Search Results - "Olsen, J. L."

Phylogeographic differentiation versus transcriptomic adaptation to warm temperatures in Zostera marina, a globally important seagrass by Jueterbock, A., Franssen, S. U., Bergmann, N., Gu, J., Coyer, J. A., Reusch, T. B. H., Bornberg-Bauer, E., Olsen, J. L.

“…Populations distributed across a broad thermal cline are instrumental in addressing adaptation to increasing temperatures under global warming. Using a…”
Get full text

Does EO NDVI seasonal metrics capture variations in species composition and biomass due to grazing in semi-arid grassland savannas? by Olsen, J. L, Miehe, S, Ceccato, P, Fensholt, R

“…Most regional scale studies of vegetation in the Sahel have been based on Earth observation (EO) imagery due to the limited number of sites providing…”
Get full text

Glacial refugia and recolonization pathways in the brown seaweed Fucus serratus by HOARAU, G, COYER, J.A, VELDSINK, J.H, STAM, W.T, OLSEN, J.L

“…The last glacial maximum (20 000-18 000 years ago) dramatically affected extant distributions of virtually all northern European biota. Locations of refugia…”
Get full text

Real-time PCR reveals a high incidence of Symbiodinium clade D at low levels in four scleractinian corals across the Great barrier Reef : implications for symbiont shuffling by MIEOG, J. C, VAN OPPEN, M. J. H, CANTIN, N. E, STAM, W. T, OLSEN, J. L

“…Reef corals form associations with an array of genetically and physiologically distinct endosymbionts from the genus Symbiodinium. Some corals harbor different…”
Get full text

Phylogeny and temporal divergence of the seagrass family Zosteraceae using one nuclear and three chloroplast loci by Coyer, J. A, Hoarau, G, Kuo, J, Tronholm, A, Veldsink, J, Olsen, J. L

“…Seagrasses are among the most productive habitats in the marine realm, performing several crucial physical and biological ecosystem services. One group of…”
Get full text

Post-ice age recolonization and differentiation of Fucus serratus L. (Phaeophyceae; Fucaceae) populations in Northern Europe by Coyer, J. A., Peters, A. F., Stam, W. T., Olsen, J. L.

“…The seaweed Fucus serratus is hypothesized to have evolved in the North Atlantic and present populations are thought to reflect recolonization from a southern…”
Get full text

Quantification of algal endosymbionts (Symbiodinium) in coral tissue using real-time PCR by MIEOG, J.C, VAN OPPEN, M.J.H, BERKELMANS, R, STAM, W.T, OLSEN, J.L

“…Understanding the flexibility of the endosymbioses between scleractinian corals and single-cell algae of the genus Symbiodinium will provide valuable insights…”
Get full text

Population genetics of dwarf eelgrass Zostera noltii throughout its biogeographic range by COYER, J. A, DIEKMANN, O. E, SERRAO, E. A, PROCACCINI, G, MILCHAKOVA, N, PEARSON, G. A, STAM, W. T, OLSEN, J. L

“…The marine angiosperm Zostera noltii (dwarf eelgrass), an important facilitator species and food source for invertebrates and waterfowl, predominantly inhabits…”
Get full text

Introduced or glacial relict? Phylogeography of the cryptogenic tunicate Molgula manhattensis (Ascidiacea, Pleurogona) by Haydar, D., Hoarau, G., Olsen, J. L., Stam, W. T., Wolff, W. J.

“…Aim The tunicate Molgula manhattensis has a disjunct amphi-Atlantic distribution and a recent history of world-wide introductions. Its distribution could be…”
Get full text

A microsatellite-based estimation of clonal diversity and population subdivision in Zostera marina, a marine flowering plant by Reusch, T. B. H., Stam, W. T., Olsen, J. L.

“…We examined the genetic population structure in eelgrass (Zostera marina L.), the dominant seagrass species of the northern hemisphere, over spatial scales…”
Get full text

Hybridization of the marine seaweeds, Fucus serratus and Fucus evanescens (Heterokontophyta: Phaeophyceae) in a 100-year-old zone of secondary contact by Coyer, J. A., Peters, A. F., Hoarau, G., Stam, W. T., Olsen, J. L.

