Forest management impacts on capercaillie (Tetrao urogallus) habitat distribution and connectivity in the Carpathians
Distribution and connectivity of suitable habitat for species of conservation concern is critical for effective conservation planning. Capercaillie (Tetrao urogallus), an umbrella species for biodiversity conservation, is increasingly threatened because of habitat loss and fragmentation.
We assessed the impact of drastic changes in forest management in the Carpathian Mountains, a major stronghold of capercaillie in Europe, on habitat distribution and connectivity.
We used field data surveys with a forest disturbance dataset for 1985–2010 to map habitat suitability, and we used graph theory to analyse habitat connectivity.
Climate, topography, forest proportion and fragmentation, and the distance to roads and settlements best identified capercaillie presence. Suitable habitat area was 7510 km2 in 1985; by 2010, clear-cutting had reduced that area by 1110 km2. More suitable habitat was lost inside protected areas (571 km2) than outside (413 km2). Habitat loss of 15 % reduced functional connectivity by 33 % since 1985.
Forest management, particularly large-scale clear-cutting and salvage logging, have substantially diminished and fragmented suitable capercaillie habitat, regardless of the status of forest protection. Consequently, larger areas with suitable habitat are now isolated and many patches are too small to sustain viable populations. Given that protection of capercaillie habitat would benefit many other species, including old-growth specialists and large carnivores, conservation actions to halt the loss of capercaillie habitat is urgently needed. We recommend adopting policies to protect natural forests, limiting large-scale clear-cutting and salvage logging, implementing ecological forestry, and restricting road building to reduce forest fragmentation.
KeywordsForest management Clear-cutting Carpathian Ecoregion Connectivity Forest disturbance Habitat fragmentation Habitat modelling Umbrella species
We thank three anonymous reviewers for their constructive and helpful comments on the manuscript. This study was supported by Czech Science Foundation project (GACR 15-14840S) and Czech University of Life Sciences, Prague (CIGA No. 20154316). TK gratefully acknowledges support by the Einstein Foundation Berlin.
- Bohn U, Gollub G, Hettwer C, Weber H, Neuhäuslová Z, Raus T, Schlüter H (2004) Karte der natürlichen Vegetation Europas [Map of the natural vegetation of Europe]. Landwirtschaftsverlag, MünsterGoogle Scholar
- Bouriaud L (2005) Causes of illegal logging in Central and Eastern Europe. Small Scale For Econ Manag Policy 4:269–292Google Scholar
- Braunisch V, Suchant R (2013) The capercaillie Tetrao urogallus action plan in the black forest: an integrative concept for the conservation of a viable population. Vogelwelt 134:29–41Google Scholar
- CERI (2001) The status of the Carpathians WWF—Danube-Carpathian programme. Carpathian Ecoregion Initiative, ViennaGoogle Scholar
- Dormann CF, Elith J, Bacher S, Buchmann C, Carl G, Carré G, Marquéz JRG, Gruber B, Lafourcade B, Leitão PJ, Münkemüller T, Mcclean C, Osborne PE, Reineking B, Schröder B, Skidmore AK, Zurell D, Lautenbach S (2013) Collinearity: A review of methods to deal with it and a simulation study evaluating their performance. Ecography 36:027–046CrossRefGoogle Scholar
- FAO (2010) Global forest resources assessment 2010. Food and Agricultural Organization of the United Nations, RomeGoogle Scholar
- Griffiths P, Kuemmerle T, Baumann M, Radeloff VC, Abrudan IV, Lieskovsky J, Munteanu C, Ostapowicz K, Hostert P (2014) Forest disturbances, forest recovery, and changes in forest types across the Carpathian ecoregion from 1985 to 2010 based on Landsat image composites. Remote Sens Environ 151:72–88CrossRefGoogle Scholar
- Grimm V, Storch I (2000) Minimum viable population size of capercaillie Tetrao urogallus : results from a stochastic model. Wildl Biol 6:219–225Google Scholar
- Hjeljord O, Wegge P, Rolstad J, Ivanova M, Beshkarev AB (2000) Spring-summer movements of male capercaillie Tetrao urogallus: a test of the ‘landscape mosaic’ hypothesis. Wildl Biol 6:251–256Google Scholar
- Mikoláš M, Kalafusová I, Tejkal M, Černajová I, Zuzana M, Hlásny T, Barka I, Zrníková K, Bače R, Svoboda M (2013) Habitat conditions of the core population of the Western Capercaillie (Tetrao urogallus) in the Western Carpathians: is there still place for the species in Slovakia? Sylvia 49:79–98Google Scholar
- Paillet Y, Bergès L, Hjältén J, Ódor P, Avon C, Bernhardt-römermann M, Bijlsma RJ, De Bruyn L, Fuhr M, Grandin U, Kanka R, Lundin L, Luque S, Magura T, Matesanz S, Mészáros I, Sebastià MT, Schmidt W, Standovár T, Tóthmérész B, Uotila A, Valladares F, Vellak K, Virtanen R (2010) Compromises in data selection in a meta-analysis of biodiversity in managed and unmanaged forests: response to Halme et al. Conserv Biol 24:1157–1160PubMedCrossRefGoogle Scholar
- Pakkala T, Pellikka J, Lindén H (2003) Capercaillie Tetrao urogallus—a good candidate for an umbrella species in taiga forests. Wildl Biol 4:309–316Google Scholar
- Riley SJ, Gloria SD, Elliot R (1999) A terrain ruggedness index that quantifies topographic heterogeneity. Int J Sci 5:1–4Google Scholar
- Saniga M (2002) Habitat features of the capercaillie (Tetrao urogallus) leks in the West Carpathians. J For Sci 48:415–424Google Scholar
- Saniga M (2003) Ecology of the capercaillie (Tetrao urogallus) and forest management in relation to its protection in the West Carpathians. J For Sci 49:229–239Google Scholar
- Simpson M, Prots B (2012) Predicting the distribution of invasive plants in the Ukrainian Carpathians under climatic change and intensification of anthropogenic disturbances: implications for biodiversity conservation. Environ Conserv 40:1–15Google Scholar
- Storch I (1995) Habitat requirements of capercaillie. Proc Int Symp Grouse 6:151–154Google Scholar
- Storch I (2000) Conservation status and threats to grouse worldwide: an overview. Wildl Biol 6:195–204Google Scholar
- Storch I, Leidenberger C (2003) Tourism, mountain huts and distribution of corvids in the Bavarian Alps, Germany. Wildl Biol 9:301–308Google Scholar
- Storch I, Segelbacher G (2000) Genetic correlates of spatial population structure in central European capercaillie Tetrao urogallus and black grouse T. tetrix: a project in progress. Wildl Biol 6:305–310Google Scholar
- Svoboda M, Janda P, Bače R, Fraver S, Nagel TA, Rejzek J, Mikoláš M, Douda J, Boublík K, Šamonil P, Čada V, Trotsiuk V, Teodosiu M, Bouriaud O, Biriş AI, Sýkora O, Uzel P, Zelenka J, Sedlák V, Lehejček J (2014) Landscape-level variability in historical disturbance in primary Picea abies mountain forests of the Eastern Carpathians, Romania. J Veg Sci 25:386–401CrossRefGoogle Scholar
- UNEP (2007) Carpathians environment outlook. United Nations Environment Programme, GenevaGoogle Scholar
- Vogt P (2015) GuidosToolbox (graphical user interface for the description of image objects and their shapes): digital image analysis software collection available at the following web site: http://forest.jrc.ec.europa.eu/download/software/guidos. Accessed 9 April 2016