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Home > Public affairs > Press > Press releases

Press releases

Press releases are posted here only after any embargo period has passed. Journalists can access embargoed BES press releases at AlphaGalileo or by contacting Becky Allen, BES Press Officer, email: beckyallen@ntlworld.com.

12 November 2008
Fiddler crabs reveal honesty is not always the best policy
Dishonesty may be more widespread in the animal kingdom than previously thought. A team of Australian ecologists has discovered that some male fiddler crabs “lie” about their fighting ability by growing claws that look strong and powerful but are in fact weak and puny. Published this week in the British Ecological Society's journal Functional Ecology, the study is the first direct evidence that crabs “bluff” about their fighting ability.

1 October 2008
Ecologists allay fears for farmland birds from wind turbines
Wind farms pose less of a threat to farmland birds than previously feared, new research has found. The study, published this week in the British Ecological Society's Journal of Applied Ecology, helps resolve a potentially major environmental conflict: how to meet renewable energy targets at the same time as reversing dramatic declines in biodiversity on European farmland.

4 September 2008
"Bar-coding” midges could help prevent spread of bluetongue in the UK
Ecologists have developed a new technique for genetically “bar-coding” biting midges that could help prevent the spread of bluetongue – a serious animal disease – in the UK. Speaking at the British Ecological Society’s Annual Meeting at Imperial College, London, Jane DeGabriel of the University of Aberdeen will explain how the technique will plug a huge gap in our understanding of how midges might spread bluetongue in the UK.

3 September 2008
Artificial meadows and robot spiders reveal secret life of bees
Many animals learn to avoid being eaten by predators. Now ecologists have discovered that bumblebees can even learn to outwit colour-changing crab spiders. Dr Tom Ings of Queen Mary, University of London will tell the British Ecological Society's Annual Meeting at Imperial College, London about how he and his colleague Professor Lars Chittka reached this conclusion using an artificial meadow containing robotic crab spiders.

3 September 2008
Ecologists search for invasive ladybird’s weak spot
Ecologists have discovered that – as well as being larger, hungrier and more aggressive than most British native ladybirds - the invasive alien harlequin ladybird is also more resistant to fungal disease and a parasitic wasp, two common natural enemies of native ladybirds. Speaking at the British Ecological Society's Annual Meeting at Imperial College, London, Dr Helen Roy from the Centre for Ecology & Hydrology will explain how this resistance to parasites is aiding the harlequin's spread in the UK and how the results are helping researchers home in on its weak spot.

12 August 2008
Scientists call for trial of “hen harrier ceiling”
As the grouse shooting season gets under way, two scientists involved in high-profile studies of hen harriers and red grouse at Langholm Moor in Scotland have called for field trials of a “ceiling” on harrier numbers in an attempt to end the long running conflict between conservationists and grouse managers. In a new paper published in the British Ecological Society's Journal of Applied Ecology, Dr Simon Thirgood and Professor Steve Redpath from the Aberdeen Centre for Environmental Sustainability (ACES) suggest the most effective way of improving the conservation status of harriers on grouse moors might be to apply local “ceilings” to the number of breeding birds.

9 July 2008
Biofuel and biodiversity don't mix, ecologists warn
Rising demand for palm oil will decimate biodiversity unless producers and politicians can work together to preserve as much remaining natural forest as possible, ecologists have warned. A new study of the potential ecological impact of various management strategies published in the British Ecological Society's Journal of Applied Ecology found that very little can be done to make palm oil plantations more hospitable for local birds and butterflies. The findings have major implications for the booming market in biofuels and its impact on biodiversity.

18 June 2008
It's the way you say it: how using the right words can cut environmental conflicts
Ecologists have developed a new “tool” that could in future help prevent costly and acrimonious environmental conflicts such as campaigns against culling problem populations of charismatic animals and arguments over genetically modified organisms. The tool, published online this week in the British Ecological Society's Journal of Applied Ecology, involves a novel use of computer-aided content analysis and is based on the recent environmental conflict surrounding hedgehog culling on the Outer Hebrides in Scotland.

6 May 2008
Ecologists tease out private lives of plants and their pollinators
The quality of pollen a plant produces is closely tied to its sexual habits, ecologists have discovered. As well as helping explain the evolution of such intimate relationships between plants and pollinators, the study – one of the first of its kind and published online in the British Ecological Society's journal Functional Ecology – also helps explain the recent dramatic decline in certain bumblebee species found in the shrinking areas of species-rich chalk grasslands and hay meadows across Northern Europe.

