Collected Evidence: Collected Evidence: Introduce and enforce regulations for marine and freshwater mammal watching tours Four studies evaluated the effects of introducing regulations for marine and freshwater mammal watching tours on marine mammals. One study was in each of the North Atlantic Ocean (the Azores), the Cananéia estuary (Brazil), the South Pacific Ocean (Australia) and the Bass Strait (Australia). COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (4 STUDIES) Behaviour change (4 studies): Two controlled studies in the North Atlantic Ocean and South Pacific Ocean found that when whale-watching vessels followed approach regulations, fewer sperm whales and humpback whale pods changed their behaviours (e.g. swimming speed, aerial displays) or avoided the vessels compared to when regulations were not followed, but direction of movement and diving patterns or diving behaviours did not differ. One replicated, controlled study in the Cananéia estuary found that when tour boats followed approach regulations, fewer Guiana dolphins displayed negative behaviours (e.g. moving away, diving, groups separating). One study in the Bass Strait found that when boats approached a seal colony to 75 m, more seals remained on shore than when boats approached to 25 m. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2838https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2838Fri, 05 Feb 2021 16:16:26 +0000Collected Evidence: Collected Evidence: Introduce permits or licences for marine and freshwater mammal watching tours We found no studies that evaluated the effects of introducing permits or licences for marine and freshwater mammal watching tours on marine and freshwater mammal populations. ‘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%2Fwww.conservationevidence.com%2Factions%2F2839https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2839Fri, 05 Feb 2021 16:17:40 +0000Collected Evidence: Collected Evidence: Train tourist guides to minimize disturbance and promote marine and freshwater mammal conservation One study evaluated the effects of training tourist guides to minimize disturbance and promote marine and freshwater mammal conservation. The study was in the Kenai Fjords (Alaska). COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (1 STUDY) Behaviour change (1 study): One before-and-after study in the Kenai Fjords found that fewer harbour seals were disturbed during kayak excursions after training was provided to kayak guides. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2840https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2840Fri, 05 Feb 2021 16:20:01 +0000Collected Evidence: Collected Evidence: Introduce permits or licences for recreational watersports We found no studies that evaluated the effects of introducing permits or licences for recreational watersports on marine and freshwater mammal populations. ‘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%2Fwww.conservationevidence.com%2Factions%2F2841https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2841Fri, 05 Feb 2021 16:21:43 +0000Collected Evidence: Collected Evidence: Create designated areas or access points for recreational activities We found no studies that evaluated the effects of creating designated areas or access points for recreational activities on marine and freshwater mammal populations. ‘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%2Fwww.conservationevidence.com%2Factions%2F2842https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2842Fri, 05 Feb 2021 16:22:19 +0000Collected Evidence: Collected Evidence: Inform the public of ways to reduce disturbance to marine and freshwater mammals (e.g. use educational signs) One study evaluated the effects of informing the public of ways to reduce disturbance to marine and freshwater mammals. The study was in the South Pacific Ocean (New Zealand). COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (0 STUDIES) OTHER (1 STUDY) Change in human behaviour (1 study): One controlled study in the South Pacific Ocean found that tourist groups that observed information signs approached and disturbed New Zealand fur seals in similar numbers to those that did not. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2843https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2843Fri, 05 Feb 2021 16:24:16 +0000Collected Evidence: Collected Evidence: Use volunteers to deter tourists from harassing marine and freshwater mammals at wildlife-viewing sites One study evaluated the effects of using volunteers to deter tourists from harassing marine and freshwater mammals at wildlife-viewing sites. The study was at the Ohau Stream waterfall (New Zealand). COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (0 STUDIES) OTHER (1 STUDY) Change in human behaviour (1 study): One randomized, controlled study at the Ohau Stream waterfall found that the presence of an official-looking volunteer resulted in fewer tourists harassing New Zealand fur seals at a waterfall. Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2844https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2844Fri, 05 Feb 2021 16:27:37 +0000Collected Evidence: Collected Evidence: Limit, cease or prohibit feeding of marine and freshwater mammals by tourists One study evaluated the effects of setting limits on feeding of marine mammals by tourists. The study was in Shark Bay (Australia). COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (1 STUDY) Survival (1 study): One controlled, before-and-after study in Shark Bay found that after setting limits on feeding of bottlenose dolphins by tourists, the survival of calves born to females being fed increased and was similar to calves of non-fed mothers. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2845https%3A%2F%2Fwww.conservationevidence.com%2Factions%2F2845Fri, 05 Feb 2021 16:31:57 +0000
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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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