Glaucidium passerinum General species characteristics System classification




Дата канвертавання20.04.2016
Памер47.69 Kb.
SELECTED DEFINITION OF

FAVOURABLE CONSERVATION STATUS

OF BIRDS (AVES)

Glaucidium passerinum





  1. General species characteristics

System classification:


  • Phylum: Chordata
  • Class: Aves

  • Order: Strigiformes


  • Family: Strigidae

  • Genus: Glaucidium


Distribution area:
  • Total distribution area: ca. 8 200 000 km2 (del Hoyo, Elliott, Sargatal, eds. 1999) evaluated approximately according to the distribution map. Coniferous forest (taiga) from Scandinavia through Baltic countries and Eastern Poland, Belarus, European part of Russia and Siberia up to Sachalin, a coherent stripe of width 600-1000 km. In addition to it in Europe in Carpathians, Alps and Alpine foothills, Central Germany, Czech Republic and insular (dispersal) distribution in Balkan and Greece (Hagemeijer, Blair (ed.), 1997, del Hoyo, Elliott, Sargatal, eds. 1999).

  • Distribution area in Slovakia: 20 856 km2 evaluated approximately according to the distribution map (Danko, Darolová, Krištín (eds.), 2002). (It is less than 1% of total DA)


Main habitats: open coniferous and mixed forests of taiga and montane type, often stands with fir, spruce, often in mixture with beech (Carpathians), poplar, birch (taiga) and other broadleaved trees. In Slovakia, it occurs in coniferous and mixed forests from 400 asl in central and eastern Slovakia up to the upper forest limit.

Conservation status of the species: National: NE (not evaluated)

Other: not globally endangered, CITES II, non-SPEC species

Classification within national and international legislation: Order of MoE SR No. 24/2003, Annex I BD, Annex II Bern Convention, CITES II


  1. Definition of favourable conservation status




FAVOURABLE STATUS

UNFAVOURABLE STATUS

Evaluation criteria

A –

B –

C –

Good

Average

Unfavourable

Population

1.1. Population size / population density

In SR more than 2000 breeding pairs (BP)

In SR 1500-2000 BP

In SR less than 1500 BP

Population density within mountain range

50-100 terit./100 km2 and more



Population density within mountain range

1-50 terit./100 km2



Population density within mountain range

less than 1 terit./100 km2



Population density within locality 0,5-1 terit./km2 and more

Population density within locality 0,1-0,5 terit./km2

Population density within locality less than 0,1 terit./10 km2

1.2. Population trend

National population increased of more than 20%

National population is stable or slightly fluctuates (+20%)

National population decreased > 20% and more

Population within a locality increased of more than 20%

Population within a locality is stable or slightly fluctuates (+20%)

Population within a locality decreased > 20% and more

1.3. Distribution area size

33-35% of the area of SR

25-33% of the area of SR

Less than 25% of the area of SR

1.4. DA trend

DA increases

DA is stable or slowly increases


DA declines of more than 10%

1.5. Interspecies interactions

Insignificant competition with other species, which use the hollows (Glis glis, Sitta) or larger owls (esp. S. aluco, less S. uralensis)

Locally insignificant competition with other species, which use the hollows (Glis glis, Sitta) or larger owls (esp.

S. aluco, less S. uralensis)

Very strong competition with other species, which use the hollows (Glis glis, Sitta) or larger owls (esp.

S. aluco, less S. uralensis)

Habitat

2.1. Breeding habitat

Presence of old, only slightly disturbed coniferous or mixed stands of suitable species composition (spruce, fir, beech) and age (over 80) structure; presence of the woodpecker holes

Presence of old stands of suitable species composition and age structure; presence of the woodpecker holes


Old forest stand is disturbed over 30 % of a breeding habitat; presence of the clearcuts and extensive young stands

2.2. Food habitat

Presence of open plots in the old stand of spruce, fir or fir-beech (occasionally other wood species) forests, water (brook or standing water), different age structure of the stand – old coniferous forest as well as dense young stands

Presence of open plots in the stands, water (brook or standing water), different age structure of the stand – old forest as well as dense young stands; permanent pressure of felling, occasional clearcuts

Old forest stand is disturbed; presence of clearcuts, extensive young stands

2.3. Wintering habitat

Threats

3.1. Threat of species (pursuing, disturbance)

Under 20% of the distribution area is under the stresses pressure, e.g. overfelling, disturbing, roads, ski-centres, noise


20-30% of the distribution area is under the stresses pressure, e.g. overfelling, disturbing, roads, ski-centres, noise

30-50% of the distribution area is under the strong stresses pressure, e.g. overfelling, disturbing, roads, ski-centres, noise

3.2. Threat of habitat

Significant part of the forest stands is without any interference, a large-scaled deforestation and the hollow trees elimination practically

do not occur



A large-scaled deforestation and the hollow trees (also dry trees and snags with hollows) elimination

occur sporadically, environmental-friendly ways of felling are preferred



A large-scaled deforestation and the hollow trees (also dry trees and snags with hollows) elimination

occur relatively often and impacts on population are considerable



3.3. Threat of wintering habitat




  1. Species status final evaluation

Criterion

A

B

C

Parameter weight

Reached value

(status x weight)

Population

1.1. Population size / population density

3

2

1

3




1.2. Population trend

3

2

1

3




1.3. Distribution area size

3

2

1

3




1.4. DA trend

3

2

1

3




1.5. Interspecies interactions

3

2

1

2




Habitat

2.1. Breeding habitat

3

2

1

3




2.2. Food habitat

3

2

1

3




2.3. Wintering habitat

3

2

1

3




Threats

3.1. Threat of species (pursuing, disturbance)

3

2

1

3




3.2. Threat of habitat

3

2

1

3




3.3. Threat of wintering habitat

3

2

1

3
















Maximum possible value (∑ of weights × 3)















Total reached value





Allocate the points in range 1, 2, 3

Allocate the weight in range 0, 1, 2, 3. Weight 0 use especially in case of a lack of data on particular parameter



Percents

A –

Good

B –

Average

C –

Unfavourable

100 – 78%

77 – 55%

54 – 33%







According to the number of appointed points please mark the relevant field with X


  1. Management measures required for maintenance of favourable conservation status

  • avoid the clear-cuts

  • support the environmental-friendly ways of felling, no interference into the nature reserves and protected forests


Elaborated by: MVDr. Samuel Pačenovský

Review: RNDr. Anton Krištín, CSc.
References:

E J M Hegemeijer, M J Blair (eds) 1997: The EBCC Atlas of Breeding Birds in Europe. T&AD Poyser, London. p. 406-407



del Hoyo, J., Elliott, A., Sargatal, J. eds., 1999: Handbook of the Birds of the World, Vol. 5. p. 209-210

Pačenovský, S., in: Danko, Š., Darolová, A., Krištín, A., (eds.), 2002: Rozšírenie vtákov na Slovensku. p. 364-366.

Rybanič et al., 2003: tab. Pokrytie národných populácií výberových druhov sústavou CHVÚ. (Správa SOVS o stave spracovania národ. zoznamu CHVÚ)

Rybanič, R., Šutiaková, T., Benko, Š., (eds.) 2004: Významné vtáčie územia na Slovensku. Územia významné z pohľadu Európskej únie. Spoločnosť pre ochranu vtáctva na Slovensku, Bratislava.






База данных защищена авторским правом ©shkola.of.by 2016
звярнуцца да адміністрацыі

    Галоўная старонка