Species richness, composition, and spatial distribution of vascular epiphytes in Amazonian black-water floodplain forests

Adriano C. Quaresma, Maria Teresa F. Piedade, Florian Wittmann, Hans ter Steege

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

This study examines the occurrence of vascular epiphytic species in Central Amazonian black-water floodplain forests (igapó) and considers whether their horizontal and vertical distribution is influenced by the flood pulse, as is the case with tree species (phorophytes). Research was conducted in sixteen forest plots the Jaú National Park. In these, epiphytes on all phorophytes with DBH ≥ 10 cm were identified. We measured flood height using the watermark left by the last high-water period, then estimated the height relative to the ground of every epiphytic individual. We recorded 653 individuals in 37 species, distributed on 109 phorophytes. Igapó floodplain forests have much lower richness and abundance of vascular epiphyte species than do other Amazonian forests. This may reflect the limitation of available sites for colonization (only 24.9% of studied trees were occupied by epiphytes). Holoepiphytes predominated, and the combined presence of a flood-pulse, linked to the nutrient-poor soil poor seems to limit the occurrence of nomadic vines. Horizontal distribution of epiphytes followed the distribution of phorophytes, which in turn followed the flood-level gradient. Also flooding interacted strongly with vertical zonation to determine species richness. As already well-reported for trees, and unlike reports of epiphytes in other floodplains, flooding strongly influenced richness and distribution of vascular epiphytes in the studied igapó forests.
Original languageEnglish
Pages (from-to)1981-2002
JournalBiodiversity and Conservation
Volume27
Issue number8
Early online date27 Feb 2018
DOIs
Publication statusPublished - Jul 2018

Keywords

  • Wetlands
  • Igapo
  • Vertical distribution
  • Horizontal distribution
  • Flood pulse

Cite this

Quaresma, Adriano C. ; Piedade, Maria Teresa F. ; Wittmann, Florian ; ter Steege, Hans. / Species richness, composition, and spatial distribution of vascular epiphytes in Amazonian black-water floodplain forests. In: Biodiversity and Conservation. 2018 ; Vol. 27, No. 8. pp. 1981-2002.
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abstract = "This study examines the occurrence of vascular epiphytic species in Central Amazonian black-water floodplain forests (igap{\'o}) and considers whether their horizontal and vertical distribution is influenced by the flood pulse, as is the case with tree species (phorophytes). Research was conducted in sixteen forest plots the Ja{\'u} National Park. In these, epiphytes on all phorophytes with DBH ≥ 10 cm were identified. We measured flood height using the watermark left by the last high-water period, then estimated the height relative to the ground of every epiphytic individual. We recorded 653 individuals in 37 species, distributed on 109 phorophytes. Igap{\'o} floodplain forests have much lower richness and abundance of vascular epiphyte species than do other Amazonian forests. This may reflect the limitation of available sites for colonization (only 24.9{\%} of studied trees were occupied by epiphytes). Holoepiphytes predominated, and the combined presence of a flood-pulse, linked to the nutrient-poor soil poor seems to limit the occurrence of nomadic vines. Horizontal distribution of epiphytes followed the distribution of phorophytes, which in turn followed the flood-level gradient. Also flooding interacted strongly with vertical zonation to determine species richness. As already well-reported for trees, and unlike reports of epiphytes in other floodplains, flooding strongly influenced richness and distribution of vascular epiphytes in the studied igap{\'o} forests.",
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Species richness, composition, and spatial distribution of vascular epiphytes in Amazonian black-water floodplain forests. / Quaresma, Adriano C.; Piedade, Maria Teresa F.; Wittmann, Florian; ter Steege, Hans.

In: Biodiversity and Conservation, Vol. 27, No. 8, 07.2018, p. 1981-2002.

Research output: Contribution to JournalArticleAcademicpeer-review

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