Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Provide supplementary food for a certain period of time only One study in Tanzania found that a chimpanzee population increased after supplementary feeding for two months immediately after reintroduction, alongside other interventions. One before-and-after study in Brazil found that a golden lion tamarin population declined after one year following supplementary feeding, alongside other interventions. One study in Brazil found that an abandoned infant muriqui was retrieved by its mother and rejoined the wild group after supplementary feeding, alongside other interventions. Four studies in Brazil, Madagascar, and South Africa found that only a minority of reintroduced primates survived after supplementary feeding, alongside other interventions. One study in Guinea found that the majority of introduced chimpanzees survived for at least 27 months following supplementary feeding, alongside other interventions.. Three studies in Gabon, South Africa and Vietnam found that a majority of primates survived reintroduction while being supplimentry fed alongside other interventions. Two studies in Gabon and the Republic of Congo found that the majority of lowland gorillas survived for at least nine months to four years after provision of supplementary food, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1528https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1528Thu, 19 Oct 2017 10:13:06 +0100Collected Evidence: Collected Evidence: Implement quarantine for primates before reintroduction/translocation One before-and-after study in Brazil found that most reintroduced golden lion tamarins did not survive over seven years despite being quarantined before release, alongside other interventions. One before-and-after study in Uganda found that a reintroduced chimpanzee repeatedly returned to human settlements after being quarantined before release, alongside other interventions. One before-and-after study in Madagascar found that most reintroduced black-and-white ruffed lemurs did not survive over five years despite being quarantined before release, alongside other interventions. One before-and-after study in Malaysia found that a population of reintroduced orangutans decreased by 33% over 40 years despite individuals being quarantined before release, alongside other interventions. A controlled study in Indonesia found that all orangutans that underwent quarantine prior to release, alongside other interventions, survived over three months. One before-and-after, site comparison study in the Republic of Congo and Gabon found that more than 80% of the reintroduced gorillas that underwent quarantine, alongside other interventions, survived over a ten year period. Two site comparison studies in Vietnam and a before-and-after study in Indonesia found that most reintroduced lorises either died or their radio signal was lost despite being quarantined before release, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1541https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1541Thu, 19 Oct 2017 15:44:09 +0100Collected Evidence: Collected Evidence: Treat sick/injured animals Two before-and-after studies in Brazil found that most reintroduced golden lion tamarins died despite being treated when sick or injured, alongside other interventions. One study in Brazil found that one out of four reintroduced black lion tamarins died after being release despite receiving treatment, alongside other interventions. One review on reintroduced lar gibbons in Thailand found that their population declined by 6% seventeen months after release despite having medical treatment available when sick or injured, alongside other interventions. One study in Malaysia found that 98% of translocated orangutans, some of which received treatment for injuries along with other interventions, survived capture and subsequent release. One controlled study, also in Malaysia, found that a population of reintroduced orangutans decreased by 33% over 33 years despite receiving treatment when sick or injured, alongside other interventions. Four studies, including two before-and-after studies, in Liberia, the Republic of Congo and The Gambia found that most reintroduced chimpanzees that were treated when sick, alongside other interventions, survived for at least 1-5 years and in one case the population increased. One study in Senegal found that a young chimpanzee was reunited with its mother after being treated for injuries, alongside other interventions. One before-and-after study in Uganda found that treatment for mange, alongside other interventions, cured some infected mountain gorillas. One study in Rwanda, Uganda and the Democratic Republic of Congo and one before-and-after, site comparison study in the Republic of Congo and Gabon found that most western lowland gorillas treated when sick or injured, alongside other interventions, survived over 4–41 years. Two before-and-after studies in South Africa and Indonesia found that most reintroduced or translocated primates that were treated when sick, alongside other interventions, survived over six months. However, two before-and-after studies in Madagascar and Kenya found that most reintroduced or translocated primates did not survived over five years or their population size decreased despite treated when sick, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1550https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1550Thu, 19 Oct 2017 18:35:05 +0100Collected Evidence: Collected Evidence: Remove/treat external/internal parasites to increase reproductive success/survival One before-and-after study in Brazil found that most reintroduced golden lion tamarins treated for parasites, alongside other interventions, did not survive over