, white-tailed deer, sea otters, bears and greater one-horned rhinoceroses survived for periods of time after release. BEHAVIOUR (1 STUDY) Behaviour change (1 study): A study in South Africa found that a hand-reared, orphaned serval established a home range upon release. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2358https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2358Tue, 26 May 2020 14:14:17 +0100Collected Evidence: Collected Evidence: Establish wild flower areas on farmland Four studies evaluated the effects of establishing wild flower areas on farmland on small mammals. Two studies were in Switzerland, one in the UK and one in Germany. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (4 STUDIES) Abundance (4 studies): Three of four site comparison studies (including three replicated studies), in Switzerland, the UK and Germany, found that sown wildflower areas contained more wood mice, small mammals and common hamsters compared to grass and clover set-aside, grasslands, crop and uncultivated margins, agricultural areas and crop fields. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2359https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2359Tue, 26 May 2020 14:55:47 +0100Collected Evidence: Collected Evidence: Place orphaned or abandoned wild young with captive foster parents Two studies evaluated the effects of placing orphaned or abandoned wild young with captive foster parents. One study was in Canada and one was in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Survival (1 study): A controlled study in the USA found that stranded sea otter pups reared in captivity by foster mothers had higher post-release survival than did unfostered pups reared mostly alone, and similar survival to wild pups. BEHAVIOUR (2 STUDIES) Behaviour change (2 studies): A study in Canada found that a captive white-tailed deer adopted a wild orphaned fawn. A controlled study in the USA found that stranded sea otter pups reared in captivity by foster mothers began foraging earlier than did unfostered pups reared mostly alone.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2364https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2364Tue, 26 May 2020 15:47:22 +0100Collected Evidence: Collected Evidence: Create uncultivated margins around intensive arable or pasture fields Nine studies evaluated the effect of creating uncultivated margins around intensive arable, cropped grass or pasture fields on mammals. Six studies were in the UK, two were in Switzerland and one was in the USA. COMMUNITY RESPONSE (1 STUDY) Richness/diversity (1 study): One replicated, controlled study in the UK found more small mammal species in uncultivated field margins than in blocks of set-aside. POPULATION RESPONSE (9 STUDIES) Abundance (9 studies): One replicated, randomized, controlled study in the USA found more small mammals in uncultivated and unmown field margins than in frequently mown margins. Three of seven replicated, site comparison studies (one randomized), in the UK and Switzerland, found that uncultivated field margins had higher numbers of small mammals, bank voles and brown hares relative to crops (including grassland) and set-aside. The other four studies reported mixed or no effects on bank voles, wood mice and common shrews, small mammals and brown hares. One site comparison study in the UK found that brown hares used grassy field margins more than expected based on their availability. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2365https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2365Tue, 26 May 2020 15:55:26 +0100Collected Evidence: Collected Evidence: Provide supplementary food to increase reproduction/survival Twenty-four studies evaluated the effects on mammals of providing supplementary food to increase reproduction/survival. Nine studies were in the USA, two were in Canada, two were in South Africa, two were in Poland, and one each was in Sweden, the Netherlands, eSwatini, Spain, Portugal, Slovenia, Austria, Norway and Sweden and one was across North America and Europe. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (18 STUDIES) Abundance (8 studies): Four of eight studies (incuding four controlled, two site comparisons and five before-and-after studies) in the USA, Canada, South Africa, Poland and Austria found that supplementary feeding increased the abundance or density of bank voles, red squirrels, striped mice, brown hyena and black-backed jackals. One study found a temporary increased in prairie vole abundance. The other three studies found supplementary feeding not to increase abundance or density of white-footed mice, northern flying squirrels, Douglas squirrels or Eurasian otters. Reproduction (8 studies): Four of five controlled studies (three also replicated) in the USA, South Africa, Norway and Sweden, Sweden and Spain, found that supplementary food increased the proportion of striped mice that were breeding, the number of arctic fox litters and the size of prairie vole litters. However, there was no increase in the number of arctic fox cubs in each litter or the proportion of female Iberian lynx breeding. One of two replicated studies (one site comparison and one controlled), in the Netherlands and the USA, found that supplementary feeding increased the number of young wild boar produced and recruited in to the