2017 ȅ<#TńͪӚǮ?̭ЀӇ͜Ƕ­ŰË 1ʦ­İˎ 2

Reptiles of Minami-Iwo-To Island, the Volcano Islands in 2017.

Kazuto KAWAKAMI1* & Yuki MURAKAMI21. ˀʭθşͨΆɃӞ305−8687 ϴƒ͞5!AǼʫ?҇ 1ӟ
Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan.
2. ӐҀƩǂʪỀǹǂͨΆͷӞ192−0397 ʪÊҀĉ̺ƻǼńƩˮ 1−1ӟDepartment of Biology, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397,
Japan.
* kazzto@ffpri.affrc.go.jp (author for correspondence)Йʆ ńͪӚǮ?̭ЀӇ͜?̳̾XʋR<+T1M2017 ȅ 6 ʙ 14 ʃ27 ʃ?ʞҗ<̾ƌ8жʴXЉ41/?ίʯbdm¤~cj Cryptoblepharus nigropunctatus ̀ǭRˋӕ
660m ?Ιƅ8~ o

Perochirus ateles ̀ǭRˋӕ 300m ?Ιƅ8ͫб

'U1,U?Ϳ<57N 1982 ȅ2007 ȅ?жʴʑ<ˡG7̲<Ʃ;óáɷ?ƣĸ
@;N?9ϊRU1
e¨¤¨ bdm¤~cjǞΏŌзǮ̣ǩĚǮ~ oӦӤ@*M< ǞΏŌзǮ8@̭ЀӇ9)7%UJ8<ƋʩͿ?bdm¤~cj Cryptoblepharus
nigropunctatus 9~ ocarolinensisbdm¤Perochirus atelesƥʩͿ?h ¨¥[¨¡ Anolis

Lepidodactylus lugubrisbh£

Hemidactylus frenatus¨g Ramphotyphlops braminus ?̈́ȳƘū'U7TӞŀͦ1983; ǞΏŌϠ̩͂ƜͨΆØ1992ӟńͪӚǮ8@ 1982 ȅQC 2007 ȅ<̭ЀӇ?̈́ȳ̳˳<57жʴЉWU7S%UR?3ƋʩͿ 2 Ϳ?KЦҎ'Uƥʩ̭ЀӇ@ЦҎ'U7;Ӟŀͦ1983; Ɩэ2008ӟ− 289 −

 bdm¤~cj@ύǮĚǮRńӘǮJ8ǞΏŌзǮĈƓ<̈́ȳ)7TӞHayashi et al.,2009ӟʢͿ@Óģ@ƫȄ˸§]¥˸<Ȋ!ėǽ+T C. boutoni ? 1 ÇͿ9'U71ʘџ@ǞΏŌ?ƇʚͿ9'U7TӞHorner, 2007ӟńͪӚǮ8 2007 ȅ<ЉWU1жʴ8ȣ
RU1ʢͿ?Ьɻ<ƕ67 mtDNA Xėʬ)1ίʯR@ȘЮҫƃ@˟ǮĚǮQCńӘǮ?ҫƃ9џν8T%9ͯų'U7TӞHayashi et al., 2009ӟńͪӚǮ<7@
1982 ȅ<@̀ǭRˋӕ 750m ?Ιƅ8ЦҎ'U7SӞŀͦ1983ӟ
J1 2007 ȅ<@̀ǭRǟ;!9Nˋӕ 500m J8?Ιƅ8ЦҎ'U7TӞƖэ2008ӟ
,U?ƙşNӕˋӕƌXҝǮĎ<Ȋ!ėǽ+T9ϊRU7T ~ o @Óģ<@ńӘǮ8Nͫб'U71N??ӞBurt & Burt, 1932ӟʘџ@ЦҎ;!ӞSakagami, 1961; Ƕ­ʠ͓Ќӟʂ<π˛ҫƃ̘̂)7TřϘȱ
T%?1MńͪӚǮ@̾Ƌͫб'U7TƈĎ8ŵ©?~ o ?̈́ȳƌ9;47TńͪӚǮ8@̀ǭ?ǫƙ<7 1982 ȅ?жʴ8ěM7ͫб'UӞŀͦ1983ӟ
2007 ȅ<@̀ǭRˋӕ 300m J8?Ιƅ8̈́ȳЦҎ'U1ӞƖэ2008ӟ ʢжʴ8@ńͪӚǮ<#TƋʩ̭ЀӇ 2 Ϳ?ėǽ?ƣĸXv ¥h+T99N<ʠͫб?ƥʩͿ?êć̳˳Xͫб+T%9X͙͖9+T;жʴ@ 2017 ȅ 6 ʙ 14 ʃ27 ʃ?җ<ЉWU1ӧӤɿ˵ ńͪӚǮ8@ 2017 ȅ 6 ʙ 14 ʃ27 ʃ?җ<ʪÊҀNHKӐҀƩǂ?Ѭɧ<QTńͪӚǮǂЊжʴ 2017 ЉWU1̭ЀӇ?̈́ȳ̳˳?Ɉɣ?1M%?жʴ<ŏ͌)1жʴű̭ЀӇX͓Л)1Ҧ<ѷǉЦҎXЉ41J1͓Л'U1óá?©Ѿ@ə̷)̃́
ˋʢ9)7ïΖ)1жʴ@̀ǭѾQCǩҽJ8?͔ɭ¡¨~˲8Љ41ӞƆ 1ӟ
ə̷'U1~ o @ϔĎǏ?ėʬXЉ41ӨӤίʯ
 bdm¤~cj@̀ǭRˋӕ 660m ?Ιƅ8͓Л'U1ʢͿ@ǫƙOГƌˀʭĎ?ˎ­Oƌ­;:ˊ;͂Ɯ8Л5S%?3 19 óáXə̷)1ӞЌ 1; Ɔ 1ӟ
~ o @̀ǭRˋӕ 300m ?Ιƅ8͓Л'U1ӞƆ 1ӟ
ʢͿ@ǫƙJ1@ÞʟʭĎ?s¥w¥ Melia azedarach Γ?ˎ­8ͫб'U1ͫб'U1óá?3 3 óáXə̷)1ӞЌ 1ӟ
ə̷'U1~ o ?ϔĎǏXėʬ)1ίʯo^p^`ͷӗχ͙ϫΞ?řϘȱ?TЬɻЛĖ'U1J1жʴʞҗ³<bdm¤~cj
9~ o Óƥ?̭ЀӇ@ЦҎ'U;41өӤϊǖ ÌƁ?жʴ8@ѲŎ?жʴ8ͫб'U71bdm¤~cjQC~ o ͫб'U1bdm¤~cj@ˋӕ 660m Ó®8~ o @ˋӕ− 290 −

