Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Regulate wildlife harvesting Four studies evaluated the effects of regulating wildlife harvesting on reptile populations. One study was in each of Costa Rica, Australia, Indonesia and Japan. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Abundance (2 studies): One before-and-after study in Australia found that following legal protection and harvest regulations, the density of saltwater crocodile populations increased. One before-and-after study in Japan found that following regulation of the green turtle harvest in combination with allowing harvested turtles to lay eggs prior to being killed, the number of nesting females tended to be higher. Reproductive success (1 study): One before-and-after study in Japan found that following regulation of the green turtle harvest in combination with allowing harvested turtles to lay eggs prior to being killed, the number of hatchlings produced in natural nests tended to be higher. Condition (1 study): One before-and-after study in Australia found that following legal protection and harvest regulations, the average size of crocodiles increased. BEHAVIOUR (0 STUDIES) OTHER (2 STUDIES) Human behaviour change (2 studies): One replicated study in Costa Rica found that in an area with a legalized turtle egg harvest run by a community cooperative, a majority of people reported a willingness to do more to protect sea turtles. One study in Indonesia reported that quotas to regulate wildlife harvesting did not limit the number of individuals of three reptile species that were harvested and exported. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3538https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3538Tue, 07 Dec 2021 16:33:38 +0000Collected Evidence: Collected Evidence: Commercially breed reptiles to reduce pressure on wild populations One study evaluated the effects on reptile populations of commercially breeding reptiles to reduce pressure on wild populations. This study was in the Cayman Islands. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (0 STUDIES) OTHER (1 STUDY) Human behaviour change (1 study): One study in the Cayman Islands found that where there was a commercial turtle farm, consumption and purchase of wild turtle products was rare, though some residents still showed a preference for wild turtle meat. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3539https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3539Tue, 07 Dec 2021 16:45:46 +0000Collected Evidence: Collected Evidence: Enforce regulations to prevent trafficking and trade of reptiles We found no studies that evaluated the effects on reptile populations of enforcing regulations to prevent trafficking and trade of reptiles. ‘We found no studies’ means that we have not yet found any studies that have directly evaluated 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%2Fconservationevidencejournal.com%2Factions%2F3540https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3540Tue, 07 Dec 2021 16:50:25 +0000Collected Evidence: Collected Evidence: Patrol or monitor nesting beaches Seven studies evaluated the effects of patrolling or monitoring nesting beaches on reptile populations. Three studies were in Costa Rica and one was in each of the US Virgin Islands, Mexico, Mozambique and the Dominican Republic. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Reproductive success (2 studies): One before-and-after site comparison study in Costa Rica found that olive ridley turtle nests that were moved to a patrolled hatchery and nests that were camouflaged on the nesting beach had similar hatching success. One replicated, controlled study in the Dominican Republic found that on beaches with regular patrols, hatching success of leatherback turtle nests was higher than in nests relocated to hatcheries. BEHAVIOUR (0 STUDIES) OTHER (6 STUDIES) Human behaviour change (6 studies): Two studies in the US Virgin Islands and Costa Rica found that during years when beach patrols were carried out poaching of leatherback turtle nests decreased. Three studies (including two before-and-after studies) in Costa Rica and Mexico found that when beach patrols were carried out in combination with either an education programme for local communities, limiting beach access or camouflaging nests and moving nests to a hatchery, poaching of leatherback turtle nests and olive ridley turtle nests decreased. One before-and-after study in Mozambique found that during a community-based turtle monitoring project no green turtle egg collection or hunting of adults was recorded. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3541https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3541Tue, 07 Dec 2021 16:56:30 +0000Collected Evidence: Collected Evidence: Introduce alternative income sources to replace hunting or harvesting of reptiles One study evaluated the effects on reptile populations of introducing alternative income sources to replace hunting or harvesting of reptile populations. This study was in St Kitts1. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (0 STUDIES) OTHER (1 STUDY) Human behaviour change (1 study): One before-and-after study in St Kitts1 found that fishers that took jobs on a turtle management project reported that they ceased turtle fishing activity. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3542https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3542Tue, 07 Dec 2021 17:10:17 +0000