Europe - "One
last chance"
WWF-UK say that there is one last chance for Europe to
save its threatened species.
It has named ten species under threat in Europe - and
warned that Europe has one last chance to save these and
other endangered species. The species concerned - the
Iberian Lynx, the brown bear, the Harbour Porpoise, the
Monk Seal, the Loggerhead Sea Turtle, the Freshwater
Mussel, the Atlantic Salmon, the Marsh Fritillary
Butterfly, Lady's Slipper Orchid and the Corncrake - are
all at risk from the modern world and needing protection
from the Habitats Directive.
"Every endangered species in Europe is supposed
to be protected under an excellent European nature
conservation law agreed in 1992," said Tony Long,
Director of WWF's European Policy Office. "But the
nations of the European Union have broken every deadline
for putting the law, the Habitats Directive, into
practice.
"The Directive was supposed to become national
law in all EU countries in 1994 but has still not been
correctly put onto the statute book in any country. Sites
for protection under the Directive were due to be
proposed by EU countries in 1995 but at least three
countries have still to submit a full proposal including
Germany. All countries have been asked by the European
Commission to propose more sites. Not one EU country has
met the requirements of the Directive. "The
Directive can protect the habitats which many of Europe's
rare species depend on. It is the last chance for many of
Europe's endangered species," says Tony Long. "WWF
is issuing an alert. European governments must act now."
Rebecca May of WWF says: "Those governments need
to get cracking and submit their lists of proposed sites
by about June this year. There is not an unlimited time
allowed under the directive for designating SACs, and the
meeting to decide which will be approved is being held in
October. It's in that sense that we are saying this is
the last chance for the 10 species. The October meeting
will be the last opportunity to designate the sites."
Lords
report calls for conservation action
'Can do better' is the verdict of a
House of Lords report on the progress of wildlife
conservation in Britain. The report, the product of a
Select Committee investigation into the way European
legislation impacts on Britain, was published recently
and contains some astringent criticism of the way
government wildlife conservation measures have been
performing.
It notes that 'agri-environment budgets
would need to grow between three or four times to equate
to the spend of the median group of Member States.' That
is, we spend only a quarter of the European average on
conservation in the countryside. It also confirms the
damage that overgrazing is doing in the uplands:
'Overgrazing in the uplands in particular should be the
subject of a major review, with a view to bringing hill
livestock numbers and management into line with the
carrying capacity of semi-natural habitats.' There is a
need to promote wildlife conservation, not only within
designated sites but across the wider landscape. The
Lords 'recommend that MAFF and the relevant devolved
administrations consider such a programme, applicable to
all farmers, to improve and reward positive management,
and to prevent the further loss of habitats and species
in the countryside.'
The Lords feel that the lack of
adequate data is a major restriction on conservation
efforts. Within Britain there is need for a central body:
'A central biodiversity policy unit (building on the
existing UK BAP process) charged with monitoring and
reporting on progress with the UK BAP should be
established, with the task of reporting to both Houses of
Parliament, to the Scottish Parliament and to the Welsh
and Northern Ireland Assemblies.' And data to assess the
success or otherwise of the Natura 2000 network are
justnot available - 'We agree with JNCC that the
percentage of national territory is not the best measure
of a Member State's approach to site designation. Rather
it should be considered as the percentage of the relevant
habitat (or species) present in the State which is
protected within the Natura 2000 network. These data are
not currently available for the UK. In view of their
importance JNCC should make these data publicly available
in due course.'
And at present there are no guidelines
as to how much of our wildlife we should be protecting.
'Greater thought should be given to the percentage of a
protected species' national population or a listed
habitat which should be included in areas classified as
SPA or SAC. The JNCC considered that 50 per cent (as used
by WWF) was an arbitrary figure, but it does not appear
to have its own targets. Such targets need to be set, not
only to determine whether more SPAs or SACs that should
be classified, but also to identify the effort and
resources required to address the needs of these
protected habitats and species in the wider countryside.'
One of the most potentially profitable
recommendations made by the Lords relates to the
increasing realisation that the protection of our
wildlife demands more than just SSSI designation. Such
sites may be surrounded by hostile industrial farming
environments which prevent the continuation of viable
populations. They suggest that an SSSI should be at the
core of a larger wildlife area: 'We see considerable
merit in declaring an enlarged area as SPA or SAC around
a core SSSI to incorporate these essential feeding or
nesting places within the boundary of the European site.
