Author: Peter R. Grant
Publisher: Princeton University Press
ISBN: 0691149992
Category : Nature
Languages : en
Pages : 272
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Book Description
Trace the evolutionary history of fourteen different species of finches on the Galapagos Islands that were studied by Charles Darwin.
Author: Peter R. Grant
Publisher: Princeton University Press
ISBN: 1400837944
Category : Science
Languages : en
Pages : 274
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Book Description
Charles Darwin's experiences in the Galápagos Islands in 1835 helped to guide his thoughts toward a revolutionary theory: that species were not fixed but diversified from their ancestors over many generations, and that the driving mechanism of evolutionary change was natural selection. In this concise, accessible book, Peter and Rosemary Grant explain what we have learned about the origin and evolution of new species through the study of the finches made famous by that great scientist: Darwin's finches. Drawing upon their unique observations of finch evolution over a thirty-four-year period, the Grants trace the evolutionary history of fourteen different species from a shared ancestor three million years ago. They show how repeated cycles of speciation involved adaptive change through natural selection on beak size and shape, and divergence in songs. They explain other factors that drive finch evolution, including geographical isolation, which has kept the Galápagos relatively free of competitors and predators; climate change and an increase in the number of islands over the last three million years, which enhanced opportunities for speciation; and flexibility in the early learning of feeding skills, which helped species to exploit new food resources. Throughout, the Grants show how the laboratory tools of developmental biology and molecular genetics can be combined with observations and experiments on birds in the field to gain deeper insights into why the world is so biologically rich and diverse. Written by two preeminent evolutionary biologists, How and Why Species Multiply helps to answer fundamental questions about evolution--in the Galápagos and throughout the world.
Author: Peter R. Grant
Publisher: Princeton University Press
ISBN: 0691263221
Category : Nature
Languages : en
Pages : 464
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Book Description
"A new, revised edition of Peter and Rosemary Grant's synthesis of their decades of research on Daphne Island"--
Author: David Pfennig
Publisher: Univ of California Press
ISBN: 0520954041
Category : Nature
Languages : en
Pages : 319
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Book Description
Evolutionary biology has long sought to explain how new traits and new species arise. Darwin maintained that competition is key to understanding this biodiversity and held that selection acting to minimize competition causes competitors to become increasingly different, thereby promoting new traits and new species. Despite Darwin’s emphasis, competition’s role in diversification remains controversial and largely underappreciated. In their synthetic and provocative book, evolutionary ecologists David and Karin Pfennig explore competition's role in generating and maintaining biodiversity. The authors discuss how selection can lessen resource competition or costly reproductive interactions by promoting trait evolution through a process known as character displacement. They further describe character displacement’s underlying genetic and developmental mechanisms. The authors then consider character displacement’s myriad downstream effects, ranging from shaping ecological communities to promoting new traits and new species and even fueling large-scale evolutionary trends. Drawing on numerous studies from natural populations, and written for a broad audience, Evolution’s Wedge seeks to inspire future research into character displacement’s many implications for ecology and evolution.
Author: John Tyler Bonner
Publisher: Princeton University Press
ISBN: 1400846420
Category : Science
Languages : en
Pages : 149
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Book Description
The important role that randomness plays in evolutionary change John Tyler Bonner, one of our most distinguished and insightful biologists, here challenges a central tenet of evolutionary biology. In this concise, elegantly written book, he makes the bold and provocative claim that some biological diversity may be explained by something other than natural selection. With his customary wit and accessible style, Bonner makes an argument for the underappreciated role that randomness—or chance—plays in evolution. Due to the tremendous and enduring influence of Darwin's natural selection, the importance of randomness has been to some extent overshadowed. Bonner shows how the effects of randomness differ for organisms of different sizes, and how the smaller an organism is, the more likely it is that morphological differences will be random and selection may not be involved to any degree. He traces the increase in size and complexity of organisms over geological time, and looks at the varying significance of randomness at different size levels, from microorganisms to large mammals. Bonner also discusses how sexual cycles vary depending on size and complexity, and how the trend away from randomness in higher forms has even been reversed in some social organisms. Certain to provoke lively discussion, Randomness in Evolution is a book that may fundamentally change our understanding of evolution and the history of life.
