geographical issue essay_2[1]
TRANSCRIPT
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Will the reintroduction of native species to the Scottish Highlands be beneficial to
the environment and the surrounding communities?
Introduction:
Recently there have been a number of proposals for reintroducing native species to
suitable habitats in the UK. These have included beaver and predators such as lynx and
wolf. The Scottish Highlands are deemed the most suitable place to reintroduce these
creatures in Britain. Environmentalists argue that introducing these predators would help
control the out of hand red deer population. This would help the re-establishment of
plants and birds which are currently being affected by the over population of deer. All
over Europe and America animals such as the wolf are either returning unaided or being
reintroduced. According to surveys a majority of people in the UK feel positively towards
the reintroduction of animals, even wolves. If this is the case why hasn’t it happened yet?
One reason is the reaction of the Scottish public has not been all positive. Some people
believe that because these species have been extinct for a long time the Scottish
landscape will have changed too much for these animals to survive as they once did.
Farmers believed that predators such as wolves eat livestock and could attack people. It’s
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not just the predators that are seen as the problem. Anglers and farmers complain that the
reintroduction of beavers would be against their interests. Are their concerns justified?
Source 1: Magnus Linklater is a Scottish journalist who writes for various newspapers.
His article “Let’s not go back to the Middle Ages” was featured in ‘The Times’ on
December the 10, 2008. He has posted many articles on the subject of reintroduction and
all off these are against reintroduction.
Source 2: The author is Dr Charles Warren. He is a senior lecturer for the school of
geography and geosciences in St. Andrews University. He has an MA in Geography at
Oxford and an MSc in Natural Resource Management at Edinburgh. He has published
various materials on Scotland’s environment and is a member of the Royal Geography
Society. This source is taken from a chapter of his book “Managing Scotland’s
Environment”.
Source 3: Charles J. Wilson is a lecturer in Napier University’s school of life sciences.
This article was published online on March 31, 2004 and in the Mammal Review Volume
34, Issue 3 in July 2004.
Summary:
Source 1: The arguments that Magnus Linklater makes are completely against the
reintroduction of any native species to anywhere in Britain, never mind Scotland. He is
unable to understand why people are considering reintroducing these animals and
compares it to the introduction of Grey Squirrels. His belief is that introductions won’t be
controlled and that these species won’t fit into the Scottish countryside. He leaves no
doubt about his opposition to the EU legislation on reintroduction. He argues that for
species that have been extinct for a long time, changes in land use make re-introductions
undesirable. However, he is willing to concede that a case could be made for more recent
extinctions. With regard to the reintroduction of beavers, he argues that the Scottish
environment has changed too much for beavers to live like they once did and disputes all
the potential benefits put forward by Scottish Natural Heritage (SNH). His ‘evidence’
consists of brief interviews with a farmer and a politician who agree with him. One of his
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main opinions is that conservationists ignore rural communities. He expands on this by
using the reintroduction of sea eagles as an example, saying that even though the RSPB
knew that farmers were unhappy with their plans, they still went ahead. He considers the
RSPB’s response that sea eagles are more likely to eat fulmars than sheep as
“irresponsible” and his interpretation is that conservation bodies should not regard native
species as “little more than a larder for a newly introduced killer species.”
Source 2: Charles Warren categorises the arguments for and against the reintroduction
of lost native species into four main categories: social, ecological, economical & ethical.
He also explains the current situation of the reintroduction of wolves, for instance the
possible sites for wolf introduction and why these have been deemed unsuitable. This is
when he starts his main argument. His first argument being it is ecologically feasible as it
helps efficiently control red deer populations. He explains it would be ethical because we
were the cause of their extinction so we should aid their return. He then moves on to the
economical side of the argument which says that tourists will come to Scotland to wolf
watch and when there is enough wolves people could take part in big game hunting. He
moves onto people’s reactions to wolves’ reintroductions and his next argument acts as a
reassurance that wolves rarely attack humans. Even if they do attack farmers livestock he
gives the idea of compensation funds to keep them happy. However he feels these will
have to be taken up by volunteer organisations because the government are unlikely to
comply His conclusion is that wolf reintroduction is likely to create a gap between rural
communities and conservational bodies and make future reintroductions harder.
