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Corylus avellana

Habitus and growth type

  • Height [m]: 2–6 ?
  • Growth form: shrub ?
  • Life form: nanophanerophyte ?
  • Life strategy: C - competitor ?
  • Life strategy (Pierce method based on leaf traits): CS/CSR ?
  • Life strategy (Pierce method, C-score): 38.8 % ?
  • Life strategy (Pierce method, S-score): 37.2 % ?
  • Life strategy (Pierce method, R-score): 24 % ?

Leaf

  • Leaf presence and metamorphosis: leaves present, not modified ?
  • Leaf arrangement (phyllotaxis): alternate ?
  • Leaf shape: simple – entire ?
  • Stipules: present ?
  • Petiole: present ?
  • Leaf persistence: summer green ?
  • Leaf deciduousness in woody plants: winter deciduous ?
  • Leaf anatomy: mesomorphic ?
  • Functional leaf type in woody plants: broad deciduous or semi-deciduous ?

Flower

  • Flowering period [month]: February-April ?
  • Flowering phase: 1 Corylus avellana-Leucojum vernum (pre-spring) ?
  • Flower colour: yellow, brown ?
  • Perianth: homochlamydeous, reduced or absent ?
  • Fusion of the perianth: reduced ?
  • Inflorescence type: amentum e floribus masculis, dichasium e floribus femineis compositum ?
  • Dicliny: monoecious ?
  • Generative reproduction mode: allogamy self-incompatibility ?
  • Pollen vector: wind ?

Fruit, seed and dispersal

  • Fruit type: dry fruit – nut ?
  • Fruit colour: green, brown ?
  • Reproduction type: mostly by seed/spores, rarely vegetatively ?
  • Dispersal unit (diaspore): fruit, infrutescence or its part ?
  • Dispersal strategies: Cornus (mainly autochory and endozoochory) ?
  • Myrmecochory: non-myrmecochorous (b) ?

Belowground organs and clonality

  • Position of root buds: lateral roots ?
  • Role of root buds in life-history of a plant: additive ?
  •   Bud bank ?
  • Number of buds per shoot at the soil surface (root buds excluded): 5
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded): 15
  • Number of buds per shoot at a depth greater than 10 cm (root buds excluded): 0
  • Size of the belowground bud bank (root buds excluded): 20
  • Depth of the belowground bud bank (root buds exluded) [cm]: 4
  • Number of buds per shoot at the soil surface (root buds included): 5
  • Number of buds per shoot at a depth of 0–10 cm (root buds included): 26
  • Number of buds per shoot at a depth greater than 10 cm (root buds included): 15
  • Size of the belowground bud bank (root buds included): 46
  • Depth of the belowground bud bank (root buds included) [cm]: 8

Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic ?
  • Carnivory: non-carnivorous ?
  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts ?

Karyology

  • Chromosome number (2n): 22 ?
  • Ploidy level (x): 2 ?
  • 2C genome size [Mbp]: 709.49 ?
  • 1Cx monoploid genome size [Mbp]: 354.74 ?
  • Genomic GC content: 38 % ?

Taxon origin

  • Origin in the Czech Republic: native ?

Ecological indicator values

  •   Ellenberg-type indicator values
  • Light indicator value: 6x - transition between values 5 and 7; rarely at less than 20% of diffuse radiation incident in an open area (generalist) ?
  • Temperature indicator value: 5 - moderate heat indicator, occurring from lowland to montane belt, mainly in submontane-temperate areas ?
  • Moisture indicator value: 5x - indicator of fresh soils, focus on soils of average moisture, missing on wet and on soils that frequently dry out (generalist) ?
  • Reaction indicator value: 6x - transition between values 5 and 7 (generalist) ?
  • Nutrient indicator value: 6 - transition between values 5 and 7 ?
  • Salinity indicator value: 0 - not salt tolerant, glycophyte ?
  •   Indicator values for disturbance ?
  • Whole-community disturbance frequency indicator value: -1.93
  • Herb layer disturbance frequency indicator value: -0.82
  • Whole-community disturbance severity indicator value: 0.23
  • Herb layer disturbance severity indicator value: 0.06
  • Whole-community structure based disturbance indicator value: 0.08
  • Herb layer structure-based disturbance indicator value: 0.16

