Deadwood

Deadwood is an important element in wooded habitats. Most forests and woodlands contain deadwood. It may occur as dead or rotting branches on a living tree, standing dead trees (known as snags), stumps, logs, or other fallen timber. Deadwood may be large, small, wet, dry, old, recent, coniferous or deciduous. Most woodpeckers need deadwood to thrive. Deadwood is essential habitat for many saproxylic insects which are important prey for many woodpecker species. Woodpeckers also use deadwood for nesting sites or as drumming posts. In Hungary, the White-backed Woodpecker is only found in forests with high levels of deadwood.  One of the forthcoming tasks of our working group will be to identify all the forests with deadwood ecosystems in Hungary and encourage their protection as habitats for White-backed Woodpeckers and other deadwood dependent wildlife. 

Standing dead trees are important for many beetle species and hence as feeding places for woodpeckers. Gerecse Hills. Photo: Gerard Gorman

 

Black Woodpecker foraging work on a dead tree. Spring. Photo: Gerard Gorman
Black Woodpecker foraging work on a dead tree. Winter. Photo: Gerard Gorman
Work of White-backed Woodpecker (Dendrocopos leucotos) on a standing dead tree (snag) in the Zemplén Hills. Photo: Gerard Gorman
Standing dead Common Hornbeam (Carpinus betulus) stripped of its bark and pecked by White-backed Woodpecker (Dendrocopos leucotos). The tiny holes are burrows of Fan-bearing Wood-borer (Ptilinus pectinicornis) a beetle the woodpeckers searched for. Gerecse Hills. Photo: Gerard Gorman

 

Irodalom

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Frank, T. et al. (2021): Védett Natura 2000 tölgyesek természetvédelmi kezelése II. ‒ Erdészeti Lapok 156(10): 8‒11.

Nagy, K. (szerk.) (2021): Nemzeti Szisztematikus Erdőleltár. Nemzeti Földügyi Központ, Erdészeti Főosztály, Budapest, 68 pp.

Ódor, P. (2018): Az álló és a fekvő holtfa. ‒ In: Szmorad et al. (szerk.): Erdőgazdálkodás és erdőkezelés Natura 2000 területeken. Rosalia kézikönyvek 4. ‒ Duna ‒ Ipoly Nemzeti Park Igazgatóság, Budapest, pp. 137-155.