Utilization of freshwater and ocean water by coastal plants of southern Florida.

Leonel Sternberg, Peter K Swart

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

Plants toward the interior of the keys were generally using freshwater while those toward the edge were using ocean water. A plot of the hydrogen and oxygen isotopic composition of the plant water yielded a mixing line between typical freshwater values and those of ocean water. In general, the isotopic ratios of stem water for species found in hardwood hammocks were confined to the freshwater end of the line, followed by values of stem water from mangrove margin species. Species found in mangroves, however, had water with extremely variable isotopic ratios, ranging from values typical of ocean water to values typical of freshwater. This variability is consistent with the hypothesis that mangroves are fully capable of growing in freshwater, but are limited to saline habitats because of competitive exclusion by fast-growing glycophilic plants.-from Authors

Original languageEnglish
Pages (from-to)1898-1905
Number of pages8
JournalEcology
Volume68
Issue number6
StatePublished - Dec 1 1987

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seawater
ocean
mangrove
water
isotopic ratio
stems
botanical composition
competitive exclusion
stem
hardwood
hydrogen
oxygen
isotopic composition
habitats
habitat

ASJC Scopus subject areas

  • Ecology

Cite this

Utilization of freshwater and ocean water by coastal plants of southern Florida. / Sternberg, Leonel; Swart, Peter K.

In: Ecology, Vol. 68, No. 6, 01.12.1987, p. 1898-1905.

Research output: Contribution to journalArticle

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