Download or read book Studies on the Genus Daphnia O F M ller with Especial Reference to the Mode of Reproduction written by Kaj Berg and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Genus Daphnia O F Muller with Special Reference to the Mode of Reproduction written by Kaj Berg and published by . This book was released on 1931 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Genus Daphnia O F M ller with Special Referance to the Mode of Reproduction written by Kaj Berg and published by . This book was released on 1931 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Genus Daphnia O F M ller with Especial Reference to the Mode of Reproduction With 7 Plates and 15 Textfigures Reprinted from Videnskabelige Meddelelser Fra Dansk Naturhistorisk Forening written by Kaj Berg and published by . This book was released on 1931 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Genus Daphnia O F M ller with Especial Referencs to the Mode of Reproduction written by and published by . This book was released on 1931 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Genus Daphnia O F M ller with Especial Reference to the Modo of Reproduction written by Kaj Berg and published by . This book was released on 1931 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evolution of Reproductive Isolation in Daphnia written by Tiffany Chin and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The process of speciation has fascinated biologist for centuries and stimulated the research of reproductive isolation and the evolutionary forces responsible for cladogenesis. Reproductive isolation studies often look at the current barriers that restrict gene flow between species to determine which barriers are important in maintaining species boundaries. On the other hand, studies of cladogenesis examine historical events in speciation. The two approaches are complementary in the understanding of current and historical patterns that shape the speciation process. This thesis examines the process of speciation in Daphnia and the evolutionary forces associated with the splitting of species, by quantifying reproductive isolating barriers and using a phylogenomics context. In Chapter 2, I review the literature and synthesize the current knowledge of the mechanisms of speciation in the Daphnia genus, highlighting the roles of geography, ecology, and biology in species diversification as well as identifying important areas of future research. In Chapter 3, I examine the strengths of prezygotic and postzygotic reproductive isolating barriers between two closely related species, Daphnia pulex and Daphnia pulicaria. In Chapters 4 and 5, I utilize a phylogenomic approach to examine species diversification and the evolutionary forces associated with speciation of the genus Daphnia. Specifically, in Chapter 4, I reconstruct the evolutionary history of this diverse genus using whole-genome sequencing data and examine the role of geography and ecology in promoting speciation. Furthermore, in Chapter 5, I examine the role of hybridization in speciation within the two diverse species complexes, D. pulex and Daphnia longispina, which are known to exhibit frequent hybridization. By using a combinatorial approach, this thesis provides an evolutionary perspective from historical to current evolutionary events which furthers the understanding of the process of speciation"--
Download or read book Insectivorous Plants With illustrations written by Charles Darwin and published by . This book was released on 1875 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The R Book written by Michael J. Crawley and published by John Wiley & Sons. This book was released on 2007-06-13 with total page 953 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-level language of R is recognized as one of the mostpowerful and flexible statistical software environments, and israpidly becoming the standard setting for quantitative analysis,statistics and graphics. R provides free access to unrivalledcoverage and cutting-edge applications, enabling the user to applynumerous statistical methods ranging from simple regression to timeseries or multivariate analysis. Building on the success of the author’s bestsellingStatistics: An Introduction using R, The R Book ispacked with worked examples, providing an all inclusive guide to R,ideal for novice and more accomplished users alike. The bookassumes no background in statistics or computing and introduces theadvantages of the R environment, detailing its applications in awide range of disciplines. Provides the first comprehensive reference manual for the Rlanguage, including practical guidance and full coverage of thegraphics facilities. Introduces all the statistical models covered by R, beginningwith simple classical tests such as chi-square and t-test. Proceeds to examine more advance methods, from regression andanalysis of variance, through to generalized linear models,generalized mixed models, time series, spatial statistics,multivariate statistics and much more. The R Book is aimed at undergraduates, postgraduates andprofessionals in science, engineering and medicine. It is alsoideal for students and professionals in statistics, economics,geography and the social sciences.
