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Ease of access to an alternative food source enables wallabies to strip bark in Tasmanian Pinus radiata plantations

Citation

Smith, AH and Ratkowsky, DA and Wardlaw, TJ and Mohammed, CL, Ease of access to an alternative food source enables wallabies to strip bark in Tasmanian Pinus radiata plantations, Forests, 11 Article 387. ISSN 1999-4907 (2020) [Refereed Article]


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Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3390/f11040387

Abstract

Bark stripping by the Bennett’s wallaby (Macropus rufogriseus (Desmarest) subsp. rufogriseus) from the lower stems of 3–6-year-old radiata pine (Pinus radiata D. Don) causes significant damage in Tasmanian plantations. The usual diet of this generalist herbivore is mainly grasses and broadleaved forbs. As the factors that attract a wallaby to supplement its diet by eating the bark of plantation pine trees are currently not elucidated, the present study aimed to determine how the incidence and severity of bark damage in 12 Tasmanian radiata pine plantations was influenced by various inter-site factors such as the floristic composition of the surrounding forest, and by various intra-site factors such as the height and circumference of individual trees, the number of branches in the first two whorls at the base of the tree, and their internode lengths. It was found that the greater the percentages of bare ground, bracken, and moss present in the five plots at each site, and the greater the percentage of grass, the wallaby’s main food source, the greater the likelihood of bark stripping. The difference between the mean minimum soil and air temperatures in spring, a driving force for carbohydrate production that occurs with tree growth in spring or early summer, was the only meteorological observation at the sites that was found to be significantly related to the extent of bark stripping.

Item Details

Item Type:Refereed Article
Keywords:bark stripping, wallabies, supplementary food, radiata pine plantations
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Forest health and pathology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Softwood plantations
UTAS Author:Smith, AH (Dr Anna Smith)
UTAS Author:Ratkowsky, DA (Dr David Ratkowsky)
UTAS Author:Wardlaw, TJ (Dr Timothy Wardlaw)
UTAS Author:Mohammed, CL (Professor Caroline Mohammed)
ID Code:138679
Year Published:2020
Web of Science® Times Cited:1
Deposited By:TIA - Research Institute
Deposited On:2020-04-21
Last Modified:2020-06-12
Downloads:2 View Download Statistics

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