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Pandanus tectorius

PTBG1000031903

040680

10322

K. R. Wood

July 17, 2003

PTBG

US, PAP

! David H. Lorence 12 Sept 2009

Jean-Yves Meyer, David H. Lorence, Lilo Dunn, T. Teikiehuupoko

Polynesia

PF

MARQUESAS ISLANDS

Ua Pou

UA-POU COMMUNE

732

Ridge above Anakooma river and below Oave.

monocot

Tree, 7 m tall, moderately branched.

East

Moderate

Scattered

7 m

Wet

Upper Slope

Pandanus tectorius, Freycinetia impavida and Dicranopteris linearis

Tree

with fruit

regenerating

Normal

Common

50-100

1000 sq m

Dominated by Pandanus tectorius, Freycinetia impavida and Dicranopteris linearis with Hibiscus tiliaceus dominating the forests below ridge. Common native associates include tree species such as Weinmannia marquesana, Ficus prolixa var. prolixa, Metrosideros collina, Crossostylis biflora, Macropiper latifolium, and Cyclophyllum barbatum. Common native grasses include Miscanthus floridulus, Centosteca lappacea, and Leptochloa marquisensis. Peperomia blanda is common along rock outcrops and other less common herbs and trees include Procris pedunculata, Adenostemma viscosum, Boehmeria virgata, Ixora, and Morinda myrtifolia. Pteridophytes of the area include Asplenium affine, Asplenium quaylei, Asplenium tenerum, Diplazium harpeodes, Blechnum capense, Blechnum vulcanicum, Doodia marquesensis, Cyathea affinis, Paesia rugulosa, Arachniodes aristata, Polystichum marquesense, Tectaria jardinii, Elaphoglossum marquisearum, Elaphoglossum tovii, Trichomanes, Lindsaea propinqua, Sphenomeris chinensis, Lycopodium cernuum, Angiopteris evecta, Ophioglossum pendulum, Belvisia mucronata, Selliguea feeioides, Adiantum trapeziforme, Pteris comans, Selaginella arbuscula, Amphineuron opulentum, Chingia longissima, Coryphopteris quaylei, Tmesipteris sp. nov., Antrophyum subfalcatum, and Haplopteris elongata. 50-70 Tahitian petrel were observed circling around Oave and ca 20 individuals of the Marquesan fruit dove were observed passing over the ridge between drainages.