Habitat and sociology

  •   Occurrence in habitats ?
  •   1 Vegetation of cliffs, screes and walls
  • 1A Calcareous cliffs: 1 - rare occurrence
  • 1B Siliceous cliffs and block fields: 1 - rare occurrence
  • 1D Mobile calcareous screes: 1 - rare occurrence
  •   5 Vegetation of springs and mires
  • 5A Hard-water springs with tufa formation: 1 - rare occurrence
  •   8 Dry grasslands
  • 8A Hercynian dry grasslands on rock outcrops: 1 - rare occurrence
  • 8B Submediterranean dry grasslands on rock outcrops: 1 - rare occurrence
  • 8D Broad-leaved dry grasslands: 1 - rare occurrence
  • 8F Thermophilous forest fringe vegetation: 1 - rare occurrence
  •   11 Heathlands and scrub
  • 11A Dry lowland to subalpine heathlands: 1 - rare occurrence
  • 11H Subalpine deciduous scrub: 1 - rare occurrence
  • 11J Willow galleries of loamy and sandy river banks: 1 - rare occurrence
  • 11L Tall mesic and xeric shrub: 3 - dominant
  • 11N Low xeric scrub: 1 - rare occurrence
  • 11R Scrub and pioneer woodland of forests clearings: 1 - rare occurrence
  •   12 Forests
  • 12A Alder carrs: 1 - rare occurrence
  • 12B Alluvial forests: 2 - optimum
  • 12C Oak-hornbeam forests: 2 - optimum
  • 12D Ravine forests: 2 - optimum
  • 12E Herb-rich beech forests: 1 - rare occurrence
  • 12F Limestone beech forests: 2 - optimum
  • 12G Acidophilous beech forests: 1 - rare occurrence
  • 12H Peri-Alpidic basiphilous thermophilous oak forests: 2 - optimum
  • 12I Sub-continental thermophilous oak forests: 2 - optimum
  • 12J Acidophilous thermophilous oak forests: 2 - optimum
  • 12K Acidophilous oak forests: 2 - optimum
  • 12L Boreo-continental pine forests: 1 - rare occurrence
  • 12O Peri-Alpidic pine forests: 2 - optimum
  • 12T Robinia pseudacacia plantations: 1 - rare occurrence
  • 12U Plantations of broad-leaved non-native trees: 1 - rare occurrence
  • 12V Spruce plantations: 2 - optimum
  • 12W Pine and larch plantations: 2 - optimum
  •   13 Anthropogenic vegetation
  • 13F Herbaceous vegetation of forests clearings and Rubus scrub: 1 - rare occurrence
  •   Affinity to the forest environment ?
  • Affinity to the forest environment in Thermophyticum: 2.1 - taxon occurring both in the forest and open vegetation
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 2.1 - taxon occurring both in the forest and open vegetation
  •   Diagnostic taxon ?
  •   Constant taxon ?
  •   Dominant taxon ?
  •   Ecological specialization indices ?
  • Ecological specialization index for all vegetation types: 4.6
  • Ecological specialization index for non-forest vegetation: 3.6
  • Ecological specialization index for forest vegetation: 4.8

Distribution and frequency

  • Floristic zone: boreal, northern temperate, southern temperate, submeridional, meridional ?
  • Floristic region: Europe ?
  • Distribution range extension along the continentality gradient: 5 ?
  • Elevational belt in the Czech Republic: lowlands, colline belt, submontane belt (subalpine belt) ?
  • Occurrence frequency in the basic grid mapping cells and in quadrants of the basic grid mapping cells: 642, 2258 ?
  •   Commonness in vegetation plots from the Czech Republic ?
  • Occurrence frequency in vegetation plots: 2.6 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 29.3 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 10.4 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 3.8 %
  • Mean percentage cover in vegetation plots: 9.3 %
  • Maximum percentage cover in vegetation plots: 99 %
  •   Number of habitats with taxon occurrence in the Czech Republic ?
  • Number of narrow habitats in which the taxon occurs: 32
  • Number of narrow habitats in which the taxon has its optimum: 12
  • Number of broad habitats in which the taxon occurs: 6
  • Number of broad habitats in which the taxon has its optimum: 2

Threats and protection

  • Red List 2017 (national categories): taxon is not on the Red List ?
  • Red List 2017 (IUCN categories): LC(NA) - least concern (taxon is not on the Red List) ?
  • Legal protection: not protected by law ?

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