He then tackles lynx reintroduction for which most his initial arguments are the same as
his arguments for wolves however he feels that the lynx is more likely to be accepted
because they have a better reputation than wolves. He also says that lynx will restore
missing ecological processes. On the down side he also has a concern that they might
start preying on rare native species. He concludes that lynx are a bigger possibility than
wolves but will not be reintroduced in the near future.
He splits the chapter on beavers into two main sections: whether beavers are desirable or
feasible? Again he uses an argument along the lines of it being our moral responsibility to
reintroduce them. He also states that they are a keystone species in forest habitat with
hydrological and conservational advantages. There are also economical advantages as
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beavers would become a tourist attraction and a game animal. He then moves onto the
opposition made by forester and anglers and concludes that forester fears are valid while
anglers aren’t. He also claims that the benefits that beaver introduction will outweigh any
small local problems. The likelihood of beavers being reintroduced is high because they
have started trial runs. The outcome of these will decide the beavers future in Britain
Source 3: The author focuses solely on carnivores not considering beaver. He reviews
information on wolves, lynx to find out if whether enough of the required habitat exists in
the UK to hold a viable population of these species and to evaluate any potential risks to
human safety, lives stock and valuable wild life. He also briefly looks at the publics
attitudes the reintroduction of some other mammals are also briefly reviewed. Hisarguments all fit into three main columns: Do we have room for them? Are they a threat
to people? Would their impact on livestock or economically important game or wildlife
be unacceptable? He first evaluates where these predators could be reintroduced: he
concludes because of the large land range and low population densities large predators
require, the Scottish Highlands is the only part of the UK with the potential to support a
viable population. There are also fewer people living in the Highlands and the amount of
wild prey is higher than many places in Europe where large carnivores survive. Attacks
on people have been noted for wolves; however there are no reports of attacks by lynx.
Wolves and Lynx have been known to prey on livestock but prefer wild prey if it’s
available. However, mass kills of up to 100 or more sheep have been occasionally
recorded for wolves. He then moves onto the reactions of the public. The general public
doesn’t seem that bothered by the concept of reintroducing these predators, but people
who are more likely to be affected by these animals have a more negative view on the
matter. He concludes that the reintroduction of wolves is unlikely to happen anytime soon
because of fear for livestock. Reintroduction of the lynx may be more likely but
uncertainty about whether there is enough suitable habitat and potential damage to
vulnerable native species such as capercaille needs to be assessed. He also feels social,
economical and legal issues would need to be discussed before reintroduction can be
considered.
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Analysis:
Source 1: We know Magnus Linklater’s opinion from the first sentence where he states
that conservation is verging on “lunacy”. However even though his disapproval of
reintroduction is clear he doesn’t give much evidence to back up his opinion.
Linklater’s first argument is fairly weak as it is irrelevant to the topic he is discussing. He
compares the reintroduction of the beaver to the introduction of grey squirrels. Although
he provides figures to back up the fact that the “alien” grey squirrels are out of control
and are wiping out the native red squirrels; they are not of much use given that the
introduction of an alien species and the reintroduction of a “native” species are
completely different: Beavers are able to survive in the Scottish environment and there is
some information on how they would react to living in Scotland, whereas grey squirrels
were brought over with no control and no idea about how they would react to the Scottish
environment.
He then goes on to criticise Scottish Natural Heritage saying that they should have learnt
that “alien species” aren’t easy to control. He again makes the mistake of classifying
beavers as an “alien species”; which they are not.
The Authors argument is weakened because he seems unable to understand the other side
of the argument. He opens the next paragraph proving this stating that “it is far from clear
why this is being done”, and then goes on to explain in detail why Scottish Heritage who
he claims to be “behind the project” (making it sound like an accusation) are taking up
this project. He claims that the language is obscure however, this just emphasises how
lazy his argument is as language is easily understood if it’s studied.