This would ensure that the conservation interest is
properly recognised within the planning system and by all
competent authorities. This larger area could also
qualify for enhanced payments under the agri-environment
programme to aid its positive management.'
There is a need for legal backing for
the biodiversity process. Without this, the Lords say,
planning and policy-making are clouded: 'We therefore
recommend that the Biodiversity Action Plan process is
put on a statutory basis so that it can be accorded
proper weight in decisions taken by local authorities and
statutory nature conservation agencies, and at the level
of policy and plan-making in each of the constituent
parts of the UK. This could be reinforced by acceptance
on the part of central and devolved government and their
statutory agencies of an explicit collective
responsibility for furthering the conservation of
biodiversity.'
The marine environment has been
particularly badly served by conservation law: '... we
remain to be convinced that SPAs and SACs classified in
the marine environment will receive adequate statutory
protection. The process of identifying and classifying
such areas is still at an early stage but greater clarity
as to how such areas will be managed (and by whom) and
protected from inappropriate use is required in domestic
law ... We believe that a new approach to protect sites
in the marine environment is now required. The time has
come to review the relevant provisions of the Wildlife
and Countryside Act. Better legislation to provide
workable and effective protection for important areas of
nature conservation interest in the marine environment is
needed as a matter of urgency.'
Mr Meacher evidently has much to do in
drafting the new Countryside Act.
Select Committee on European Communities Twenty-Second
Report
Butterflies
follow wildflowers into extinction
The results of the 'Butterflies For The
New Millennium' survey, published recently, suggest that
Britain's butterflies are headed for an uncertain future.
Whilst a few species are increasing their ranges, others
are dying out.
During the last century of the second
millennium Britain lost almost all its flower-rich
grasslands - 97 per cent have disappeared, due to
changing agricultural practices. Many butterflies are
specialist species of chalk downs, open heather, damp
meadows, and other habitats which have suffered from
agricultural development. The high brown fritillary, Argynnis
adippe, for instance, has been lost from 94%of its
known range, due to changes in grazing of bracken and
reduced coppicing; the silver-spotted skipper, Hesperia
comma, has suffered from improvement of calcareous
grasslands and is now extinct throughout 89% of its
historic range. Richard Fox, of the charity Butterfly
Conservation, said: "Many species are increasingly
restricted to small, isolated areas."
"We are now sitting on a bio-diversity
timebomb. The potential effects of global warming will
simply accentuate these problems. In short, the prognosis
for large proportions of our butterflies is not good."
The five-year project, started in 1995
and preliminary results are now available. The black-veined
white is the main loser from a century of butterfly
observation, but the high-brown fritillary has suffered
the biggest losses over the past 50 years. Four species
have become extinct in Britain and populations of more
than 30 have declined substantially.
A small number of butterflies are
thriving, however - even expanding their populations. The
Essex skipper, Thymelicus lineola, has more than
doubled its range in the past 20 years, rapidly expanding
north and west from its stronghold in the South of
England; the speckled wood, Pararge aegeria, has
actually benefitted from less coppicing to expand from
southern England strongholds into North, Midlands and
East Anglia, as has the white admiral, Limenitis
camilla.
Butterflies for the New Millennium
Butterfly conservation
British Butterfly Conservation website
300,000 dead seabirds
- an international tragedy
"UK birds hit by French oil spill"
- but in fact the birds don't know they are British, or
French, and the indiscriminate pollution following the
violent rupture of the Erika, a Maltese-flagged vessel on
hire to the French company Total-Fina, is a supra-national
emergency.
The vessel foundered on December 12th
last year but the initial worries seemed unnecessary
since the wind blew the 10 million litres spillage away
from the land and the news photographers. Unfortunately
the area concerned is just where sea birds go to winter.
The whole of the northern half of the Bay of Biscay,
thousands of square miles of ocean, has become a
whirlpool of pollution. When the wind turned it blew oil
ashore on beaches for 300 miles, from southern Brittany
to the Ile d'Oléron, with smaller slicks arriving as far
south as Spain.
"Usually tanker spills happen
close inshore and devastate a relatively small section of
coastline. The Erika sank a long way offshore and the
winds and currents took the spill out to sea and then
back again," said Michel Métais , president of the
Ligue pour la Protection des Oiseaux (League for the
Protection of Birds). "The birds which live far out
to sea, guillemots especially, but also puffins and
razorbills, have been massacred. Shore birds can always
fly to another, cleaner piece of coastline. Birds of the
open sea do not see the oil until it is too late. Anyway,
the slick has been so scattered that they have nowhere
safe and clean to go."
