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2025 wrap-up: Biosphere Expeditions in the Maldives – 14 years of coral reef conservation

Four divers, a reef and a white transect tape
A team surveying a reef along a 100 m transect tape

In 2025, Biosphere Expeditions continued its long-standing citizen-science project in the Maldives, focusing on coral reef health through hands-on volunteer expeditions. Since 2011, these marine surveys have been an important constant of local reef conservation, blending scientific rigour, citizen science and immersive adventure.

The 2025 expedition brought together diverse teams of volunteers and scientists aboard a liveaboard vessel, each group contributing to Reef Check-standard surveys across multiple atolls. These surveys involve underwater assessments of coral cover, fish populations and other ecological indicators to track reef health across time.

A group of people standing on the top deck of a boat
One of the expedition teams

Long-term monitoring reveals trends: Outer reefs doing well, inner reefs in slow decline

A special emphasis on revisiting long-term monitoring sites allows Biosphere Expeditions to build multi-year datasets that reveal trends in reef resilience and degradation. The expedition’s work has resulted in annual scientific reports and many publications in the literature. 

During the 2025 expedition, citizen scientists surveyed 11 reefs and documented a mixed picture of reef conditions: some sites showed stable or improving coral cover, especially on ocean-fed outer reefs, while inner lagoon sites, more exposed to warming and stress, continued to struggle. 

Resilient outer reefs in Ari atoll had maintained levels of coral cover and had reasonably good reef fish populations with 50 – 60% hard coral cover on the deeper surveys (6 – 10 m depth). Some reef sites within atolls showed a further recovery for hard coral cover since the 2016 mass coral bleaching, reaching 40 – 50% cover on more shallow sites (3 – 5 m depth). However, other inner reefs continue to show a ‘phase-shift’ to a non-coral dominated status with opportunistic / fast-growing benthic fauna such as the coralliomorph Discosoma smothering the reef surface at one site (Dega Thila) and currently preventing the re-establishment of corals and other benthic groups.

A colourful reef with a moray eel hiding inside
A healthy outer reef
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2025 wrap-up: Multi-disciplinary citizen science expedition to Vwaza Marsh Wildlife Reserve (Malawi) studying elephants, hippos & others

A group of elephants stands close to each other in a dry plain
Elephants at Vwaza Marsh Wildlife Reserve, Malawi

Biosphere Expeditions has completed another successful Africa volunteer expedition in Malawi, gathering long-term research data on biodiversity in one of the country’s least-studied wildlife reserves.

Conservation expedition to Vwaza Marsh Wildlife Reserve

Working closely with Malawi’s Lilongwe Wildlife Trust (LWT), the volunteer expedition team spent two weeks at Vwaza Marsh Wildlife Reserve, researching the populations of elephants and hippos around Lake Kazuni, along with surveys of other mammals and birds, using camera traps and direct observation.

Blue sky, trees and dry soil in a hot environment
Mopane woodlands and a lake floodplain at Vwaza Marsh Wildlife Reserve, Malawi
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2025 round-up: Citizen science wolf volunteering project in Germany delivers again

A white wolf howling in the woods in Germany
A white wolf howling in the woods in Germany (c) Christiane Flechtner

The 2025 Biosphere Expeditions wolf conservation project in Lower Saxony, Germany has once again made a significant contribution to state wolf monitoring efforts. It collected 79 scat samples, 13 of which are “good and fresh enough” – says expedition scientist Charlotte Steinberg – for DNA analysis, and all of which will be studied for remains of prey animals.

Two people looking at bagged wolf scat samples.
Expedition scientist Charlotte Steinberg (left) assessing scat samples with local wolf ambassador Kenny Kenner.

The wolf expedition in 2025

From 5 to 18 July 2025, nineteen citizen scientists gathered wolf evidence in support of the state’s official wolf monitoring programme. Some participants came from Germany and its neighbouring countries, as well as the UK and Spain, but there were also participants from North America, Australia, Oman and Brazil.

A group of people standing in front of a house
One of the two 2025 expedition teams
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2025 round-up: Mountain ghost takes centre stage at snow leopard expedition

A snow leopard on a ridge caught by a camera trap in black and white
The mountain ghost caught on camera trap on a Biosphere Expeditions snow leopard conservation expedition

The snow leopard (Panthera uncia) is an iconic large cat native to the mountain ranges of Central and South Asia. It is listed as Vulnerable on the IUCN Red List because the global population is estimated to number fewer than 10,000 mature individuals and is expected to decline by about 10% by 2040.

Working in snow leopard conservation since 2003

Biosphere Expeditions has worked in snow leopard conservation since 2003. This makes it one of the longest-running initiatives organised by Biosphere Expeditions and one of the most extended research projects on snow leopards ever conducted.

Initially, expeditions were based in the Altai mountain range in Russia from 2003 to 2011, where we utilised sign rates and sightings for species recordings to confirm snow leopard presence, which contributed to the establishment of Saylyugemsky National Park – just one of many achievements that Biosphere Expeditions has racked up over the years.