population. The other study found that the number of mule deer produced/adult female did not increase. A review of studies across North America and Europe found that supplementary feeding increased ungulate reproductive rates in five of eight relevant studies. Survival (9 studies): Four of eight studies (including seven controlled studies and two before-and-after studies) in the USA, Canada, Poland and Spain, found that supplementary feeding increased survival of mule deer, bank voles, northern flying squirrels and eastern cottontail rabbits. Five studies found no increase in survival for white-tailed deer, Douglas squirrels, mule deer, Rocky Mountain bighorn sheep lambs or Iberian lynx. A review of studies across North America and Europe found that supplementary feeding increased ungulate survival in four out of seven relevant studies. Condition (4 studies): One of three studies (including two controlled and two before-and-after studies) in Poland, the USA, and Canada, found that supplementary food lead to weight gain or weight recovery in bank voles. One study found no body mass increase with supplementary feeding in northern flying squirrels and Douglas squirrels. The third study found mixed results, with supplementary feeding increasing weight gains in some cotton rats, depending on their sex, weight and the time of year. A review of studies from across North America and Europe found that different proportions of studies found supplementary feeding to improve a range of measures of ungulate condition. BEHAVIOUR (6 STUDIES) Use (2 studies): A replicated, controlled study in Sweden found that supplementary food increased occupancy of Arctic fox dens. A replicated study in Portugal found that artificial feeding stations were used by European rabbits. Behaviour (4 studies): Two of three replicated studies (two also controlled), in eSwatini, Slovenia and the USA, found that supplementary feeding led to reduced home range sizes or shorter movements of red deer and elk. The third study found home ranges and movement distances to be similar between fed and unfed multimammate mice. One replicated study in Poland found that supplementary feeding of ungulates altered brown bear behaviour. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2367https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2367Tue, 26 May 2020 16:24:30 +0100Collected Evidence: Collected Evidence: Provide or retain set-aside areas on farmland Four studies evaluated the effects on mammals of providing or retaining set-aside areas on farmland. Three studies were in the UK and one was in Switzerland. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (3 studies): Three replicated studies (including two site comparison studies), in the UK and Switzerland, found that set-aside did not enhance small mammal numbers relative to cropland or to uncultivated field margins and farm woodland, or brown hare numbers relative to numbers on farms without set-aside areas. BEHAVIOUR (1 STUDY) Use (1 study): A before-and-after study in the UK found that use of uncut set-aside areas by wood mice increased after crop harvesting. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2377https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2377Wed, 27 May 2020 08:48:09 +0100Collected Evidence: Collected Evidence: Maintain/restore/create habitat connectivity on farmland We found no studies that evaluated the effects on mammals of maintaining, restoring or creating habitat connectivity on farmland. ‘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%2Fconservationevidencejournal.com%2Factions%2F2381https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2381Wed, 27 May 2020 14:29:56 +0100Collected Evidence: Collected Evidence: Manage hedgerows to benefit wildlife on farmland We found no studies that evaluated the effects on mammals of managing hedgerows to benefit wildlife on farmland. ‘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%2Fconservationevidencejournal.com%2Factions%2F2382https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2382Wed, 27 May 2020 14:33:07 +0100Collected Evidence: Collected Evidence: Plant new or maintain existing hedgerows on farmland Three studies evaluated the effects on mammals of planting new or maintaining existing hedgerows on farmland. Two studies were in the UK and one was in Switzerland. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (3 studies): One of two replicated, site comparison studies, in the UK and Switzerland, found that retaining and enhancing hedgerows along with other field boundary features was associated with higher brown hare density in arable sites but not in grassland sites while the other study found that Irish hare numbers did not increase. A replicated, site comparison study in the UK found that establishing hedgerows alongside arable land increased small mammal abundance. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2383https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2383Wed, 27 May 2020 14:36:44 +0100Collected Evidence: Collected Evidence: Use conditioned taste aversion to reduce human-wildlife conflict in non-residential sites Two studies evaluated the effects on mammals of using conditioned taste aversion to reduce human-wildlife conflict in non-residential sites. Both studies were in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (0 STUDIES) OTHER (2 STUDIES) Human-wildlife conflict (2 studies): Two studies, in the USA, found that lacing foodstuffs with substances that induce illness led to these foods being avoided by coyotes and black bears.