It is estimated that 10 birds die at sea for
every one that washes ashore. On this basis the 30,000
birds recovered represent a kill of 300,000 sea birds,
mostly guillemots, although razorbills, gannets and
cormorants have also been hit. "We could see from
100,000 to 300,000 birds affected," said an RSPB
spokesman. "We understand there are up to 50
different species being found, although guillemots
account for 75% of all the birds recovered."
"There will be a visible impact on
breeding colonies around the Welsh coast, especially in
Pembrokeshire, and elsewhere in the Irish Sea. The birds
there were just getting over the Sea Empress spill four
years ago. The problem is that the juveniles tend to
overwinter in the Bay of Biscay, exactly where the Erika
was lost. Normally they would be further out to sea, out
of harm's way. But the very severe weather forced them
inshore, along with the oil. So there will be fewer young
birds returning to the nesting ledges, and the breeding
stock will be reduced."
The World Wide Fund for Nature, wants a
comprehensive risk assessment of the European coastline
carried out as a way of trying to prevent further spills.
"Apart from birds, we're concerned about the coastal
habitats that have been affected, and the species that
live in them, things like crustaceans and invertebrates,"
said Dr Sian Pullen of WWF.
"They're near the base of the
marine food chain, which means that fish and birds depend
on them. But we're afraid there may not even be any
monitoring of what is happening to them."
The RSPB has mounting fears over the
seaworthiness of other tankers as the European Commission
has revealed that six, built in the same Japanese
shipyard as the Erika and around the same time, are still
in service and may be in questionable condition. Dr Euan
Dunn, RSPB marine policy officer, said: "It is time
to end a system where oil companies can gamble with
safety at sea and the marine environment by chartering
vessels at the lowest cost they can find. There is an
urgent need for legislation which sets much more rigorous
standards for charter vessels. Oil companies ducking
these standards should face stiff penalties.
Anyone who wants to support the work of
the Ligue pour la Protection des Oiseaux in saving these
birds can make a payment, in sterling, addressed to:
French Oil Disaster, c/o RSPB, The Lodge, Sandy,
Bedfordshire SG19 2DL. The RSPB will pass donations and
details of donors. names and addresses to the LPO so that
they can keep donors informed of progress.
GM trials
endanger organic crops - Soil Association
The Soil Association has commissioned a
study of the likely effects of trialling genetically
modified crops in the same areas as organic farms. The
independent study, by the National Pollen Research Unit,
says that the official rules are inadequate to protect
the organic farms from pollution.
The SCIMAC rules recommend leaving 200
metres around GM crops to isolate them from organic crops
and prevent cross-contamination. But the report says that
contrary to industry recommended isolation distances
"oil seed rape presents a high risk for cross
pollination between source and recipient fields."
It continues: "Pollen dispersal by
insects has been recorded at up to four kilometres - some
20 times higher than the recommended isolation distance -
and three kilometres by air flow."
In Spring official farm-scale trials of
GM sugar beet will begin on hundreds of acres of land,
with just 6 metres between the GM crops and conventional
varieties. The Soil Association believes the current
voluntary code of practice fails to protect producers of
both organic and conventional GM free crops from
pollution.
"Our six mile notification zone
proposals should be accepted immediately as a
precondition for licensing all future trial plants.,"
says Patrick Holden, Soil Association director. "Given
the fact that conventional crops are just as vulnerable
to genetic pollution, we see no reason why this procedure
should not be applied."
A spokesman for the Government's GM
Unit said: "Possible pollen transfer is something
the Government has looked very closely at and continues
to do so."
"We have internationally agreed
separation distances and the Government's top independent
advisers concluded that the risk of pollination beyond
those were minuscule."
Organic
farming - 1999 a boom year
The last year of the old Millennium saw
a boom in interest in organic farming, according to
Countryside Minister Elliot Morley.
More than 1,100 farmers joined up for
organic conversion in 1999, spurred on by the increased
incentives being offered under the Government's new
scheme. Under the previous scheme, only 400 farmers went
organic over a five-year period. £24m has been allocated
to farmers under the scheme. As a result 75,000 hectares
in England will be converted to organic farming. In April
1998, there were just 50,000 hectares being farmed
organically in the whole of the UK.
