THE ECOLOGY OF THE SANDY BEACHES OF THE CAPE PENINSULA, SOUTH AFRICA PART 2: THE MODE OF LIFE OFBULLIA(GASTROPODA: PROSOBRANCHIATA)
作者:
A.C. Brown,
期刊:
Transactions of the Royal Society of South Africa
(Taylor Available online 1971)
卷期:
Volume 39,
issue 3
页码: 281-319
ISSN:0035-919X
年代: 1971
DOI:10.1080/00359197109519120
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
This paper gives an account of the present state of our knowledge of the sandy-beach snail,Bullia, on the beaches of the Cape Peninsula. The work deals mainly with the two surf-loving species,B. digitalisandB. rhodostoma, though mention is made ofB. laevissima, a species found in quiet waters. Reproductive behaviour is described for the first time. Much of the work reported concerns chemo-reception and the responses which lead to feeding. Some conclusions are reached with regard to growth and life-span. The distribution of the three species is dealt with, and the factors responsible for this distribution are discussed. Attempts to estimate the numbers ofBulliaon Muizenberg beach are described. Some mention is made of water- and heat-relationships, defence mechanisms and parasites.
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