1 Mar 2024

The Welsh wilderness is FULL of natural wonders.

From ancient coastlines overflowing with seabirds to misty valleys harbouring hidden species, each corner of Wales offers a unique variety of native wildlife. And we’ve been working there for years to help protect some of their most precious species.

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REINTRODUCING ONE OF THE RAREST REPTILES IN THE UK

The sand lizard is one of the most endangered reptiles in Britain and was believed to have gone extinct in Wales in the 1950’s. However, our conservationists have been supporting a reintroduction programme since 1994 to help save them from the brink of extinction.

This unique, egg-laying lizard experienced catastrophic declines in numbers following the severe loss and fragmentation of the sandy areas it calls home. After a carefully planned breeding programme at the zoo, we worked with several partners, including Natural England, the Amphibian and Reptile Conservation Charity, the Herpetological Conservation Trust, and Natural Resources Wales, to reintroduce sand lizards back to their native habitat.

By boosting the wild population of this special reptile, we’ve provided them with an opportunity to thrive again along Wales’s sun-kissed sand dunes.

SAVING THE HIDDEN TREE OF THE GREAT ORME

Did you know there’s a tree species that’s found nowhere else on the planet other than the exposed, isolated cliff faces of the Great Orme, Llandudno?

Wild Cotoneaster (Cotoneaster cambricus) is a beautiful, incredibly rare shrub that produces pink-white flowers and brightly coloured red/orange berries. It was widespread across the Great Orme in the 18th Century but, as a result of people collecting too many due to their rarity, their numbers dropped to just six individual plants.

A close up a cotoneaster branch

Sadly, the trees are not regenerating naturally as grazing animals are reducing the size and flowering of older plants and preventing any seedlings from growing properly.

Our plant conservationists have been cultivating them in our nursery at the zoo and replanting individuals back into their wild home. These efforts have resulted in the number of plants at the site increasing from six to around 80 plants. Further to this, after years of dedicated efforts, our team will plant 30 more plants at the site in March 2024 to once again boost the population of this near extinct species and protect this hidden treasure of North Wales.

RETURNING PINE MARTENS TO WELSH WOODLANDS

We’ve been working to reverse the decline of this iconic woodland species in Wales for over eight years.

While the elusive pine marten is now thriving in Scottish woodlands, populations in Wales and England are on the edge of extinction. Over eight years ago, we joined the Pine Marten Recovery Project to help reverse this and bring self-sustaining populations back to these countries.

Showing some visitors of the project the soft release pens, where we housed and monitored the pine martens before release
Soft release pens in Wales, where pine martens were housed and monitored before being release into the wild.

The project, led by The Vincent Wildlife Trust, successfully relocated 51 pine martens from the Scottish Highlands into forests in mid-Wales from 2015 to 2018. And, excitingly, the new wild population gave birth to many offspring in the years following their introduction.

We’ve been at the forefront of this conservation success story, and hope to see the beautiful and rare pine marten thrive across woodlands in Wales for years to come thanks to the incredible efforts of this multi-partner project.

REDISCOVERING AN EXTINCT SPECIES

The yellow sally stonefly was thought to be extinct in the UK and hadn’t been seen in Wales since 1995. However, in 2022, a chance discovery in the River Dee, North Wales, led to a desperate mission to rescue them from extinction.

Working together with Buglife Cymru, The Welsh Dee Trust, and a freshwater invertebrate specialist, we carefully collected 30 individuals from this site and transferred them to our specialist facilities here at the zoo.

After meticulously studying the lives of these stoneflies, our incredible team went on to achieve the first successful breeding of this critically endangered species in Europe.

The project team will now carry out more surveys for the unique yellow sally stonefly and will look to potentially reintroduce populations across their historic range in Wales.

OVER A DECADE OF RESEARCH ON THE HAZEL DORMOUSE

Our research project on the iconic hazel dormouse in Denbighshire, North Wales, is the largest of its kind in the UK. For more than a decade, we’ve been microchipping and studying the dormouse population in this area with Natural Resources Wales, helping to uncover the secret lives of these unique little mammals.

Chester Zoo conservationists collect data as part of a 10-year dormouse study, in woodland in Bontuchel, North Wales
Chester Zoo conservationists collect data as part of a 10-year dormouse study in Denbighshire, North Wales.

We’ve discovered unique behaviours that were never before recorded in the UK, such as females producing two litters. With dormice numbers having dropped by 70% this century, mainly due to the loss of suitable woodland habitat, projects like this provide vital information to help save this flagship species before it’s too late.

As we reflect on these conservation triumphs, we invite you to join us in our mission to protect and preserve Welsh wildlife. Together, we can champion the remarkable biodiversity of Wales and beyond.

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