It is in the next paragraph he makes his first strong argument. He reasons that beavers
have not been in Scotland since the 16th centaury, and that the environment in Scotland
was very different: Scottish woodland was heavily exploited for timber, charcoal and tan-
bark during the 17th and 18th centauries and by the 1900’s people had lost interest in
woodland, leaving only 4% woodland area. Now only 1% of land surface is native
woodland [1][fig.1]
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Figure 1: maps of woodland
He then brings local fishing and farming industries into the picture backing up his
argument against reintroduction: Farmers claim that wolves eat their livestock and he
claims that Fishing is disrupted by beaver damning; he refers to various articles [2] [3]
saying how beavers dam salmon spawning sites. Although they can hinder salmons
journey upstream, it is said that because beaver dams slow the rivers current it provides
an ideal area for young salmon to grow and hide from predators which would benefit
salmon spawning [4]. He feels that both industries are critical to Scotland’s economy and
they are the reason beavers were wiped out in the first place; so why would we want them
back?
Just when he’s starting to make strong arguments he puts emphasis on his lack of
research by stating he understood the reintroduction of Ospreys, even though ospreys
returned by themselves. Humans have been helping ospreys through stopping egg
collectors and moving some newly hatched chicks to England to establish a populationthere [5].
He then moves on to the reintroduction of sea-eagles. Claiming that the RSPB ignored
rural communities who said sea-eagles were seizing their sheep. However, as the nature
of sea-eagles is that of a carrion feeder they are only likely to scavenge sheep [6]. He also
says that sea-eagles are eating fulmars claiming that this is no better than them eating
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livestock; however, although fulmars are beautiful birds they have a well established
population in the UK and their numbers are unlikely to be effected.
Source 2: He begins with a brief summary of where wolf reintroduction stands and what
plans have been made for their reintroduction. His first argument is an ecological one; he
states that wolves would be an efficient way of controlling the red deer population
referring to an earlier chapter of his book. Still giving ecological arguments he claims
there will be many ecosystem wide benefits like there was in Yellowstone. The predicted
transient population dynamics following the reintroduction of wolves to Scotland have
been modelled by Nilsen et al. (fig.3).
Figure 2 - Relationship between wolf and deer populations
Although this is a valid point and he gives reference to back it up it could still be
considered a weak argument as the size, environment and habitat of Yellowstone is
different to that of the Scottish highlands where the reintroduction wolves would have a
different impact. His next points are about it being ethical. Reintroducing wolves will
give us the elation of doing something morally good and we will be relieved of the guilt
we feel because we’re the reason they became extinct in the first place. Even though this
is a good foundation for his argument; alone it will never be sufficient enough to lead to
reintroduction. This leads him to consider economical benefits. He starts by stating that
wolf watching will attract tourists just like it did in North America referring to Panaman,
The dashed line represents hind (3
years or more) densities, the
dotted line trophy stag (more than
5 years) densities, and the solid
line wolf densities. Standard
deviations (thin dotted lines)
around the lines do not include
cases when wolves went extinct.
The grey points are wolf densities
in the northern range of
Yellowstone National Park following the wolf reintroduction
in 1995 (from Smith et al . 2003).
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with more references and are given more examples. He then makes references to people
who fear that lynx would attack native species such as Capercaille and wildcats. However
because of the overpopulation of rabbits, foxes and deer it is unlikely that the native
species will suffer. Although the reintroduction of lynx is likely because of these issues it
is unlikely to be in the near future.
His next section is on beavers he splits his arguments into desirability and feasablity.He
starts with desirability first and kicks off with the same reasoning he started off the wolf
section with. He argues that beavers are desirable because many people feel it is our
“moral responsibility” to return them as we drove them out in the first place. This reason
comes in the form of a quote from Scottish Natural Heritage which makes it stronger than
the first time he mentioned moral “responsibility”. Knowing that this isn’t enough of an
argument for the return of the beaver to be accepted he moves on to ecological reasons
which he backs up with many quotes and referenced from/to different people and
organisations such as SNH, who believe the beavers have many conservational
“advantages” making his argument fairly strong. Economical reasons are tackled next and
they are basically the same as the ones for wolves: Tourism and game. While explaining
these reasons he always gives examples to strengthen his argument such as the several
countries in Europe who have also one through beaver reintroduction and are finding it
boosts tourism in certain areas, also sea eagles and ospreys have brought a lot of tourism
in Scotland.
