Abstract
Process-orientated, unmanaged forest remnants are not sufficient for halting the loss of forest biodiversity. Thus, integrated biodiversity-promoting management for forest inhabitants is needed. Microhabitats, such as tree cavities or bark pockets, are essential for the preservation of saproxylic species and of critical importance for endangered ones. This study investigates (1) which factors trigger the formation of microhabitats at both the individual tree and aggregated plot level, and (2) whether the co-occurrence of microhabitats differs between managed (=logged) and unmanaged forests. Relationships between the occurrence of 17 microhabitat types and individual tree features (e.g. light availability, and tree vitality) and plot characteristics (e.g. stand density index and stand age) in 398 plots dominated by Fagus sylvatica or Pseudotsuga menziesii in Germany and the USA were studied using random-effects logistic and normal regression modelling. Separate analyses were performed for German beech forests, German Douglas-fir forests, and the US Douglas-fir forests. Our results show that (1) tree diameter in breast height (DBH), tree vitality and branchiness or epicormic branches are highly related with the occurrence of one or more microhabitats on individual trees in managed and unmanaged beech and US Douglas-fir forests. In managed German Douglas-fir forests, vitality is not a predictor for the occurrence of microhabitats on a tree, but tree density and the maximum age of trees in a stand in addition to DBH and branchiness have an effect. Time since last management is not a statistically significant predictor for the presence of microhabitats at the tree level, but it is for German beech at the plot level. In Douglas-fir-dominated forests both in Germany and in the USA, the stand density index was the only common predictor at the plot level. (2) Unmanaged German beech and Douglas-fir forests exhibit more statistically significant and positive correlations with microhabitat groups than managed stands, implying that the presence of one microhabitat group on a tree is associated with the presence of other microhabitat groups. We finally conclude that measures for supporting microhabitat inhabitants in managed forests are scale and species dependent (tree versus plot level; beech versus Douglas-fir-dominated forests). Trees that carry microhabitats seem to have similar features independently of forest management. At the plot level, density management may trigger the accumulation of microhabitats. Our results indicate that in forest management, it is possible to consider the factors influencing the formation of microhabitats and implement adequate forest practices to advance their formation.
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References
Bates D, Maechler M, Bolker B (2014) lme4: linear mixed-effects models using S4 classes. R package version 0.999999-2. http://CRAN.R-project.org/package=lme4
Bauhus J, Puettmann K, Messier C (2009) Silviculture for old-growth attributes. For Ecol Manage 258:525–537
Bollmann K, Braunisch V (2013) To integrate or to segregate: balancing commodity production and biodiversity conservation in European forests. In: Kraus D, Krumm F (eds) Integrative approaches as an opportunity for the conservation of forest biodiversity. European Forest Institute, Joensuu, pp 18–31
Boncina A (2011) Conceptual approaches to integrate nature conservation into forest management: a Central European perspective. Int For Rev 13:13–22
Bouget C, Parmain G, Nusillard B, Paillet Y, Pernot C, Larrieu L, Gosselin F (2014) Does a set aside conservation strategy help restore old-growth attributes and conserve saproxylic beetles in temperate forests? Anim Conserv 19:342–353
Chape S, Spalding MD, Jenkins MD (eds) (2007) The world’s protected areas: status, values and prospects in the 21st century. University of California Press, Berkeley, p 359
Daniel TW, Meyn RL, Moore RR (1979) Reineke’s stand density index in tabular form in English and metric units with its applications. Utah Agricultural Experiment Station, Research Report 37, Logan, Utah
Dudley N (ed) (2008) Guidelines for applying protected area management categories. IUCN, Gland, p 86
IUCN/UNEP/WWF/FAO/UNESCO- International Union for Conservation of Nature, United Nation Environment Programme, World Wide Fund for Nature, Food and Agriculture Organisation, United Nations Economic and Social Commission (1980) World conservation strategy—living resource conservation for sustainable development. International Union for the Conservation of Nature, Gland
Larrieu L, Cabanettes A (2012) Species, live status, and diameter are important tree features for diversity and abundance of tree microhabitats in subnatural montane beech-fir forests. Can J For Res 42(8):1433–1445
Larrieu L, Cabanettes A, Delarue A (2012) Impact of silviculture on dead wood and on the distribution and frequency of tree microhabitats in montane beech-fir forests of the Pyrenees. Eur J For Res 131:773–786
Larrieu L, Cabanettes A, Brin A, Bouget C, Deconchat M (2014) Tree microhabitats at the stand scale in montane beech-fir forests: a practical information for taxa conservation in forestry. Eur J For Res 133:355–367
Lassauce A, Larrieu L, Paillet Y, Lieutier F, Bouget C (2013) The effects of forest age on saproxylic beetle biodiversity: implications of shortened and extended rotation lengths in a French oak high forest. Insect Conserv Divers 6(3):396–410
MacFarlane DW, Luo A (2009) Quantifying tree and forest bark structure with a bark-fissure index. Can J For Res 39:1859–1870
Michel AK, Winter S (2009) Tree microhabitat structures as indicators of biodiversity in Douglas-fir forests of different stand ages and management histories in the Pacific Northwest, USA. For Ecol Manage 257:1453–1464
Michel AK, Winter S, Linde A (2011) The effect of tree diameter on the diversity of bark microhabitat structures and bark usage in Douglas-fir. Can J For Res 41:300–308
Poulin JF, Villard MA, Edman M, Goulet PJ, Eriksson AM (2008) Thresholds in nesting habitat requirements of an old forest specialist, the Brown Creeper (Certhia americana), as conservation targets. Biol Conserv 141:1129–1137
Regnery B, Paillet Y, Couvet D, Kerbiriou C (2013a) Which factors influence the occurrence and density of tree microhabitats in Mediterranean oak forests? For Ecol Manage 295:118–125
Regnery B, Couvet D, Kubarek L, Julien JF, Kerbiriou C (2013b) Tree microhabitats as indicators of bird and bat communities in Mediterranean forests. Ecol Indic 34:221–230
Reineke LH (1933) Perfecting a stand-density index for even-aged forests. J Agric Res 46:627–638
Sheridan CD, Puettmann KJ, Huso MP, Hagar JC, Falk KR (2013) Management, morphological, and environmental factors influencing Douglas-fir bark furrows in the Oregon coast range. West J Appl For 28:97–106
Sondenaa AC (1991) The wild mammals of McDonald and Paul M. Dunn forests. O.S.U. Research Forests and College of Forestry, Oregon State University, Corvallis, Oregon, p 39
Takiya M, Koyama H, Umeki K, Yasaka M, Ohno Y, Watanabe I, Terazawa K (2010) The effects of early and intense pruning on light penetration, tree growth, and epicormic shoot dynamics in a young hybrid larch stand. J For Res 15:149–160
UNESCO—United Nations Educational, Scientific and Cultural Organization (1970) Man and Biosphere Programme. http://www.unesco.org/new/en/cairo/natural-sciences/ecology-and-earth-sciences/ecology/arabmab-network/man-and-biosphere-programme/
van Buuren S, Groothuis-Oudshoorn K (2011) Mice: multivariate imputation by chained equations in R. J Stat Softw 45:1–67
Vonhof MJ, Gwilliam JC (2007) Intra- and interspecific patterns of day roost selection by three species of forest-dwelling bats in southern British Columbia. For Ecol Manage 252:65–175
Vuidot A, Paillet Y, Archaux F, Gosselin F (2011) Influence of tree characteristics and forest management on tree microhabitats. Biol Conserv 144:441–450
Winter S, Brambach F (2011) Determination of a common forest life-cycle assessment method for biodiversity evaluation. For Ecol Manage 262:2120–2132
Winter S, Möller G (2008) Microhabitats in lowland beech forests as monitoring tool for nature conservation. For Ecol Manage 255:1251–1261
Winter S, Flade M, Schumacher H, Kerstan E, Möller G (2005) The importance of near-natural stand structures for the biocoenosis of lowland beech forests. For Snow Landsc Res 79:127–144
Winter S, Fischer HS, Fischer A (2010) Relative quantitative reference approach on naturalness assessments. For Ecol Manage 259:1624–1632
Winter S, Vrska T, Begehold H (2013) Forest Naturalness as a key to forest biodiversity preservation. In: Kraus D, Krumm F (eds) Integrative approaches as an opportunity for the conservation of forest biodiversity. European Forest Institute, Joensuu, pp 52–63
Woodall CW, Fiedler CE, Milner KS (2003) Stand density index in uneven-aged ponderosa pine stands. Can J For Res 33:96–100
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SW: Funding for presentations and travel in USA was provided by the DFG—Deutsche Forschungsgemeinschaft. AKM was co-funded by the Federal State of Brandenburg and the German Federal Government within their higher education and science programme for promoting equal opportunities for women in research and teaching and by the Dr.-Ing. Leonhard-Lorenz-Stiftung at Technische Universität München, Germany. The origin of funding had no effect on the outcomes of this research.
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Communicated by Jörg Müller.
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Winter, S., Höfler, J., Michel, A.K. et al. Association of tree and plot characteristics with microhabitat formation in European beech and Douglas-fir forests. Eur J Forest Res 134, 335–347 (2015). https://doi.org/10.1007/s10342-014-0855-x
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DOI: https://doi.org/10.1007/s10342-014-0855-x