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Dispersal, establishment and survival of Ceriops tagal propagules in a north Australian mangrove forest

McGuinness, KA (1996). Dispersal, establishment and survival of Ceriops tagal propagules in a north Australian mangrove forest. Oecologia,109(1):80-87.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 57 times in Scopus Article | Citations

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Title Dispersal, establishment and survival of Ceriops tagal propagules in a north Australian mangrove forest
Author McGuinness, KA
Journal Name Oecologia
Publication Date 1996
Volume Number 109
Issue Number 1
ISSN 1432-1939   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-0030621341
Start Page 80
End Page 87
Total Pages 8
Place of Publication Germany
Publisher Springer Publishing Company
HERDC Category C1 - Journal Article (DEST)
Abstract Abstract Studies of the ecology of mangroves show that a wide variety of factors, including salinity, desiccation, disturbance, competition and predation, may affect the distribution and abundance of species. Field studies were done to examine the relative importance of several of these factors in the establishment and early survival of Ceriops tagal, a species common in mid-to high-shore regions of mangrove forests in northern Australia. The fate of marked and tethered propagules was followed to estimate the range of dispersal and the intensity of predation. Propagules were artificially planted under different thicknesses of shade cloth (none, 30%, 80%) and in different habitats (clearing, forest, clearing-forest fringe) to examine the effects of light and soil conditions on survival and growth. Results suggested that dispersal was very limited: only 9% of marked propagules were ever found more than 3 m from the parent tree. Losses to predators were great, with 83% of tethered propagules being damaged or consumed within 3 months. On average, 56% of planted propagules survived for at least 6 weeks and 76% of these initiated growth. Survival in clearings was lower than in other habitats, with 29% fewer surviving six weeks and 48% fewer surviving 15 months. The growth of seedlings was correlated with soil temperature, but the effects of treatments were complex. Overall, results indicated that poor dispersal and establishment were the main factors likely to limit the colonisation and population growth of this species.
DOI http://dx.doi.org/10.1007/s004420050061   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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