The increase in organic farming has
been dictated by increasing concern in the British food
market about factory farmed products incorporating
pesticides and possible genetically modified foods.
Consumers in Europe, though not in the USA, have shown
themselves to be concerned to eat natural products. The
repulsion shown when it was found that cows had been
eating unnatural feedstuffs destroyed confidence in the
official foodchain and buyers now look for uncomplicated
food.
"The Government sees this very
much as being the start of a longer process," says
Countryside Minister Elliot Morley. "Under the 'New
Direction for Agriculture', we plan to double the budget
for organic conversion and have earmarked £140m over the
length of the Government's seven year Rural Development
Plan."
Organic farms are better for wildlife.
Much higher percentages of organic farms had 'weedy' or
'very weedy' fields than conventional farms in a 1997
Countryside Commission report. Organic farms were found
to have more recently-planted trees and were more likely
to use crop rotation and have smaller fields than
conventional farms, leading to greater diversity of
wildlife. Grass headlands and predator strips, which
provide safe areas for insects and birds, were found only
on organic farms. Only 50% of conventional farmers had
taken measures to improve their farms for wildlife,
whereas 81% of organic farmers had done so.
Flooding
fields
After this winter's heavy rains, one
could be forgiven for thinking that Britain would have
seen enough flooded farmland for a while. But the
National Trust is considering a major league scheme to
restore large areas of England to their pre-industrial
appearance.
During the twentieth century the
emphasis was on protecting wildlife in nature reserves
but as the century ended biologists were increasingly
concerned that reserves are just not big enough - they
are becoming islands in seas of industrial farmland.
There is no chance of some species exchanging genes to
produce new variants which could cope with changing
circumstances, since they are divided by miles of barren
monoculture.
Adrian Colston, manager of the National Trust's
national nature reserve at Wicken Fen, wants to buy 22
square miles of adjoining Cambridgeshire farmland and
flood it. Wicken is a glorious, 800-acre remnant of one
of the first UK habitats to be almost completely
destroyed - the great primeval fen that once extended 100
miles from Cambridge to beyond Lincoln. It has one of the
largest species lists of any UK reserve - 212 different
spiders, 1,000 moths and 1,700 flies - it is biodiversity
writ large.
Yet it is still failing in the aim to
protect species. Despite maximum legal protection and the
best efforts of the trust, species are steadily
disappearing. A bleak catalogue of losses includes five
out of 19 dragonflies, four of Darwin's beetles, water
vole, Montagu's harrier, marsh warbler, short-eared owl
and 35 flowering plants. A fifth beetle is in jeopardy,
and the list grows longer year by the year.
Wicken was once famous for the
spectacular swallowtail butterfly. Now the only UK
population survives on the Norfolk Broads, 60 miles away.
With Wicken's surrounding fields producing five crops of
lettuce a year and each crop typically sprayed five times
with insecticide, the chances of the swallowtail re-establishing
itself are remote. Centuries of farming and land drainage
have left Wicken 12 feet higher than adjoining land. The
reserve is only saved from drying out by a plastic
membrane buried 12 feet deep, the length of a mile-long
boundary.
Colston believes that bigger reserves
will make wildlife much more sustainable, and the
reserves themselves much more natural. He aims to leave
the control of vegetation to wild cattle and horses. The
process of wildlife management will be reduced, and
natural processes will be allowed to let rip.
"Small is no longer beautiful"
says Colston. "Big is better. Conservationists are
used to dealing with reserves of 35 acres, but they are
too fragile. If a cow dungs in the wrong place or someone
treads on the wrong spot, a rare animal or plant can be
wiped out."
"At present we manage Wicken for a
very specific set of objectives," he says. "But,
having frozen everything in aspic, we're now being told
climate change could cause all the interest to be lost.
With a big area, things can change and we can be much
less rigid."
In the Netherlands' Oostvardersplassen,
a vast and fantastic landscape of reedbeds, marsh and
open water, has drawn exceptional populations of rarities
since its 22 square miles were flooded in the 1960s.
"What strikes you there is the sheer abundance of
everything," Colston says. "Things that were
hanging on by their fingertips have become well
established and sustainable."
The World Wide Fund for Nature has
funded a £20,000 feasibility study to help the Wildlife
Trusts create a second Cambridgeshire super-reserve at
Whittlesey Mere, the last of the big fens. "If a
country like the Netherlands, which is about the size of
East Anglia, can do this, then so can we," says
Derek Moore, the Trusts' conservation director. "You
have to have a vision, and if we're really going to be
serious about biodiversity and the recovery of vanishing
species then we need to stop mucking around with little
patches.
