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Broadleaf retention benefits to bird diversity in mid-rotation conifer production stands

Lindbladh, Matts and Elmberg, Johan and Hedwall, Per-Ola and Holmström, Emma and Felton, Adam (2022). Broadleaf retention benefits to bird diversity in mid-rotation conifer production stands. Forest Ecology and Management. 515 , 120223
[Research article]

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Abstract

Retention forestry involves saving important forest structures for flora and fauna during the final felling of a stand, including dead wood and variable amounts of living trees, i.e. green tree retention (GTR). Here we evaluate the long-term effects on avian diversity from GTR by surveying forest birds in 32 mid-rotation stands in southern Sweden, in which broadleaf GTR was present or absent. Complementing the many studies that have assessed GTR in clear-cuts, our results indicated that bird assemblages can also benefit from broadleaf GTR several decades after final felling in conifer dominated production stands. The GTR stands harboured a higher bird abundance and species richness than the control stands without GTR, and also appears to have benefited several important guilds, such as broadleaf-associated birds and cavity nesters. However, variation in the number trees retained, the species composition of retained trees, and their environmental context within the stand (e.g. density and proximity of surrounding production trees), limited our capacity to detect threshold requirements for GTR. In summary, our study provides a "glimpse into the future" as mid-rotation production stands with such old and large retained trees are unusual in today's landscape, but are expected to become more common in the decades to come, in Sweden and many other nations. Our study thereby provides provisional support for the continued and future use of this practice, and indicates that the biodiversity contribution of retention trees continues to occur several decades into the stand's rotation.

Authors/Creators:Lindbladh, Matts and Elmberg, Johan and Hedwall, Per-Ola and Holmström, Emma and Felton, Adam
Title:Broadleaf retention benefits to bird diversity in mid-rotation conifer production stands
Series Name/Journal:Forest Ecology and Management
Year of publishing :2022
Volume:515
Article number:120223
Number of Pages:10
Publisher:ELSEVIER
ISSN:0378-1127
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:Avifauna, Biodiversity, Broadleaved forest, Forest birds, Green tree retention, Norway spruce, Production forests
URN:NBN:urn:nbn:se:slu:epsilon-p-117992
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-117992
Additional ID:
Type of IDID
DOI10.1016/j.foreco.2022.120223
Web of Science (WoS)000803999200005
ID Code:28609
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:26 Aug 2022 12:01
Metadata Last Modified:26 Aug 2022 12:11

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