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2012.2 |
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2012.2 |
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The IUCN Red List
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| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| PLANTAE | TRACHEOPHYTA | MAGNOLIOPSIDA | RHAMNALES | RHAMNACEAE |
| Scientific Name: | Alphitonia ponderosa |
| Species Authority: | Hillebr. |
| Red List Category & Criteria: | Vulnerable B1ab(I,ii,iii,iv,v) ver 3.1 |
| Year Published: | 2003 |
| Assessor/s: | Bruegmann, M.M. & Caraway, V. |
| Reviewer/s: | Maunder, M. (Plant Conservation Committee) & Dickinson, T. (Red List Programme Office) |
| Contributor/s: | |
|
Justification: A. ponderosa has an estimated extent of occurrence of less than 20,000 km². This species is severely fragmented with continued decline in extent of occurrence, area of occupancy, quality of habitat, number of locations and number of mature individuals. |
|
| Range Description: | Recorded on the islands of Hawaii, Maui, Molokai, Lanai, Oahu, and Kauai. Rare everywhere except Kauai, but number of subpopulations and mature individuals unknown. The extent of occurrence is known to be less than 20'000 km². |
| Countries: | Native: United States (Hawaiian Is.) |
| Range Map: | Click here to open the map viewer and explore range. |
| Population Trend: |
Decreasing
|
| Habitat and Ecology: | A native Hawaiian tree found in dry to mesic forests on all the main islands, except Niihau and Kahoolawe. |
| Systems: | Terrestrial |
| Major Threat(s): | Threats include pigs, deer, competition with alien plant species, seed predation by rats, and potentially fire. |
| Citation: | Bruegmann, M.M. & Caraway, V. 2003. Alphitonia ponderosa. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013. |
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