Introduced deer at low densities do not inhibit the regeneration of a dominant tree

Peter J. Bellingham, Sarah J. Richardson, Norman W.H. Mason, Clare J. Veltman, Robert B. Allen, Will J. Allen, Richard J. Barker, David M. Forsyth, Simon J. Nicol, David S.L. Ramsey

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Deer have been introduced to forests worldwide as non-native invasive species. Red deer (Cervus elaphus scoticus) were introduced to New Zealand in 1851, became abundant throughout its forests, then their populations declined to current, typically low densities. It is uncertain whether browsing by red deer at low densities reduces growth and survival of seedlings of the dominant trees in New Zealand forests. We investigated this experimentally in a cool temperate rain forest dominated by mountain beech (Fuscospora cliffortioides, Nothofagaceae). Mountain beech regeneration depends on stand-level disturbances. Red deer are thought to exert strongest effects on regeneration in canopy gaps. Our factorial design was creation of canopy gaps, by felling trees, contrasted with intact canopies, and fencing to completely exclude deer, and unfenced treatments. We measured growth and mortality of mountain beech seedlings (initially 15-135 cm tall) in plots after 6. years. Seedling growth rates were much greater in canopy gaps than under intact canopies. They were greatest in gaps from which deer were excluded and the seedlings that were largest when gaps were created grew most rapidly. Mortality of seedlings was largely related to initial size and rates were greater in canopy gaps because of self-thinning. We conclude that red deer, at current low densities, affect the regeneration of the dominant canopy tree of these forests slightly, but at levels that are unlikely to prevent canopy replacement. Forest managers should focus efforts on managing deer and their effects on forest regeneration in the period that follows major canopy disturbance.

Original languageEnglish
Pages (from-to)70-76
Number of pages7
JournalForest Ecology and Management
Volume364
DOIs
Publication statusPublished - 15 Mar 2016
Externally publishedYes

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Cervus elaphus
canopy gaps
deer
regeneration
canopy
canopy gap
Fagus
seedlings
seedling
mountains
Nothofagaceae
forest regeneration
felling
mountain
browsing
temperate forests
forest trees
thinning (plants)
invasive species
seedling growth

Cite this

Bellingham, P. J., Richardson, S. J., Mason, N. W. H., Veltman, C. J., Allen, R. B., Allen, W. J., ... Ramsey, D. S. L. (2016). Introduced deer at low densities do not inhibit the regeneration of a dominant tree. Forest Ecology and Management, 364, 70-76. https://doi.org/10.1016/j.foreco.2015.12.013
Bellingham, Peter J. ; Richardson, Sarah J. ; Mason, Norman W.H. ; Veltman, Clare J. ; Allen, Robert B. ; Allen, Will J. ; Barker, Richard J. ; Forsyth, David M. ; Nicol, Simon J. ; Ramsey, David S.L. / Introduced deer at low densities do not inhibit the regeneration of a dominant tree. In: Forest Ecology and Management. 2016 ; Vol. 364. pp. 70-76.
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Bellingham, PJ, Richardson, SJ, Mason, NWH, Veltman, CJ, Allen, RB, Allen, WJ, Barker, RJ, Forsyth, DM, Nicol, SJ & Ramsey, DSL 2016, 'Introduced deer at low densities do not inhibit the regeneration of a dominant tree', Forest Ecology and Management, vol. 364, pp. 70-76. https://doi.org/10.1016/j.foreco.2015.12.013

Introduced deer at low densities do not inhibit the regeneration of a dominant tree. / Bellingham, Peter J.; Richardson, Sarah J.; Mason, Norman W.H.; Veltman, Clare J.; Allen, Robert B.; Allen, Will J.; Barker, Richard J.; Forsyth, David M.; Nicol, Simon J.; Ramsey, David S.L.

In: Forest Ecology and Management, Vol. 364, 15.03.2016, p. 70-76.

Research output: Contribution to journalArticle

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T1 - Introduced deer at low densities do not inhibit the regeneration of a dominant tree

AU - Bellingham, Peter J.

AU - Richardson, Sarah J.

AU - Mason, Norman W.H.

AU - Veltman, Clare J.

AU - Allen, Robert B.

AU - Allen, Will J.

AU - Barker, Richard J.

AU - Forsyth, David M.

AU - Nicol, Simon J.

AU - Ramsey, David S.L.

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Y1 - 2016/3/15

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Bellingham PJ, Richardson SJ, Mason NWH, Veltman CJ, Allen RB, Allen WJ et al. Introduced deer at low densities do not inhibit the regeneration of a dominant tree. Forest Ecology and Management. 2016 Mar 15;364:70-76. https://doi.org/10.1016/j.foreco.2015.12.013