seven years post-release. Three studies, including two before-and-after studies, in the Republic of Congo and The Gambia found that 70% of reintroduced chimpanzees treated for parasites, alongside other interventions, survived for at least 3.5-5 years and in one case the population increased. One study in Gabon found that 33% of reintroduced mandrills died within one year after release despite being treated for parasites, alongside other interventions. Two site comparison studies in Vietnam found that most reintroduced pygmy slow lorises died or disappeared (lost radio signal soon after release) despite being treated for parasites, alongside other interventions. One before-and-after, site comparison study in the Republic of Congo and Gabon and one before-and-after study in Gabon found that most western lowland gorillas treated for parasites, alongside other interventions, survived over nine months or four years. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1551https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1551Thu, 19 Oct 2017 19:11:32 +0100Collected Evidence: Collected Evidence: Conduct veterinary screens of animals before reintroducing/translocating them One before-and-after study in Brazil found that most reintroduced golden lion tamarins did not survive over seven years, despite undergoing pre-release veterinary screens, alongside other interventions. One study in Brazil found that most reintroduced black lion tamarins that underwent veterinary screens, alongside other interventions, survived over four months. One before-and-after study in Malaysia found that 90% of reintroduced Müller's Bornean gibbons did not survive despite undergoing veterinary screens, alongside other interventions. One controlled study in Indonesia found that reintroduced Bornean agile gibbons that underwent veterinary screens, alongside other interventions, behaved similarly to wild gibbons. Two studies, including one controlled, in Malaysia and Indonesia found that most translocated orangutans that underwent veterinary screens, along with other interventions, survived translocation and the first three months post-translocation. Four studies, including three before-and-after studies, in Liberia, the Republilc of Congo and Guinea found that most reintroduced chimpanzees that underwent veterinary screens, alongside other interventions, survived over 1-5 years. One before and after study in Uganda found that a reintroduced chimpanzee repeatedly returned to human settlements after undergoing pre-release veterinary screens, alongside other interventions. Five studies, including four before-and-after studies, in Belize, French Guiana, Madagascar, Congo and Gabon found that most reintroduced or translocated primates that underwent veterinary screens, alongside other interventions, survived at least four months or increased in population size. Five studies, including four before-and-after studies, in French Guiana, Madagascar, South Africa and Vietnam found that most reintroduced or translocated primates were assumed to have died post-release despite undergoing pre-release veterinary screens, alongside other interventions. One controlled study in Kenya found that a population of translocated olive baboons were still surviving 16 years after translocation when veterinary screens were applied alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1553https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1553Thu, 19 Oct 2017 20:15:52 +0100Collected Evidence: Collected Evidence: Allow primates to adapt to local habitat conditions for some time before introduction to the wild Two studies in Brazil and Thailand found that reintroduced primate populations were smaller after 12-17 months and one study in Belize found primate populations increased five years after allowing individuals to adapt to local habitat conditions before introduction into the wild, alongside other interventions. One study found that a reintroduced population of black howler monkeys had a birth rate of 20% after they were allowed to adapt to local habitat conditions before introduction into the wild, along with other interventions. Seven studies in Brazil, Madagascar, Malaysia, French Guiana, South Africa found that a minority of primates survived for at least 15 weeks to 12 years after allowing them to adapt to local habitat conditions before introduction into the wild, along with other interventions. Four studies in Belize, Brazil, Gabon, South Africa found that the majority of primates survived for at least four to 12 months. One study in Vietnam found that half of reintroduced pygmy slow lorises survived for at least two months. Two before-and-after studies in Gabon and the Republic of Congo found that a majority of western lowland gorillas survived for nine months to four years after allowing them to adapt to local habitat conditions before introduction into the wild, along with other interventions. Three studies in Liberia and the Congo found that a majority of chimpanzees survived for at least three to five years after allowing them to adapt to local habitat conditions before introduction into the wild, along with other interventions. One before-and-after study in Uganda found that a chimpanzee repeatedly returned to human settlements after allowing it to adapt to local habitat conditions before introduction into the wild, along with other interventions. A study in Indonesia found that Sumatran orangutans that were allowed to adapt to local habitat conditions before introduction performed less well than individuals that were directly released into the forest, alongside other interventions. One controlled study in Indonesia found that after being allowed to adapt to local habitat conditions a pair of introduced Bornean agile gibbons had a similar diet to wild gibbons. