Weeds in pasture ecosystems - symptom or disease?

Grice, A.C. and Campbell, S.D. (2000). Weeds in pasture ecosystems - symptom or disease?. In: 6th Australian Tropical Pastures Conference, Emerald, Australia, (264-270). April 2000.

Author Grice, A.C.
Campbell, S.D.
Title of paper Weeds in pasture ecosystems - symptom or disease?
Conference name 6th Australian Tropical Pastures Conference
Conference location Emerald, Australia
Conference dates April 2000
Journal name Tropical Grasslands   Check publisher's open access policy
Place of Publication St Lucia, QLD, Australia
Publisher Tropical Grassland Society of Australia
Publication Year 2000
Year available 2000
Sub-type Fully published paper
Open Access Status Not yet assessed
ISSN 0049-4763
Volume 34
Issue 3-4
Start page 264
End page 270
Total pages 7
Language eng
Abstract/Summary Plant species that become weeds in pasture ecosystems require the same resources as useful forage plants - light, water, carbon dioxide. oxygen and mineral nutrients. Their weediness stems from the fact that they package those resources in a form that makes them unavailable as livestock forage. Weed species are either strongly competitive for resources. or they exploit an absence of competitors in disturbed situations. Ecologically-based weed management must discover means of reducing the capacity of weeds to capture resources and of recapturing those that are already tied up in weed populations. Heavy grazing of palatable pasture species reduces the competition faced by invading weeds. Effective biological control agents: reduce the capacity of weeds to capture resources and make them potentially available to more favourable plant species. Pastures that experience high levels: of disturbance provide more opportunities for weeds to establish. Weeds can be interpreted as diseases of pasture but they may also be symptoms that indicate an unhealthy pasture.
Keyword Management
Ecology
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collection: School of Agriculture and Food Sciences
 
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Created: Fri, 04 May 2018, 16:55:19 EST by Shane Campbell on behalf of Learning and Research Services (UQ Library)