1 April 2008
Feathered friends favour fruity flavonoids
Fruit-eating birds actively select fruit with the highest concentrations of antioxidants – compounds that help them maintain a healthy immune system – ecologists have found. This is the first time that a group of antioxidants known as flavonoids have been found to boost the immune system in studies on living animals, as opposed to test-tube studies. The results are published online in the British Ecological Society’s Functional Ecology.

20 March 2008
Spotting the next GM-like controversy before it happens
Environmental scientists and policy makers have drawn up a list of the 25 new and most pressing issues likely to affect biodiversity in the UK between now and 2050. As well as highlighting areas where research effort should be focused, the exercise shows how "horizon scanning" could help us foresee issues that have taken scientists and policy makers by surprise in the past, such as the UK public's response to genetically modified crops.

3 March 2008
Ski tourism stressing capercaillie
Ski tourism is raising stress levels among capercaillie, which could harm the birds’ fitness and ability to breed successfully, ecologists have found. Writing in the British Ecological Society’s Journal of Applied Ecology, researchers warn that forests should be kept free from tourism infrastructure if they are inhabited by capercaillie - a species whose numbers are declining markedly across central Europe.

30 October 2007
Ecologists uncover links between fever and living fast, dying young
Fever is an effective defence against disease, but new research suggests that not all animals use it when exposed to infection. The study, published online in the British Ecological Society’s journal Functional Ecology, found large differences in fever responses among closely related species of mice and suggests that an animal’s reproductive strategy could explain some of this intriguing variation.

21 September 2007
Biodiversity in the New Forest
The New Forest is teeming with natural plant and wildlife but ecologists know surprisingly little about the status and distribution of species within the UK's newest National Park. This fact has led experts from the British Ecological Society, Bournemouth University, the Forestry Commission and the National Park Authority to convene a major conference on Biodiversity in the New Forest next week (25th & 26th September - Balmer Lawn Hotel, Brockenhurst).

4 September 2007
Ecologists get to the bottom of why bears rub trees
Ecologists have at last got to the bottom of why bears rub trees – and it's not because they have itchy backs. Speaking at the British Ecological Society's Annual Meeting in Glasgow next week, Dr Owen Nevin of the University of Cumbria will reveal that adult male grizzly bears use so-called “rub trees” as a way to communicate with each other while looking for breeding females, and that this behaviour could help reduce battles between the bears.

6 August 2007
Why nectar-feeding bats need a “power drink” to fly
Nectar-feeding bats burn sugar faster than any other mammal on Earth – and three times faster than even top-class athletes – ecologists have discovered. The findings, published online in the British Ecological Society's journal Functional Ecology, illustrate that because they live life on an energetic knife edge, these bats are very vulnerable to any changes in their environment that interrupt their fuel supply for even a short period.

23 July 2007
Bumblebees make bee line for gardens, National Bumblebee Nest Survey finds
Britain's gardens are vital habitats for nesting bumblebees, new research has found. The results come from the National Bumblebee Nest Survey, which are published online in the British Ecological Society's Journal of Applied Ecology, and the findings will help conservationists understand – and hopefully address – the factors responsible for declining bumblebee populations.

11 July 2007
Brightly coloured birds most affected by Chernobyl radiation
Brightly coloured birds are among the species most adversely affected by the high levels of radiation around the Chernobyl nuclear plant, ecologists have discovered. The findings - published online in the British Ecological Society's Journal of Applied Ecology - help explain why some species are harder hit by ionising radiation than others.

13 June 2007
Plight of the Monarch butterfly
To celebrate his 75th year and mark his more than 50 years' research on the Monarch butterfly, Professor Lincoln Brower will be speaking at two special events on Wednesday 27 June 2007 at the Natural History Museum and Thursday 28 June 2007 at the Linnean Society of London.

12 February 2007
How badger culling creates conditions for spread of bovine TB
A stable social structure may help control the spread of bovine tuberculosis (TB) among badgers, ecologists have found. The findings – published online in the British Ecological Society's Journal of Animal Ecology – have important implications for the role of badger culling as part of the strategy to control bovine TB in the UK.

