TY  - JOUR
A1  - Heyligers, Petrus C.
T1  - The role of currents in the dispersal of introduced seashore plants around Australia
T2  - Cunninghamia : a journal of plant ecology for eastern Australia
N2  - The aim of this study was to assess the role of currents in the dispersal of seashore species with buoyant propagules. Four introduced species which have now attained a wide distribution in southern and eastern Australia were used as indicators: Cakile edentula, Cakile maritima (Brassicaceae), Euphorbia paralias (Euphorbiaceae) and Arctotheca populifolia (Asteraceae). None arrived in Australia unaided, as all early collection localities are near ports and early long-distance dispersal within Australia was often due to shipping. Buoyancy and viability of propagules were tested to assess dispersal and colonisation potential. Propagule spread was analysed using information from herbarium specimens and fieldwork. A progression of herbarium specimen collection dates could often be explained by regional current regimes, as revealed by stranding locations of drift bottles and drift cards. The eastward spread of Euphorbia paralias from King George Sound, Western Australia, correlated well with stranding patterns of drift bottles released south of the Sound. The colonisation by Arctotheca populifolia of the southern extremity of the Eyre Peninsula and the south-east of South Australia was achieved through fruits carried from Western Australia by the Leeuwin Current. These and other congruencies between patterns of spread and the results of drifter releases are analysed and discussed.
Y1  - 2007
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/29355
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-293554
SN  - 2200-405X
SN  - 0727-9620
VL  - 10
IS  - 2
SP  - 167
EP  - 188
PB  - Mount Annan Botanic Garden, The Administration Officer
CY  - Mount Annan, NSW
ER  -