Study

Giving leopard frogs a head start

Actions

This study is summarised as evidence for the following.

Action Category

Head-start amphibians for release

Action Link
Amphibian Conservation
  1. Head-start amphibians for release

    A replicated, before-and-after study in 1995–2007 of chiricahua leopard frogs Lithobates chiricahuensis at the Phoenix Zoo, USA (Sprankle 2008) found that head-starting and releasing tadpoles and froglets increased populations. With releases, some populations had recovered enough to produce hundreds of egg masses by 2001. By 2007, the number of ponds where frogs had become or were becoming established had increased four-fold. In captivity, over 90% of egg masses survived to froglets or late stage tadpoles, compared to only about 5% reaching metamorphosis in the wild. Egg masses were collected from the wild from the late 1990s. Between 1995 and 2007, over 7,000 tadpoles and frogs were head-started. Froglets and late stage tadpoles were released back to the wild.

     

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 17

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