300m Ó®8ЦҎ'U7S1982 ȅQC 2007 ȅ?жʴʑ?̈́ȳΙƅ9Ʃ;ѵ@;41%?1M%UR?Ϳ@ѲŎ 35 ȅ?җ<ńͪӚǮĎ8ӆϻ;ėǽ?ƣĸ@;41N?9ϊRUT Ƌʩ 2 ͿÓƥ?̭ЀӇ<57@ÌƁ?жʴʞҗ<@ͫб'U;41ńͪӚǮ@Ō̈́Ϡ̩͂ƜïĈƌƓ9)7Ζ̀'U7S­ҟʘǞқ<Ġқ'U7T%9RƥʩͿ?êćːØ@ǟ;!̳̾8@ƥʩ̭ЀӇ@êć)7;N?9ϊRUT12)ƥʩ̭ЀӇ@ʂêćǮǵR?̛˺̱<¹47ü͓͖<êć+TřϘȱNT1MÌȡNv ¥hXβγ+TȪЙT ~ o ?ϔĎǏR@ʈЀQCϫΞR)Ьɻ˄Ė'U1ńͪӚǮ?̭ЀӇ?ӊȱ<57@%UJ8<жʴЉWU7R,%UěM7?ͣЛ9;T
Ìȡ@ə̷'U1bdm¤~cj?ϔĎǏXŧM7QSЯΫ;ӊȱėʬXЉńͪӚǮ<#T%UR?Ϳ?̈́ȼ͖ƌÝXʋR<+TȪЙT ÌƁə̷'U1óá@Ō̈́͂Ɯ<#Ṯщȥ͂XʋR<+T1M?ǄǈŢÝáėʬQCńͪӚǮҫƃ?̱̈́ƌ̀ǂ͖˄ФXЉ1M? DNA ėʬΓ<å͆+T¿ǈ8TӪӤйћ ʢжʴ@ʪÊҀĊΊƩǂ˵ËӐҀƩǂʪÊQCʃʢɱѤŃØ?¬ϋѬɧ<Ҙ+TŃǈXίCǊʀ)1N?8TжʴXǊʀ+T<147@͂Ɯ͝ʭ҉ȉǞΏŌʦΓ?ŞҘìːҘ<ƦƩ;ëǉXɅ47121̾ƌжʴXЉ­8@θşжʴ<ŏī)1Şė҉?жʴҢű?ɤĬX121ə̷жʴ8@̲<ƪ҉Űʋˣҋƻvcoˣ
ϮѾ˱ΤˣǶŗƩʛˣàʟŲʛˣʣǌ«ʓˣҌʟħˣӕǩ˽ŝˣʫʢ͝Âˣ
ʦ͇ȶÍˣƖэŰƬˣ̄ǶБŝˣR?ŃĩX121%%<̆Ȼй?ȺX͊)­$1;ȿʯ?©Ѿ@ʃʢǂЊɘϣØͷǂͨΆВĬҋӞ16H01794ӟ<QSȣRU1ӫӤȒ͆ɺ̶
Hayashi F, Shima A, Horikoshi K, Kawakami K, Segawa R, Aotsuka T, Suzuki S (2009) Limited
overwater dispersal and genetic differentiation of the snake-eyed skink Cryptoblepharus
nigropunctatus in the oceanic Ogasawara Islands, Japan. Zoological Science, 26: 543-549.
ƖэŰƬ Ӟ2008ӟ ńͪӚǮ?~cjӇ. ǞΏŌͨΆ, 33: 129-134.
Horner P (2007) Systematics of the snake-eyed skinks, Cryptoblepharus Wiegmann (Reptilia: Squamata:Scincidae) —an Australian-based review. Beagle, 3: 21–198.
ǞΏŌϠ̩͂ƜͨΆØ Ӟ1992ӟ ǞΏŌ?Ϡ̩, ŘÌʗҜ, ʪÊ.
Sakagami S (1961) An Ecological Perspective of Marcus Island, with Special Reference to Land Animals.
Pacific Science, 15: 82–104.
ŀͦ˔© Ӟ1983ӟ ńͪӚǮ?̭ЀӇ. ͂ƜȉϠ̩ïлǢ (κ) ńͪӚǮ?Ϡ̩, ʃʢ҉̱̈́̈́ͨΆs¥v¨, ʪÊ, 287–301.

