130925-studie-wildlife-comeback-in-europe
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Estimate Year assessed Reference<br />
Global No data -<br />
-<br />
Europe 9,860,049 2005<br />
[8, 10–12, 17–32]<br />
% of global population No data<br />
Albania No data - -<br />
Austria 1,050,000 2005<br />
[33]<br />
Belarus 51,190 2003<br />
[12]<br />
Belgium ~60,000 2006<br />
[34]<br />
Bulgaria 71,000 2006<br />
[12]<br />
Croatia 41,500 2002<br />
[35]<br />
Czech Republic 292,800 2004<br />
[11]<br />
Denmark 200,000 2005<br />
[17]<br />
Estonia ~50,000 2005<br />
[18]<br />
France 1,200,000 2005<br />
[19]<br />
Germany ~2,400,000 2010<br />
[20]<br />
Greece No data - -<br />
Hungary 316,157 2005<br />
[21]<br />
Italy 426,000 2005<br />
[22]<br />
Latvia ~130,000 2005<br />
[18]<br />
Lithuania ~80,000 2005<br />
[18]<br />
Luxembourg 24,000 2003<br />
[12]<br />
Macedonia 5,000 2002<br />
[12]<br />
Moldova 2,300 2002<br />
[12]<br />
Montenegro 1,627 2005<br />
[12]<br />
Netherlands ~60,000 1992<br />
[23]<br />
Norway 90,000 2005<br />
[24]<br />
Poland 692,000 2005<br />
[10]<br />
Portugal 3,000–5,000 2010<br />
[25]<br />
Romania 159,000 2006<br />
[26]<br />
Serbia 120,000 2005<br />
[27]<br />
Slovakia 80,000–85,000 2010<br />
[28]<br />
Slovenia 150,000 2005<br />
[29]<br />
Spa<strong>in</strong> 600,000 2005<br />
[30]<br />
Sweden 800,000 2010<br />
[31]<br />
Switzerland 133,575 2004<br />
[32]<br />
Ukra<strong>in</strong>e 120,900 1999<br />
[12]<br />
United K<strong>in</strong>gdom ~450,000 2007<br />
[8]<br />
Table 2.<br />
Latest population<br />
estimates for the<br />
Roe deer globally,<br />
<strong>in</strong> Europe and<br />
for European<br />
populations. No<br />
<strong>in</strong>formation was<br />
available for Albania<br />
and Greece.<br />
of Corsica [19] . While the species was formerly<br />
restricted to forest, colonisation of more open<br />
habitats started from the 1980s, lead<strong>in</strong>g to<br />
marked population recoveries <strong>in</strong> agrosystems [38] ,<br />
Mediterranean landscapes [39] and mounta<strong>in</strong>ous<br />
areas [19] . The hunt<strong>in</strong>g bag has steadily <strong>in</strong>creased<br />
s<strong>in</strong>ce the early 1970s, and although 500,000<br />
<strong>in</strong>dividuals were culled <strong>in</strong> 2004, some argue that<br />
this Figure should be higher [19] .<br />
In Austria, the situation is comparable: as the<br />
most common ungulate, the Roe deer occurs <strong>in</strong><br />
90% of the country, with a maximum population<br />
density of about 40 per km 2 [33] . There has also<br />
been a l<strong>in</strong>ear <strong>in</strong>crease <strong>in</strong> the hunt<strong>in</strong>g bag [33] . While<br />
cull<strong>in</strong>g <strong>in</strong>tensity was already high <strong>in</strong> the early<br />
1960s, particularly <strong>in</strong> the west of the country,<br />
it is now more than 2 per km 2 per year <strong>in</strong> most<br />
adm<strong>in</strong>istrative districts, with the exception of<br />
parts of Tyrol, and the areas around Innsbruck and<br />
Vienna [33] . The other ma<strong>in</strong> source of mortality are<br />
vehicle collisions, which account for around 8% of<br />
<strong>in</strong>dividuals killed <strong>in</strong> 2005 [33] .<br />
Abundance and distribution: changes<br />
Accord<strong>in</strong>g to available range data, the Roe deer was<br />
widely distributed <strong>in</strong> 1900 across an area of around<br />
2,700,000 km 2 cover<strong>in</strong>g central Europe from<br />
eastern France to Russia (with the exception of<br />
Italy and the Balkan pen<strong>in</strong>sula), Scotland, eastern<br />
Denmark, southern Sweden and the easternmost<br />
part of European Russia (Figure 1a). Phylogeographic<br />
analyses <strong>in</strong>dicate that some populations<br />
persisted <strong>in</strong> some small patches <strong>in</strong> Iberia [40, 41] . This<br />
distribution was the result of <strong>in</strong>creases <strong>in</strong> the latter<br />
half of the 19th century which followed decl<strong>in</strong>es up<br />
to around 1800 [9] . S<strong>in</strong>ce then, the species has ga<strong>in</strong>ed<br />
ground, now occupy<strong>in</strong>g around 2.2 times its range<br />
<strong>in</strong> 1900 (Figure 1a). Most of this change occurred<br />
between 1900 and 1967, when deer distribution<br />
almost doubled, spread<strong>in</strong>g outwards from its core<br />
central European range (Figure 1a). In Scand<strong>in</strong>avia,<br />
for example, the Roe deer was restricted to a<br />
population of around 200 <strong>in</strong>dividuals <strong>in</strong> the southernmost<br />
part of Sweden before 1850, but expanded<br />
its range after 1850 at a rate of around 12 km per<br />
year [24] .<br />
A further extension of 25% between 1967<br />
and the present day resulted <strong>in</strong> the species now<br />
reach<strong>in</strong>g across the European cont<strong>in</strong>ent from<br />
Scand<strong>in</strong>avia <strong>in</strong>to the South of Spa<strong>in</strong>, France and<br />
Italy and as far as east of the Caucasus. However,<br />
rates of expansion over this time period have<br />
varied greatly, both across Europe and at sub-regional<br />
levels. In southern Scand<strong>in</strong>avia, it was of<br />
much slower pace despite the fact that habitat<br />
was deemed more optimal for the species [42] .<br />
Conversely, range expanded by 2.3% per annum<br />
between 1972 and 2002 <strong>in</strong> the United K<strong>in</strong>gdom, and<br />
the species was predicted to spread even further to<br />
cover around 79% of ma<strong>in</strong>land Brita<strong>in</strong> with<strong>in</strong> ten<br />
years [43] . In addition, positive range change <strong>in</strong> Spa<strong>in</strong><br />
between the 1960s and the present day is likely<br />
to be an underestimation, as the Roe deer was<br />
less widespread around its glacial refuges <strong>in</strong> 1967<br />
than depicted <strong>in</strong> Figure 1a [41] . The expansion of the<br />
species from these areas occurred primarily over<br />
the last 30–40 years, especially <strong>in</strong> the northwest of<br />
the country [41] .<br />
Range contraction has only occurred at a sub-regional<br />
level <strong>in</strong> the southern extreme of the species’<br />
range <strong>in</strong> Spa<strong>in</strong> (due to habitat restrictions [41] ) and<br />
Italy (Figure 1b). It is <strong>in</strong> these areas that populations<br />
are generally more disjunct than others (Figure 1b).<br />
This is a particular concern as populations here are<br />
believed to be dist<strong>in</strong>ct from the European clade<br />
s<strong>in</strong>ce the last glaciation [22, 30] and may be seriously<br />
compromised from a genetic po<strong>in</strong>t of view [22] .<br />
The overall positive trend is also reflected<br />
<strong>in</strong> the change <strong>in</strong> population size. Monitored<br />
68