"We'll be able to bring back some
of the species that have disappeared. Some, such as
spoonbills and bitterns, could return naturally, but it
also gives us the chance to reintroduce creatures like
the beaver."
It is not a short-term solution.
Colston is thinking in terms of 100 years; Moore reckons
on 30-50 years for Whittlesey Mere. But they believe that
circumstances are on their side. The value of fenland is
unlikely to stay high because the peat which makes the
fens so productive is vanishing, steadily destroyed by
farming. And as the sea level rises it is unlikely that
government will wish to fund protection measures for the
whole of East Anglia. "There are a lot of
practicalities to sort out and it will take a lot of
money," Colston says. "But we only need one
farmer coming to the end of his career to say 'I fancy
that', and we're on our way."
2000 -
another Silent Spring?
Scientists say that we may well be
facing another environmental disaster like that described
by Rachel Carson in her book 'Silent Spring' in the 1960's.
Only this time it isn't DDT which is to blame - it's rat
poisons.
The modern rodenticide is a chemical
such as difenacoum or bromadialone, which cause rodents
to bleed to death. They were introduced to replace
previous poisons, such as warfarin, after rodents
developed tolerance to them in many parts of the country,
beginning in 1957. They have the undesirable
characteristic of remaining within the body of dead rats
and are more toxic to birds and mammals that eat rodents.
They are producing worrying evidence that animals higher
up the food chains are accumulating poisons within their
bodies.
"In 1983 about five per cent of
barn owls that had been found on road verges contained
second-generation rodenticides," said Dr Richard
Shore of the Institute of Terrestrial Ecology in Monks
Wood, Cambridgeshire. "Now the level is 30 per cent.
More worryingly, in two per cent of samples, the poisons
had been directly responsible for the birds' deaths."
About 45 per cent of a sample of
polecats were found to contain rat poisons. 100 foxes
revealed that 46 had been exposed to rodenticides, and
ten had died directly as a consequence of eating the
poison. About a quarter of weasels and stoats were also
found to be affected. Now the predictable resistance to
modern poisons is appearing.
"A hot spot appeared in north
Berkshire and south Oxfordshire several years ago,"
said Dr Alan MacNicoll of the Ministry of Agriculture's
Central Science Laboratory. "Standard second-generation
poisons simply won't kill rats there any more. And now
resistance has appeared in rats in East Anglia,
Yorkshire, Kent and other areas." Resistant rodents
will eat more poison and will more often deliver a lethal
dose to their predators, which will increase pressure on
threatened species, such as the barn owl.
And farmers will be more likely to turn
to even more powerful rodenticides including toxins like
brodifacoum and flocoumafen. These should only be used by
licensed operstors, indoors, but have already been found
to have been illegally used out of doors. And resistant
rats are a threat to public health - they spread Weil's
disease and salmonella. "It is not impossible to
eradicate resistant rats," said MacNicoll. "We
tackled one farm in Berkshire where current poisons were
no longer effective and managed to get rid of the rats,
firstly by using a different type of rodenticide -
calciferol - and then by trapping the survivors. I can't
say it was an easy business, however."
No serious decline in predator
populations has yet been linked to the poison problem.
"However, when you look at the increase of
rodenticide levels in these creatures, and the appearance
of resistance in rats, you realise it is time to start
sounding alarm bells," said Shore.
UK soils
"too fragile to farm"
A leading British soil scientist has
described some soils in Britain as being no longer
suitable for arable farming.
Professor David Poulson,head of soil
research at the Institute of Arable Crop Research in
Hertfordshire, wa speaking on the BBC 'Costing the Earth'
programme. He says that some soils have specific problems
which have developed as a result of over-intensive
agriculture. Continuous arable farming leads to a decline
in the organic content in the soil, which changes its
physical properties, making it more susceptible to
erosion.
The areas affected include the North
and South Downs in southern England, parts of the West
Midlands, and the Welsh borders. "In the long run,
we have to look at taking areas that are prone to severe
physical damage out of, certainly, arable production,"
he says.
The steady accumulation of heavy metals
in the soil is also of concern. Metals like zinc, cadmium
and copper, derive from the dumping of commercial and
industrial wastes, notably sewage sludge.
