BRABY, C.E.*; SOMERO, G.N.: Larval settlement success and physiological adaptation in the patchwork distribution of introduced and native bay mussels (Mytilus spp.) in the central CA hybrid zone California is home to two bay mussel species: the native Mytilus trossulus and the invasive M. galloprovincialis, which was introduced to southern CA in the early 1900’s […]

PODOLSKY, R.D.: Is temperature variability good or bad for intertidal embryos? Development in an intertidal habitat exposes embryos to a suite of potentially stressful conditions, including large and rapid fluctuations in temperature. Embryo masses of the mollusc Melanochlamys diomedia are deposited in soft-sediment tide pools where temperature change on a spring tide can exceed 23°C […]

PHILLIPS, N.E.: Effects of larval nutrition on juvenile performance: the relative importance of constant vs. variable food rations For marine invertebrates, increasing evidence points to the important consequences larval history can have for subsequent early juvenile performance. In an earlier experiment on the marine mussel Mytilus galloprovincialis, I raised larvae at 3 constant food rations, […]

SCHNEIDER, Kimberly R.; HILBISH, Thomas J.; HELMUTH, Brian S.T.: Differential movement as a mechanism of selection in Mytilus spp. Two predominantly intertidal species of mussel, Mytilus edulis and Mytilus galloprovincialis, successfully hybridize in southwest England. In this hybrid zone directional selection favors M. galloprovincialis and closely related hybrids and wave exposure and temperature have been […]

HARLEY, C.D.G.*; HELMUTH, B.S.T.: Spatial variation in invertebrate upper limits, thermal stress, and effective tidal height Physiological stress is generally assumed to play a predominant role in limiting the upper vertical limits of intertidal species. However, several stressors (e.g. temperature, desiccation, limited time for resource acquisition) may operate on any given species, and the specific […]

O’DONNELL, M.J.: Quantification Of Hydrodynamic Microhabitats In The Intertidal Zone Of Wave-Swept Shores. The intertidal zone of wave swept shores is an area of extreme hydrodynamic forces. Organisms have evolved many strategies for survival in the path of large, breaking waves. One such strategy, which many investigators have explored, is the use of microhabitats in […]

JOHNSON, L.E.; LAMOTE, M.; LEMOINE, Y.: Photosynthesis of fucoid algae during periods of emersion: ontogenetic and interspecific responses to varying levels of environmental stress. Physical conditions experienced during low tide may affect the performance and survival of intertidal algae thereby contributing to patterns of distribution. Qu�bec rocky shores are dominated by three fucoid algae (Ascophyllum […]

NIELSEN, K.J.*; MENGE, B.A.; LUBCHENCO, J.: Fluorescing fronds: Snapshots of the physiological state of intertidal macrophytes Disentangling the effects of multiple stressors on the physiological performance of organisms in the field is a major goal for physiological ecologists. Many ecological models invoke changes in physiological performance along environmental gradients as a major driver of the […]

BURNAFORD, J.L.; HOFMANN, G.E.: Ecological and Physiological Effects of Thermal Stress on Intertidal Snails Evaluating the cumulative consequences of repeated exposure to sub-lethal stress on individuals, populations and communities requires integrated studies that assess both stress avoidance and tolerance under ecologically relevant conditions. Using a combination of ecological and physiological techniques, we estimated the relative […]

DAHLHOFF, E.P.; FREETO, J.C.; KEIL, A.P.; MELLO, J.D.; MENGE, B.A.: Biochemical indices of bottom-up effects in Pacific rocky intertidal habitats Previous studies of nearshore benthic communities have shown that food availability influences the metabolic activity of suspension feeding invertebrates. These studies have shown that RNA:DNA ratios respond rapidly to increases in nearshore concentrations of phytoplankton […]