Download or read book The Status and Distribution of Freshwater Biodiversity in Northern Africa written by Nieves García and published by IUCN. This book was released on 2010 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This assessment is the first overview of the conservation status of 877 northern African freshwater species belonging to five taxonomic groupsfish, molluscs, dragonflies and damselflies, freshwater crabs and aquatic plantsin accordance with the IUCN regional Red List guidelines. Species at risk of regional extinction are mapped and conservation measures are proposed to reduce the probability of future declines.

Download or read book An Integrated System of Classification of Flowering Plants written by Arthur Cronquist and published by Columbia University Press. This book was released on 1981 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt: -- Natural History

Download or read book The Monocotyledons written by Rolf Dahlgren and published by . This book was released on 1982 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crab Orchard National Wildlife Refuge Comprehensive Conservation Plan written by and published by . This book was released on 2007 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flowering Plants Monocotyledons written by Klaus Kubitzki and published by Springer Science & Business Media. This book was released on 1998-08-27 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Rolf Dahlgren and I embarked on preparing this book series, Rolf took prime responsibility for monocotyledons, which had interested him for a long time. After finishing his comparative study and family classification of the mono cots, he devoted much energy to the acquisition and editing of family treatments for the present series. After his untimely death, Peter Goldblatt, who had worked with him, continued to handle further incoming monocot manuscripts until, in the early 1990s, his other obligations no longer allowed him to continue. At that time, some 30 manuscripts in various states of perfection had accumulated, which seemed to form a solid basis for a speedy completion of the FGVP monocots; with the exception of the grasses and orchids which would appear in separate volumes. I felt a strong obligation to do everything to help in publishing the manuscripts that had been put into our hands. I finally decided to take charge of them personally, although during my life as a botanist I had never seriously been interested in mono cots.

Download or read book Evolutionary Biology written by Max Hecht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixteen volumes and one supplement have now appeared in the series known as Evolutionary Biology. The editors continue to seek critical re views, original papers, and commentaries on controversial topics. It is our aim to publish papers primarily of greater length and depth than those normally published by society journals and quarterlies. The editors make every attempt to solicit manuscripts on an international scale and to see that every facet of evolutionary biology-classical or modern-is cov ered. Manuscripts should be sent to anyone of the following: Max K. Hecht, Department of Biology, Queens College of the City University of New York, Flushing, New York 11367; Bruce Wallace, Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061; Ghillean T. Prance, New York Botanical Garden, Bronx, New York 10458. The Editors vii Contents 1. Darwinian Selection of Self-Replicating RNA Molecules 1 Christ(~r K. Biehricher Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replication of Virus RNA in Vitro. . . . . . . . . . . . . . . . . . . . . . . . 2 Extracellular Darwinian Experiments. . . . . . . . . . . . . . . . . . . . . . 5 Characterization of the QI3 Replicase. . . . . . . . . . . . . . . . . . . . . . 9 Nonviral RNA Templates of QI3 Replicase. . . . . . . . . . . . . . . . . . II The Mechanism of RNA Replication . . . . . . . . . . . . . . . . . . . . . . 14 Initiation of Replication and Template Specificity . . . . . . . . . . . 14 Mechanism of Replica Chain Elongation. . . . . . . . . . . . . . . . . . 17 Termination of Replication. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Replication of RNA Variants . . . . . . . . . . . . . . . . . . . . . . . . . . 21 The Quasispecies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 De NOl'O Synthesis of Self-Replicating RNA. . . . . . . . . . . . . . . . . 27 The Mechanism of Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Selection in the Exponential Growth Phase. . . . . . . . . . . . . . . . 32 Selection in the Linear Growth Phase. . . . . . . . . . . . . . . . . . . . 35 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Appendix I. Replication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Appendix II. The Quasispecies. . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Appendix III. Selection under Various Conditions . . . . . . . . . . . . 44 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Download or read book The Vegetable Kingdom Or the Structure Classification and Uses of Plants written by John Lindley and published by . This book was released on 1846 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparative Embryology of Angiosperms Vol 1 2 written by Brij M. Johri and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 1243 pages. Available in PDF, EPUB and Kindle. Book excerpt: COMPARATIVE EMBRYOLOGY OF ANGIOSPERMS is a review of the developmental processes leading to sexual reproduction in flowering plants. On the basis of embryological data and certain evidences from other areas of study, it lays special emphasis on the relationship among and within the families and orders of angiosperms. Occasionally, inaccuracies in observation and interpretation are pointed out, alternative interpretations offered, gaps in our knowledge highlighted, and prospects outlined. The text is documented with 36 tables, 376 figures, and about 5000 literature citations, which contribute to making this book comprehensive. Besides students and research workers interested in angiosperm embyology, taxonomists, plant breeders, agriculturists, and horticulturists will also find much useful information in this treatise.

