Leaving Dead Wood for Insects in Boreal Forests - Suggestions for the Future

Ehnström, Bengt

doi:10.1080/028275801300090681

Cited by 87 publications

(59 citation statements)

References 6 publications

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“…Moreover, the presence of dead and decaying wood is a functional requirement not only for animal wildlife, but also Table 2 Examples of studies recognizing deadwood as the main source of resources for living organisms (see also reviews of Table 1) Mycetophilids (Diptera) Norway Økland (1996) Insects in boreal forests Sweden Ehnström (2001) Insects in polypores Sweden Jonsell and Nordlander (2002) Insects in Fomitopsis pinicola Finland Komonen (2003) Coleoptera Germany Kappes and Topp (2004) Gastropods Germany Kappes (2005) Molluscs in mangrove forests Australia Robertson (1991) Arachnida and other litter-dwelling invertebrates New Zealand Evans et al (2003) Bryophytes Sweden Andersson and Hytteborn (1991) Bryophytes Hungary Ódor and Van Hees (2004) Bryophytes and lichens Britain Humphrey et al (2002) for trees. In many cases, the regeneration of a forest only happens when fallen logs decay in situ.…”

Section: For a Functional Ecology Of Decaymentioning

confidence: 99%

Wood-decaying fungi in the forest: conservation needs and management options

2007

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Wood-decaying fungi are essential for the functioning of forest ecosystems. They provide habitat for many other organisms and enable the regeneration of forests throughout the world. Since wood decomposition is a decisive process in nutrient recycling, soil formation and the carbon budget of forest ecosystems, it is receiving increasing attention from forest ecologists, pathologists and managers. Research has focussed on the factors driving the speciesrichness of wood-decomposing organisms and is moving on to analyse the eVects of this species-richness on ecosystem functioning. Coarse woody debris (CWD) and its associated wood-decaying organisms have been drastically reduced in abundance and diversity by forestry and so these features often have potential as conservation indicators. Protective measures at a landscape level are needed for threatened wood-inhabiting fungi. These include restricting salvage operations in windthrow stands, actively encouraging the accumulation of deadwood in forests, and facilitating decay in standing trees by inoculating them with fungi. Here, we aim to collect and summarize recently produced work on deadwood ecology, pointing out research gaps and perspectives.

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Section: For a Functional Ecology Of Decaymentioning

confidence: 99%

Wood-decaying fungi in the forest: conservation needs and management options

2007

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“…Harvesting can also alter the distribution of size and decay class through the mechanical crushing of larger pieces in late-stage decay and through the addition of small diameter slash (Freedman et al 1996;Fraver et al 2002). In some intensively managed forests, many deadwood-dependent species, including fungi and invertebrates, are Red Listed or considered threatened (Lindenmayer et al 1996;Ranius and Jansson 2000;Ehnström 2001;Tikkanen et al 2007), and some species are now extinct (Kirby and Drake 1993).…”

Section: Introductionmentioning

confidence: 98%

Influence of harvest gaps and coarse woody material on click beetles (Coleoptera: Elateridae) in Maine’s Acadian forest

2009

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In order to maintain biodiversity in forests, it has been recommended that harvests be designed after patterns of natural disturbance. Using a long-term study that includes harvest treatments designed to emulate tree-fall gap disturbances in Maine's Acadian forest, we examined how the species richness, abundance, diversity, and assemblage similarity of click beetles inhabiting coarse woody material (CWM) were affected by gap harvesting and CWM characteristics (diameter, degree of decay, and type of wood). There were few differences in beetle assemblages between 0.07 and 0.12 ha harvest gap treatments. Four of the most common species had higher abundances under a closed forest canopy than within harvest gaps. Species richness and total abundance were higher in CWM that had larger diameters and were more decayed. Species assemblages also differed with the degree of wood decomposition. Diversity was higher in CWM from softwood trees than hardwood trees. Results from this study suggest that small (\0.2 ha) harvest gaps with living trees retained throughout the gap can maintain click beetle assemblages similar to that of an unharvested forest. Forest managers also need to address the temporal continuity of CWM, including different types of wood (hardwood and softwood), a range of decay conditions, and a range of diameter classes, especially larger diameters ([35 cm).

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“…The tunnels left after wood-destroying insects can be used as a hiding place for other insects, e.g. wasps (Ehnstrom, 2001). Deadwood can also be used as a lookout post by mammals, e.g.…”

Section: Biotopementioning

confidence: 99%