[2010-01-26-1]εˤ褦ˡǤ֤ޤ˿¿¸ߤ롥ǤȤưˤ뤬ܤʤɤŪˤ٤ͥ٤㤤ȤΤ¤Ǥ롥⤽⡤줬ˤ뤫ɤɤΤ餤δ٥뤫ȽꤹҴŪʴबʤ¤ꡤŪؤѶŪưȤȤˤȤƤϡ٤ȽˤǥϹۤƤʤ䤬ΩϤΤǤ롥
㤨СλȤüʾꤹΤ롥̾üԤˤʤäʳǸλब𤵤뤬üԤ˺ǸüԤǤ뤫ɤϤ狼ʤ¼˿̾ΤäƤ뤫⤷ʤҸǤäȤ¹뤫⤷ʤޤˤ褯äͤʤ餺硤θθȤ֤ŤǤȤ館СθϤޤȤϸڤʤȤˤʤ롥
λǤҴŪΤΤ顤٥ʳŤ뤳ȤκǤ롥㤨С500ͤüԶƱΤΤʤǤüԤ100ͤȤȡ1000ͤΤʤ200ͤȤǤϡɤθ줬ñüԿüΨǤʤȤ餫Ǥ롥ƱΤθФ٤䡤ġüԤλǤʤɡͤ٤ѥϤ롥
Ūʴ٤ȽβǽȤơäʸˡܤǤٹ礤¬ȤȤϹͤ롥ǤΤϡѤʤȤˤ굡ǽϼ岽Ƥ椯뤫Ǥ롥ǤΤƤʤǡפȹͤѲФ뤳ȤϤꡤɤ줬̾θѲǤɤ줬ͭθѲʤΤ뤳Ȥ
ͤޤǤˡʣԤƤƤ٤Υ٥ȥ٥ Crystal (19--21) Ҳ𤹤롥üԿüǯؤθƤΤ¿褦Ǥ롥
safe, endangered, moribund, extinct (Krauss)
viable, viable but small, endangered, nearly extinct, extinct (Kincade)
potentially endangered, endangered, seriously endangered, moribund, extinct (Wurm)
Crystal, David. Language Death. Cambridge: CUP, 2000.
[2010-01-22-1]θοˤϡȳƸüԿȤδطͤƤߤ롥
ʲɽϡ6000줬¸ߤȲꤷüԿȤδطˤΤǤ롥ϡ1999ǯǤ Ethnologue ͤˡCrystal ޤȤΤǤ (14--15)
| Population of Native Speakers | Number of Languages | % | Cumulative downwards % | Cumulative upwards % |
|---|---|---|---|---|
| more than 100 million | 8 | 0.13 | 99.9 | |
| 10--99.9 million | 72 | 1.2 | 1.3 | 99.8 |
| 1--9.9 million | 239 | 3.9 | 5.2 | 98.6 |
| 100,000--999,999 | 795 | 13.1 | 18.3 | 94.7 |
| 10,000--99,999 | 1,605 | 26.5 | 44.8 | 81.6 |
| 1,000--9,999 | 1,782 | 29.4 | 74.2 | 55.1 |
| 100--999 | 1,075 | 17.7 | 91.9 | 25.7 |
| 10--99 | 302 | 5.0 | 96.9 | 8.0 |
| 1--9 | 181 | 3.0 | 99.9 |
˸ϤĤ뤫Ԥˤä3,000Ȥ10,000Ȥޤ͡ǡꤷʤʣԤʿͤȤƤäȤ褯ˤ6,000Ǥ롥
ʤԤˤäƿͤ㤦ΤϵҴŪ˿ʤΤʤΤCrystal θοΤİǤʤͳ5Ƥ (3--5)
(1) ⤽ϤĴʤΤ20Ⱦ Ethnologue ʤɤĤεؤŪĴʤäƤ뤬ΤŪΤǤꡤפϻϤޤäФȤ٤Ǥ롥
(2) ¿ԤϾ嵭ĴԴǤ뤳ȤΤäƤ뤿ˡǤդڤ夲ڤ겼ꤷǤ롥
(3) ǤοȤ餬Ǥ®٤ΤİǤʤ
(4) ȯοȯ٤ΤİǤʤʤäȤ⡤ȯֿפˤäθŪȤϹͤˤΤǡƶ϶Ͼ
(5) Ѽָ ( language ) Ȥߤ뤫Ρ ( dialect ) Ȥߤ뤫ˤĤơΤʴबʤ
ϤĴʤƤƤꡤ(1) (4) ˤĤƤϲƤ椯(5) ϼҲؾθŵŪǤꡤλʤ
㤨С1990ǯˤ Serbo-Croatian ȤäΤߤǤ Serbian, Croatian, Bosnian ȻʬƤ롥줬Ѥä櫓ǤϤʤ桼ӥŪʬ椨λ֤Ǥ롥
Ʊ褦ˡѸ줬ޤޤ¿ͲƤ椯ȤͤȡIndian English, Singapore English, Caribbean English ʤɤϤ٤ English Ω̤θȤƿ褦ˤʤ뤫⤷ʤ
ä
Crystal, David. Language Death. Cambridge: CUP, 2000.
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