Conservation Evidence: Evidence Data

Collected Evidence: Collected Evidence: Provide artificial shade for individuals Two studies evaluated the effects of providing artificial shade for individuals on reptile populations. One study was in Australia and one was in Canada. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (0 STUDIES) BEHAVIOUR (2 STUDIES) Use (2 studies): One replicated, randomized study in Australia found that shaded, artificial rocky outcrops were used less often than unshaded ones by velvet geckos. One study in Canada found that coverboards were used by northern pacific rattlesnakes in the year they were installed, but not a decade later. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3641https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3641Thu, 09 Dec 2021 15:17:20 +0000Collected Evidence: Collected Evidence: Provide artificial shade for nests or nesting sites Four studies evaluated the effects of providing artificial shade for nests or nesting sites on reptile populations. Two studies were in the USA and one was in each of Panama, and Australia. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (3 STUDIES) Reproductive success (3 studies): One of two controlled studies (including one replicated study) in Panama and Australia found that shaded leatherback turtles nests had higher hatching success than unshaded nests. The other study found that shaded and unshaded loggerhead turtle nests had similar hatching success. One replicated, controlled study in the USA found that relocating diamondback terrapin nests to artificial nest mounds and providing shade had mixed effects on hatchling success. Condition (2 studies): One of two controlled studies (including one replicated study) in Panama and Australia found that greater shade cover resulted in smaller hatchlings for leatherback turtles. The other study found that shading loggerhead turtle nests had mixed effects on hatchling size and crawl speed. BEHAVIOUR (0 STUDIES) OTHER (2 STUDIES) Offspring sex ratio (2 studies): One of two controlled studies (including one before-and-after study) in Panama and the USA found that shading leatherback turtle nests resulted in fewer female hatchlings compared to unshaded nests. The other study found that shaded and unshaded Agassiz’s desert tortoise nests produced a similar sex ratio of hatchlings. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3643https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3643Thu, 09 Dec 2021 15:28:57 +0000Collected Evidence: Collected Evidence: Protect habitat along elevational gradients We found no studies that evaluated the effects of protecting habitat along elevational gradients on reptile 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%2Fconservationevidencejournal.com%2Factions%2F3647https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3647Thu, 09 Dec 2021 15:47:19 +0000Collected Evidence: Collected Evidence: Reduce cumulative heating effects of urban development by planting vegetation We found no studies that evaluated the effects of reducing the cumulative heating effects of urban development by planting vegetation on reptile 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%2Fconservationevidencejournal.com%2Factions%2F3648https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3648Thu, 09 Dec 2021 15:49:09 +0000Collected Evidence: Collected Evidence: Use irrigation systems Two studies evaluated the effects of using irrigation systems on reptile populations. Both studies were in the USA. COMMUNITY RESPONSE (0 STUDIES) POPULATION RESPONSE (2 STUDIES) Reproductive success (1 study): One replicated, controlled study in the USA found that hatching success of Agassiz’s desert tortoises was similar in irrigated and non-irrigated enclosures. Survival (1 study): One replicated, controlled study in the USA found that survival of juvenile Agassiz’s desert tortoises was similar in irrigated and non-irrigated enclosures. Condition (2 studies): Two replicated, controlled studies (including one paired study) in the USA found that irrigating nests had mixed effects on growth of Agassiz’s desert tortoises and loggerhead turtles. One of the studies also found that loggerhead turtle hatchlings from nests that were irrigated were larger than those from non-irrigated nests. BEHAVIOUR (0 STUDIES)Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3649https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3649Thu, 09 Dec 2021 15:53:32 +0000