Phenologies and litter fall of two mangrove trees, Sonneratia alba Sm. and S. caseolaris (L.) Engl., and their putative hybrid, S. X gulngai N.C. Duke

Duke, N.C. (1988) Phenologies and litter fall of two mangrove trees, Sonneratia alba Sm. and S. caseolaris (L.) Engl., and their putative hybrid, S. X gulngai N.C. Duke. Australian Journal of Botany, 36 (4). pp. 473-482.

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Abstract

Litterfall studies were used to assess phenologies and productivity of Sonneratia alba, S. caseolaris and their putative hybrid, S. X gulngai, in north-eastern Australia. Annual total litter falls (mean +- s.d.) were 2.5 +- 0.5, 2.6 +- 1.4 and 3.2 g dry weight m-2 day-1, respectively. Litter was partitioned into leaves (47, 61 and 50%), wood (12, 14 and 19%) and reproductive parts (41, 25 and 31%). In addition, monthly reproductive schedules were produced for each taxon. Differences between taxa were pronounced. For S. alba, flowering peaked in December and fruiting in February. For S. caseolaris, flowering peaked in late February and fruiting in June and July. S. X gulngai was characterised by an apparent combination of events described for the two putative parental forms. This observation, along with a low (<2%) fruiting success, provides further support for the hybrid status of this taxon.

Item ID: 48886
Item Type: Article (Research - C1)
ISSN: 1444-9862
Keywords: mangrove; plants; Sonneratia; hybrid; litterfall; phenology; ecology; Queensland; Australia; Pacific; IWP
Date Deposited: 10 May 2017 01:22
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060302 Biogeography and Phylogeography @ 40%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity @ 30%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 30%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 30%
96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960503 Ecosystem Assessment and Management of Coastal and Estuarine Environments @ 40%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960802 Coastal and Estuarine Flora, Fauna and Biodiversity @ 30%
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