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- 速水 格
- 神奈川大学理学部応用生物科学科
書誌事項
- タイトル別名
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- Size changes of bivalves and a hypothesis about the cause of mass extinction
- ニマイガイルイ ノ タイ サイズ ヘンカ ト タイリョウ ゼツメツ ノ ヨウイ
この論文をさがす
説明
A number of studies concerning shell-size changes of bivalves in time and space are reviewed from an ecological viewpoint. Although various environmental factors may influence the body size of organisms, recent knowledge of deep-sea and submarine cave faunas indicates that food supply is of prime importance as a factor controlling the adult size and adaptive strategy of bivalves. Significant shell-size reduction of bivalves seems to have occurred at the same time with P/Tr and K/T mass extinctions, probably because large-sized species (or groups) were more or less selectively eliminated. I present here a hypothesis that oligotrophic conditions (especially reduction of primary production on a global scale) are responsible for these mass extinctions, even if such a condition may arise from various geologic and astronomical events.
収録刊行物
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- 化石
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化石 62 (0), 24-36, 1997
日本古生物学会
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詳細情報 詳細情報について
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- CRID
- 1390001204434105728
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- NII論文ID
- 110002703646
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- NII書誌ID
- AN00041606
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- ISSN
- 24242632
- 00229202
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- NDL書誌ID
- 4258681
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可