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2384https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2384Wed, 27 May 2020 15:03:03 +0100Collected Evidence: Collected Evidence: Use non-lethal methods to deter carnivores from attacking humans Eight studies evaluated the effects of using non-lethal methods to deter carnivores from attacking humans. Three studies were in the USA, two were in Australia, one was in the USA and Canada, one was in Austria and one was in Bangladesh. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Survival (1 study): A study in Bangladesh found that when domestic dogs accompanied people to give advance warning of tiger presence, fewer tigers were killed by people. BEHAVIOUR (0 STUDIES) OTHER (8 STUDIES) Human-wildlife conflict (8 studies): Two studies, in the USA and Canada, found that pepper spray caused all or most American black bears and grizzly bears to flee or cease aggressive behaviour. One of these studies also showed that tear gas repelled half of American black bears. Two studies in the USA and Austria found that grizzly/brown bears were repelled by rubber bullets or by a range of deterrents including rubber bullets, chasing, shouting and throwing items. A study in the USA found that hikers wearing bear bells were less likely to be approached or charged by grizzly bears than were hikers without bells. A replicated, controlled study in Australia found that ultrasonic sound deterrent units did not affect feeding location choices of dingoes. A study in Bangladesh found that domestic dogs accompanying people gave advance warning of tiger presence, enabling people to take precautionary actions. A study in Australia found that a motorised water pistol caused most dingoes to change direction or speed or move ≥5 m away, but sounding a horn did not.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2385https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2385Wed, 27 May 2020 15:41:28 +0100Collected Evidence: Collected Evidence: Plant trees on farmland Four studies evaluated the effects on mammals of planting trees on farmland. Two studies were in the UK, one was in Italy and one was in Australia. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (2 studies): Two replicated studies (including one controlled, and one site comparison study), in the UK, found that farm woodland supported a higher small mammal abundance than on arable land or similar abundance compared to uncultivated field margins and set-aside. BEHAVIOUR (2 STUDIES) Use (2 studies): A study in Italy found that tree stands were used more by European hares compared to the wider farmed landscape. A replicated study in Australia found that trees planted on farmland were used by koalas. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2386https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2386Wed, 27 May 2020 15:47:33 +0100Collected Evidence: Collected Evidence: Pay farmers to cover the costs of conservation measures Three studies evaluated the effects on mammals of paying farmers to cover the costs of conservation measures. The three studies were in the UK. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (3 studies): A replicated, controlled study, in the UK found that agri-environment scheme enrolment was associated with increased brown hare density in one of two regions studied. A replicated, site comparison study in Northern Ireland, UK found that agri-environment scheme enrolment did not increase numbers of Irish hares. A replicated, controlled study in the UK found that in field margins created through enrolment in an agri-environment scheme, small mammal abundance in spring increased, whereas it remained stable in conventionally managed margins. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2387https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2387Thu, 28 May 2020 08:38:14 +0100Collected Evidence: Collected Evidence: Use prescribed burning Thirty-seven studies evaluated the effects on mammals of using prescribed burning. Twenty-five studies were in the USA, three each were in Canada and South Africa, two each were in Spain and Tanzania and one each was in France and Auatralia. COMMUNITY RESPONSE (2 STUDIES) Richness/diversity (2 studies): A replicated, randomized, controlled study in the USA found similar small mammal species richness after prescribed burning compared to in unburned forest. A replicated, site comparison study in Australia found that prescribed burns early in the dry season resulted in higher small mammal species richness relative to wildfires later in the season. POPULATION RESPONSE (16 STUDIES) Abundance (11 studies): Five of 10 replicated studies (of which eight were controlled and two were site comparisons), in the USA, Spain and Australia, found that prescribed burning did not increase abundances of small mammals. Three studies found mixed effects, on cottontail rabbits and small mammals and two found that burning increased numbers of European rabbits and small mammals. A systematic review in the USA found that two mammal species showed positive responses (abundance or reproduction) to prescribed