17 January 2007
Alpine bird numbers on the slide due to high-altitude ski runs
High-altitude ski runs are seriously affecting Alpine birds, ecologists have found for the first time. Writing in the January issue of the Journal of Applied Ecology, Italian ecologists warn that ski pistes above the tree line result in fewer species and lower numbers of birds compared with natural grassland at similar altitudes. Ski developers should use new, environmentally-friendly techniques when constructing pistes in future, they say.

12 December 2006
Frankincense trees overexploited for Christmas scent
Current rates of tapping frankincense - which according to the Bible was given to the baby Jesus by the three wise men at Christmas and which will feature in thousands of Nativity plays in coming days - are endangering the fragrant resin's sustained production, ecologists have warned. Writing in the December issue of Journal of Applied Ecology, ecologists from the Netherlands and Eritrea say that over tapping the trees results in them producing fewer, less viable seeds.

6 November 2006
BES President wins 2006 Ramon Margalef Ecology Award
Professor Sir John Lawton, president of the British Ecological Society and Chairman of the Royal Commission on Environmental Pollution has won this year's prestigious Ramon Margalef Ecology and Environmental Sciences Award. The award is given by the Catalan Government for outstanding contributions to the science of ecology, and is the most valuable prize in this discipline in the world.

4 September 2006
Climate change could drive beech from south-east England
Ecologists concerned about the impact of climate change on beech trees in the south of England will meet this week to discuss the problem and how conservationists can best respond to it.

30 August 2006
Otters killed on roads shed new light on lead pollution
Otters found dead on our roads are providing important new information on the ecology of this secretive species - and evidence of how successful the ban on lead in petrol has been in reducing levels of lead pollution. Speaking at the British Ecological Society's Annual Meeting next week, Dr Liz Chadwick of Cardiff University's Otter Project will report the results of collaborative research with Cornwall's Wildlife Veterinary Investigation Project. Both have been conducting post mortems on otters killed by cars and reported by members of the public since 1992, in an initiative funded by the Environment Agency.

29 August 2006
Ecologists call for renewed efforts to restore Iraq marshes
Without adequate water, further funding and an improvement in the security situation, the continued ecological recovery of the Iraq marshes is in doubt, ecologists will tell the British Ecological Society's Annual Meeting next week.

15 August 2006
Vultures at risk from deadly traces of pain killer
Asian vultures are at risk of lethal kidney failure if they feed from carcasses of a cow that died up to four days after treatment with the anti-inflammatory drug diclofenac. Writing in the new issue of the Journal of Applied Ecology, Dr Rhys Green of the Royal Society for the Protection of Birds and University of Cambridge says: "Our study demonstrates that diclofenac concentrations in the tissues of treated cattle decline rapidly with time after the last injection. However, enough diclofenac remains to cause appreciable mortality (more than 10%) if birds were to take a large meal from the carcass of an animal that was given its last dose of the drug within a few days of death."

7 June 2006
Policy makers draw up list of “top 100” ecological questions
Environmental policy makers have come up with a list of the “top 100” ecological questions most in need of an answer. The list, published online in the British Ecological Society's Journal of Applied Ecology, is the result of an innovative experiment involving more than 600 environmental policy makers and academics, and includes crucial questions such as which UK habitats and species might be lost completely due to climate change, and what are the comparative biodiversity impacts of newly emerging types of renewable energy? The list should help bridge the gap between science and policy that exists in many disciplines - including ecology - and could therefore have a major impact on future ecological research and its funding.

24 May 2006
Farm animals keep vole army at bay
Giving a mix of farm animals a controlled 'right to roam' will help to improve biodiversity and solve a vole conservation dilemma in upland Britain, according to new research published today in the Journal of Applied Ecology.

23 May 2006
Ecologists home in on how sperm whales find their prey
Ecologists have at last got a view of sperm whales' behaviour during their long, deep dives, thanks to the use of recently developed electronic “dtags”. According to new research published in the British Ecological Society's Journal of Animal Ecology, sperm whales – like bats – use echolocation consistently to track down their prey at depth.