He now talks about whether it is possible. He show a lot of proof throughout the
desirability section which shows that ecologically and economically it will bring many
benefits. However many land users object and he now goes on to tackle the arguments
made by Anglers and foresters. He draws on Norwegian experience to validate their
arguments. Foresters fear over the suffering of broad leaf riparian forests are valid. But
according to Parker and al. “fisher’s fears are unfounded”. Concluding that there are
more benefits than concerns which is what SNH and Macdonald have said as well. This
concludes strongly that Beavers are likely to be reintroduced, this is a valid conclusion as
a trial is currently being run with positive results.
Source 3: He begins with the question: “Do we have room for them?” He begins by
giving us background information on the required amount of space to hold the minimum
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viable population (MVP): MVP is the smallest possible size at which a biological
population can exist without facing extinction from natural disasters or demographic,
environmental genetic stochasticity. He gives various suggestions from other sources of
the MVP for wolves and lynx: Wolves estimated at 100 by Fritts & Carbyn, while he
states there are no published estimates for lynx and proceeds to give his own
approximations. However rather than just stating numbers he takes us through the process
he went through to get them providing many references along the way which strengthen
his conclusion: His results suggest 200-250 for both wolves and lynx. Through
comparisons to other European habitats which have no more than 200 wolves
(Breitenmoser, 1998) he shows that these are substantial numbers especially when a
majority of the habitats within continental Europe are much more extensive than the
Scottish highlands. He now moves on to how the MVP is affected by habitat and the
amount of land required to hold these species. He shows just how the range required can
vary through an example (all of Wilsons arguments are well thought through and prove
that he must researched a lot into the subject as there is almost a reference every
sentence): in North America wolf home ranges vary from 80km2 in Minnesota to almost
13000km2 in Alaska. He states that the further north you go the larger the range of lynx
and wolves get, he provides evidence for this in the form of a table which contains
Species, region (all are within Eurasia), home range in km2, Density per 100km2 (when
available) and his sources for each figure. He then goes on to make an estimate at the
space requires to hold the viable population which he concludes with an explanation for
the process in producing the number which is five times the size of the lake district. He
claims that there is substantial habitat to hold these numbers in the highlands however
because most of the land is under private ownership it is unlikely. Again he produces
another reason which makes the Scottish habitat suitable for reintroduction and provides
all the figures clearly and in an easy to understand way. This time its human population
densities and road densities which are significantly lower than in places in North America
and Continental Europe [fig 2,3], leaving the author for the time being with a positive
feeling towards predator reintroduction even though ultimately he is against it; this shows
that the Wilson has made sure he has a thorough understanding of both sides of the
argument before he made his decision
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He now moves on to his next question: Are large carnivores a threat to people? He starts
of by investigating the wolves’ bad reputation for attacking people (especially children)
and immediately dismisses that wolves are “innate killers of children” (Valverde, 1975)
as Mech (1970) found there has been no scientific evidence to prove that there were
attacks made by healthy wolves in North America and concluded that attacks in Eurasia
Fig. 4 Population Fig. 5 Road Map
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were exaggerated. He backs up the conclusion made by Mech by providing another
reference this time to Boitani (2000) who confirmed that there were no reliably
documented cases of non-rabid wolf attacks in Europe through the 20th Centaury. He feels
this reputation was created by one attack in Romania which killed 20 people (Pimlott
1975) he makes sure to provide a reference for this and any other assumption he makes.
