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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

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