@article {578, title = {Community level engineering effects of Triglochin maritima (seaside arrowgrass) in a salt marsh in northern New England, USA}, journal = {Journal of Ecology}, volume = {92}, year = {2004}, pages = {589{\textendash}597}, abstract = {

1. Ecosystem engineers can influence other organisms indirectly by modifying their physical habitat and are common in all natural communities. We examined the mechanisms underlying the effects of engineering by seaside arrowgrass, Triglochin maritima (Juncaginaceae), in a northern New England forb panne. Within these waterlogged areas, T. maritima creates elevated rings that support high plant cover compared with nearly bare adjacent substrate.

2. The influence on vegetation patterns of ring height and facilitation by neighbouring vegetation were examined in the field with T. maritima rings (elevation + vegetation), experimentally lowered rings (vegetation only), artificially raised mud (elevation only) and bare mud. Transplants of four perennial species, along with naturally occurring seedlings, were followed to assess plant performance. We also monitored edaphic conditions, seed dispersal and plant cover in experimental plots over two growing seasons.

3. All transplanted species showed increased success in raised treatments (in which the substrate showed an increase in reductive potential and a decrease in waterlogging) while there was no significant relationship to the presence of neighbouring vegetation. Seed supply, however, was enhanced by both ring elevation and the presence of neighbours.

4. A glasshouse experiment to test the response of T. maritima to waterlogging showed an increased production of shallow roots, suggesting a mechanism that may contribute to ring formation.

5. Our results indicate that community consequences of engineering by T. maritima are predominantly due to raised ring formation that ameliorates waterlogging stress and thereby promotes increased species diversity. Consequently, T. maritima may be an important target species for conservation, as sea level rise is expected to increase waterlogging stress in marshes.

