Nematode assemblages from Avicennia marina leaf litter in a temperate mangrove forest in south-eastern Australia

2003 ◽  
Vol 142 (2) ◽  
pp. 289-297 ◽  
Author(s):  
J. Gwyther
Keyword(s):  
Leaf Litter ◽  
Mangrove Forest ◽  
Avicennia Marina ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

Transport of leaf litter in upland streams of Eucalyptus and Nothofagus forests in south-eastern Australia

2002 ◽  
Vol 156 (1) ◽  
pp. 43-61 ◽  
Author(s):  
David C. Steart ◽  
Paul I. Boon ◽  
David R. Greenwood ◽  
Neil T. Diamond
Keyword(s):  
Leaf Litter ◽  
South Eastern ◽  
Eastern Australia ◽  
South Eastern Australia

Buoyancy of Avicennia marina Propagules in South-Eastern Australia

1991 ◽  
Vol 39 (1) ◽  
pp. 77 ◽  
Author(s):  
PJ Clarke ◽  
PJ Myerscough
Keyword(s):  
Avicennia Marina ◽  
Field Observations ◽  
Tidal Inundation ◽  
South Eastern ◽  
Parent Tree ◽  
Eastern Australia ◽  
South Eastern Australia

Buoyancy of propagules of Avicennia marina (Forsk.) Vierh. was observed in the laboratory and in the field. Under constant exposure to seawater in the laboratory, propagules that shed their pericarp sank while those that retained their pericarp floated. The time taken for propagules to shed their pericarps varied greatly between trees in a population and between populations. However, more propagules lost their pericarps and sank faster in 10% seawater than in full seawater. Propagules that had sunk in 10% seawater refloated after several days' immersion. In the field, propagules placed at three tidal levels and exposed to differing periods of tidal inundation all lost their pericarps and sank within 24 h with no differences detected between tidal levels. Field observations were also made where brackish and seawater sites could be compared. Propagules shed their pericarps faster and sank earlier at the brackish site, although after 24 h more than 80% of propagules had sunk at all sites. After 48 h propagules in the brackish site began to refloat. These observations suggest that most A. marina. propagules strand and establish near the parent tree populations and only a few are dispersed more widely.

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