Forest management effects on downed dead wood at stand and landscape scales in a temperate forest of the central United States

Wang, Shunzhong; Knapp, Benjamin O.; Ehlers, Shannon; Graham, Bradley D.; Gao, Xiaoming; Timm, Shelby R.

doi:10.1016/j.foreco.2020.118905

Cited by 4 publications

(3 citation statements)

References 44 publications

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“…Every forest ecosystem has dead wood, a dynamic resource that is produced and controlled by factors such as tree productivity, forest type and age, disturbances such as harvesting, windthrow and snow break, and decomposition rates [11,76]. Dead wood plays a key role in ecosystem processes and functions, such as providing habitat for a variety of species, contributing to complexity of forest structure, and influencing fire behavior [77].…”

Section: Dead Woodmentioning

confidence: 99%

Re-inventories at two study sites in the Oberpfalz (Bavaria, Germany): Increase in RWA nests, herb biodiversity and dead wood in sustainably managed forests

Berberich,

Berberich

2024

Preprint

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The outstanding occurrences of red wood ant nests (RWA; Formica rufa-group) at two study sites in the Oberpfalz, NE Bavaria, Germany, could be confirmed by the 2023 re-inventory (a total of 5,393 nests and an increase by ≈8 %). RWA nests preferred mature and medium mature pine-dominated forests. Standing and downed dead wood do not negatively influence nests. Nest counts with woodpecker cavities and the diversity of the herb layer increased. The highly clustered nests in NW-SE direction suggests a strong interaction between nests distributions and the tectonic environment. Our developed (re-)inventory approach in combination with the comprehensive photo database is a valuable tool for a) monitoring the entire forest habitat including woodpecker cavities and dead wood in, at and around nests, and b) identifying GeoBio-Interactions. Such a comprehensive approach leads to more accurate and realistic counts of RWA nests during (re-)inventories and provides scientific evidence of the status quo of RWA occurrence. Our results disproved the unfounded and scientifically unsubstantiated blanket statement by laymen of the ASW Landesverband Bayern e.V. that RWA nest numbers in the Oberpfalz or even in the entire Bavaria are in sharp decline. We suggest seven to eight years as a suitable time interval for re-inventories.

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Section: Dead Woodmentioning

confidence: 99%

Re-inventories at two study sites in the Oberpfalz (Bavaria, Germany): Increase in RWA nests, herb biodiversity and dead wood in sustainably managed forests

Berberich,

Berberich

2024

Preprint

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“…Every forest ecosystem has dead wood, a dynamic resource that is produced and controlled by factors such as tree productivity, forest type and age, disturbances such as harvesting, windthrow, and snow break, and decomposition rates [10,77]. Dead wood plays a key role in forest ecosystems by providing a habitat for a variety of species, contributing to the complexity of forest structure, and influencing fire behavior [78].…”

Section: No Negative Impact From Dead Woodmentioning

confidence: 99%

Re-Inventories at Two Study Sites in the Oberpfalz (Bavaria, Germany): Increase in RWA Nests, Herb Biodiversity and Dead Wood in Sustainably Managed Forests

Berberich,

Berberich

2024

Sustainability

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A large-scale re-inventory of red wood ant (RWA; Formica rufa-group) nests and a comparative analysis of their presence/absence data was carried out for the first time in 2023 at two study sites in the Oberpfalz, NE Bavaria, Germany, to investigate the suspected decline of nests, their relationship with forestry aspects, and possible changes in spatial distribution due to tectonic activity (GeoBio-Interactions). We inventoried, in two sustainably managed forests, outstanding nest occurrences (5393 nests including 5276 active nests) and an increase of ≈8% over 4–7 years. Our results do not support claims that the number of nests in the Oberpfalz is in sharp decline. RWA preferred mature and medium–mature pine-dominated forests. Standing and downed dead wood did not negatively affect nests. The number of nests with woodpecker cavities and the diversity of the herb layer increased. Nests clusters in NW–SE direction suggest a strong interaction between nest distribution and active tectonics. Our (re-)inventory approach combined with the extensive photo database is a valuable tool for (a) monitoring the entire forest habitat including natural restocking, herb biodiversity, woodpecker cavities, and dead wood in, at, and around nests, and (b) identifying GeoBio-Interactions. Such an approach will lead to more realistic counts of RWA nests and provide scientific evidence of the current situation of nests occurrence. We suggest seven to eight years as an appropriate time interval for re-inventories.

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“…The impact of retention harvesting on CWD volume and important piece characteristics for habitat, and the ability of ALS to detect the impacts, were investigated in this thesis. The effects of harvesting on CWD volume have been well studied (Edmonds, Robert L. et al 1986;Spies and Cline 1988;Hansen et al 1991;Caza 1993;McCarthy and Bailey 1994;Sippola et al 1998Sippola et al , 1998Duvall and Grigal 1999;Siitonen et al 2000;Fridman and Walheim 2000;Siitonen 2001;Stokland 2001;Rouvinen et al 2002;Pedlar et al 2002;Fraver et al 2002;Stevenson et al 2006;Moroni 2006;Jönsson and Jonsson 2007;Brassard and Chen 2008;Vanderwel et al 2008;Morrissey et al 2014;Keren and Diaci 2018;Thorn et al 2020;Koivula and Vanha-Majamaa 2020;Wang et al 2021) but there have been few studies on the CWD piece characteristics that create valuable habitat, and on methods of assessing these characteristics over the landscape. In Chapter 1, I analysed the impact of varying amounts of overstory basal area retention: 0% (clearcut), 40%, 70%, 100% (unharvested) on CWD volume, decay class, and inputs from windthrow over 27 years.…”

Section: Overviewmentioning

confidence: 99%

Long-term effects of timber harvesting on coarse woody debris dynamics and marten habitat

Farnell¹

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At a long-term experimental trial in northern British Columbia, Canada, I analysed the impact of varying amounts of timber retention: 0% (clearcut), 40%, 70%, 100% (unharvested) on CWD volume, decay class, and inputs from windthrow over 27 years. I used attributes (diameter, length, decay class, and height above the ground) known to be favourable to marten to create an index for assessing the impact of harvesting intensity on CWD habitat features. I then used airborne laser scanning (ALS) to predict CWD volume, habitat value, and piece attributes over the landscape. Stands with 70% retention had CWD attributes that resulted in CWD habitat features similar to unharvested stands. Clearcuts contained pieces that were smaller, more decayed, and closer to the ground, which contributed less valuable habitat, compared to stands with higher retention. Windthrown trees were the majority of CWD inputs and volume change was positively related to percent retention.

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Forest management effects on downed dead wood at stand and landscape scales in a temperate forest of the central United States

Cited by 4 publications

References 44 publications

Re-inventories at two study sites in the Oberpfalz (Bavaria, Germany): Increase in RWA nests, herb biodiversity and dead wood in sustainably managed forests

Re-inventories at two study sites in the Oberpfalz (Bavaria, Germany): Increase in RWA nests, herb biodiversity and dead wood in sustainably managed forests

Re-Inventories at Two Study Sites in the Oberpfalz (Bavaria, Germany): Increase in RWA Nests, Herb Biodiversity and Dead Wood in Sustainably Managed Forests

Long-term effects of timber harvesting on coarse woody debris dynamics and marten habitat

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