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1564https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1564Fri, 20 Oct 2017 10:08:36 +0100Collected Evidence: Collected Evidence: Reintroduce primates in groups Two studies in Brazil and Thailand found that populations of introduced primates declined after reintroduction in groups, alongside other interventions, while one study in Belize recorded an increase in populations. Two studies in Madagascar and India found that primate populations persisted 4-55 years after reintroduction in groups, alongside other interventions. Seven studies in Brazil, French Guiana, Madagascar, and South Africa found that a minority of primates survived for at least 15 weeks to seven years after reintroduction in groups, alongside other interventions. Seven studies in Belize, Brazil, French Guiana, Madagascar, and South Africa found that a majority of primates survived after between two and thirty months. One study in Madagascar found that introduced black-and-white ruffed lemurs Varecia variegata had similar diets to individuals in a wild population after reintroduction in groups, alongside other interventions. One study in The Gambia found that a population of introduced chimpanzees increased 25 years after reintroduction in groups, alongside other interventions. Four studies in Guinea, Liberia and the Republic of Congo found that the majority of chimpanzees survived for at least two to five years, after reintroduction in groups, alongside other interventions. Two before-and-after studies in Gabon and the Republic of Congo found that the majority of western gorillas survived for at least nine months to four years, after reintroduction in groups, alongside other interventions. One controlled study in Indonesia found that all Sumatran orangutans survived for at least three months after reintroduction in groups, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1567https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1567Fri, 20 Oct 2017 10:46:09 +0100Collected Evidence: Collected Evidence: Reintroduce primates as single/multiple individuals One study in Tanzania found that a reintroduced population of chimpanzees increased in size after reintroduction as single/multiple individuals, alongside other interventions. One study in Senegal found that an infant chimpanzee was reunited with its mother after reintroduction, alongside other interventions. Two studies in Brazil and Thailand found that populations of reintroduced primates declined after reintroduction as single/multiple individuals, alongside other interventions. Four studies in French Guiana, Indonesia, Malaysia, and Vietnam found that a minority of primates survived after between two months and one year after reintroduction as single/multiple individuals, alongside other interventions. One study in Vietnam found that half of introduced primates survived after two months. One study in Brazil found that an abandoned infant muriqui was reunited with its mother after reintroduction as single/multiple individuals, alongside other interventions. One study in Indonesia found that Bornean agile gibbons had similar behaviour and diet to wild populations after reintroduction as single/multiple individuals, alongside other interventions. One controlled study in Malaysia found that a reintroduced population of orangutans declined in size after reintroduction, alongside other interventions. One study in Malaysia found that 98% of orangutans survived release after reintroduction, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1589https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1589Fri, 20 Oct 2017 13:18:43 +0100Collected Evidence: Collected Evidence: Reintroduce primates into habitat where the species is absent One study in The Gambia found that a population of reintroduced chimpanzees increased over 25 years after reintroduction into habitat where the species was absent, alongside other interventions. One controlled study in Indonesia found that all Sumatran orangutans survived for at least three months after reintroduction into habitat where the species was absent, alongside other interventions. One before-and-after study in the Republic of Congo found that a majority of reintroduced gorillas survived for at least four years after reintroduction into habitat where the species was absent, alongside other interventions. One study in Thailand found that a reintroduced population of lar gibbons declined over three years following reintroduction into habitat where the species was absent, alongside other interventions. One study in India found that a population of reintroduced rhesus monkeys persisted for at least four years after reintroduction. Six studies (including four before-and-after studies) in Belize, Gabon, Madagascar, Malaysia, South Africa, and Vietnam found that a majority of primates survived for two to thirty months after reintroduction into habitat where the species was absent, alongside other interventions. Two studies in Malaysia and Vietnam found that a minority of primates survived after between three months and 12 years. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1590https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1590Fri, 20 Oct 2017 13:38:29 +0100Collected Evidence: Collected Evidence: Reintroduce primates into habitat where the species is present Four before-and-after studies in Guinea and the Republic of Congo found that the majority of reintroduced chimpanzees survived for at least one to five years after reintroduction into habitat where the species was present, alongside other interventions. One study in Uganda found that a reintroduced chimpanzee repeatedly returned to human settlements after reintroduction intro habitat where the species was present, alongside other interventions, while a study in Senegal found that a reintroduced chimpanzee was reunited with its mother. One study in Malaysia found that a majority of reintroduced orangutans survived reintroduction intro habitat where the species was present, alongside other interventions. One controlled study in Malaysia found that a reintroduced population of orangutans had declined 33 years after reintroduction into habitat where the species was present, alongside other interventions. One study in Belize found that primate population increased five years after reintroduction into habitat where the species was present, alongside other interventions, while one study in Thailand found that primate population declined post-reintroduction. Six studies in Brazil, French Guiana, Indonesia, Madagascar, and South Africa found that a minority of primates survived for at least fifteen weeks to seven years after reintroduction into habitat where the species was present, alongside other interventions. Five studies in Brazil, French Guiana, Gabon, and South Africa found that a majority of primates survived for at least two months to one year. Two controlled studies in Madagascar and Indonesia found that reintroduced primates had similar diets to individuals in wild populations after reintroduction into habitat where the species was present, alongside other interventions. One controlled study in Indonesia found that reintroduced primates showed similar behaviour to wild individuals after reintroduction into habitat where the species was present, alongside other interventions. One study in Brazil found that a reintroduced muriqui rejoined a wild group after reintroduction into habitat where the species was present, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1591https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1591Fri, 20 Oct 2017 13:46:00 +0100Collected Evidence: Collected Evidence: Reintroduce primates into habitat with predators Two before-and-after studies in Brazil found that most golden lion tamarins reintroduced into habitat with predators, alongside other interventions, did not survive over one to seven years but reproduced succesfully. Three studies, including two before-and-after studies, in the Congo, The Gambia and Guinea, found that most chimpanzees reintroduced into habitat with predators, alongside other interventions, survived over one to five years or increased population numbers. One before-and-after study in Gabon found that most western lowland gorillas reintroduced into habitat with predators, alongside other interventions, survived over nine months. One before-and-after study in Madagascar found that most black-and-white ruffed lemurs reintroduced into habitat with predators did not survive over five years. One study in Madagascar found that all reintroduced lemurs survived over 30 months after being released into habitat with predators, along with other interventions. One study in Gabon found that most mandrills reintroduced into habitat with predators, alongside other interventions, survived over 30 years. Two before-and-after studies in South Africa found that most vervet monkeys reintroduced into habitat with predators, alongside other interventions, survived over six months. Two studies, including one before-and-after study, in Vietnam and Indonesia found that most lorises reintroduced into habitat with predators, alongside other interventions, were assumed dead within approximately one year after being released. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1593https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1593Fri, 20 Oct 2017 14:16:39 +0100Collected Evidence: Collected Evidence: Rehabilitate injured/orphaned primates One before-and-after study in Brazil found that most reintroduced golden lion tamarins did not survive over seven years, despite being rehabilitated, alongside other interventions. Two before-and-after studies in South Africa found that most reintroduced vervet monkeys survived over six months after being rehabilitated before release, alongside other interventions. Two before-and-after studies in the Republic of Congo found that most reintroduced chimpanzees survived over 3.5–5 years after undergoing pre-release rehabilitation, alongside other interventions. One study in The Gambia found that numbers of reintroduced chimpanzees that underwent pre-release rehabilitation, alongside other interventions, increased by 38% over 25 years. One review on bonobos, chimpanzees and gorillas in 13 African countries found that rehabilitated bonobos living in sanctuaries did not reproduce but the reproductive rate of chimpanzees was 14% and of gorillas was 2%. One controlled study in Indonesia found that Bornean agile gibbons that were rehabilitated before release, alongside other interventions, behaved similarly to wild gibbons. One controlled study in Malaysia found that numbers of reintroduced orangutans decreased by 33% over 33 years, despite orangutans being rehabilitated before release. One controlled study in Indonesia found that most translocated orangutans that were rehabilitated before release, along with other interventions, survived over three months. One before-and-after, site comparison study in the Congo and Gabon found that most western lowland gorillas that were rehabilitated before release, alongside other interventions, survived over four years. One before-and-after study in Gabon found that one out of two western lowland gorillas that were reintroduced died despite being rehabilitated, alongside other interventions. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1597https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F1597Fri, 20 Oct 2017 14:47:02 +0100