A field study of settlement behaviour in<i>Balanus balanoides</i>and<i>Elminius modestus</i>(Cirripedia: Crustacea) in relation to competition between them

Abstract

There can be little doubt that competition for space, both inter- and intraspecific is a major factor in barnacle ecology. Southward &amp; Crisp (1956) first pointed out the role of competition between Balanus balanoides (L.) and Chthamalus stellatus (Poli) in south-west Britain which Connell (1959, 1961) later demonstrated experimentally. Crisp (1958) discussed competition between the indigenous B. balanoides and the immigrant Elminius modestus Darwin in the intertidal zone, and measurements of growth rates, using manipulated populations of these two species, indicated that inter- and intraspecific competition for space after settlement is intense (Crisp, 1964).