Temporal persistence of edge effects on bryophytes within harvested forests

Baker, Thomas P.; Baker, Susan; Dalton, Patrick J.; Fountain-Jones, Nicholas M.; Jordan, Gregory J.

doi:10.1016/j.foreco.2016.05.044

Cited by 10 publications

(13 citation statements)

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“…However, the indirect effects did become more prominent as the regeneration forest aged, suggesting that distance‐related patterns on environment and the flow‐on effects on communities may take time to develop. Temporal variability in community responses to forest influence have been shown at these same wet eucalypt forest sites for bryophytes (Baker, Baker, et al., ), vascular plants (Balmer, ) and ground‐active beetles (Fountain‐Jones, Jordan, Baker, Balmer, & Baker, ).…”

Section: Discussionmentioning

confidence: 81%

“…Previous research from the same experimental study as the current paper showed that distance to a mature forest edge impacts bryophyte re‐colonization (Baker, Baker, Dalton, Fountain‐Jones, & Jordan, ). While the impact of a standing forest edge on disturbed areas is often referred to as ‘forest influence’ (Baker, Spies , et al., ), the mechanisms by which it acts on re‐colonization are not clear.…”

Section: Introductionmentioning

confidence: 69%

“…Bryophyte community composition and environmental conditions were studied at 12 sites in Tasmania's southern forests (sites and experimental design as per Baker, Baker, et al. (). All sites consisted of a harvested area (~60 ha) regenerating following clear‐fell, burn and sow silviculture (clear‐cutting) that shared a boundary with a mature forest dominated by Eucalyptus obliqua and/or E. regnans and had an understorey dominated by rain forest trees.…”

Section: Methodsmentioning

confidence: 99%

“…In addition to the ground and coarse woody debris (CWD; over 10 cm in diameter), substrates examined in Baker, Baker, et al. (), species cover was also recorded on exposed roots of living trees and on rocks. These four substrates represent the most common microsites of bryophytes across all ages in this forest type.…”

Section: Methodsmentioning

confidence: 99%

“…In this study we build on concurrent sampling which showed that, within regenerating forests, bryophyte community composition and forest microclimate conditions are affected by the distance to a mature forest edge (forest influence; Baker et al., ; Baker, Baker, et al., ). Using model selection and path analysis, we aim to determine whether the observed distance response of bryophyte communities is driven by indirect effects (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Distance, environmental and substrate factors impacting recovery of bryophyte communities after harvesting

Baker

Jordan

Fountain‐Jones

et al. 2017

Applied Vegetation Science

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Aims: Bryophyte re-colonization after disturbance is largely governed by environmental conditions within disturbed forests. In particular, distance to a forest edge is an important predictor of bryophyte community re-colonization, through either direct constraints, such as dispersal limitation, or indirectly by altering environmental conditions. This study examines a range of factors -environmental, distance to an edge, substrate specific environment or local-level environment -to determine which are important in the re-colonization of bryophyte communities after forest harvesting. As bryophyte communities vary with the particular substrate inhabited, responses were examined across four substrates (rock, exposed roots, ground and CWD). Location: Tasmanian southern forests, Australia.Methods: Bryophyte composition was examined on four substrates (ground, coarse wood debris, exposed roots, rocks) within three ages (~7, ~27 and ~45 years postdisturbance) of harvested wet eucalypt forest. Re-colonization success of bryophyte communities was determined by comparing communities in regeneration forest to mature forest communities using axis scores from one-dimensional constrained ordination.The importance of various environmental conditions for re-colonization success was then modelled. Finally, path analysis was used to determine whether the impact of distance to a forest edge was meditated through its effects on key environmental variables. Results:Multiple environmental factors impacted re-colonization of mature bryophyte communities. Local-level conditions such as microclimate (temperature, humidity and VPD) and LAI were the most important in determining re-colonization across substrates. Path analysis showed that distance to a forest edge had a significant impact on re-colonization success, but only a relatively small part of this was mediated through its impact on environmental factors. Conclusions:Bryophyte re-colonization is driven by a combination of microclimate conditions and factors related to distance from a forest edge (most likely dispersal distance). While some substrate-specific factors impact bryophyte re-colonization success, the consistent impact of local environmental factors across substrates suggests that harvesting management strategies that develop more 'mature' microclimate conditions and increase proximity to nearby mature forest patches will be beneficial Nomenclature: Online catalogue of Australian mosses (AusMoss) for mosses; Checklist of Australian Liverworts and Hornworts (http://www.anbg.gov.au) | 65

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Section: Discussionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 69%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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