MARQUESAS: Ua Pou (9.40°S/140.08°W); Anakooma river and ridge below Oave, 2000-2400 ft elev. [data reflects research conducted by author: 17 Jul 2003] DICOTS Asteraceae Adenostemma viscosum J. R. Forst. & G. Forst. | ind | NH/ UH/ HO/ T/ FHi Conyza bonariensis (L.) Cronquist | nat | E Cunoniaceae Weinmannia marquesana F. Br. var. marquesana | end | NH/ UH/ UP/ HO/ T/ FHi Malvaceae Hibiscus tiliaceus L. | ind | E/ NH/ UH/ UP/ HO/ M/ FHi Moraceae Ficus prolixa G. Forst. var. prolixa | ind | E/ NH/ UH/ UP/ HO/ T/ M/ FHi Myrtaceae Metrosideros collina (J. R. Forst. & G. Forst.) A. Gray | ind | NH/ UP/ HO/ T/ FHi Psidium guajava L. | nat | NH/ UH/ UP/ HO/ FHi Piperaceae Macropiper latifolium (L. f.) Miq. | ind | NH/ UH/ UP/ HO/ T/ FHi Peperomia sp Rhizophoraceae Crossostylis biflora J. R. Forst. & G. Forst. | ind | NH/ UH/ UP/ HO/ T/ FHi Rubiaceae Coffea arabica L. | nat | NH/ UH/ UP/ HO/ FHi Cyclophyllum barbatum (G. Forst.) N. Hallé & J. Florence | ind | NH/ UH/ UP/ HO/ T/ FHi Ixora Morinda myrtifolia A. Gray | ind | NH/ UH/ HO/ T/ M/ FHi Urticaceae Boehmeria virgata (G. Forst.) Guill. | ind | NH/ UH/ UP/ HO/ T/ FHi Procris pedunculata (J. R. Forst. & G. Forst.) Wedd. | ind | NH/ UH/ UP/ HO MONOCOTS Agavaceae Cordyline fruticosa (L.) A. Chev. | nat | UH/ HO Pandanaceae Freycinetia impavida (Gaudich. ex Hombr.) B. C. Stone | ind | NH/ UH/ UP/ HO/ FHi Pandanus tectorius Parkinson ex Z | ind | E/ UH/ HO/ FHi Poaceae Centosteca lappacea (L.) Desv. | ind | NH/ UH/ UP/ HO/ T/ FHi Leptochloa marquisensis (F. Br.) P. M. Peterson & Judz. | end | NH/ UH/ UP/ HO/ T/ FHi Miscanthus floridulus (Labill.) Warb. | ind | NH/ UH/ UP/ HO/ T/ M/ kw FHi Oplismenus compositus (L.) P. Beauv. | nat | NH/ UH/ UP/ HO/ T/ FHi Zingiberaceae Zingiber zerumbet (L.) Sm. | nat | NH/ UH/ HO/ T/ FHi PTERIDOPHYTES Aspleniaceae Asplenium affine Sw. | ind | NH/ UP/ HO/ FHi Asplenium quaylei E. D. Br. | end | NH/ UH/ HO/ T/ FHi Asplenium tenerum G. Forst. | ind | NH/ UH/ HO/ T/ FHi Athyriaceae Diplazium harpeodes J. W. Moore | ind | NH/ HO Blechnaceae Blechnum capense (L.) Schltdl. | ind | NH/ UP/ HO/ T/ FHi Blechnum vulcanicum (Blume) Kuhn | ind | NH/ HO/ T/ FHi Doodia marquesensis E. D. Br. | end | UP/ HO/ T/ FHi Cyatheaceae Cyathea affinis (G. Forst.) Sw. | ind | NH/ UH/ UP/ HO/ T/ FHi Dennstaedtiaceae Paesia rugulosa (Labill.) Kuhn | ind | NH/ UH/ UP/ HO/ FHi Dryopteridaceae Arachniodes aristata (G. Forst.) Tindale | ind | NH/ UH/ UP/ HO/ T/ FHi Polystichum marquesense E. D. Br. | end | NH/ UH/ UP/ HO/ T/ FHi Tectaria jardinii (Mett. ex Kuhn) E. D. Br. | end | NH/ UH/ UP/ FHi Elaphoglossaceae Elaphoglossum marquisearum Bonap. | end | NH/ HO/ T/ FHi Elaphoglossum tovii E. D. Br. | end | NH/ UH/ UP/ HO/ FHi Gleicheniaceae Dicranopteris linearis (Burm. f.) Underw. | ind | NH/ UH/ UP/ HO/ M/ FHi Hymenophyllaceae Trichomanes Lindsaeaceae Lindsaea propinqua Hook. | ind | NH/ UP/ HO/ FHi Sphenomeris chinensis (L.) Maxon | ind | NH/ UH/ UP/ HO/ T/ FHi Lycopodiaceae Lycopodium cernuum L. | ind | NH/ UH/ UP/ HO/ FHi Marattiaceae Angiopteris evecta (G. Forst.) Hoffm. | ind | NH/ UP/ HO/ T Ophioglossaceae Ophioglossum pendulum L. var. pendulum | ind | NH/ UH/ UP/ HO/ T/ FHi Polypodiaceae Belvisia mucronata (Fée) Copel. | ind | NH/ UH/ UP/ HO/ T/ FHi Selliguea feeioides Copel. | ind | H/ NH/ UH/ UP/ HO/ T/ FHi Adiantum trapeziforme L. | nat | HO/ T/ FHi Pteris comans G. Forst. | ind | NH/ UH/ UP/ HO/ T/ FHi Selaginellaceae Selaginella arbuscula (Kaulf.) Spring | ind | NH/ UH/ T/ FHi Thelypteridaceae Amphineuron opulentum (Kaulf.) Holttum | ind | E/ NH/ UH/ UP/ HO/ T/ M/ FHi Chingia longissima (Brack.) Holttum | ind | NH/ HO/ FHi Coryphopteris quaylei (E. D. Br.) Holttum | end | NH/ FHi Tmesipteridaceae Tmesipteris sp. nov. | end | NH/ UP/ HO/ T/ FHi Vittariaceae Antrophyum subfalcatum Brack. | ind | NH Haplopteris elongata (Sw.) E. H. Crane | ind | NH/ UP/ HO/ FHi MARQUESAS: Ua Pou (9.40°S/140.08°W); lies 300 kilometers from the Marquesas Fault Line hot spot, vocanic island of 5.61 million years, 105 sq kilometer area, maximum altitude of 1203 kilometers. Ridge above Anakooma river and below Oave, 2000-2400 ft elev., dominated by Pandanus tectorius, Freycinetia impavida and Dicranopteris linearis with Hibiscus tiliaceus dominating the forests below ridge. Common native associates include tree species such as Weinmannia marquesana, Ficus prolixa var. prolixa, Metrosideros collina, Crossostylis biflora, Macropiper latifolium, and Cyclophyllum barbatum. Common native grasses include Miscanthus floridulus, Centosteca lappacea, and Leptochloa marquisensis. Peperomia blanda is common along rock outcrops and other less common herbs and trees include Procris pedunculata, Adenostemma viscosum, Boehmeria virgata, Ixora, and Morinda myrtifolia. Pteridophytes of the area include Asplenium affine, Asplenium quaylei, Asplenium tenerum, Diplazium harpeodes, Blechnum capense, Blechnum vulcanicum, Doodia marquesensis, Cyathea affinis, Paesia rugulosa, Arachniodes aristata, Polystichum marquesense, Tectaria jardinii, Elaphoglossum marquisearum, Elaphoglossum tovii, Trichomanes, Lindsaea propinqua, Sphenomeris chinensis, Lycopodium cernuum, Angiopteris evecta, Ophioglossum pendulum, Belvisia mucronata, Selliguea feeioides, Adiantum trapeziforme, Pteris comans, Selaginella arbuscula, Amphineuron opulentum, Chingia longissima, Coryphopteris quaylei, Tmesipteris sp. nov., Antrophyum subfalcatum, and Haplopteris elongata. 50-70 Tahitian petrel were observed circling around Oave and ca 20 individuals of the Marquesan fruit dove were observed passing over the ridge between drainages. The main threats to this ecosystem include habitat degradation and destruction by feral pigs, catastrophic extinction through environmental events, predation by rats that eat seeds, competition with non-native plant taxa such as Psidium guajava, Coffea arabica, Oplismenus compositus, Conyza bonariensis, Cordyline fruticosa, and Zingiber zerumbet some of which possess the ability to spread rapidly and cover effectively large areas in the forest understory, possible land slides, and for the rare species, reduced reproductive vigor as the result of limited numbers of existing individuals.

July 17, 2012

August 6, 2023