7 May 2006
Learning the lessons of the world's oldest ecological experiment
Ecologists are getting ready to celebrate the 150th anniversary of the world's oldest ecological experiment. The Park Grass Experiment was set up at Rothamsted Research in Hertfordshire in 1856 – three years before Darwin published Origin of Species – to answer crucial agricultural questions of the day but has since proved an invaluable resource for studying natural selection and biodiversity. To mark the occasion, a major review of Park Grass is published today in the British Ecological Society's Journal of Ecology, and on 22nd-24th May 2006 Rothamsted Research is hosting an international symposium exploring the unique value of long-term ecological research.

7 April 2006
“Laurel and Hardy effect” spells good news for captive breeding
Animals bred in captivity for reintroduction to the wild are able to retain their defences against predators for several generations, ecologists have found. According to new research published in the British Ecological Society's Journal of Applied Ecology, tadpoles of the Mallorcan midwife toad (Alytes muletensis) retain their ability to change their body shape – a defence they have evolved in the face of predators – even after being bred in captivity for three to eight generations. The results have important implications for conserving endangered species through captive breeding programmes.

28 February 2006
Ecologists explain why the world is green
Hydroelectric schemes usually generate a barrage of criticism from conservationists. But the flooding of a Venezuelan valley 20 years ago has provided ecologists with the ideal outdoor laboratory to answer one of ecology's oldest and thorniest questions: why is the world green? Reporting their results in the March issue of the British Ecological Society's Journal of Ecology, a team lead by Professor John Terborgh of Duke University says that the role of predators is the key to keeping the world green, because they keep the numbers of plant-eating herbivores under control. Their results support the so-called “green world hypothesis” first proposed in 1960 by Hairston, Smith and Slobodkin and seem to lay to rest the competing theory that plants protect themselves from being eaten through the physical and chemical defences they have developed.

14 February 2006
Spring migration of pink-footed geese under threat
As thousands of pink-footed geese (Anser brachyrhynchus) prepare for their spring migration north to breeding grounds in the Arctic, ecologists are warning that the escalating conflict between farmers and the geese is threatening the birds' survival. Writing in the new issue of the British Ecological Society's Journal of Applied Ecology, Professor Marcel Klaassen of the Netherlands Institute of Ecology says that international action is urgently required.

16 January 2006
British Ecological Society sets up £500,000 fund for ecology in Africa and Eastern Europe
The British Ecological Society has set up an innovative new fund designed to build capacity in ecological science in Africa and Eastern Europe. The Building Capacity for Ecology Fund will make £500,000 available over five years to support the establishment and development of ecological societies in Africa and Eastern Europe.

12 January 2006
Cracking open ecological secrets of museum egg collections
Swansea University ecologist Dr Patricia Lee has won a British Ecological Society (BES) grant to unlock the secrets of the millions of eggs held in museum collections worldwide.

14 December 2005
Researchers explain why badger culling fails to control cattle TB
Researchers have discovered the most likely reason why localised culling of badgers (Meles meles) has failed to control bovine tuberculosis (TB) in British cattle. Published online by the British Ecological Society's Journal of Applied Ecology, the study reveals that even though culling reduces badger population density, it alters their behaviour in such a way as to increase spread of the disease. The findings have major implications for future strategies to control TB in cattle.

13 December 2005
BES grant to study plight of the bumblebee
University of Stirling ecologist Professor Dave Goulson has won a British Ecological Society (BES) grant to uncover the causes of the dramatic decline in certain bumblebee (Bombus) species in the UK.

30 November 2005
Bird song changes sound alarm over habitat fragmentation
Changes in bird song could be used as an early warning system to detect man-made ecological disturbances, new research published in the British Ecological Society's Journal of Applied Ecology has found. Although much previous research has focused on bird song and vocal mimicry, this is the first study to analyse the role played by habitat loss and fragmentation on song-matching.

5 October 2005
Why a whale shark's spots could help save its skin
Computer software developed by astrophysicists to locate stars and galaxies in the night sky could help save the whale shark - whose spotted skin is like a starry sky - from extinction, according to new research published in the British Ecological Society's Journal of Applied Ecology.

3 October 2005
Flying in the face of climate change
In 75 years' time, the UK could be plagued by fly populations 250% up on today's levels if forecasts of climate change prove accurate, ecologists have warned. Writing in a special climate change issue of the British Ecological Society's Journal of Applied Ecology, Dave Goulson and colleagues from the University of Southampton found that if the worst case scenario for climate change occurs - a 5 deg C rise in temperature by 2080 - house fly numbers in the UK could explode.

