Читать книгу Walking in Bulgaria's National Parks. Pirin, Rila and Central Balkans National Parks онлайн

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As the beech or coniferous forests finally give way, somewhere between 1500m and 1850m, you enter into the sub-alpine zone. Here the vegetation is dominated by low scrubby formations of Siberian juniper (Juniperus sibirica), whortleberry (Vaccinium myrtillus) and Balkan spike-heath (Bruckenthalia spiculifolia). In places you can also find patches of dwarf mountain pine (Pinus mugo), but the occurrence of this species within the Central Balkan national park is far more restricted than it is in the Rila or Pirin mountains.

Wildlife

Dragonflies

The dragonflies of the Central Balkan national park have not yet been studied in detail, with records only from one small region. So far nine species have been reported: robust spreadwing (Lestes dryas), common bluetail (Ischnura elegans), azure bluet (Coenagrion puella), blue featherleg (Platycnemis pennipes), blue hawker (Aeschna cyanea), sombre goldenring (Cordulegaster bidentatus), broad-bodied chaser (Libellula depressa), southern skimmer (Orthetrum brunneum) and ruddy darter (Sympetrum sanguineum). It is likely, however, that after further research, especially along the upper courses of some of the streams, more species will be discovered.