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TABLE 5A.1 Island Characteristics

Island or Archipelago

Naturalized Plant Species

Native Plant Species

Occupation Historya

European Settlementb

Latitudec

Elevation, m

Area, Km2

Human Populationd

Christmas

151

201

Uninhabited

1888

−10.8

357

135

3,214

Cocos (Keeling)

53

61

Uninhabited

1826

−12

9

14

300

Easter

68

43

Inhabited

1864

−27.2

511

173

2,300

Hawaiie

1,140

1,292

Inhabited

1778

22.4

4,169

16,636.5

1,321,000f

Heron

25

26

Uninhabited

1923

−23.4

4

0.19

132g

Lord Howe

179

219

Uninhabited

1834

−31.8

875

14.6

371

Mangareva

60

85

Inhabited

1834

−23.2

441

13

860

Nauru

85

50

Inhabited

1835

−0.7

70

20.7

10,605

New Zealandh

2,065

2,104

Inhabited

1795

−40.9

3,764

268,670

3,662,265

Northern Line Islandi

41

35

Inhabited

1854

3.9

5

368.7

2,155

Norfolk

246

157

Inhabited

1788

−29

318

36.8

1,905

Pitcairn

40

40

Inhabited

1790

−25.8

347

4.2

66

Tristan da Cunha

66

70

Uninhabited

1810

−37.2

2,060

103.2

296

aMore detailed accounts of occupation history at the time of European contact are available in Sax et al. (2002).

bDate of first European settlement for uninhabited islands or first European trade for inhabited islands.

cThe negative sign indicates degrees South latitude. Values are taken from standard data sources, except for Hawaii, New Zealand, and the Northern Line Islands; their latitudes are calculated as the midpoint between their northern- and southern-most points (as indicated in notes e,h, i).

dValues are from the UNEP Island database (http://islands.unep.ch/), from the CIA world fact book, and from the literature. Population estimates were matched as closely as possible to the year in which the last plant survey of an island was conducted (Appendix text). Note that on some islands, e.g., Christmas Island, that population size has decreased in recent years.

eHawaii includes all islands in the chain from Hawaii to Laysan.

fThe population size for Hawaii includes permanent residents as well as an estimate of annual visitors.

gHeron Island’s effective population size is estimated as the number of visitor days from a typical year in the 1980s (48,000 visitor days) divided by the number of days in the year. See Sax et al. (2002) for data source.

hNew Zealand includes North, South, and Stewart Islands, as well as near-shore islands associated with these three islands.

iNorthern Line Islands include Kiritimati, Tabuaeran, Teraina, and Palmyra.



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