Wind-driven settlement patterns in the acorn barnacle Semibalanus balanoides
نویسندگان
چکیده
منابع مشابه
Genetic evidence for kin aggregation in the intertidal acorn barnacle (Semibalanus balanoides).
It is generally assumed that larvae of benthic species are thoroughly mixed in the plankton and distributed randomly at settlement. Yet, it has also been hypothesized that a combination of larval gregarious behaviour coupled with particular oceanographic conditions may prevent larvae from mixing completely, and result in nonrandom spatial distributions following settlement. Using microsatellite...
متن کاملEnvironmental heterogeneity and balancing selection in the acorn barnacle Semibalanus balanoides.
The northern acorn barnacle Semibalans banlanoides occupies several intertidal microhabitats which vary greatly in their degree of physical stress. This environmental heterogeneity creates distinct selection regimes which can maintain genetic variation in natural populations. Despite considerable attention placed on the link between spatial variation in fitness and balancing selection at specif...
متن کاملField evidence for an association between growth and protein polymorphism in the acorn barnacle Semibalanus balanoides
Organisms living in highly heterogeneous environments are useful for examining the effects of associations between phenotypes and ecologically relevant genes in the field. Here, we tested the null hypothesis of no association between the variation in 2 fitness-related traits (growth and fecundity) and polymorphism at 2 enzymatic loci, MPI* and GPI*, known to be subject to strong spatial selecti...
متن کاملRegional variation in the spatial scale of selection at MPI* and GPI* in the acorn barnacle Semibalanus balanoides (Crustacea).
Elucidating the ecological processes by which adaptive genetic polymorphism is maintained in heterogeneous environments requires knowledge on the spatial scale at which alternate habitats affect genotype-specific fitness. The general objective of this study was to document patterns of temporal and spatial variation of genetic polymorphism in the acorn barnacle (Semibalanus balanoides) at MPI* a...
متن کاملTurbidity triggers larval release by the intertidal barnacle Semibalanus balanoides
Gravid adults of the common intertidal barnacle Semibalanus balanoides (L.) brood fully developed larvae until individuals perceive some cue from the environment that triggers synchronous larval release. The prevailing hypothesis has been that phytoplankton blooms trigger release because they provide a food source for nauplius larvae. Through observations and field experiments, we tested the hy...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1996
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps137103