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A survey of mammalian browsing damage in Tasmanian eucalypt plantations

Citation

Bulinski, J, A survey of mammalian browsing damage in Tasmanian eucalypt plantations, Australian Forestry, 62, (1) pp. 59-65. ISSN 0004-9158 (1999) [Refereed Article]

DOI: doi:10.1080/00049158.1999.10674764

Abstract

Eucalypt seedlings growing in Tasmanian forestry plantations can be damaged by the Bennett's wallaby (Macropus rufogriseus), Tasmanian pademelon (Thylogale billardierii), common brushtail possum (Trichosurus vulpecula) and rabbit (Oryctolagus cuniculus). This paper reports the results of damage surveys carried out during 1994 to 1997 at 32 Eucalyptus nitens and 3 Eucalyptus globulus plantations. Browsing damage was evident at all 35 plantations. The percentage of seedlings damaged ranged from 14 to 97% at six months after planting and from 17 to 100% at 12 months. Mean browse score (MBS) ranged from 0.2 to 3.8 at six months and from 0.2 to 4.7 at 12 months. There was a strong exponential relationship between these two measures of damage. Browsing damage was estimated to have reduced firstyear E. nitens growth rates by between 12 and 100% (mean = 36, sd = 22.9). The mean percentage of seedlings recorded with browsing damage at plantations where 1080 poisoning operations had been carried out (12 months: mean = 50, sd = 26.7) was significantly lower (P < 0.01) than for plantations where 1080 was not used (mean = 84, sd = 18.5). The mean browse score recorded at poisoned plantations (12 months: mean = 1.2, sd = 1.14) was also significantly lower (P < 0.05) than that recorded for unpoisoned plantations (mean = 2.1, sd = 0.70). Seedling survival to 12 months was generally high (mean = 88%, sd = 10.7) and there was little evidence to suggest that survival of E. nitens during the first year following planting was strongly influenced by browsing damage.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Forestry Pests, Health and Diseases
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Animal Pests, Diseases and Exotic Species in Forest and Woodlands Environments
Author:Bulinski, J (Dr James Bulinski)
ID Code:16281
Year Published:1999
Deposited By:Zoology
Deposited On:1999-08-01
Last Modified:2000-05-22
Downloads:0

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