Diversification before the most recent glaciation in Balanus glandula.

Sources of invasions of a northeastern Pacific acorn barnacle, Balanus glandula, in Japan and Argentina

Within years of its introduction, the North American barnacle Balanus glandula Darwin, 1854 became an abundant member of rocky intertidal communities in Japan and Argentina. To determine the regional sources of these invasions, we compared mitochondrial cytochrome c oxidase subunit 1 (COI) and nuclear elongation factor 1 alpha (EF1) genotypes of native and introduced populations. Previously des...

The Affect of Low Tide on the Digestion of Balanus glandula, the Acorn Barnacle

Growth Rate as a Measure of Food Value in Thaidid Gastropods: Assumptions and Implications for Prey Morphology and Distribution

Rates of body growth were measured for three species of rocky intertidal gastropods: Thais (or Nucella) lumellosa (Gmelin), T. (or N.) canaliculata (Duclos), and T. (or N.) emarginata (Deshayes). Three size classes of each predator species were grown experimentally in cages at two tidal heights on four size classes of each prey species: Semibalanus cariosus (Pallas), Balanus glandula Darwin, an...

Prolonged Withdrawal: A Possible Predator Evasion Behavior in Balanus glandula (Crustacea: Cirripedia)

The duration of cirral withdrawal in Balanus glandula (Darwin) varies by a factor of three depending on the type of stimulus applied. Contact with potential predators including thaidid gastropods (Thais emarginata, T. lamellosa), and forcipulate asteroids (Leptasterias hexactis, Pycnopodia helianthoides) elicits significantly longer withdrawal durations than contact with an herbivorous gastropo...

Linking stages of life history: How larval quality translates into juvenile performance for an intertidal barnacle (Balanus glandula).

Many marine invertebrates with complex life cycles produce planktonic larvae that experience environmental conditions different from those encountered by adults. Factors such as temperature and food, known to impact the larval period, can also affect larval size and consequently the size of newly settled juveniles. After documenting natural variation in the size of cyprids (the final larval sta...