Activity Patterns and Habitat Preferences of Two Herbivorous Gastropods(Gibbula umbilicaris and Jujubinus exasperatus)on Leaves of the Mediterranean Seagrass Posidonia oceanica
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- Takada Yoshitake
- Laboratory of Benthic Ecology, Stazione Zoologica‘ Anton Dohrn’ di Napoli
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- Russo Giovanni F.
- Department of Animal Biology, University of Catania, Sicily, Italy
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- Mazzella Lucia
- Laboratory of Benthic Ecology, Stazione Zoologica‘ Anton Dohrn’ di Napoli
書誌事項
- タイトル別名
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- Activity Patterns and Habitat Preferences of Two Herbivorous Gastropos (Gibbula umbilicaris and Jujubinus exasperatus) on Leaves of the Mediterranean Seagrass Posidonia oceanica
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Abstract: Laboratory experiments were carried out to observe the day/night activity patterns and habitat preferences of two gastropods, Gibbula umbilicaris and Jujubinus exasperatus, on leaves of the seagrass Posidonia oceanica. Both G. umbilicaris and J. exasperatus preferred old (apical) parts of leaves to young (basal) ones, and vertically oriented leaves rather than horizontal ones. Four types of behavior (rest, shaking epipedalic tentacles without any other motion, directional movements, and shell twisting mainly for foraging) were observed. Also, interspecific differences in the day/night activity pattern were recognized; G. umbilicaris mainly rested during the day and actively moved and foraged at night, whereas J. exasperatus continued to move about and forage during both day and night, resulting in a less marked day/night pattern. These results partly explain the observations of previous studies, in which both species were more abundantly sampled on seagrass leaves at night than by day.
収録刊行物
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- BENTHOS RESEARCH
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BENTHOS RESEARCH 54 (2), 71-80, 1999
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詳細情報 詳細情報について
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- CRID
- 1390001205480457472
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- NII論文ID
- 10005102700
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- NII書誌ID
- AN10565057
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- ISSN
- 18838901
- 02894548
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- NDL書誌ID
- 4978223
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可