burning while three showed no response. Reproductive success (1 study): A before-and-after, site comparison study in South Africa found that 92% of Cape mountain zebra foals were produced in the three years post-fire compared to 8% in the three years pre-fire. Condition (1 study): A replicated, controlled study, in the USA, found that prescribed burning did not reduce bot fly infestation rates among rodents and cottontail rabbits. Occupancy/range (3 studies): Two of three studies (including two site comparisons and one controlled study), in the USA and Canada, found that prescribed burning resulted in larger areas being occupied by black-tailed prairie dog colonies and smaller individual home ranges of Mexican fox squirrels. The third study found that prescribed burning did not increase occupancy rates of beaver lodges. BEHAVIOUR (22 STUDIES) Use (21 studies): Ten of 21 studies (including eight controlled studies and eight site comparisons with a further four being before-and-after studies), in the USA, Canada, South Africa, Tanzania and France, found that prescribed burning increased use of areas (measured either as time spent in areas or consumption of food resources) by bighorn sheep, mule deer, pronghorn antelope, elk, plains bison, Cape mountain zebrasand mouflon. Six studies found mixed effects, with responses differing among different ages or sexes of white-tailed deer, bison and elk, differing among different large herbivore species or varying over time for elk, while swift foxes denned more but did not hunt more in burned areas. The other five studies showed that prescribed burning did not increase use or herbivory by elk, black-tailed deer, white-tailed deer or mixed species groups of mammalian herbivores. Behaviour change (1 study): A site comparison study in Tanzania found that vigilance of Thomson’s gazelles did not differ between those on burned and unburned areas. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2388https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2388Thu, 28 May 2020 08:57:08 +0100Collected Evidence: Collected Evidence: Provide refuges during crop harvesting or mowing We found no studies that evaluated the effects on mammals of providing refuges during crop harvesting or mowing. ‘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%2Fconservationevidencejournal.com%2Factions%2F2389https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2389Thu, 28 May 2020 09:02:08 +0100Collected Evidence: Collected Evidence: Use repellent on slug pellets to reduce non-target poisoning One study evaluated the effects on mammals of using repellent on slug pellets to reduce non-target poisoning. This study was in the UK. KEY COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (1 STUDY) Use (1 study): A replicated, controlled study in the UK found that, at some concentrations, food treated with a bitter substance was consumed less by wood mice but not by bank voles or common shrews. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2390https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2390Thu, 28 May 2020 09:09:33 +0100Collected Evidence: Collected Evidence: Restrict use of rodent poisons on farmland with high secondary poisoning risk We found no studies that evaluated the effects on mammals of restricting use of rodent poisons on farmland that have secondary poisoning risks. ‘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%2Fconservationevidencejournal.com%2Factions%2F2391https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2391Thu, 28 May 2020 09:34:01 +0100Collected Evidence: Collected Evidence: Increase crop diversity for mammals We found no studies that evaluated the effects on mammals of increasing crop diversity. ‘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%2Fconservationevidencejournal.com%2Factions%2F2392https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2392Thu, 28 May 2020 09:38:17 +0100Collected Evidence: Collected Evidence: Create beetle banks on farmland One study evaluated the effects on mammals of creating beetle banks on farmland. This study was in the UK. KEY COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): One replicated study in the UK found that beetle banks had higher densities of harvest mouse nests than did field margins. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2393https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2393Thu, 28 May 2020 09:40:32 +0100Collected Evidence: Collected Evidence: Plant crops to provide supplementary food for mammals Four studies evaluated the effects on mammals of planting crops to provide supplementary food. Two studies were in the USA, one was in the UK and one was in Spain. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Abundance (3 studies): Two replicated, controlled studies (including one before-and-after study), in the UK and Spain, found that crops grown to provide food for wildlife resulted in a higher abundance of small mammals in winter, but not in summer and increased European rabbit abundance. A replicated, randomized, controlled study in the USA found that triticale (a cross between wheat and rye) held higher overwintering mule deer abundance relative to barley, annual ryegrass, winter wheat or rye. BEHAVIOUR (2 STUDIES) Use (2 studies): A replicated, randomized, controlled study in the USA found that mule deer consumed triticale (a cross between wheat and rye) more than they did barley, annual ryegrass, winter wheat or rye. A replicated, randomized, controlled study in the USA found that supplementary food provided for game species was also consumed by lagomorphs and rodents. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2394https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2394Thu, 28 May 2020 10:07:10 +0100Collected Evidence: Collected Evidence: Encourage community-based participation in land management Two studies evaluated the effects of encouraging community-based participation in management of mammals to reduce mammal persecution. One study was in Pakistan and one was in India. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Abundance (1 study): A study in Pakistan found that involving local communities with park management was associated with an increasing population of Himalayan brown bears. BEHAVIOUR (0 STUDIES) OTHER (1 STUDY) Human behaviour change (1 study): A study in Namibia found that fewer farmers who engaged in community-based management of land, through membership of a conservancy, removed large carnivores from their land than did non-conservancy members. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2395https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2395Thu, 28 May 2020 10:25:29 +0100Collected Evidence: Collected Evidence: Provide supplementary water to increase reproduction/survival Six studies evaluated the effects on mammals of providing supplementary water to increase reproduction/survival. Two studies were in Australia and one each was in Oman, Portugal, Saudi Arabia and the USA and Mexico. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (5 STUDIES) Abundance (2 studies): A replicated study in the USA and Mexico found that providing supplementary water was associated with increases in desert bighorn sheep population size. A study in Oman found that a released captive-bred Arabian oryx population initially provided with supplementary water and food increased over 14 years. Reproduction (2 studies): A study in Saudi Arabia found that released captive-bred Arabian gazelles initially provided with supplementary water and food after release into a fenced area started breeding in the first year. A study in Australia found that most female released captive-reared black-footed rock-wallabies provided with supplementary water after release into a large predator-free fenced area reproduced in the first two years. Survival (2 studies): A controlled, before-and-after study in Australia found that most released captive-bred hare-wallabies provided with supplementary water, along with supplementary food and predator control, survived at least two months after release into a fenced peninsula. A study in Australia found that over half of released captive-reared black-footed rock-wallabies provided with supplementary water after release into a large predator-free fenced area survived for at least two years. BEHAVIOUR (1 STUDY) Use (1 study): A replicated study in Portugal found that artificial waterholes were used by European rabbits and stone martens. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2396https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2396Thu, 28 May 2020 10:44:07 +0100Collected Evidence: Collected Evidence: Translocate to re-establish or boost populations in native range Sixty-four studies evaluated the effects of translocating mammals to re-establish or boost populations in their native range. Twenty studies were in the USA, eight in Italy, four in Canada and South Africa, three in the Netherlands and Spain, two in each of the USA and Canada, Zimbabwe, Sweden, Australia and the USA and Mexico and one in each of Uganda, the UK, Brazil, France, Portugal, Africa, Europe, North America, Botswana, Nepal, Chile, Slovakia, Ukraine, Slovakia and Poland and one global study. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (62 STUDIES) Abundance (22 studies): Two studies (incuding one controlled and one before-and-after, site comparison study) in Spain and Canada found that translocating animals increased European rabbit abundance or American badger population growth rate at release sites. Fourteen studies (one replicated) in South Africa, the USA, the Netherlands, Italy, France and Spain found that following translocation, populations of warthogs, Eurasian beavers, red squirrels, roe deer, Alpine ibex, Iberian ibex, Cape mountain zebra, 22 species of grazing mammals, black bears, brown bear, bobcats and most populations of river otters increased. Two reviews in South Africa and Australia found that reintroductions (mainly through translocations) led to increasing populations for four of six species of large carnivores and that over half of translocations were classified as successful. One replicated study in the USA and Mexico found that translocating desert bighorn sheep did not increase the population size. Two studies (one replicated) and a review in USA and Canada, the USA and Australia found that translocated American martens, and sea otters at four of seven sites, established populations and that translocated and released captive-bred macropod species established populations in 44 of 72 cases. A study in Italy found that following the translocation of red deer, the density of Apennine chamois in the area