Labordia pumila - (Hbd.) Skottsberg
Kauai Labordia
Other Common Names: Kauai labordia
Taxonomic Status: Accepted
Related ITIS Name(s): Labordia pumila (Hbd.) Skottsberg (TSN 29946)
Unique Identifier: ELEMENT_GLOBAL.2.158606
Element Code: PDLOG060L0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Pinkroot Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Gentianales Loganiaceae Labordia
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Labordia pumila
Taxonomic Comments: Genus endemic to Hawaiian Islands, species endemic to Kauai.
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 26Oct2007
Global Status Last Changed: 20Feb1991
Rounded Global Status: G1 - Critically Imperiled
Reasons: Labordia pumila is endemic to north-central Kauai island, state of Hawaii. This species' total range extent is estimated to be approximately 100 square km. There are 3 current occurrences, with the total number of plants estimated to be 1,00-1,500. Typical habitat is hummocks in bogs and in bog margins (Russell 2002). Threats include feral pigs, goats, and rats, and various invasive alien plants.
Nation: United States
National Status: N1

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Hawaii (S1)

Other Statuses

U.S. Endangered Species Act (USESA): LE: Listed endangered (13Apr2010)
U.S. Fish & Wildlife Service Lead Region: R1 - Pacific

NatureServe Global Conservation Status Factors

Range Extent Comments: Restricted to north-central Kauai in the Hawaiian islands. Two known occurrences occur in the Waialeale area and in the Wainiha/Alakai area; these are thought to be connected by as yet unmapped plants along the Wainiha Rim (K. Wood, pers. comm. to Hawaii Biodiversity and Mapping Program).

Area of Occupancy: 3-500 4-km2 grid cells
Area of Occupancy Comments: Together, the three known occurrences have an estimated area of occupancy of 20 sq. km.

Number of Occurrences: 1 - 5
Number of Occurrences Comments: Total number of occurrences are four, of those three are current occurrences found only on Kauai. Observation records range from 1994-2007. According to the Hawaii Biodiversity and Mapping Program, the most recent estimate of the occurrence in the Waialeale quadrangle is 500-1000 plants, and the most recent estimate of the occurrence in the Haena quadrangle (Wainiha/Alakai area) is 500 plants. These two occurrences may be connected by as yet unmapped plants along the Wainiha Rim (K. Wood, pers. comm. to Hawaii Biodiversity and Mapping Program). The historical occurrence, east of the others in the Hanalei quadrangle, was noted to be scarce locally in 1988.

Population Size Comments: The Hawaii Biodiversity and Mapping Program estimates that the total number of plants is between 900 to 1400. However, the United States Fish and Wildlife Service (USFWS 2004) reports a lower estimate of 500-700 total plants. A recent (2000) survey of the Haena occurrence/subpopulation found that 80% of the counted plants were mature individuals. Therefore, the total number of mature individuals could conceivably range from 400 to 1200.

Number of Occurrences with Good Viability/Integrity: Very few (1-3)

Overall Threat Impact: Very high - high
Overall Threat Impact Comments: Feral pigs pose a threat by degrading and destroying habitat and by eating this species (USFWS 2004). Lesser threats are posed by feral goats and rats (USFWS 2004). Alien plant species also threaten this species by competition; this threat appears to be increasing (USFWS 2004). Alien plant species noted include Juncus planifolius, Erechtites valerianifolia, Andropogon virginicus (broomesedge), Sacciolepis indica, and Rubus argutus (USFWS 2004). With the small number of known populations, reduced reproductive vigor and extinction from naturally occurring events, such as hurricanes, are also threats to this species (Russell 2002).

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: Apparently, plant numbers fluctuated very little between 2001 and 2004 (Marie Bruegmann, pers. comm. to USFWS 2004).

Long-term Trend: Unknown

Intrinsic Vulnerability Comments: Labordia species are functionally dioecious (Motley and Carr 1998), potentially making reproduction more difficult in very small occurrences.

Environmental Specificity: Unknown

Other NatureServe Conservation Status Information

Distribution
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Global Range: Restricted to north-central Kauai in the Hawaiian islands. Two known occurrences occur in the Waialeale area and in the Wainiha/Alakai area; these are thought to be connected by as yet unmapped plants along the Wainiha Rim (K. Wood, pers. comm. to Hawaii Biodiversity and Mapping Program).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States HI

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
HI Kauai (15007)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
20 Kauai (20070000)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: Sparingly branched shrubs. Cymes sessile, with up to 15 flowers. Corollas orange.
Palustrine Habitat(s): Bog/fen
Terrestrial Habitat(s): Forest - Hardwood, Forest/Woodland, Shrubland/chaparral
Habitat Comments: Wet forests and shrublands, and montane bogs.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 30Oct2007
NatureServe Conservation Status Factors Author: J. Lau, rev. A. Olivero (2003), rev. K. Gravuer (2006), rev. D. Matsuwaki (2007)

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Hillebrand, W.F. 1888. Flora of the Hawaiian Islands: a description of their phanerogams and vascular cryptogams. Facsimile ed., 1981. Lubrecht & Cramer, Monticello, NY. 673 pp.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Motley, T. J. and G. D. Carr. 1998. Artificial hybridization in the Hawaiian endemic genus Labordia (Loganiaceae). American Journal of Botany 85(5): 654-660.

  • Russell, C. 2002. February-last update. Candidate and Listing Priority Assignment Form: Labordia pumila. U.S. Fish and Wildlife Service, Endangered Species Program. Online. Available: http://ecos.fws.gov/tess/candforms_pdf/r1/labpum.pdf. Accessed 2003, March 5.

  • Sherff, E.E. 1939. Genus Labordia. Field Mus. Nat. Hist., Bot. Ser. 17: 445-546.

  • Skottsberg, C. 1936. Vascular plants from the Hawaiian Islands II. Acta Horti. Gothob. 10: 97-193.

  • U.S. Fish and Wildlife Service (USFWS). 2004, June last update. Species assessment and listing priority assignment form: Labordia pumila. United States Fish and Wildlife Service (USFWS) Endangered Species Program. Online. Available: http://ecos.fws.gov/species_profile/servlet/gov.doi.species_profile.servlets.SpeciesProfile?spcode=Q34R (Accessed May 2006).

  • Wagner, W.L., D.R. Herbst, and S.H. Sohmer. 1990. Manual of the flowering plants of Hawaii. Univ. Hawaii Press and Bishop Museum Press, Honolulu. 1853 pp.

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