Download or read book The Vegetable Kingdom written by John Lindley and published by . This book was released on 1846 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Systematic Botany of Flowering Plants written by R E. Spichiger and published by CRC Press. This book was released on 2019-03-29 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principle objective of this book is to describe a range of families of flowering plants in a sequence corresponding to current phylogenetic classification based on the most recent results of molecular systematics. The selection of families is large and comprises families of temperate European flora as well as tropical flora. They are integrated in their respective orders and keys are given to help the reader recognize them. Each family is richly illustrated, the identifying characters being shown as clearly as possible. A glossary complements the overall didactic qualities of this reference.

Download or read book Flowering Plants written by K. Kubitzki and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: The original suggestion to organize a symposium about the classi fication and evolution of the Flowering Plants was made at, the International Botanical Congress at Leningrad in 1975, and the idea was so well accepted by several colleagues that plans for such a symposium quickly took shape. An organizing committee consisting of Professor H. MERXMULLER, Miinchen, Professor V. H. HEYWOOD, Reading, and Professor K. KUBITZKI, Hamburg, was set up. The conference took place on 7-12 September 197tl in the Institut fiir Allgemeine Botanik of the University of Hamburg under the auspices of the International Association for Plant Taxonomy and was at tended by 80 participants from 14 countries. There have been several meetings in recent years which have dealt with the origin and evolution of the Flowering Plants so that it might be questioned whether yet another symposium dealing with more or less the same subject were really "justified. As the reader will see from the contents of the book, this symposium differed from similar ones held recently in two respects: 1. Emphasis was given to methodological aspects of the classification of higher taxa, and 2. much classificatory and evolutionary evidence relating to the higher taxa of Flowering Plants was presented.

Download or read book Botanical Classifications written by Lloyd H. Swift and published by . This book was released on 1974 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides orientation by comparing eight major systems of angiosperm classification on an order by order basis. There is a general introduction to each order, a review of floral or plant formulae for major families of each order, and a comparison of the classification of each order and its families in the eight systems. Glossaries and indexes are provided to detail the original terminology used in each of the eight systems.

Download or read book The Vegetable Kingdom written by J. Lindley and published by . This book was released on 1847 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cat logo flor stico de Navarra written by Mikel Lorda López and published by Lulu.com. This book was released on 2013-11-30 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Primera obra moderna sobre las plantas vasculares de la Comunidad Foral de Navarra. NO ES UNA GUÍA FOTOGRÁFICA Viene estructurado por orden alfabético de familias. Se enumeran un total de 3073 taxones, de los que 2796 se son propios de la flora navarra actual. De cada uno se da su estatus de presencia; origen y ecología; hábitats de importancia comunitaria en los que se puede encontrar -cuando se trata de un taxon característico-; distribución general, en comarcas geográficas y biogeográficas (regiones Alpina, Atlántica y Mediterránea), en este último caso asignando un índice de frecuencia/abundancia; estatus legal de conservación cuando existe; observaciones de índole taxonómica o nomenclatural, errores de citas, localidades relevantes, presencia en el Catálogo español de especies exóticas invasoras, etc. Tiene un capítulo sintético sobre diversos aspectos de la flora navarra, sus grupos corológicos, endemismos, grado de abundancia/rareza por sectores corológicos y las plantas protegidas o catalogadas.

Download or read book Monocotyledons written by Paula Rudall and published by Royal Botanic Gardens Kew. This book was released on 1995 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Outlines of Botany written by Gilbert Thomas Burnett and published by . This book was released on 1835 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Systematics written by Gurcharan Singh and published by CRC Press. This book was released on 2019-06-07 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth edition of Plant Systematics is completely revised and updated. It incorporates the updated International Code of Nomenclature for Algae, Fungi and Plants (Shenzhen Code, 2018), the new version of PhyloCode (Beta version of Phylocode 5, 2014), APweb version 14 (September, 2018), revised Angiosperm Phylogeny Group classification (APG IV, 2016), new Pteridophyte Phylogeny Group Classification (PPG I, 2016), besides the updates since the publication of third edition. The book is a blend of classical fundamental aspects and recent developments, especially in the field of molecular systematics, cladistics and computer identification. Special attention has been given to information on botanical nomenclature, identification, molecular systematics and phylogeny of angiosperms. The complicated concepts of phylogeny, taxometrics and cladistics have been explained with a view to providing a comparison between these diverse but interactive fields of study. An attempt has been made to build upon a common example when exploring different methods, especially in procedures of identification, taxometrics and cladistics. The major systems of classification are evaluated critically. Discussion on major families of Pteridophytes, Gymnosperms and Angiosperms, especially those of major phylogenetic interest, form a major portion of this edition. The ebook includes nearly 500 color photographs set out in 36 pages covering plants from different parts of the world. In addition, 305 black & white illustrations have been included to provide a better understanding of the plants covered in the book.