26 August 2005
Ecologists get back to their roots in Sussex
Top British ecologists will gather at Kingley Vale Nature Reserve in West Sussex on Tuesday 30 August to celebrate the life and work of Sir Arthur G. Tansley, widely regarded as the father of modern ecology and one of the 20th century's most important conservationists. The event coincides with the 50th anniversary of Tansley's death in 1955.

11 August 2005
Badger culls must be based on sound science, researchers say
Researchers have urged policy makers to field test any new strategy to control the spread of TB between badgers and cattle. The recommendation comes in a new study published in the British Ecological Society's Journal of Applied Ecology that reveals evidence of a close spatial association between bovine tuberculosis (TB) in badgers and cattle.

10 August 2005
Ecology must be part of research on renewable energy
Too little of the research being done on renewable energy options is taking potential ecological implications into account, a major new review of the ecological implications of offshore renewable energy published in the British Ecological Society's Journal of Applied Ecology has found.

21 July 2005
Plankton can run, but can't hide from basking sharks
Basking sharks are much more canny predators than previously thought, ecologists have discovered. According to new research published online by the British Ecological Society's Journal of Animal Ecology, basking sharks are able to reverse their normal pattern of diving at dawn and surfacing at dusk in order to foil the attempts of zooplankton trying to evade capture. As well as shedding new light on basking behaviour, the results have important implications for the conservation of shark species.

5 July 2005
Ecologists urge action on climate change
The British Ecological Society supports the UK government’s initiative during its G8 Presidency to get world leaders to set out a clear direction for political action on climate change, based on the clear scientific evidence for climate change and its impacts.

17 June 2005
Vietnam war technology could aid elephant conservation
Seismic sensors developed to track enemy troop movements during the Vietnam war could help ecologists monitor and conserve elephant populations, according to new research published in the British Ecological Society's Journal of Applied Ecology.

17 June 2005
Logging leads to rise in primate parasite infection
Increased rates of parasitic infection could be contributing to the decline in populations of certain primate species, ecologists have discovered. The research, published online by the British Ecological Society's Journal of Applied Ecology, sheds new light on the way in which habitat destruction can affect primate populations and hence has important implications for primate conservation.

17 June 2005
Rare chalk grassland takes 50 years to recover from military use
Rare and fragmented chalk grasslands may take at least half a century to recover from the damage done to them by military training, according to new research published in the British Ecological Society's Journal of Applied Ecology.

18 April 2005
Taking the piste out of alpine vegetation
Major changes need to be made to the way ski pistes are managed if delicate alpine plants are to be protected, ecologists have warned. According to new research published today in the British Ecological Society's Journal of Applied Ecology, machine grading and artificial snow production is causing significant changes in the number and type of plant species in the European Alps.

18 April 2005
Putting ecology back into river restoration
An ambitious plan is under way in the ecological community to agree a set of standards for ecologically successful river restoration. The plan is being led by the British Ecological Society's Journal of Applied Ecology, which this month is publishing a special profile on river restoration. Opening the debate is a paper by 22 leading US river ecologists proposing five criteria for ecologically successful river restoration. Their aim is to arrive at an agreed set of standards which would eventually be endorsed by the United Nations Environment Programme.

28 February 2005
Internet viruses help ecologists control invasive species
Studying how computer viruses spread through the internet is helping ecologists to prevent invasions of non-native species. New research published today in the British Ecological Society's Journal of Applied Ecology, describes the use of network theory to predict how the spiny water flea - a native of Russia - will spread through the Canadian lake system.

28 February 2005
Radio-tracking associated with “dramatic shift” in water vole sex ratio
Wildlife researchers are being warned that radio-tracking could be affecting the animals they are studying. According to new research published today in the British Ecological Society's Journal of Applied Ecology, fitting radio-collars to water voles was associated with a “dramatic shift” in the sex ratio of the animals’ offspring, casting doubt on the assumption that radio-tracking does not fundamentally affect the biology of radio-collared water voles.

10 February 2005
BES calls on government to champion outdoor education
The British Ecological Society has welcomed the Education and Skills Committee report on Education Outside the Classroom, published today. The BES sees education fieldwork as an important - but undervalued - component of science education. The Committee made several recommendations which, if adopted by the government, will help redress the recent decline in outdoor education, the BES believes.