"We know that quite low levels of
these metals can have negative effects on soil microbes,
and on nitrogen-fixing bacteria. The metals stay in the
soil for many, many years, and only very tiny amounts get
washed out or taken up by plants," says Professor
Poulson. "The concentrations will build up, and at
some stage in the future they could have a bad effect on
the microbes. We certainly need to worry about those."
Dick Thompson, of the Soil Survey and
Land Research Centre at Silsoe in Bedfordshire, is also
worried about farming soils beginning to lose their
productivity.
"They are simply organo-mineral
mixes of sand and silt and clay, and seem to have no life
in them. They are now producing very much lower yields
than other soils. They contain very little organic matter."
Institute of Arable Crop Research
Soil Survey and Land Research Centre
Autumn crops kill
skylarks
A study of 995 skylark nests, carried
out between 1996 and 1999, across 24 farms in East
Anglia, Oxfordshire and Dorset, has found that the
populations on autumn-sown cereal crops were only half
those on spring-sown areas.
Spring-sown cereals allow the remains
or 'stubble' of the previous crop to be left unploughed,
providing food and cover for skylarks over the preceding
winter months. Spring-sown crops also provide safer
nesting sites and allow skylarks to make more breeding
attempts, as the growing crop remains relatively short
throughout the breeding season.
Recent changes in agricultural
practices have decimated skylark populations, which have
fallen by 75% between 1968 and 1996. During this period
the area of spring-sown cereals grown in the UK has
dropped from 73 per cent to just 16 per cent of the UK's
total cereal area. The changes were fostered by the EU's
Common Agricultural Policy.
The recent research was sponsored by
Tesco Stores Ltd, as part of the company's support for
the UK Skylark Biodiversity Action Plan. The study's
findings are the first tangible output of the
Biodiversity Action Plan process, and are the first step
toward preventing further skylark declines. "Tesco
is committed to meeting the needs of our customers and of
our suppliers," said a spokesman. "Our
involvement in the Skylark Action Plan further
demonstrates that Tesco is also committed to encouraging
responsible farming methods which benefit wildlife and
local communities."
Mark Avery, RSPB conservation director,
added: "Increasing the area of spring-sown cereals
is a feasible solution. The Government's recently
announced additional funding for environmental schemes
such as Countryside Stewardship, should be used to
support arable farmers to sow spring sown cereals and to
leave winter 'stubbles'. This is an opportunity not to be
missed and would go a long way to helping farmers meet
the challenge of skylark conservation."
Options within agri-environment schemes
such as the Arable Stewardship Scheme are likely to
benefit skylarks significantly if made available on a
wider scale. For example, winter stubbles followed by a
spring sown crop fit well into existing agricultural
systems and provide winter feeding and summer nesting
sites for skylarks and many other farmland birds. This
combination is a popular option with farmers and offer
good value for money. Following winter stubble with
summer fallow provides highly important nesting and
feeding areas where spring cropping is not practicable
due to soil type (ie where the soil remains too wet).
New web
site for Flora Locale
An important new web site was announced
recently - Flora Locale exists to promote the use of
native plants, rather than alien varieties, in replanting
schemes, for instance.
The new web site, at www.floralocale.org, will provide the UK's first ever one-stop-shop
information source on the sourcing, growing and use of
native plants for planting schemes. It is also intended
that the web pages will be expanded to include material
from other European countries.
The web site will also soon host a
bulletin board, as a means of enabling information
exchange between practitioners and other people
interested in the range of issues that surround native
plants for schemes with wildlife in mind. It is hoped
that the pages will be of particular interest to plant
growers and anyone working in the field of ecological
restoration, woodland planting or enriching urban
landscapes through ecological landscape projects.
National Biodiversity
Network funding
The government has announced 2000-1
funding of £250,000 for the National Biodiversity
Network.
The network, described by JNCC as
"a national system that links the demand for
biodiversity information to its collection" has so
far been a cooperative project, involving many
organisations, including the JNCC, the Natural
Environment Research Council, English Nature, the Natural
History Museum, The Wildlife Trusts, the RSPB, the
National Federation of Biological Recorders and the
Centre for Ecology and Hydrology. Now that government has
given its blessing, and funding, the members are relieved
and delighted. Funding has come from other sources,
including the Esmee Fairbairn Charitable Trust, which
supports the Local Records Centres project, and the
Heritage Lottery Fund. The challenge has been to obtain
funding for the 'backbone' of the Network, its
dictionary, gateway and index, and since the system is to
be used by local government and agencies, government
support has been sought.