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Rest alone isn’t enough: How conservation volunteering can aid burnout recovery

A scuba diver swimming above a coral reef with a tape measure showing between the coral
Diving and contributing to protecting some of the most beautiful reefs in the world as a way to aid burnout recovery.

Some days, exhaustion feels deeper than the muscles or sleep you’ve lost. You can sleep, take a holiday, work out regularly, or binge-watch your favourite shows and still wake up feeling flat. 

Burnout is rarely solved by rest alone. It’s emotional depletion, loss of motivation, and a sense that what you do no longer matters.

After the holidays or during any major life transition many people feel this more acutely. Returning to work, routines and obligations, or questioning what comes next, can feel surprisingly flat, even after a “restful” break. That’s because burnout is often about disconnection from purpose, not just physical fatigue.

Conservation volunteering provides purpose

For many who join a Biosphere Expeditions project, the shift doesn’t start with rest. It begins with purpose.

Volunteering expeditions with a clear focus on wildlife conservation provide structure, shared goals and opportunities for all skill levels to contribute meaningfully. 

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‘Being on expedition was incredible, a real revelation, that gave my life path an unexpected turn.’


Shaha Hashim is a pioneer in the conservation movement in the Maldives. Her passion started at a young age when she “was lucky enough to be selected for the school snorkelling club where I witnessed the vibrant beauty of the corals before the 1998 bleaching event devastated over 90% of them.”

Many corals have grown back since and Shaha never lost her dedication to them. In 2014 Shaha joined Biosphere Expeditions, an international non-profit citizen science organisation, which supercharged her conservation career.

Shaha Hashim nowadays
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Volunteering Abroad for Wildlife Conservation: What Should You Expect?

4 people looking at a herd of elephants at sunset
Elephants right outside our camp while volunteering in Malawi

Are you thinking about volunteering abroad and interested in wildlife conservation?

Whether you want to help monitor whales, survey coral reefs, or support wildlife researchers in remote national parks, these volunteer projects offer the chance to contribute to real conservation work while experiencing a destination in a much deeper way.

But, volunteering abroad is very different from a typical holiday.

In this article I’ll walk you through what wildlife volunteering actually involves, what daily life looks like, and how to know if it’s the right fit for you.

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South Africa: Expedition with Dr Alan Lee returning in 2026

We are delighted to once again collaborate. with Dr. Alan Lee as the expedition scientist. After successful expeditions with him to the Peru Amazon from 2011 to 2016 and South Africa from 2015 to 2017, we will be back with him in his native South Africa on an expedition entitled “Much more than just leopards: Surveying biodiversity in the Cape Floral Kingdom of the fynbos mountains of South Africa.”

Dr. Alan Lee

This expedition will focus on documenting biodiversity in the western Baviaanskloof wilderness area, with a particular focus on threatened and elusive Endangered mammals such as the riverine rabbit and Cape leopard, as well as birds and other fauna recorded through Coordinated Avifaunal Roadcount (CAR) transects. The work supports long-term monitoring obligations within the Cape Floral Kingdom (fynbos), a UNESCO World Heritage Site renowned for its exceptional biodiversity.

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‘Seeing the world with different eyes’


‘I wanted to have an impact on protecting nature,’ says Angelika Krimmel from Germany, reflecting on what drew her to her first expedition with Biosphere Expeditions.

That first experience was in 2016, studying whales and dolphins in the Azores. It wasn’t long before Angelika found herself coming back again and again – to Slovakia in 2017 to monitor lynx, bear and wolf; to Kyrgyzstan in 2019 and 2024 for snow leopard research; and to Kenya in 2023 for African biodiversity conservation.

Whales, paw prints and camera traps

Each project offered something unforgettable. “After a week with the whales, you think nothing can top the first sight of one. But then a curious sperm whale swam alongside our boat, jumped three times and looked straight into our eyes. That look went directly to my heart.”

Angelika (yellow circle) with her 2016 Azores expedition team
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Maldives: Hope

Update from our Maldives coral reef and whale shark expedition

We have found some hope in the gloom. The last reef we assessed, was – in the words of Simon, our expedition scientist – “what a reef should look like”. Great coral cover, quite a few fish, almost no bleaching and very little coral disease. So the expedition ended on a high, as well as some outstanding karaoke, especially from the crew, who had some impressive dance moves in store.

In between the weather tried to thwart us, but we are undeterred, dodging and weaving the squalls, laughing at the sheets of rain and delighting in the sunshine.

We checked lots of reefs like clockwork. And this is exactly what makes an expedition: a journey with a purpose. Our purpose was assessing reef health, revisiting sites and continuing to add to what is now an impressive 12-year database.

Thank you, expeditioners – none of this would exist without you. We hope we also brought some clarity to your own purpose and thinking during what was an all-round very successful expedition.

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