13 January 2005
Ecologists see the primeval wood for the trees
Ancient woodlands in Europe may have been remarkably similar to the dense, dark forests of ancient folklore according to a paper published today in the British Ecological Society's Journal of Ecology.

8 December 2004
Ecologists give evidence to climate change inquiry
The UK should use its presidency of the G8 and EU to move forward international action to analyse future risks due to climate change and develop and implement evidence-based adaptation strategies for coping with the immediate impacts of climate change, the British Ecological Society has urged. Giving evidence to the House of Commons Environment, Food and Rural Affairs Committee on Wednesday 8 December 2004, Professor Alastair Fitter of York University and president of the British Ecological Society told the committee: “The current rate of anthropogenic climate change is exceptional and will have numerous impacts on biodiversity and ecosystems, interacting with other anthropogenic changes such as invasive species, habitat fragmentation, and nitrogen deposition to create synergistic effects.”

3 December 2004
Kittiwake-up call on sandeel fisheries and climate change
Populations of the black-legged kittiwake will not recover unless the commercial sandeel fishery off the east coast of Scotland and north-east England remains closed indefinitely, ecologists have said. The stark warning comes from a paper published today in the British Ecological Society's Journal of Applied Ecology. It is the first study to examine the combined effects of oceanography and fisheries on a North Sea seabird.

2 November 2004
Outdoor education key to tackling future climate change
Without making outdoor education a statutory part of every child's schooling, the government risks undermining its ability to tackle important environmental issues such as climate change, the British Ecological Society has warned.

1 October 2004
Time running out for South Asian vultures, ecologists warn
Ecologists are calling on South Asian governments to ban veterinary use of the anti-inflammatory drug diclofenac. Without banning use of the drug in livestock species likely to be eaten by vultures - mainly cattle and buffalo - three species of vulture in the Indian subcontinent are likely to become extinct.

1 September 2004
Agri-environment schemes provide greater choice for winter birds
Hedges on farms that are part of an agri-environment scheme contain more berry-producing species than those not in schemes, ecologists have found. Speaking at the British Ecological Society's Annual Meeting taking place at Lancaster University on 7-9 September 2004, ecologists from the Centre for Ecology and Hydrology in Lancaster will report that fruit from certain hedgerow species can remain an important food source for birds until Christmas if hedges remain unmanaged, and that agri-environment schemes may have more of an impact on how farmers manage their hedges than whether they farm organically or conventionally.

1 September 2004
Dung beetles on the horns of a dilemma
One of the first studies to demonstrate an ecological link with the presence or absence of a secondary sexual trait will be presented at the British Ecological Society's Annual Meeting taking place at Lancaster University on 7-9 September 2004.

1 September 2004
Cheating in nature: why rotting food could hold the key
From salting and drying to pickling and irradiating, humans have devised many ingenious ways of preserving their food from spoilage by microbes. The question of what microbes gain from making food go off in the first place has attracted less attention, but research presented at this years British Ecological Society Annual Meeting will shed new light on the problem.

1 September 2004
Ecologists uncover biological benefits of sleeping around
Females have traditionally been viewed as the choosy, monogamous sex compared to males, but recent genetic studies have revealed that females of many, if not most, animal species also mate multiply with different partners. However, understanding why females should do this has remained something of enigma.

27 July 2004
Counting foxes before the last tally-ho
As the government promises an imminent ban on hunting, researchers have produced the first scientifically-based population estimate for foxes living in Britain. Their results show that the number of foxes has remained constant despite changes in culling methods. The study, published in the British Ecological Society's Journal of Applied Ecology today and funded by the International Fund For Animal Welfare (IFAW), shows that at the end of winter there are 225,000 adult foxes living in rural Britain, with a further 33,000 in urban areas.

27 July 2004
Ecologists help keep death off the roads
Far fewer animals would be killed on the roads if planners took the findings of new research into account when designing and building new roads. According to a study published today in the British Ecological Society's Journal of Applied Ecology, it is possible to predict where most animals will attempt to cross roads, and hence where they are most likely to be killed by vehicles.

23 July 2004
The fall and rise of forest ecosystems
Forest ecologists have long wondered why forests decline in the absence of catastrophic disturbances. A new study, in part funded by the British Ecological Society, and published in this week's Science, has shed new light on this problem.