}, keywords = {ecosystem engineering, facilitation, habitat modification, physical stress, reductive potential, salt marsh ecology, species diversity, Triglochin maritima, waterlogging}, doi = {10.1111/j.0022-0477.2004.00903.x}, author = {Fogel, Benjamin N. and Crain, Caitlin M. and Bertness, Mark D.} } @article {308, title = {Molecular evidence on plant divergence times}, journal = {American Journal of BotanyAmerican Journal of Botany}, volume = {91}, number = {10}, year = {2004}, pages = {1656-1665}, keywords = {adaptive radiation, biogeography, divergence time, molecular clock, phylogeny, rates}, author = {Sanderson, Michael J. and Thorne, Jeffrey L. and Wikstr{\"o}m, Niklas and Bremer, Kare} } @article {333, title = {Molecular phylogeny of monocotyledons inferred from combined analysis of plastid matK and rbcL gene sequences}, journal = {Journal of Plant ResearchJournal of Plant Research}, volume = {117}, year = {2004}, pages = {109-120}, abstract = {Using matK and rbcL sequences (3,269 bp in total) from 113 genera of 45 families, we conducted a combined analsysis to contribute to the understanding of major evolutionary relationships in the monocotyledons. Trees resulting from the parsimony analysis are similar to those generated by earlier single or multiple gene analyses, but their strict consensus tree provides much better resolution of relationships among major clades. We find that Acorus (Acorales) is a sister group to the rest of the monocots, which receives 100\% bootstrap support. A clade comprising Alismatales is diverged as the next branch, followed successively by Petrosaviaceae, the Dioscoreales-Pandanales clade, Liliales, Asparagales and commelinoids. All of these clades are strongly supported (with more than 90\% bootstrap support). The sister-group relationship ...}, keywords = {Hanguanaceae, matK, molecular phylogeny, monocotyledons, Petrosaviaceae, rbcL}, author = {Tamura, Minoru N. and Yamashita, Jun and Fuse, Shizuka and Haraguchi, Masatake} } @article {269, title = {North Atlantic phylogeography and large-scale population differentiation of the seagrass Zostera marina L.}, journal = {Molecular EcologyMolecular Ecology}, volume = {13}, year = {2004}, pages = {1923-1941}, keywords = {Ice Age, ITS, microsatellites, phylogeography, seagrass, Zostera marina}, author = {Olsen, Jeanine L. and Stam, Wytze T. and Coyer, James A. and Reusch, Torsten B.H. and Billingham, Martin and Bostr{\"o}m, Christoffer and Calvert, Elizabeth and Christie, Hartvig and Granger, Stephen and Lumi{\`e}re, Richard la and Milchakova, Nataliya and Oudot-Le Secq, Marie-Pierre and Procaccini, Gabriele and Sanjabi, Bahram and Serrao, Ester and Veldsink, Jan and Widdicombe, Stephen and Wyllie-Echeverria, Sandy} } @inbook {195, title = {Juncaginaceae}, booktitle = {Nouvelle Flore de la Belgique, du Grand-Duch{\'e} de Luxembourg, du Nord de la France et des R{\'e}gions voisines (Pteridophytes et Spermatophytes)}, year = {2004}, publisher = {Jardin botanique national de Belgique}, organization = {Jardin botanique national de Belgique}, edition = {5}, address = {Meise}, author = {Lambinon, Jacques and Delvosalle, L{\'e}on and Duvigneaud, Jacques} } @article {212, title = {Evolution of the species-rich Cape flora}, journal = {Phil. Trans R. Soc. Lond. BPhil. Trans R. Soc. Lond. B}, volume = {359}, year = {2004}, pages = {1623-1632}, keywords = {Cape Flora, evolutionary radiation, diversification rate, molecular clocks, Restionaceae, non-parametric rate smoothing}, author = {Linder, H. Peter and Hardy, Chris R.} } @inbook {144, title = {Juncaginaceae}, booktitle = {Flowering Plants of the Neotropics}, year = {2004}, note = {gute Abbildung Triglochin striata}, pages = {452-453}, publisher = {Princeton University Press}, organization = {Princeton University Press}, address = {Princeton}, author = {Haynes, Robert R.}, editor = {Mori, Scott A. and Henderson, Andrew and Stevenson, Dennis Wm. and Heald, Scott V.} } @article {156, title = {Origins of the southeastern Australian vegetation}, journal = {Phil. Trans R. Soc. Lond. BPhil. Trans R. Soc. Lond. B}, volume = {359}, year = {2004}, pages = {1537-1549}, abstract = { Australia is an ancient continent with an interesting geological history that includes a recent major shift in its position, both globally and compared to neighbouring land masses. This has led to a great deal of confusion over many years about the origins of the Australian biomes. The plant fossil record is now clarifying this, and it is claer that the ancient Gondwanan rainforests that covered Australia while it was still part of that supercontinent contained many of the elements of the modern vegetation. However, major climatic sifting, along with responses to other factors, including soil nutrient levels, disturbance regimes, atmospheric CO2 levels, fire frequency and intensity, glaciations and the arrival of humans, have had profound impacts on the Australian vegetation and its present-day management cannot be properly understood without an appreciation of this vast history, and the fossil record has a vital role to play in maintaining the health of this continent{\textquoteright}s vegetation into the future.}, keywords = {Australian vegetation, palaeobiology, Cenozoic, Cretaceous, Gondwana}, author = {Hill, Robert S.} } @article {177, title = {The age of major monocot groups inferred from 800+ rbcL sequences}, journal = {Botanical Journal of the Linnean SocietyBotanical Journal of the Linnean Society}, volume = {146}, year = {2004}, pages = {385-398}, keywords = {Cretaceous, dating, fossils, NPRS, phylogeny, Tertiary}, author = {Janssen, Thomas and Bremer, K{\r a}re} } @article {114, title = {Araceae from the Early Cretaceous of Portugal: evidence on the emergence of monocotyledons}, journal = {Proc. Natl. Acad. Sci. USAProc. Natl. Acad. Sci. USA}, volume = {101}, number = {47}, year = {2004}, pages = {16565-16570}, keywords = {fossil angiosperms, angiosperm evolution, striate pollen, zona-aperturate pollen, extinctions}, author = {Friis, Else Marie and Pedersen, Kaj Raunsgaard and Crane, Peter R.