Detection of human mediated evolution by fossil records

• Project/Area Number: 21340151
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Stratigraphy/Paleontology
• Research Institution: Tohoku University
• Principal Investigator: CHIBA Satoshi 東北大学, 大学院・生命科学研究科, 准教授 (10236812)
• Co-Investigator(Kenkyū-buntansha): URABE Jotaro 東北大学, 大学院・生命科学研究科, 教授 (50250163) ; TOYOFUKU Takashi 海洋研究開発機構, 地球内部変動研究センター, 研究員 (30371719)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000); Fiscal Year 2011: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2010: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000); Fiscal Year 2009: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
• Keywords: 化石 / 進化 / 陸産貝類 / 多様性 / 保全 / 適応 / 年代測定 / 人間活動 / 古環境 / 環境変化

Research Abstract

We investigated how ecosystem has responded to human activity on the basis of analyses of carbon stable isotope ratio of the fossil land snails. In addition, evolutionary changes caused by anthropogenic impacts was estimated by historical records. The results of these surveys showed that evolutionary changes in shell color and shape and habitat preference have occurred since human colonization. Some of these changes were caused by impacts of nonnative species. Evolutionary changes by human activity cannot be ignored in planning conservation programs for endangered species.

Research Products

• [Journal Article] Snails can survive passage through a bird's digestive system (2012)
  • Author(s): Wada, S., Kawakami, K., Chiba, S.
  • Journal Title: Journal of Biogeography Volume: 39 Issue: 1 Pages: 69-73
  • DOI: 10.1111/j.1365-2699.2011.02559.x
  • Peer Reviewed
• [Journal Article] Vertigo shimochii Kuroda & Amano 1960 synonymized with Gastrocopta servilis (Gould, 1843)based on conchological and DNA sequence data (2012)
  • Author(s): Nekola, J. C., Jones, A., Martinez, G., Martinez, S., Mondragon, K., Lebeck, T., Slapcinsky, J., Chiba, S.
  • Journal Title: Zootaxa Volume: 3161 Pages: 48-52
  • Peer Reviewed
• [Journal Article] Vertigo shimochii Kuroda & Amano 1960 synonymized with Gastrocopta servilis (Gould, 1843) based on conchological and DNA sequence data (2012)
  • Author(s): Nekola J., et al.
  • Journal Title: Zootaxa Volume: 3161 Pages: 48-52
  • Peer Reviewed
• [Journal Article] How does life adapt to a gravitational environment?: the outline of the terrestrial gastropod shell (2011)
  • Author(s): Okajima, R., Chiba, S.
  • Journal Title: American Naturalist Volume: 178 Issue: 6 Pages: 801-809
  • DOI: 10.1086/662674
  • Peer Reviewed
• [Journal Article] Selectivity of terrestrial gastropod extinctions on an oceanic archipelago and insights into the anthropogenic extinction process (2011)
  • Author(s): Chiba, S., Roy, K.
  • Journal Title: Proc. Natl. Acad. Sci. USA Volume: 108 Issue: 23 Pages: 9496-9501
  • DOI: 10.1073/pnas.1100085108
  • Peer Reviewed
• [Journal Article] Seashore in the mountain : limestone-associated land snail fauna on the oceanic Hahajima Island (2011)
  • Author(s): Wada, S, Chiba, S.
  • Journal Title: Biol. J. Linn. Soc. Volume: 102 Issue: 3 Pages: 686-693
  • DOI: 10.1111/j.1095-8312.2010.01604.x
  • Peer Reviewed
• [Journal Article] Invasive rats alter assemblage characteristics of land snails in the Ogasawara Islands (2010)
  • Author(s): Chiba, S.
  • Journal Title: B iological Conservation Volume: 143 Issue: 6 Pages: 1558-1563
  • DOI: 10.1016/j.biocon.2010.03.040
  • Peer Reviewed
• [Journal Article] Invasive non-native species' provision of refugia for endangered native species (2010)
  • Author(s): Chiba, S.
  • Journal Title: Conservation Biology Volume: 24 Issue: 4 Pages: 1141-1147
  • DOI: 10.1111/j.1523-1739.2010.01457.x
