ALBERT

Beschreibung / Inhaltsverzeichnis: CONTENTS: Preface. - Part A Problem of effectiveness. - 1 Introduction. - 2 Current data-handling for fossils. - Part B Proposed solution. - 3 Suggested new Paleontologic Data-Handling Code (PDHC). - 4 Records are primary. - 5 Nomenclature/language of records. - 6 The Paleotaxon. - 7 Replacing the Genus. - 8 The Record package. - Part C Applications for information-handling. - 9 Earth and biologic evolution. - 10 Proposed new Period Classification of fossils of past organisms. - 11 Paleoenvironment investigation. - 12 General stratigraphic procedures. - 13 Limitations of the use of zones. - 14 Event-Correlation. - Part D Further considerations. - 15 Human and other problems. - 16 Main plan re-stated. - Appendices 1 and 2: Worked examples of GOR and PTR forms. - Glossary. - References. - Index.

Beschreibung / Inhaltsverzeichnis: This book discusses procedures for handling information derived from the fossil record, and the application of this information to solving problems in geological succession and earth history. The main purpose of the book is to analyse shortcomings of the existing procedures, and to propose in their place an alternative set of data-handling arrangements of much greater simplicity and efficiency. The author argues that the procedures in current use are cumbersome and inefficient, and that, partly as a consequence of these information-handling methods, palaeontology has failed to make advances commensurate with technological improvements. In this book he proposes a system which could make possible the integrated use of every detail of geological information taken from the rocks. This would achieve better resolution in sequence correlation, in paleoecologic interpretation and in logging the course of evolution. Compatibility of style with existing records has been maintained to avoid any danger of loss of valuable data, and to simplify the process of reevaluating old records. The book will be of interest to all paleontologists, particularly those dealing with microfossils, and is intended to stimulate discussion and criticism of both the analysis and the proposals.