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SUMMARY

Reptiles of Minami-Iwo-To Island, the Volcano Islands in 2017.

Kazuto KAWAKAMI1* & Yuki MURAKAMI2

1. Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
2. Department of Biology, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397,
Japan.
* kazzto@ffpri.affrc.go.jp (author for correspondence) In June 2017, a field survey was conducted on the current status of reptile fauna on Minami-Iwo-To
Island, the Volcano Islands. Only two reptile species, Cryptoblepharus nigropunctatus and Perochirus
ateles, were found up to elevations of 660 m and 300 m, respectively. Their ranges were not significantly
different from those recorded in 1982 and 2007.
Key words
Cryptoblepharus nigropunctatus, Ogasawara Islands, Perochirus ateles, Volcano Islands− 292 −Ɔ 1ӤńͪӚǮ<#ṰЀӇжʴ¡¨~9ə̷ƌ̥Ӟӛ: bdm¤~cj͕: ~o ӟ
Figure 1. Reptile survey route on Minami-Iwo-To Island. Black and white circles indicate capture
locations of Cryptoblepharus nigropunctatus and Perochirus atelesii, respectively.

− 293 −

− 294 −Ќ 1ӤńͪӚǮ8ə̷)1̭ЀӇ& *$)"!%(Table
1. Listof captured
reptilesMinami-Iwo-To
Islandin June 2017.
Table
1. Listof captured
reptilesin inMinamiiwotoin June2017.
# SpeciesDate
1   
Cryptoblepharus nigropunctatus2017.6.14
2   
Cryptoblepharus nigropunctatus2017.6.16
3   Cryptoblepharus nigropunctatus2017.6.16
4   
Cryptoblepharus nigropunctatus2017.6.16
5   
Cryptoblepharus nigropunctatus2017.6.16
6   
Cryptoblepharus nigropunctatus2017.6.17
7   
Cryptoblepharus nigropunctatus2017.6.20
8   
Cryptoblepharus nigropunctatus2017.6.20
9   
Cryptoblepharus nigropunctatus2017.6.20
10   
Cryptoblepharus nigropunctatus2017.6.21
11   
Cryptoblepharus nigropunctatus2017.6.22
12   
Cryptoblepharus nigropunctatus2017.6.22
13   
Cryptoblepharus nigropunctatus2017.6.22
14   
Cryptoblepharus nigropunctatus2017.6.22
15   
Cryptoblepharus nigropunctatus2017.6.22
16   
Cryptoblepharus nigropunctatus2017.6.22
17   
Cryptoblepharus nigropunctatus2017.6.22
18   
Cryptoblepharus nigropunctatus2017.6.22
19   
Cryptoblepharus nigropunctatus2017.6.25
20    Perochirus ateles
2017.6.24
21    Perochirus ateles
2017.6.24
22    Perochirus ateles
2017.6.24
Elevation (m)
10500
400
500
285
660
500
500
360
650500
500
500
500
500
500
500
500
300
10300300

Place' Slope failure at southeast part
 Col# Climing route Col# Climing route# Climing route Col
 Col# Climing route# Climing route
 Col
 Col
 Col
 Col
 Col
 Col
 Col
 Col# Climing route' Slope failure at southeast part#
 Climing route# Climing route