almost halved. A worldwide review found that translocating ungulates was more successful when larger numbers were released, and small populations grew faster if they contained more mature individuals and had an equal ratio of males and females. Reproductive success (16 studies): A controlled study in Italy found that wild-caught translocated Apennine chamois reproduced in similar numbers to released captive-bred chamois. Fourteen studies (four replicated) in Canada, the USA, Zimbabwe, South Africa, the UK, Italy, the Netherlands and Slovakia found that translocated black and white rhinoceroses, warthogs, common dormice, European ground squirrels, cougars, bobcats, brown bears, sea otters, river otters and some Eurasian otters reproduced. A study in the Netherlands found that translocated beavers were slow to breed. Survival (39 studies): Four of five studies (including three controlled, two replicated and one before-and-after, site comparison study) in the USA, Canada and Chile found that wild-born translocated long-haired field mice, female elk, cougars and American badgers had lower survival rates than non-translocated resident animals. One found that translocated Lower Keys marsh rabbits had similar survival rates to non-translocated resident animals. Five of four studies (two replicated, four controlled) and two reviews in Canada, Canada and the USA, the USA, Italy, Sweden and Africa, Europe, and North America found that wild-born translocated swift foxes, European otters, black-footed ferret kits and a mix of carnivores had higher survival rates than released captive-bred animals. One study found that wild-born translocated Apennine chamois had a similar survival rate to released captive-bred animals. Twenty of twenty-one studies (including two replicated and one before-and-after study) and a review in Nepal, France, Italy, Portugal, Ukraine, Slovakia and Poland, Canada, USA, Brazil, Uganda, South Africa, Zimbabwe and Botswana found that following translocation, populations of or individual mammals survived between two months and at least 25 years. The other two studies found that two of 10 translocated white rhinoceroses died within three days of release and an American marten population did not persist. A review in Australia found that over half of translocations, for which the outcome could be determined, were classified as successful. Two of three studies (one replicated) and one review in Sweden, the UK, the Netherlands and the USA and Mexico found that following release of wild-caught translocated and captive-bred animals, European otters and common dormice survived three months to seven years. The review found that most black-footed ferret releases were unsuccessful at maintaining a population. A replicated study in the USA found that following translocation of bighorn sheep, 48–98% of their offspring survived into their first winter. Condition (3 studies): Three studies (including one replicated, controlled study) in the USA and Italy found that following translocation, populations of elk had similar levels of genetic diversity to non-translocated populations, descendants of translocated swift fox had genetic diversity at least as high as that of the translocated animals and brown bear genetic diversity declined over time. BEHAVIOUR (9 STUDIES) Use (7 studies): A study in Italy found that following translocation, Alpine ibex used similar habitats to resident animals. Two of four studies (including one randomized, controlled study) in the USA, Netherlands and Botswana found that following translocation (and in one case release of some captive-bred animals), most Eurasian otters settled and all three female grizzly bears established ranges at their release site. The other two studies found that most nine-banded armadillos and some white rhinoceroses (when released into areas already occupied by released animals) dispersed from their release site. Two studies (one replicated) in Spain found that following translocation, Iberian ibex expanded their range and roe deer increased their distribution six-fold. Behaviour change (2 studies): A replicated controlled study in Chile found that following translocation, long-haired field mice travelled two- to four-times further than non-translocated mice. A controlled study in Italy found that wild-caught translocated Apennine chamois moved further from the release site than released captive-bred animals. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2397https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2397Thu, 28 May 2020 10:46:18 +0100Collected Evidence: Collected Evidence: Graze herbivores on pasture, instead of sustaining with artificial foods One study evaluated the effects of grazing mammalian herbivores on pasture, instead of sustaining with artificial foods. This study was in South Africa. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Reproductive success (1 study): A site comparison study in South Africa found that a population of roan antelope grazed on pasture had a higher population growth rate than populations provided solely with imported feed. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2398https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F2398Thu, 28 May 2020 10:46:59 +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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