Mark Avery, director of conservation at
the Royal Society for the Protection of Birds, said:
"This is really good news. This is the Government
facing up to its commitment to make information on
biodiversity much more widely available.''
"Our wildlife is under threat from
many sources and to help tackle this problem we must make
available the best possible information about the status
of wildlife," said the Environment Minister, Michael
Meacher. "This can be done if we use modern computer
technology to give access to the millions of wildlife
records made each year by experts and volunteers
throughout the country."
JNCC Corporate Plan
National Biodiversity Network
Winter
warming
As I in hoary winter's night stood
shivering in the snow,
Surprised I was with sudden heat which
made my heart to glow;
Robert Southwell, 1561?-1595
He might have known. The terrible cold
which made British winters feared by the poor and enjoyed
by the wealthy may be at an end. No more fields glinting
with frost in the thin winter sun, and icicles dangling
from barns; no more frozen lakes, and warmly wrapped rosy-cheeked
children skating on ponds. The winter of the twenty-first
century will be a mild, stormy interlude between warmer
summers.
Frost is becoming a thing of the past.
The number of icy nights in central England has already
fallen by a third in the past 40 years. In the Sixties,
the temperature dropped below zero on average 47 nights a
year. By the Seventies, it did so on only 39 nights a
year, and in the Nineties on just 35. The Met. Office
predicts the number of freezing nights will drop by a
further 50 per cent in the next 50 years.
Lake Windermere partially froze on
average on 10 days a year, until the mid-Eighties.
However, no ice has appeared on the lake since 1989. The
date at which birds begin singing in the spring has been
an important event, recorded by Tim Sparks, at the
Institute of Terrestrial Ecology. Now he no longer
records it: "We had to abandon the birdsong tests,
because they now just sing all the way through winter. We
can no longer record it as a spring event."
"The nights are getting warmer at
a more rapid rate than days - no one knows why, but it
may be to do with the degree of cloudiness," said
Geoff Jenkins, climate change specialist at the Met
Office. "We're absolutely certain the decline in
frost is due to global warming."
Flowers are flowering all year round.
"It's the most advanced year I can remember,"
said Barry Champion, head gardener at Trelissick gardens
in south Cornwall . "I had one plant flower in
December when it's meant to flower in July. Other shrubs
are flowering twice a year, in spring and autumn."
At the National Trust gardens in
Killerton in south Devon, daffodils appeared on 14
December. "We're certainly not getting as many
frosts, and we don't have to worry about protecting
plants from it in winter now," said head gardener
Andrew Mudge. "There's virtually no dormant season
now. The grass is growing all time, and we have to cut it
throughout winter, which we never used to."
Dr Ute Collier, head of climate change
at the Worldwide Fund for Nature, insists the warm
winters are a mixed blessing. "Some people might
think it's good for their garden, but we're also getting
much stormier winters. The sea level will be rising, and
we'll get more floods," she says. "This is only
the beginning; we're at the start of the changes."
Warmer
winters mean starving hedgehogs
Milder winters, the product of global
warming, are leading to major problems for one of our
favourite animals, the hedgehog. Youngsters which were
born last year should be hibernating until spring but
late-born hedgehogs are still up and about, using up the
fat reserves needed to see them through and risking death
by starvation.
Louise Brockbank, manager of the
Gloucestershire Wildlife Centre at Hartpury, says the 50
animals they care for each need to eat their way through
about £40 worth of cat food - half a tin each night -
before being released back into the wild. The centre has
to keep them warm and provide snug bedding to ensure that
they do not realise how cold it is outside.
To help the wildlife centre find the £2,000
cost of caring for undernourished hedgehogs, please call
01452-700038.
A remedy
for memory loss - in the field
Traditional remedies for loss of memory
are the latest to receive modern scientific confirmation.
2500 years ago Hippocrates recommended wormwood, and in
the sixteenth and seventeenth centuries it was sage, and
lemon balm, which were preferred.
'Sage is of excellent use to help the
memory' said Culpepper in 1653, and Gerard said 'Sage is
singularly good for the head and brain, it quickeneth the
senses and memory ...' in 1597; a little earlier Tusser
had said 'What savour is better (if Physick be true), For
places infected than Wormwood and Rue? It is a comfort
for hart and the braine, And therefore to have it it is
not in vaine.'