Download or read book Zooplankton written by Petra. H. Lenz and published by Routledge. This book was released on 2021-09-11 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zooplankton is a major work of reference for researchers in plankton biology, physiology and behavior, which combines behavioral and psychological approaches to the study of plankton on present and interdisciplinary investigation of sensory processes in pelagic environments. The breadth of perspective thus achieved provides valuable insights into the larger scale ecological processes of biological productivity, community structure and population dynamics. Technological advances in almost all aspects of biological research have opened up opportunities for a re-examination of the sensory ecology of planktonic organisms. In this wide-ranging collection, leading researchers in planktonic behavior and physiology address the rapidly developing interface between these two major areas. The studies presented range from the laboratory to the field and from the cell to the whole organism, but share the common goal of understanding the special sensory world of organisms that live in pelagic environments and how their behavior and physiology relate to it.
Download or read book Water Quality Assessments written by Deborah V Chapman and published by CRC Press. This book was released on 1996-08-22 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook, now thoroughly updated and revised in its second edition, gives comprehensive advice on the designing and setting up of monitoring programmes for the purpose of providing valid data for water quality assessments in all types of freshwater bodies. It is clearly and concisely written in order to provide the essential information for all agencies and individuals responsible for the water quality.
Download or read book The Beak of the Finch written by Jonathan Weiner and published by Vintage. This book was released on 2014-05-14 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: PULITZER PRIZE WINNER • A dramatic story of groundbreaking scientific research of Darwin's discovery of evolution that "spark[s] not just the intellect, but the imagination" (Washington Post Book World). “Admirable and much-needed.... Weiner’s triumph is to reveal how evolution and science work, and to let them speak clearly for themselves.”—The New York Times Book Review On a desert island in the heart of the Galapagos archipelago, where Darwin received his first inklings of the theory of evolution, two scientists, Peter and Rosemary Grant, have spent twenty years proving that Darwin did not know the strength of his own theory. For among the finches of Daphne Major, natural selection is neither rare nor slow: it is taking place by the hour, and we can watch. In this remarkable story, Jonathan Weiner follows these scientists as they watch Darwin's finches and come up with a new understanding of life itself. The Beak of the Finch is an elegantly written and compelling masterpiece of theory and explication in the tradition of Stephen Jay Gould.
Download or read book Marine Cyanobacteria written by Loïc Charpy and published by Musee Oceanographique. This book was released on 1999 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Classification Literature Automated Search Service written by and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Mountain Conservation in a Changing World written by Jordi Catalan and published by Springer. This book was released on 2017-08-03 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides case studies and general views of the main processes involved in the ecosystem shifts occurring in the high mountains and analyses the implications for nature conservation. Case studies from the Pyrenees are preponderant, with a comprehensive set of mountain ranges surrounded by highly populated lowland areas also being considered. The introductory and closing chapters will summarise the main challenges that nature conservation may face in mountain areas under the environmental shifting conditions. Further chapters put forward approaches from environmental geography, functional ecology, biogeography, and paleoenvironmental reconstructions. Organisms from microbes to large carnivores, and ecosystems from lakes to forest will be considered. This interdisciplinary book will appeal to researchers in mountain ecosystems, students and nature professionals. This book is open access under a CC BY license.
Download or read book Index Medicus written by and published by . This book was released on 2001 with total page 1736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book Lost Sex written by Isa Schön and published by Springer Science & Business Media. This book was released on 2009-09-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex is the queen of problems in evolutionary biology. Generations of researchers have investigated one of the last remaining evolutionary paradoxes: why sex exists at all. Given that sexual reproduction is costly from an evolutionary point of view, one could wonder why not all animals and plants reproduce asexually. Dozens of contemporary hypotheses attempt to explain the prevalence of sex and its advantages and predict the early extinction of fully asexual lineages. The major theme of this book is: what is the fate of animal and plant groups in which sex is lost? Initial chapters discuss theory behind asexual life: what major disadvantages do asexual groups have to face, what are the genetic and ecological consequences and what does this theory predict for more applied aspects of asexual life, for example in agricultural pests, diseases as well as in cultural crops such as grapes. Cases studies in many animals (focusing on both invertebrates and vertebrates) and plants reveal parallel, but also singularly novel adaptations to the absence of meiosis and syngamy. And last but not least, are asexuals really doomed to early extinction or do genuine ancient asexuals exist? This book assembles contributions from the most important research groups dealing with asexual evolution in eukaryotes. It is a milestone in research on parthenogenesis and will be useful to undergraduate as well as graduate students and to senior researchers in all fields of evolutionary biology, as the paradox of sex remains its queen of problems.
