N.Z.J.Ecol., Volume 17(1), 1993

Table of Contents


Research Article

Ecological Degradation

A. Mark
Pages: 1-4
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Prey Diets and Population-Densities of the Wasps Vespula vulgaris and Vespula germanica in Scrubland-Pasture

R. J. Harris
E. H. Oliver
Pages: 5-12
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Feeding by Captive Rare Birds on Baits Used in Poisoning Operations for Control of Brushtail Possums

E. B. Spurr
Pages: 13-18
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Impact of Invading Brushtail Possum Populations on Mixed Beech- Broadleaved Forests, South Westland, New Zealand

A. B. Rose
C. J. Pekelharing
K. H. Platt
C. B. Woolmore
Pages: 19-28
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Long-Term Trends in Possum Numbers at Pararaki—Evidence of an Irruptive Fluctuation

M. D. Thomas
G. J. Hickling
J. D. Coleman
L. T. Pracy
Pages: 29-34
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Chemical-Features of Chionochloa Species in Relation to Grazing by Ruminants in South Island, New Zealand

M. Fenner
William G. Lee
S. J. Duncan
Pages: 35-40
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Response of Hieracium in 2 Long-Term Manipulative Agricultural Trials

D. Scott
Pages: 41-46
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Interaction between Some Pasture Species and 2 Hieracium Species

D. Scott
B. L. Sutherland
Pages: 47-51
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Time Segment Analysis of Permanent Quadrat Data—Changes in Hieracium Cover in the Waimakariri in 35 Years

D. Scott
Pages: 53-57
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Soil-Ph Declines and Organic-Carbon Increases under Hawkweed (Hieracium pilosella)

P. D. McIntosh
R. B. Allen
Pages: 59-60
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An Appraisal of Monitoring Studies in South Island Tussock Grasslands, New Zealand

R. B. Allen
Pages: 61-63
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Note: 

Includes papers from the 1991 N.Z. Ecological Society workshop, "Vegetation change in tussock grasslands, with emphasis on hawkweeds" (pages 41-58).

Note: For further papers arising from this workshop, see the associated Occasional Publication