首页   按字顺浏览 期刊浏览 卷期浏览 Distribution and Migrations of two Cerithid Snails on a Sand Flat in Bermuda
Distribution and Migrations of two Cerithid Snails on a Sand Flat in Bermuda

 

作者: Wolfgang Wieser,   Manfred Grabner,   Franz Koch,  

 

期刊: Marine Ecology  （WILEY Available online 1981）
卷期: Volume 2, issue 1  

页码: 63-75

 

ISSN:0173-9565

 

年代: 1981

 

DOI:10.1111/j.1439-0485.1981.tb00091.x

 

出版商: Blackwell Publishing Ltd

 

关键词: Prosobranchs;Baiillaria minima;Cerithium lutosum;vertical migrations;sediment‐animal relationships;responses to light;responses to tidal movements;Orcadian rhythms;homing

 

数据来源: WILEY

 

摘要:

Abstract.Two species of cerithid prosobranchs,Baiillaria minimaandCerithium lutosum, live on a sand flat in Bermuda. The two species execute complex vertical migrations, but they respond differently to light intensity and to water level. This ensures that in the course of tidal and diurnal cycles their maxima of vertical distribution are sometimes in thesame, sometimes indifferentlayers of sediment. This leads to a partial separation of niches.

 

点击下载:  PDF (827KB)



返 回