Latterly Elaine Perry of the University
of Newcastle has been following in their footsteps. She
has been investigating whether these folk remedies might
operate as modern drugs do to treat Alzheimer's disease.
Such drugs alleviate cognitive problems by stimulating
the nicotinic receptors which are one of the two types of
receptor for the neurotransmitter acetylcholine. Perhaps
the old remedies might have a similar effect?
Perry tested ethanol extracts of
various species of sage, the related herb lemon balm (Melissa
officinalis) and wormwood (Artemisia absinthium).
Wormwood contained chemicals that bound strongly to both
types of acetylcholine receptors, the nicotinic and the
muscarinic. Lemon balm bound to either or both, depending
on the variety. Pineapple sage (Salvia elegans)
bound strongly to the muscarinic receptors. Only common
sage (S. officinalis) did not bind strongly to
either receptor. Some samples bound as strongly as
carbamylcholine, a powerful drug that resembles
acetylcholine.
Perry suspects plants make the
compounds to poison plant-eating insects, whose nervous
systems have similar receptors. Even before the results
of Perry's work were known, varieties of sage and lemon
balm were in the first stage of clinical trials at
Newcastle. Lemon balm is being administered to volunteers
as aromatherapy. "The active compounds are volatile,
so that is an effective way to deliver the drug,"
says Perry.
Source: Journal of Ethnopharmacology (vol
69, p 105)
I remember,
I remember ...
The unpublished material in the Mass
Observation project relating to memories of the
countryside has been unveiled by Alun Howkins, professor
of social history.
The recollections, made in 1995, paint
an accurate picture of detailed changes in Britain's
countryside. They are mostly critical: most diarists
deplored the removal of hedgerows, according to the
correspondents whose writings are collected in an archive
at Sussex University. Their memories support 'official'
history.
A woman who grew up on a Dorset farm
before the Second World War wrote of "the meadows in
June like Swiss meadows, full of a variety of flowers,
herbs and grasses so good for the cows when made into hay
... thatched barns replaced by silos and battery chicken
houses, different crops - we never used to see bright
yellow fields of oil seed rape and now blue ones of flax
- even the pigs have changed their shape."
A woman born in Norfolk in 1932 who
spent much of her life overseas until the late Fifties
said that on her return "I was amazed at the
destruction of hedgerows, grubbing out has continued ever
since, starting during Second World War to increase food
production acreage, government-funded, and since the late
Sixties CAP-funded."
"The small hamlet that was once
lived in by farm workers is now inhabited by wealthy
middle class professionals . . . my friend's parents who
had returned [who had lived in a semi-tied cottage] ended
up in a council flat in town," wrote a Cleethorpes
housewife.
Toadstool
found after a century
The millennium has brought a sighting
of a toadstool which had been thought to be extinct for
at least a century.
Gordon Simpson found the fungus, Cytidia
salicina, as he carried out a wildlife survey for the
Forestry Commission. It had last been seen on Speyside,
in northeast Scotland, in 1900, but the latest find was
in Kielder Forest in Northumberland.
"I was walking just south of
Kielder village when I suddenly saw this scarlet stem,
about a yard long, in the distance," said Mr Simpson.
"When I got there I realised it was a fungus, so I
broke a small piece off and sent it to two of my
colleagues for analysis."
The final confirmation was made by
Peter Roberts at Kew Gardens. Mr Simpson, who found two
clumps of the fungus close together, said: "There
were scores of them and from a distance it looked as if
somebody had splashed scarlet paint."
Toads like
it hot - well, not cold
The winter meeting of the British
Ecological Society has heard that many of our accepted
views about toad hibernation are wrong, particularly
their liking for cold spots.
"There has been this misconception
that toads seek out cold conditions to lower their
metabolic rate and conserve stored fat reserves over the
winter," says Elizabeth Chadwick, of the University
of Wales in Cardiff. But in fact the toads prefer warmer
areas.
To measure the warmth of the
hibernation burrows, the team put microchips under the
skin of a colony of toads before releasing them into a
soil pit in their laboratory. A heating cable ran beneath
the soil, allowing the researchers to control the
temperature. Half the toads, which burrow up to 2in down,
sought out the warm areas where temperatures were up to
15C (60F) higher. Only 10 per cent went for the cold
spots.
"Rather than trying to minimise
their metabolic rates, the toads appear to be trying to
avoid freezing. Also, if they are in warm areas they may
emerge earlier in the spring and be at the breeding ponds
slightly earlier too," Miss Chadwick said.
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