Beschreibung / Inhaltsverzeichnis: R. B. Rickards and A. J. Chapman: Preface / Geological Society, London, Special Publications, 20:vii-ix, doi:10.1144/GSL.SP.1986.020.01.01 --- J. Rigby: A critique of graptolite classification, and a revision of the suborders Diplograptina and Monograptina / Geological Society, London, Special Publications, 20:1-12, doi:10.1144/GSL.SP.1986.020.01.02 --- Adam Urbanek and Piotr Mierzejewski: A possible new pattern of cortical deposit in Tremadoc dendroid graptolites from chert nodules / Geological Society, London, Special Publications, 20:13-19, doi:10.1144/GSL.SP.1986.020.01.03 --- Bernd-Dietrich Erdtmann: On the anisograptid affiliation of ‘Dictyonema’ flabelliforme (Eichwald 1840) and its nomenclatural consequences / Geological Society, London, Special Publications, 20:21-25, doi:10.1144/GSL.SP.1986.020.01.04 --- A. C. Lenz and D. E. Jackson: Arenig and Llanvirn graptolite biostratigraphy, Canadian Cordillera / Geological Society, London, Special Publications, 20:27-45, doi:10.1144/GSL.SP.1986.020.01.05 --- Stanley C. Finney and Stig M. Bergström: Biostratigraphy of the Ordovician Nemagraptus gracilis Zone / Geological Society, London, Special Publications, 20:47-59, doi:10.1144/GSL.SP.1986.020.01.06 --- Stig M. Bergström: Biostratigraphic integration of Ordovician graptolite and conodont zones—a regional review / Geological Society, London, Special Publications, 20:61-78, doi:10.1144/GSL.SP.1986.020.01.07 --- N. W. Schleiger: Cluster analysis of isograptid individuals from Bullengarook, Victoria, Australia / Geological Society, London, Special Publications, 20:79-96, doi:10.1144/GSL.SP.1986.020.01.08 --- Nils Spjeldnaes: Astogenetic development of some lower Ordovician graptolites from Norway / Geological Society, London, Special Publications, 20:97-102, doi:10.1144/GSL.SP.1986.020.01.09 --- Stanley C. Finney: Heterochrony, punctuated equilibrium, and graptolite zonal boundaries / Geological Society, London, Special Publications, 20:103-113, doi:10.1144/GSL.SP.1986.020.01.10 --- Jianhua Yu and Yiting Fang: The Ordovician graptolite-bearing strata of Xiushui drainage basin, Jiangxi, southern China and their correlation / Geological Society, London, Special Publications, 20:115-117, doi:10.1144/GSL.SP.1986.020.01.11 --- Charles E. Mitchell: Morphometric studies of Climacograptus (Hall) and the phylogenetic significance of astogeny / Geological Society, London, Special Publications, 20:119-129, doi:10.1144/GSL.SP.1986.020.01.12 --- Li-pu Fu: Graptolite zones of upper Ordovician to middle Silurian age in a continuous section at Ziyang, Shaanxi, China / Geological Society, London, Special Publications, 20:131-134, doi:10.1144/GSL.SP.1986.020.01.13 --- William B.N. Berry: Stratigraphic significance of Glyptograptus persculptus group graptolites in central Nevada, U.S.A. / Geological Society, London, Special Publications, 20:135-143, doi:10.1144/GSL.SP.1986.020.01.14 --- P. Legrand: The lower Silurian graptolites of Oued In Djerane: a study of populations at the Ordovician-Silurian boundary / Geological Society, London, Special Publications, 20:145-153, doi:10.1144/GSL.SP.1986.020.01.15 --- A.M. Obut and N.V. Sennikov: Graptolite zones in the Ordovician and Silurian of the Gorny Altai / Geological Society, London, Special Publications, 20:155-164, doi:10.1144/GSL.SP.1986.020.01.16 --- S. Henry Williams: Top Ordovician and lowest Silurian of Dob’s Linn / Geological Society, London, Special Publications, 20:165-171, doi:10.1144/GSL.SP.1986.020.01.17 --- Shi-cheng Huo and De-gan Shu: The Silurian graptolite-bearing strata in China / Geological Society, London, Special Publications, 20:173-179, doi:10.1144/GSL.SP.1986.020.01.18 --- Merete Bjerreskov: Silurian graptolites from N Greenland / Geological Society, London, Special Publications, 20:181-189, doi:10.1144/GSL.SP.1986.020.01.19 --- Bao Deng: On the morphological characteristics of the spiralis group and the stratigraphic significance of the appearance of Cyrtograptus / Geological Society, London, Special Publications, 20:191-195, doi:10.1144/GSL.SP.1986.020.01.20 --- Shi-cheng Huo, De-gan Shu, and Fu Li-pu: A mathematical study of the Cyrtograptus sakmaricus lineage with discussions of the evolutionary trends in this lineage / Geological Society, London, Special Publications, 20:197-205, doi:10.1144/GSL.SP.1986.020.01.21 --- A. M. Obut and N. M. Zaslavskaya: Families of Retiolitida and their phylogenetic relations / Geological Society, London, Special Publications, 20:207-219, doi:10.1144/GSL.SP.1986.020.01.22 --- D. E. B. Bates and N. H. Kirk: Mode of secretion of graptolite periderm, in normal and retiolite graptolites / Geological Society, London, Special Publications, 20:221-236, doi:10.1144/GSL.SP.1986.020.01.23 --- J. Paškevičius: Assemblages of Silurian graptolites in various facies of the East Baltic region / Geological Society, London, Special Publications, 20:237-245, doi:10.1144/GSL.SP.1986.020.01.24 --- Milena Mihajlović Pavlović: Silurian graptolites from Serbia, Yugoslavia / Geological Society, London, Special Publications, 20:247, doi:10.1144/GSL.SP.1986.020.01.25 --- D. C. Palmer: The monotypic ‘population’ accompanying the lectotype of Saetograptus varians (Wood 1900) / Geological Society, London, Special Publications, 20:249-259, doi:10.1144/GSL.SP.1986.020.01.26 --- P. N. Dilly: Modern pterobranchs: observations on their behaviour and tube building / Geological Society, London, Special Publications, 20:261-269, doi:10.1144/GSL.SP.1986.020.01.27

Beschreibung / Inhaltsverzeichnis: Résumé L'étude de la multiplication initiale des effectifs de T. trifolii, élevés au laboratoire sur pousses de différents pieds de luzerne, a servi de test d'antibiose pour les cultures en plein champ. La distribution de l'antibiose, dans des échantillons importants de plantes appartenant à des cultivars sélectionnés pour leur résistance aux pucerons, a présenté une forme en J, c'est-à-dire que la majorité des plantes était très résistante, quelques unes apparemment sensibles, et un certain nombre intermédiaires entre ces deux extrêmes. Pour un niveau donné d'antibiose, la reproduction, la mortalité et ainsi la distribution initiale en âges dans les populations de pucerons ont été généralement identiques. La multiplication végétative de plantes présentant un gradient de résistance à l'intérieur d'un cultivar et l'utilisation d'un plan de distribution des boutures ont permis l'étude de ce qui semble être l'effet de l'hétérogénéité spatiale sur la résistance des cultures aux attaques de pucerons. La simulation d'une invasion de la culture par les pucerons en plaçant des adulte sur toutes les boutures d'un rang ne pouvait donner une explication de la croissance de la population que si les pucerons se déplacaient le long du rang pour découvrir et exploiter les pieds les plus sensibles. Une distribution par taches, comme on peut l'envisager dans un champ, ne devrait pas gêner les pucerons, car bien que les mouvements d'évasion soient stimulés par les niveaux de résistance élevés (de non-préférence), on peut en déduire que les pucerons se déplaceront sur des plantes très résistantes, eventuellement pour atteindre des plantes moins résistantes placées derriere.