  • Peer Reviewed
• [Journal Article] Interspecific interference competition alters habitat use patterns in two species of land snails (2010)
  • Author(s): Kimura, K., Chiba, S.
  • Journal Title: Evolutionary Ecology Volume: 24 Pages: 1141-1147
  • Peer Reviewed
• [Journal Article] Predation impacts of invasive flatworm, Platydemus manokwari on eggs and hatchlings of land snails (2010)
  • Author(s): Iwai, N., Sugiura, S., Chiba, S.
  • Journal Title: Journal of Molluscan Studies Volume: 76 Issue: 3 Pages: 275-278
  • DOI: 10.1093/mollus/eyq007
  • Peer Reviewed
• [Journal Article] Prey-tracking behavior in the invasive terrestrial planarian Platydemus manokwari (2010)
  • Author(s): Iwai, N., Sugiura, S., Chiba, S.
  • Journal Title: Naturwissenschaften Volume: 97 Issue: 11 Pages: 997-1002
  • DOI: 10.1007/s00114-010-0717-4
  • Peer Reviewed
• [Journal Article] Prey tracking behavior in the invasive terrestrial planarian Platydemus manokwari (Platyhelminthes, Tricladida) (2010)
  • Author(s): Iwai, N., Sugiura, S., Chiba, S.
  • Journal Title: Naturwissenschaften Volume: 97 Pages: 997-1002
  • Peer Reviewed
• [Journal Article] Invasive rats alter assemblage characteristics of land snails in the Ogasawara Islands (2010)
  • Author(s): Chiba, S.
  • Journal Title: Biological Conservation Volume: 143 Pages: 1558-1563
  • Peer Reviewed
• [Journal Article] Associations between stable carbon isotope ratio and vegetation in modern and fossil land snails Mandarina chichijimana (2009)
  • Author(s): Chiba, S., Davison, A
  • Journal Title: Paleontological Research 13 Pages: 151-157
  • Peer Reviewed
• [Journal Article] Morphological divergence as a result of common adaptation to a shared environment in lands snails in the genus Hirasea (2009)
  • Author(s): Chiba, S.
  • Journal Title: Journal of Molluscan Studies 75 Pages: 253-259
  • Peer Reviewed
• [Journal Article] Cause of bimodal distribution in the shape of a terrestrial gastropod (2009)
  • Author(s): Okajima, R., Chiba, S
  • Journal Title: Evolution 63 Pages: 2877-2887
  • Peer Reviewed
• [Presentation] 形態と系統の著しい不一致:北海道に産するエゾマイマイ群の例 (2012)
  • Author(s): 森井悠太, 横山潤, 河田雅圭, 千葉聡
  • Organizer: 日本貝類学会
  • Place of Presentation: 東京
  • Year and Date: 2012-04-14
• [Presentation] オトメマイマイ属とオオベソマイマイ属における分子系統ならびに殻形態の進化 (2012)
  • Author(s): 平野尚浩, 亀田勇一, 木村一貴, 千葉聡
  • Organizer: 日本貝類学会
  • Place of Presentation: 東京
  • Year and Date: 2012-04-14
• [Presentation] オトメマイマイ属とオオベソマイマイ属における分子系統ならびに殼形態の進化 (2012)
  • Author(s): 平野尚浩, 亀田勇一, 木村一貴, 千葉聡
  • Organizer: 日本貝類学会
  • Place of Presentation: 東京
  • Year and Date: 2012-04-14
• [Presentation] 小笠原諸島における陸生貝類の種多様性パターンと景観の履歴 (2011)
  • Author(s): 千葉聡
  • Organizer: 日本生態学会
  • Place of Presentation: 札幌
  • Year and Date: 2011-03-10
• [Presentation] 劇的な形態の変化:北海道に産するエゾマイマイ群の例 (2011)
  • Author(s): 森井悠太, 横山潤, 河田雅圭, 千葉聡
  • Organizer: 日本生態学会
  • Place of Presentation: 札幌
  • Year and Date: 2011-03-10
• [Presentation] 陸産貝類における交尾時の粘液注入が交配相手の生殖器構造に与える影響 (2011)
  • Author(s): 木村一貴、千葉聡
  • Organizer: 日本生態学会
  • Place of Presentation: 札幌
  • Year and Date: 2011-03-10
• [Presentation] 微小陸貝が鳥の捕食によって移住する可能性:追加検証 (2011)
  • Author(s): 和田慎一郎, 千葉聡, 川上和人
  • Organizer: 日本生態学会
  • Place of Presentation: 札幌
  • Year and Date: 2011-03-09
• [Presentation] 小笠原諸島におけるカタマイマイ属の適応放散 (2009)
  • Author(s): 千葉聡
  • Organizer: 種生物学会
  • Place of Presentation: 東京
  • Year and Date: 2009-12-15
• [Book] 生物多様性と生態学-遺伝子・種・生態系 (2012)
  • Author(s): 下直、千葉聡、井鷺裕司
  • Publisher: 朝倉書店
• [Book] 生物多様性と生態学-遺伝子・種・生態系 (2012)
  • Author(s): 宮下直、千葉聡、井鷺裕司
  • Publisher: 朝倉書店
• [Remarks]
• [Remarks]
  • URL: http://www.lifesci.tohoku.ac.jp/wordpress/wp-content/themes/twentyten/pdf/1105_2.pdf