Full text of this article is only available in PDF format.

Ari Nikula (email), Ville Hallikainen, Risto Jalkanen, Mikko Hyppönen, Kari Mäkitalo

Modelling the factors predisposing Scots pine to moose damage in artificially regenerated sapling stands in Finnish Lapland

Nikula A., Hallikainen V., Jalkanen R., Hyppönen M., Mäkitalo K. (2008). Modelling the factors predisposing Scots pine to moose damage in artificially regenerated sapling stands in Finnish Lapland. Silva Fennica vol. 42 no. 4 article id 235. https://doi.org/10.14214/sf.235

Abstract

Moose (Alces alces) damage in forest plantations have been at a high level in Finland in recent decades. Nowadays, moose is the most severe pest in Scots pine plantations also in Finnish Lapland. So far, despite the high level of damage and different bio-geographical conditions in Northern Finland, most of the moose-damage research has been carried out in Southern Finland. A number of research have also been performed to analyse factors affecting browsing but predictive models are rare. Data from 123 randomly selected and artificially regenerated pine plantations in Northern Finland were used in modelling the risk of moose browsing. The stands had been regenerated during 1984–1995. A total of 508 sample plots (range 2–8 plots per stand) were measured. Hierarchical logistic regression models with a random factor were constructed to predict the probability of leader-shoot browsing of pine on a plot. The number of planted pines and deciduous trees overtopping the pines were the most important predictors increasing the browsing probability. The results support earlier findings that deciduous trees overtopping or reaching the height of the pines should be cleaned from the immediate vicinity of the pines. Seedlings with a height ranging from 75 to 299 centimetres were more susceptible to browsing. Heavy soil scarification, such as ploughing or mounding, increased the browsing probability compared with lighter scarification methods. Soil type did not affect the browsing probability, but paludification decreased it. The within-stand variation in deciduous trees density and height should be taken into account in future moose browsing risk assessments. In Lapland, high moose damage risk areas are characterized by a low elevation and higher temperature sum.

Keywords
Pinus sylvestris; boreal forest; forestry; Alces alces; damage; modelling

Author Info
  • Nikula, Finnish Forest Research Institute, Rovaniemi Research Unit, Eteläranta 55, FI-96300 Rovaniemi, Finland E-mail ari.nikula@metla.fi (email)
  • Hallikainen, Finnish Forest Research Institute, Rovaniemi Research Unit, Eteläranta 55, FI-96300 Rovaniemi, Finland E-mail vh@nn.fi
  • Jalkanen, Finnish Forest Research Institute, Rovaniemi Research Unit, Eteläranta 55, FI-96300 Rovaniemi, Finland E-mail rj@nn.fi
  • Hyppönen, Finnish Forest Research Institute, Rovaniemi Research Unit, Eteläranta 55, FI-96300 Rovaniemi, Finland E-mail mh@nn.fi
  • Mäkitalo, Finnish Forest Research Institute, Rovaniemi Research Unit, Eteläranta 55, FI-96300 Rovaniemi, Finland E-mail km@nn.fi

Received 14 January 2008 Accepted 22 August 2008 Published 31 December 2008

Views 3618

Available at https://doi.org/10.14214/sf.235 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Virtanen T., Neuvonen S. et al. (1996) Climate change and the risks of Neodiprion serti.. Silva Fennica vol. 30 no. 2–3 article id 5584
Vauhkonen J., Matala J. et al. (2023) Future browsing damage in seedling stands accord.. Silva Fennica vol. 57 no. 2 article id 23012
Nikula A., Nivala V. et al. (2019) Modelling the effect of habitat composition and .. Silva Fennica vol. 53 no. 1 article id 9918
Ruuhola T., Nikula A. et al. (2016) Effects of bedrock and surficial deposit composi.. Silva Fennica vol. 50 no. 3 article id 1565
Nevalainen S., Matala J. et al. (2016) Moose damage in National Forest Inventories (198.. Silva Fennica vol. 50 no. 2 article id 1410
Miettinen J., Helle P. et al. (2010) Capercaillie (Tetrao urogallus) habitat characte.. Silva Fennica vol. 44 no. 2 article id 151
Miettinen J., Helle P. et al. (2009) Changes in landscape-scale habitat selection of .. Silva Fennica vol. 43 no. 4 article id 182
Nikula A., Hallikainen V. et al. (2008) Modelling the factors predisposing Scots pine to.. Silva Fennica vol. 42 no. 4 article id 235