Study

The effect of different UV and calcium provisioning on health and fitness traits of red-eyed tree frogs (Agalychnis callidryas)

  • Published source details Antwis R.E., Preziosi R.E. & Fidgett A.L. (2014) The effect of different UV and calcium provisioning on health and fitness traits of red-eyed tree frogs (Agalychnis callidryas). Journal of Zoo and Aquatic Research, 2

Actions

This study is summarised as evidence for the following.

Action Category

Amphibians: Vary quality or quantity (UV% or gradients) of enclosure lighting to simulate seasonal changes in the wild

Action Link
Management of Captive Animals
  1. Amphibians: Vary quality or quantity (UV% or gradients) of enclosure lighting to simulate seasonal changes in the wild

    A replicated, controlled study in 2014 in Manchester, UK found that there was no significant effect in clutch size for red-eyed tree frogs Agalychnis callidryas when given ultraviolet (UV) boost treatment, in conjunction with a diet supplemented with calcium. Two clutches were laid from two females in the background UV group (number eggs laid: 118), and four clutches from seven females in the UV boost group (184). There was no statistically significant effect of UV treatment on clutch size (background UV: 59; UV boost: 74). Frogs given the UV boost had significantly more fungal colony forming units (CFU’s) in comparison to frogs that were not UV-boosted (background UV: 2-3 CFU’s; pre-UV boost: 2 CFU’s; post-UV boost: 13 CFU’s). Forty frogs were used in four treatment groups, which started three months after their metamorphosis: background UV, 5% calcium diet; background UV, 10% calcium diet; background UV with UV boost, 5% calcium diet; background UV with UV boost, 10% calcium diet. Frogs receiving the “UV boost” treatment were put under a 300-watt Osram™ Ultra Vitalux mercury vapour sun lamp suspended 40cm above the base of the tank for 20 minutes. Breeding trials were conducted immediately after the UV boost trials.

Output references

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, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust