Melanism

Melanism PDF Author: M. E. N. Majerus
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 372

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Book Description
Melanism: Evolution in Action describes investigations into a ubiquitous biological phenomenon, the existence of dark, or melanic, forms of many species of mammals, insects, and some plants. Melanism is a particularly exciting phenomenon in terms of our understanding of evolution. Unlike manyother polymorphisms, the rise of a melanic population within a species is a visible alteration. Not only this, but melanism may sometimes occur dramatically quickly compared to other evolutionary change. Examples of melanism include one of the most famous illustrations of Darwinian naturalselection, the peppered moth. This book, the first written on melanism since 1973, gives a lucid and up-to-date appraisal of the subject. The book is divided into ten chapters. The first four chapters place melanism into its historical and scientific context, with illustrations of its occurrence,and physical and genetic properties. Chapters 5-9 look in more detail at melanism in moths and ladybirds, explaining the diversity of evolutionary reasons for melanism, and the complexities underlying this apparently simple phenomenon. The final chapter shows how the study of melanism has contibutedto our understanding of biological evolution as a whole. Written in an engaging and readable style, by an author whose enthusiasm and depth of knowledge is apparent throughout, this book will be welcomed by all students and researchers in the fields of evolution, ecology, entomology, and genetics.It will also be of relevance to professional and amateur entomologists and lepidopterists alike.

Melanism

Melanism PDF Author: M. E. N. Majerus
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 372

Get Book Here

Book Description
Melanism: Evolution in Action describes investigations into a ubiquitous biological phenomenon, the existence of dark, or melanic, forms of many species of mammals, insects, and some plants. Melanism is a particularly exciting phenomenon in terms of our understanding of evolution. Unlike manyother polymorphisms, the rise of a melanic population within a species is a visible alteration. Not only this, but melanism may sometimes occur dramatically quickly compared to other evolutionary change. Examples of melanism include one of the most famous illustrations of Darwinian naturalselection, the peppered moth. This book, the first written on melanism since 1973, gives a lucid and up-to-date appraisal of the subject. The book is divided into ten chapters. The first four chapters place melanism into its historical and scientific context, with illustrations of its occurrence,and physical and genetic properties. Chapters 5-9 look in more detail at melanism in moths and ladybirds, explaining the diversity of evolutionary reasons for melanism, and the complexities underlying this apparently simple phenomenon. The final chapter shows how the study of melanism has contibutedto our understanding of biological evolution as a whole. Written in an engaging and readable style, by an author whose enthusiasm and depth of knowledge is apparent throughout, this book will be welcomed by all students and researchers in the fields of evolution, ecology, entomology, and genetics.It will also be of relevance to professional and amateur entomologists and lepidopterists alike.

Pattern Formation in Zebrafish

Pattern Formation in Zebrafish PDF Author: Lilianna Solnica-Krezel
Publisher: Springer
ISBN: 9783642536670
Category : Science
Languages : en
Pages : 438

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Book Description
Authored by leading experts in the field, this book provides the first comprehensive overview of the mechanisms of early patterning and morphogenesis in zebrafish. It summarizes the current knowledge and the key questions for the next decade of research.

British Moths

British Moths PDF Author: James William Tutt
Publisher:
ISBN:
Category : Moths
Languages : en
Pages : 418

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Book Description


Of Moths and Men

Of Moths and Men PDF Author: Judith Hooper
Publisher: W. W. Norton & Company
ISBN: 9780393325256
Category : Nature
Languages : en
Pages : 412

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Book Description
In this revelatory work, Judith Hooper uncovers the intellectual rivalries, petty jealousies, and flawed science behind one of the most famous experiments in evolutionary biology. Bernard Kettlewell's 1953 experiment on the peppered moths of England made him a media star on the order of Jonas Salk -- but also an unlikely tragic hero. As Hooper recounts in this rollicking scientific detective story, the truth can be subverted when the stakes are very high. Book jacket.

Conservation of Endangered Freshwater Fish in Europe

Conservation of Endangered Freshwater Fish in Europe PDF Author: Arthur Kirchhofer
Publisher: Birkhäuser
ISBN: 3034890141
Category : Science
Languages : en
Pages : 340

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Book Description
Two events have recently improved the prospects of protecting fish and their environment in Switzerland: the acceptance of a new Federal Water Protection Law in the plebiscite of May 17th 1992, and the new Federal Legislation on Fisheries, in force since January 1st 1994. With this legal framework, the possibilities for protection of nature and landscape have now considerably improved in Switzerland. The most important aims of the Federal Law on Water Protection are to safeguard the natural habitats of the native flora and fauna and water as the habitat of aquatic organisms. This includes not only the preservation or restoration of water quality in lakes and rivers, but also, in rivers used for hydroelectricity, irrigation or as industrial or other water supplies, the maintenance of sufficient water to fulfill the minimal requirements for fish. However, good quality water in sufficient quan tities alone is not enough to guarantee the survival of fish. Intact fish habitats comprise various phYsical structures including plenty of hiding places, hunting grounds, reproduction and nursery areas within suitable distances from each other. This third aspect of conservation and restoration of aquatic habitats is a central point in the new Federal Law on Fisheries. Whereas the former versions of this law were more concerned with fishery regulations, the recent legislation defines new areas of responsibility for the federal and the cantonal governments.

Lepidoptera Genetics

Lepidoptera Genetics PDF Author: Roy Robinson
Publisher: Elsevier
ISBN: 148315470X
Category : Science
Languages : en
Pages : 698

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Book Description
Lepidoptera Genetics provides a systematic account of the genetics and karyology of Lepidoptera. Topics covered include the use of biometry in genetic studies; population genetics and polymorphism; the rise of industrial melanism; and the evolution of mimicry. The genetics of Rhopalocera and Heterocera is also discussed. This book is comprised of eight chapters and begins with an overview of Lepidoptera species and their genetics, paying particular attention to color and pigmentation, breeding, and resistance to insecticides, as well as the effect of seasonal variations and the environment on Lepidoptera. The next chapter outlines the tenets of genetics that are of value for Lepidoptera research, including particulate heredity, random assortment, sex-linked inheritance, maternal inheritance, and mosaicism. The reader is methodically introduced to the application of biometry to the study of Lepidoptera genetics; the evolution of mimicry in Lepidoptera; and the known heredity of Rhopalocera and Heterocera. The final chapter examines the karyology of Lepidoptera, focusing on the haploid karyotype, polyploidy, chiasmata frequency, supernumerary chromosomes, and sex chromatin. This monograph will be a useful resource for entomologists, geneticists, and biologists.

The Evolution of Melanism

The Evolution of Melanism PDF Author: Bernard Kettlewell
Publisher: Oxford University Press, USA
ISBN:
Category : Medical
Languages : en
Pages : 498

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Book Description


Mimicry in Butterflies

Mimicry in Butterflies PDF Author: Reginald Crundall Punnett
Publisher:
ISBN:
Category : Butterflies
Languages : en
Pages : 242

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Book Description


Gene Avatars

Gene Avatars PDF Author: Pierre-Henri Gouyon
Publisher: Springer Science & Business Media
ISBN: 0306466163
Category : History
Languages : en
Pages : 291

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Book Description
Evolutionary genetics - the subject of this book - sends the individual crashing. Considered until recently to be the target of selection and the focus of evolution, the individual has been usurped by the gene. The individual is nothing but the gene's avatar."--BOOK JACKET.

Ecology Abstracts

Ecology Abstracts PDF Author:
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 802

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Book Description
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.