Katalog - Lichenological literature

30422

Wilmanns O. (1988): Können Trockenrasen derzeit trotz Immissionen überleben? - Eine kritische Analyse des Xerobrometum im Kaiserstuhl, Carolinea, 46: 5–16

May dry grassland communities survive in spite of immissions? - A critical analysis of the Xerobrometum in the Kaiserstuhl/SW-Germany. The object of this study was to ascertain whether changes due to immission, in particular nitrogenous immission, have occurred in the dry grasslands of the Kaiserstuhl, belonging to the Xero- brometum artemisietosum VON ROCHOW 1948. The study was carried out by comparing very recent vegetational relevés (1987) with those from earlier decades (beginning 1926) and … Read more...

18966

Wilmanns O. (1959): Epiphytengesellschaften Nordgriechenlands in Verleich mit denen Mitteleuropas, Phyton [Horn, Austria], 8(1-2): 175-182

Greece; phytosociology. Zusammenfassung. In dem nordgriechischen Quercus coccifera-Gebiet wurden zwei Epiphytengesellschaften bestände hin, nämlich auf eine für das Mediterrangebiet sehr hohe relative Luftfeuchtigkeit. des Xanthorion parietinae OCHSNER 28 untersucht, die nur auf lokalklimatisch begünstigten Stellen auftreten. Das Physcietum ascendentis OCHSNER 28 besiedelt freie Stämme und ist im Vergleich zu Mitteleuropa xerischer ausgebildet. Das Ramalino (farinaceae)- Physcietum — … Read more...

9594

Wilmanns O. & Bibinger H. (1969): Die Epiphytenvegetation der Mosswalder im Breisgau, Vegetatio, 17: 352-359

SUMMARY. There is given a synopsis of the epiphytic communities of woodland on moist ground in the subatlantic-submediterranean climate of the Upper Rhine Valley. On old Quercus robur one finds a complex of Anomodonto-Isothecietum at the base, Arthonietum impolitae, Opegraphetum fuscellae and Antitrichietum curtipendulae on the lower and middle trunk and on the upper parts the Phlyctido-Sulcatetum. Carpinus betulus is covered with the Pyrenuletum nitidae. On Fraxinus excelsior one can find the Opegraphetum … Read more...

32302

Wilmanns O. & Wirth V. (1968): Die Flechtenvegetation der Wutachschlucht, Mitteilungen des Badischen Landesvereins für Naturkunde und Naturschutz, N.F., Freiburg im Breisgau, 9(4): 725–733

9659

Wilske B. & Kesselmeier J. (1999): First Measurements of the Cl- and C2- Organic Acids and Aldehydes Exchange Between Boreal Lichens and the Atmosphere, Phys. Chem. Earth (B), 24(6): 125-128

Abstract - We report on the initial results of measurements of the exchange of organic acids and aldehydes between lichens and the atmosphere under controlled climate chamber conditions. We found a formic acid deposition to lichens depending on thallus water content. Investigation of aldehyde exchange revealed a small and time limited emission of acetaldehyde which is enhanced by anoxic conditions. Formaldehyde emission was never observed. Read more...

11933

Wilske B., Burgheimer J., Karnieli A., Zaady E., Andreae M.O., Yakir D. & Kesselmeier J. (2008): The CO2 exchange of biological soil crusts in a semiarid grass-shrubland at the northern transition zone of the Negev desert, Israel, Biogeosciences, 5: 1411-1423

30074

Wilson A. & Wheldon J.A. (1914): Alpine vegetation on Ben-y-Gloe, Perthshire, Journal of Botany, 52: 227–235

9240

Wilson F.R.M. (1891): On lichens collected in the Colony of Victoria, Australia, Journ. Linn. Soc. (Bot.), 28: 353-374

many new taxa described from Australia Read more...

4937

Wilson M. J., Jones D., McHardy M. J. (1981): The weathering of serpentinite by Lecanora atra, Lichenologist, 13: 167-176

22824

Wilson M.J. & Jones D. (1983): Lichen weathering of minerals: implications for pedogenesis, Geological Society, London, Special Publications, 11: 5-12

principally to the activity of the fungal component in excreting extracellular organic acids, particularly oxalic acid. This results in extensive surface etching of the minerals, the conversion of some minerals to siliceous relics, the formation of poorly ordered weathering products and the crystallization of oxalates at the rock/lichen interface and within the lichen thallus. Interpretation of these features is facilitated by the fact that they can be simulated experimentally. The relevance … Read more...