He gives a conclusion from Breitenmoser et al. (2000) that the lynx posed no threat to
people and did not find anecdotal claims of a man-eating lynx. Any Injuries recorded
where accidents including injured, captured or rabid animals. The main worries about
lynx are for livestock. He even claims that females driven away from their cubs aren’t
dangerous. He provides another reference to prove what Breitenmoser states this time
from Yalden (1999) who noted that lynx that live and hunt around Stockholm without
being a direct danger to the humans living there. He now moves to his final question:
Would their impact on livestock, game, or wildlife be unacceptable? He starts by stating
the research he has done and laid it out in a table. He also named all the methods he used
so the reader can clearly understand this strengthens his arguments and the content of his
journal as it proves he actually did some work himself rather than just copying and
pasting other people’s research, this maintains a balance in his writing using his own
working and methods to come up with his own hypothesis providing his own figures then
proves them with various statements and percentages from other sources. He starts of by
analysing the importance of different foods in the diets of wolves and lynx. He creates a
table of his findings however he feels the methods in acquiring the figures in his table
overcompensate for prey which is completely consumed of unlikely to be found or
reported. He also feels that avian prey is underestimated in numbers in many dietary
studies so the impact may be higher than suggested in studies. While making these point
he refers back to the table which has a list of studies he researched for it, he also makes
reference to Reynolds & Aebischer thoroughly listing any research done. He gives
information from Ciucci & Boitani, 1998 and Vos, 2000 which suggest that wolf
predication of livestock is usually small but they can have a big impact on individual
landowners. He draws figures from Tuscany which suggested an average of 3 sheep were
killed per attack however in a small number of cases from 21 to 113 were killed. This
would be fatal to some farmers. Kills were most common when sheep where left to roam
freely in mountain areas, as most livestock in the highlands are kept through hill-sheep
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farming this will strengthen the anti-reintroduction barrier. Although proven to not have
an impact on farming lynx they have been proven to attack game animals and rare native
species such as the capercaille: again Wilson provides a lot of evidence to make sure his
point of view is validated. He concludes that because of a bad reputation and opposition
from livestock farmers wolves are unlikely to be reintroduced, whereas the lynx he feels
could be reintroduced; however he feels there are still many things which have to be
considered like lack of suitable habitat before this could happen meaning it wouldn’t be
in the foreseeable future.
Conclusion:
Out of the three sources I analysed Charles J. Wilson (source 3) provides the strongest
arguments. He has obviously done a lot of research and backs up almost everything he
says with references and statistics. He manages to do this without appearing to have
copied and pasted everything; he uses the sources to analyse his own arguments. Another
way he achieved this was by working out many of his own figures and explaining the
processes as he went along. However, I found at times the number of references provided
could become quite daunting and drowned out whatever his actual point was. His work
was well researched and well argued and he successfully detached himself from his
writing, however he does this to such an extent he leaves the reader unsure of what his
opinion actually is. This emotional detachment contrasts completely with Magnus
Linklater’s article which is lacking in research and understanding. The main problem
with Linklater’s piece is that as a newspaper article it should be an informative piece of
writing written to give the public important information. Linklater’s ‘article’ is
completely biased with little information. Although Charles Warren takes the middle
ground and keeps emotionally in control he often referred to the situation in North
America for evidence (whose climate, habitat and land area varies drastically form
Scotland’s). The comparisons he made with North America should have been replaced
with European countries especially Norway (He does refer to Norway at one point). In all
I think his argument was well thought out, it’s arguments just lacked a sense of finish;
take “healthy wolves very rarely attack humans, but some attacks do occur” for example,
there is so much more which could have been said instead he just quotes a slightly
ambiguous sentence and leaves it open to interpretation. Even though I struggled to read
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his journal I felt Wilson’s arguments in general where structured better, had sufficient
evidence and reflected his conclusions best.
Secondary Sources:
Websites/Online Articles:
[1] http://www.snh.gov.uk/land-and-sea/managing-the-land/forestry-and-
woodlands/history/
[2] http://www.timesonline.co.uk/tol/news/uk/scotland/article5298702.ece
[3] http://www.timesonline.co.uk/tol/news/uk/scotland/article5102431.ece
[4] http://rocky.ess.washington.edu/grg/publications/pdfs/Pollock.pdf
[6] http://news.bbc.co.uk/1/hi/uk/1382014.stm
[7] http://www.rspb.org.uk/wildlife/birdguide/name/w/whitetailedeagle/feeding.aspx
Maps and Pictures:
[Fig. 1] http://www.scotland.gov.uk/Publications/2010/09/23100015/12
[Fig. 2] http://www.snh.org.uk/publications/on-
line/designatedareas/nnrs/glenaffric/default.html
[Fig. 4] http://www.moray.gov.uk/census_2001/census4.htm
[Fig. 5] http://www.scotlandinfo.eu/scotlandroadmap.htm