Checklist of Endemic Species in Palau
Authors: Craig M. Costion, Ann Hillmann Kitalong, and Tarita Holm
Citation: 2009. Plant Endemism, Rarity, and Threat in Palau, Micronesia: A Geographical Checklist and Preliminary Red List Assessment. Micronesica 41(1).
Locality: Republic of Palau (7.480940, 134.559170)
Abstract:

An official checklist of the endemic plant species of Palau has been long awaited, and is presented here for the first time. For each species a substrate limitation, growth form, and relative abundance is listed. In addition an IUCN red list assessment was conducted using all available data. For over half of the endemic species there is insufficient data to provide a red listing status however an expected minimum number of threatened plants out of the total is inferred. Approximately 15% of Palau’s endemic plants are believed to be only known from the type collection and many more only known from a few collections. These taxa however may now be prioritized and targeted for future inventory and research. The taxonomic robustness of several of these taxa is questionable and it is expected that more endemic species will be lost to synonymy in the future. Previous estimations have significantly over-estimated the rate of plant endemism in Palau (e.g., 194). Here, 130 plants are recognized for Palau, making its level of plant endemism comparable to some of its neighboring Micronesian islands to the east, notably Guam and Pohnpei. Several species are known to be restricted to isolated disjunct populations however the causes for their rarity are poorly known and have never been intensively studied. Palau although notable for its high percentage of remaining primary forest compared to other oceanic islands faces increasing threat from development making these small populations highly vulnerable. Nothing is known about how these rare species will respond to the imminent threat of climate change. There is no current legislation protecting specific plant species as their rarity has never been systematically quantified. This paper represents a step towards plant conservation in Micronesia and it aims to stimulate further studies to address the data deficiencies documented here.

Reference:
https://www.researchgate.net/publication/265109793_Plant_Endemism_Rarity_and_Threat_in_Palau_Micronesia_A_Geographical_Checklist_and_Preliminary_Red_List_Assessment


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Families: 45
Genera: 87
Species: 130
Total Taxa: 130

Page 1 of 1: 1

Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Uncommon, IUCN Status: Data Deficient
Tree (understory), Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Common, IUCN Status: Least Concern
Shrub, Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Common, IUCN Status: Least Concern
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (canopy), Abundance: Uncommon, IUCN Status: Data Deficient
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Common, IUCN Status: Least Concern
Liana, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Uncommon, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Uncommon, IUCN Status: Data Deficient
Tree, Abundance: Uncommon, IUCN Status: Least Concern
Tree, Abundance: Uncommon, IUCN Status: Data Deficient
Tree, Abundance: Uncommon-Rare, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Uncommon, IUCN Status: Data Deficient
Herb, Abundance: Uncommon, IUCN Status: Least Concern
Herb, Abundance: Abundant, IUCN Status: Least Concern
Tree, Abundance: Uncommon, IUCN Status: Data Deficient
Herb-Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Liana, Abundance: Uncommon-Common, IUCN Status: Least Concern
Shrub, Abundance: Data Deficient, IUCN Status: Least Concern
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Liana, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Common, IUCN Status: Least Concern
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Common, IUCN Status: Data Deficient
Tree (understory), Abundance: Uncommon, Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Common, IUCN Status: Least Concern
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Liana, Abundance: Common-Abundant, IUCN Status: Least Concern
Tree, Abundance: Common-Abundant, IUCN Status: Least Concern
Shrub, Abundance: Data Deficient, IUCN Status: Least Concern
Tree, Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Uncommon-Rare, IUCN Status: Near Threatened
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Shrub, Abundance: Common-Abundant, IUCN Status: Least Concern
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Common, IUCN Status: Data Deficient
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Common, IUCN Status: Least Concern
Tree, Abundance: Uncommon-Rare, IUCN Status: Near Threatened
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Uncommon, Data Deficient, IUCN Status: Data Deficient
Herb-Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb-Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb-Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree-Shrub, Abundance: Data Deficient, IUCN Status: Vulnerable
Shrub, Abundance: Data Deficient, IUCN Status: Least Concern
Tree, Abundance: Common-Dominant, Range Restricted, IUCN Status: Least Concern
Shrub, Abundance: Common, IUCN Status: Least Concern
Liana, Abundance: Data Deficient, IUCN Status: Data Deficient
Shrub, Abundance: Common, IUCN Status: Least Concern
Shrub-Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Liana, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Uncommon, IUCN Status: Data Deficient
Tree (understory), Abundance: Uncommon, IUCN Status: Data Deficient
Shrub-Tree, Abundance: Common, IUCN Status: Least Concern
Tree (understory), Abundance: Common, IUCN Status: Least Concern
Herb, Abundance: Rare, IUCN Status: Near Threatened
Data Deficient, Abundance: Data Deficient, IUCN Status: Least Concern
Herb, Abundance: Uncommon, IUCN Status: Data Deficient
Tree (understory), Abundance: Abundant, IUCN Status: Least Concern
Tree (understory), Abundance: Uncommon, IUCN Status: Least Concern
Tree (understory), Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (understory), Abundance: Common-Abundant, IUCN Status: Least Concern
Tree, Abundance: Uncommon, IUCN Status: Near Threatened
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Uncommon, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree-Shrub, Abundance: Data Deficient, IUCN Status: Vulnerable
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (canopy), Abundance: Rare, Restricted Range, IUCN Status: Endangered
Herb, Abundance: Data Deficient, IUCN Status: Least Concern
Herb, Abundance: Common, IUCN Status: Least Concern
Herb, Abundance: Rare, IUCN Status: Near Threatened
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Shrub, Abundance: Common-Abundant, IUCN Status: Least Concern
Shrub, Abundance: Data Deficient, IUCN Status: Least Concern
Liana, Abundance: Common, IUCN Status: Least Concern
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Uncommon-Rare, IUCN Status: Critically Endangered
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (understory), Abundance: Data Deficient, IUCN Status: Data Deficient
Liana-Shrub, Abundance: Uncommon, IUCN Status: Data Deficient
Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb-Epiphyte, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Uncommon, Range Restricted, IUCN Status: Vulnerable
Data Deficient, Abundance: Data Deficient, IUCN Status:
Herb, Abundance: Uncommon, IUCN Status: Data Deficient
Herb, Uncommon, IUCN Status: Data Deficient
Herb, Abundance: Uncommon, IUCN Status: Data Deficient
Tree (canopy), Abundance: Data Deficient, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status:
Epiphyte, Abundance: Uncommon, IUCN Status: Data Deficient
Tree (canopy), Abundance: Abundant, RareRare, IUCN Status: Endangered
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree-Shrub, IUCN Status: Data Deficient
Tree, Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (understory), Abundance: Data Deficient, IUCN Status: Data Deficient
Tree (understory), Abundance: Data Deficient, IUCN Status: Critically Endangered
Shrub, Abundance: Common, IUCN Status: Least Concern
Liana, Abundance: Data Deficient, IUCN Status: Least Concern
Shrub, Abundance: Abundant, IUCN Status: Least Concern
Liana-Shrub, Abundance: Data Deficient, IUCN Status: Data Deficient
Herb, Abundance: Common, IUCN Status: Least Concern