“…(monoecious) was accidentally introduced into the Oslofjord. Putative hybridization with the endemic…”
Get full text

Pre-zygotic isolation in the macroalgal genus Fucus from four contact zones spanning 100–10 000 years: a tale of reinforcement? by Hoarau, G., Coyer, J. A., Giesbers, M. C. W. G., Jueterbock, A., Olsen, J. L.

“…Hybrid zones provide an ideal natural experiment to study the selective forces driving evolution of reproductive barriers and speciation. If hybrid offspring…”
Get full text

Population structure of plaice (Pleuronectes platessa L.) in northern Europe: microsatellites revealed large-scale spatial and temporal homogeneity by Hoarau, G., Rijnsdorp, A. D., Van Der Veer, H. W., Stam, W. T., Olsen, J. L.

“…Philopatry to spawning grounds combined with well‐known migratory patterns in the flatfish Pleuronectes platessa (plaice) has led to the hypothesis that…”
Get full text

Eelgrass Meadows in the California Channel Islands and Adjacent Coast Reveal a Mosaic of Two Species, Evidence for Introgression and Variable Clonality by Coyer, J.A, Miller, K.A, Engle, J.M, Veldsink, J, Cabello-Pasini, A, Stam, W.T, Olsen, J.L

“…BACKGROUND AND AIMS: Seagrasses are important facilitator species in shallow, soft-bottom marine environments worldwide and, in many places, are threatened by…”
Get full text

Molecular genetic evidence for probable reticulate speciation in the coral genus Madracis from a Caribbean fringing reef slope by DIEKMANN, O. E, BAK, R. P. M, STAM, W. T, OLSEN, J. L

“…For many corals, the existence of morphologically distinct yet sympatric populations/species implies reproductive isolation. Conversely, the presence of many…”
Get full text

Dr. Zompo: an online data repository for Zostera marina and Posidonia oceanica ESTs by Wissler, L, Dattolo, E, Moore, A D, Reusch, T B H, Olsen, J L, Migliaccio, M, Bornberg-Bauer, E, Procaccini, G

“…As ecosystem engineers, seagrasses are angiosperms of paramount ecological importance in shallow shoreline habitats around the globe. Furthermore, the…”
Get full text

Inheritance patterns of ITS1, chloroplasts and mitochondria in artificial hybrids of the seaweeds Fucus serratus and F. evanescens (Phaeophyceae) by COYER, J. A., PETERS, A. F., HOARAU, G., STAM, W. T., OLSEN, J. L.

“…Patterns of nuclear and organelle inheritance among artificial hybrids of the seaweeds Fucus serratus and F. evanescens were detected using single-strand…”
Get full text

Phylogenetic analyses of Caulerpa taxifolia (Chlorophyta) and of its associated bacterial microflora provide clues to the origin of the Mediterranean introduction by Meusnier, I., Olsen, J. L., Stam, W. T., Destombe, C., Valero, M.

“…The accidental introduction of Caulerpa taxifolia into the Mediterranean is no longer under dispute. What has eluded researchers until now, is definitive…”
Get full text

No habitat correlation of zooxanthellae in the coral genus Madracis on a Curaçao reef by DIEKMANN, O. E, BAK, R. P. M, TONK, L, STAM, W. T, OLSEN, J. L

“…Symbiotic dinoflagellates belonging to the genus Symbiodinium (zooxanthellae) play an important role in ecological specialization and physiological adaptation…”
Get full text

Population genetics of Zostera noltii along the west Iberian coast : consequences of small population size, habitat discontinuity and near-shore currents by DIEKMANN, Onno E, COYER, James A, FERREIRA, Joao, OLSEN, Jeanine L, STAM, Wytze T, PEARSON, Gareth A, SERRAO, Ester A

“…The effects of oceanographic patterns on marine genetic biodiversity along the SW Iberian Peninsula are poorly understood. We addressed the question of whether…”
Get full text