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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/32158

Title
Trait differences between exotic and native species within a long-grazed temperate grassland on the Northern Tablelands of New South Wales
Author/Creator
Chalmers, Anita
Description
Stepwise discriminant function analysis was used to compare the morphological traits of 15 exotic and 35 native herbaceous species occuring within an area of long-grazed grassland on the Northern Tablelands of New South Wales. Exotic graminoids were shorter, had less persistent litter and a shorter flowering period than native graminoids. Exotic forbs had deeper leaf litter and a longer flowering period than native forbs. Most exotic forbs had a rosette or a prostrate habit, with oblanceolate or lanceolate leaves, and undefined dispersal or pappus. For graminoids, trait differences reflected the predominance of the annual life-history within exotics, while differences between exotic and native forbs were realted to habit. There were two main groups of exotics at the site: (i) annual graminoids and (ii) forbs with a rosette or prostrate habit. Exotics possessing low growing habits and mechanisms to either avoid or tolerate nutrient and moisture stress were able to invade and persist under the grazed resource-poor conditions investigated in this study.
Relation
15th Australian Weeds Conference. 15th Australian Weeds Papers & Proceedings: Managing Weeds in a Changing Climate (Adelaide, SA 24-28 September, 2006) p. 235-238
Relation
http://www.wmssa.org.au/events.htm#Conferences
Relation
http://www.weedinfo.com.au/bk_15awc.html
Date
2006
Publisher
Weed Management Society of SA Inc.
Keyword(s)
exotic;  grassland;  traits;  grazing
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/32158
Identifier
ISBN:0646463446
Reviewed
Reviewed
Full Text
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Subject
"Trait differences between exotic and native species within a long-grazed temperate grassland on the Northern Tablelands of New South Wales"
 
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