Study

The power of genetic monitoring for studying demography, ecology, and genetics of a reintroduced brown bear population

  • Published source details De Barba M., Waits L.P., Garton O.E., Genovesi P., Randi E., Mustoni A. & Groff C. (2010) The power of genetic monitoring for studying demography, ecology, and genetics of a reintroduced brown bear population. Molecular Ecology, 19, 3938-3951

Actions

This study is summarised as evidence for the following.

Action Category

Translocate to re-establish or boost populations in native range

Action Link
Terrestrial Mammal Conservation
  1. Translocate to re-establish or boost populations in native range

    A study in 1999–2008 in an area of mixed agricultural land, forest, and grassland in the Alps of northern Italy (De Barba et al. 2010) found that following translocation, brown bears Ursus arctos bred successfully in the release area and the population increased, but genetic diversity declined. Three years after the first translocations, there were 10 bears in the area. By nine years after the first translocations, this increased to 27–31 bears. Over this time, 35 cubs had been born. However, genetic diversity declined over time (data reported as allelic richness). In 1999–2002, nine bears were caught in Slovenia and translocated into Trentino, Italy, where the resident population had fallen to around three individuals. In 2002–2008, hair and faecal samples were collected opportunistically and along transects. Samples were also collected from bear carcasses found in the area. DNA from these samples was analysed to identify individuals and to measure genetic diversity.

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