Versluijs, Martijn and Hekkala, Anne-Maarit and Lindberg, Eva and Lämås, Tomas and Hjältén, Joakim
(2020).
Comparing the effects of even-aged thinning and selective felling on boreal forest birds.
Forest Ecology and Management. 475
, 118404
[Research article]
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Abstract
Biodiversity is in decline and therefore alternative forest management approaches have gained interest. One of such approaches is uneven-aged silviculture, which has been suggested to better maintain mature or late-successional forest characteristics and species assemblages than even-aged silviculture. Therefore, it is assumed that uneven-aged silviculture can be a useful tool for landscape planning to benefit biodiversity. Nevertheless, there is a lack of empirical studies regarding bird responses to uneven-aged silviculture in north European boreal ecosystems. Here we test the similarity of bird assemblage structure between mature forests within even-aged silviculture (‘thinning’) and uneven-aged silviculture (‘selective felling’). In spring 2018 we censused breeding birds using territory mapping in 14 thinned stands and 14 selectively felled stands. We found higher abundance and different bird assemblages in thinned stands compared to selectively felled stands. The pied flycatcher, tree pipit and great tit contributed most to the variation of bird assemblages between the two management types. None of the species were more abundant in selectively felled than in thinned stands. According to functional guilds, the abundance of ground breeders, ground feeders and generalists was higher in thinned stands than in selectively felled stands, similar results were found in the species richness of long-distance migrants, ground nesters, secondary cavity nesters and generalists. Independent of management type, time since treatment had an overall effect on assemblage structures, the mistle thrush and wren were negatively correlated with time since treatment, while the chiffchaff showed the opposite trend. Our results suggest that at these locations and given this particular type of uneven-age management, selective felling is less suitable for some abundant generalists than even-aged forest stands reaching the thinning age. However, the results from this study does not provide clear management recommendations aiming to maintain biodiversity, as management guidelines should be based on red-listed species and not on common generalists. Nevertheless, our results stresses the urgent need for more long-term studies comparing the effect of these different silvicultural strategies on bird assemblages. © 2020 The Author(s)
Authors/Creators: | Versluijs, Martijn and Hekkala, Anne-Maarit and Lindberg, Eva and Lämås, Tomas and Hjältén, Joakim | ||||||
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Title: | Comparing the effects of even-aged thinning and selective felling on boreal forest birds | ||||||
Series Name/Journal: | Forest Ecology and Management | ||||||
Year of publishing : | 2020 | ||||||
Volume: | 475 | ||||||
Article number: | 118404 | ||||||
Number of Pages: | 9 | ||||||
ISSN: | 0378-1127 | ||||||
Language: | English | ||||||
Publication Type: | Research article | ||||||
Article category: | Scientific peer reviewed | ||||||
Version: | Published version | ||||||
Full Text Status: | Public | ||||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Fish and Wildlife Management (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science | ||||||
Keywords: | Bird assemblages, Forest management, Field experiment, Uneven-aged silviculture, Even-aged silviculture | ||||||
URN:NBN: | urn:nbn:se:slu:epsilon-p-109044 | ||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109044 | ||||||
Additional ID: |
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ID Code: | 24588 | ||||||
Faculty: | S - Faculty of Forest Sciences | ||||||
Department: | (S) > Dept. of Wildlife, Fish and Environmental Studies (S) > Dept. of Forest Resource Management (NL, NJ) > Dept. of Forest Resource Management | ||||||
Deposited By: | SLUpub Connector | ||||||
Deposited On: | 21 Jun 2021 14:47 | ||||||
Metadata Last Modified: | 21 Jun 2021 14:51 |
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