} } @article {132, title = {Analyse de la biodiversit{\'e} floristique des zones humides du Maroc. Flore rare, menac{\'e}e et halophile}, journal = {Acta Botanica MalacitanaActa Botanica Malacitana}, volume = {29}, year = {2004}, note = {p. 58: Flore rare ou menac{\'e}eJuncaginaceaeTriglochin palustris L.Vuln{\'e}rable (en voie de r{\'e}gression et pourrait devenir rare court terme).R (Issagu{\`e}ne Immenzin) MA (lac d{\textquoteright}Ouiouane, vall{\'e}e de Senoual, daya-t-Hachlaf, Ait Makhlouf, chemin Boudy, source de l{\textquoteright}oued Zad, vall{\'e}e de l{\textquoteright}Aguelmame depuis l{\textquoteright}Aeouggourh jusqu{\textquoteright}{\`a} la station du chemin Boudy) HA (mare de Tafraout-n-Oura au pied de l{\textquoteright}Anromer, vall{\'e}e de l{\textquoteright}assif Melloul de 2200 {\`a} 2300m, Tizi-n-Taoualt au dessus de Tounfite, entre Imilchil et lac Tislit, Assif Mgoun).Triglochin striata Ruiz \& PavonRR (tr{\'e}s rare - nombre de localit{\'e}s connues < 5).Maroc atlantique nord (Moulay Bou-Selham, marge nord de merja Zerga).p. 62: Flore halophileT. maritima L.T. striata Ruiz \& Pavon}, pages = {43-66}, abstract = {Analysis of the moroccan wetlands floristical diversity: rare, threatened and halophilous flora. The moroccan wetlands flora shows a great floristical richness of these ecosystems, estimated at more than 670 species and subspecies (83 families) which can be supplemented by at least 272 others taxa considered rather as terrestrials but can colonize periodically these biotopes. This flora shows a rate of endemism close to 6,5 \%, but the most fact is the great proportion of rare or threatened taxa (estimated at 34\%). The halophilous flora was a subjet of particular comment considering the prevalence of the salt biotopes in Morocco, either by the number or the extent of the sites. It counts 115 species and subspecies distributed among 20 families.}, keywords = {Biodiversity, wetlands flora, rare flora, threatened flora, halophilous flora, Morocco}, author = {Hammada, Soumaya and Dakki, Mahamed and Ibn Tattou, Mohamed and Ouyahya, Aicha and Fennane, Mohamed} } @article {64, title = {Studies in the Alismataceae. XII. Floral organogenesis in Damasonium alisma and Baldellia ranunculoides, and comparisons with Butomus umbellatus}, journal = {Canadian Journal of BotanyCanadian Journal of Botany}, volume = {82}, year = {2004}, pages = {528-539}, keywords = {Baldellia, Butomus, Damasonium, Alismatidae, flower, organogenesis}, author = {Charlton, W. Alan} } @article {65, title = {Monocot relationships: an overview}, journal = {American Journal of BotanyAmerican Journal of Botany}, volume = {91}, number = {10}, year = {2004}, pages = {1645-1655}, keywords = {Acorus, angiosperms, classification, molecular clock, monocot classification, monocot phylogenetics, mycoparasitic angiosperm phylogeny}, author = {Chase, Mark W.} } @article {66, title = {Evolution of apocarpy in Alismatidae using phylogenetic evidence from rbcL gene sequence data}, journal = {Botanical Bulletin of Academia Sinica}, volume = {45}, year = {2004}, pages = {33-40}, keywords = {Alismatidae, apocarpy, basally connate carpels, rbcL gene, single carpel, syncarpy, unicarpellate}, author = {Chen, Jin-Ming and Chen, Dan and Gituru, Wahiti Robert and Wang, Qing-Feng and Guo, You-Hao} } @article {76, title = {Radiation of the Australian flora: what can comparisons of molecular phylogenies across multiple taxa tell us about the evolution of diversity in present-day communities?}, journal = {Phil. Trans. R. Soc. Lond. B (The Royal Society)}, volume = {359}, year = {2004}, pages = {1551-1571}, abstract = {The Australian fossil record shows that ca. 25 Myr ago, the aseasonal-wet biome (rainforest and wet heath) gave way to the unique Australian sclerophyll biomes dominated by eucalypts, acacias and casuarinas. This transition coincided with tectonic isolation of Australia, leading to cooler, drier, more seasonal climates. From 3 Myr ago, aridification caused rapid opening of the central Australian arid zone. Molecular phylogenies with dated nodes have provided new perspectives on how these events could have affected the evolution of the Australian flora. During the Mid-Cenozoic (25-10 Myr ago) period of climatic change, there were rapid radiations in slerophyll taxa, such as Banksia, eucalypts, pea-flowered legumes and Allocasuarina. At the same time, taxa restricted to the seasonal-wet biome (Nothofagus, Podocarpaceae and Araucariaceae) did not radiate or were depleted by extinction. During the Pliocene aridification, two Eremean biome taxa (Lepidium and Chenopodiaceae) radiated rapidly after dispersing into Australia from overseas. It is clear that the biomes have different histories. Lineages in the aseasonal-wet biome are species poor, with sister taxa that are species rich, either outside Australia or in the sclerophyll biomes. In conjunction with the fossil record, this indicates depletion of the Australian aseasonal-wet biome from the Mid-Cenozoic. In the sclerophyll biomes, there have been multiple exchanges between the southwest and southeast, rather than single large endemic radiations after a vicariance event. There is need for rigorous molecular phylogenetic studies so that additional questions can be addressed, such as how interactions between biomes may have driven the speciation process during radiations. New studies should include the hitherto neglected monsoonal tropics.}, keywords = {Australia, molecular dating, climate change, Cenozoic, rapid radiation, extinction}, author = {Crisp, Mike and Cook, Lyn and Steane, Dorothy} } @article {86, title = {A phylogeny of the monocots, as inferred from rbcL and atpA sequence variation, and a comparison of methods for calculating jackknife and bootstrap values}, journal = {Systematic BotanySystematic Botany}, volume = {29}, number = {3}, year = {2004}, pages = {467-510}, keywords = {phylogeny, monocots, rbcL, atpA, jackknife, bootstrap}, author = {Davis, Jerrold I. and Stevenson, Dennis W. and Petersen, Gitte and Seberg, Ole and Campbell, Lisa M. and Freudenstein, John V. and Goldman, Douglas H. and Hardy, Christopher R. and Michelangeli, Fabian A. and Simmons, Mark P. and Specht, Chelsea D. and Vergara-Silva, Francisco and Gandolfo, Mar{\'\i}a} }