Author: Dolph Schluter
Publisher: OUP Oxford
ISBN: 0191588326
Category :
Languages : en
Pages : 302
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Book Description
Adaptive radiation is the evolution of diversity within a rapidly multiplying lineage. It can cause a single ancestral species to differentiate into an impressively vast array of species inhabiting a variety of environments. Much of life's diversity has arisen during adaptive radiations. Some of the most famous recent examples include the East African cichlid fishes, the Hawaiian silverswords, and of course, Darwin's Gal--aacute--;pagos finches,. This book evaluates the causes of adaptive radiation. It focuses on the 'ecological' theory of adaptive radiation, a body of ideas that began with Darwin and was developed through the early part of the 20th Century. This theory proposes that phenotypic divergence and speciation in adaptive radiation are caused ultimately by divergent natural selection arising from differences in environment and competition between species. In The Ecology of Adaptive Radiation the author re-evaluates the ecological theory, along with its most significant extensions and challenges, in the light of all the recent evidence. This important book is the first full exploration of the causes of adaptive radiation to be published for decades, written by one of the world's best young evolutionary biologists.
Author: Teiji Sota
Publisher: Springer
ISBN: 9789811667015
Category : Science
Languages : en
Pages : 0
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Book Description
This book presents the whole picture of the ecological and evolutionary study on the ground beetle group, the subgenus Ohomopterus of the genus Carabus, endemic to Japan. This flightless beetle group consists of many geographic races. They show divergence in key traits for reproductive isolation—body size and genital morphology, which leads to coexistence of two or more species. This beetle group provides an important material to study how a lineage of organisms diversify and form multi-species assemblage, and thereby multiply their species richness. The book introduces novel genomic approaches to resolve questions about evolution of Ohomopterus. The readers will find that this story of evolution in Carabus beetles revealed by recent approaches is much different from what was told in previous literature. Exploring different cases across a wide range of lineages is important in constructing a synthetic theory of species radiation and richness, including speciation and species coexistence. This study on Ohomopterus beetles contributes to the ongoing discussion to understand how and why species multiply and how species richness increases in one area of our planet.
Author: Jonathan Weiner
Publisher: Vintage
ISBN: 1101872969
Category : Science
Languages : en
Pages : 354
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Book Description
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) • With a new preface “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.
Author: Thomas W. Polger
Publisher: Oxford University Press
ISBN: 0198732899
Category : Family & Relationships
Languages : en
Pages : 273
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Book Description
Thomas W. Polger and Lawrence A. Shapiro offer the first full investigation of multiple realization--the idea that minds can be realized in ways other than the human brain. They cast doubt on the hypothesis and offer an alternative framework for understanding explanations in the cognitive sciences, and in chemistry, biology, and related fields.
Author: Eric Funkhouser
Publisher:
ISBN: 0198713304
Category : Philosophy
Languages : en
Pages : 193
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Book Description
Eric Funkhouser uncovers a logical structure that is common to many, if not all, classificatory systems or taxonomies. Every conceptual scheme--including the sciences, mathematics, and ethics--classifies things into kinds. Given their ubiquity across theoretical contexts, we would benefit from understanding the nature of such kinds. Significantly, most conceptual schemes posit kinds that vary in their degree of specificity. Species-genus taxonomiesprovide us with familiar examples, with the species classification being more specific than the genus classification. This book instead focuses on adjectival kinds--classifications picked out by kind-terms like'mass', 'shape', or 'belief', to give but a few examples. One of its fundamental claims is that studying the determination relation provides deep insight into the essences of adjectival kinds and their instances (properties). The determination relation is found to contain two components, which are employed to structure kinds at the same level of abstraction into property spaces. In turn, these property space models lead to a theory for individuating properties, which has profound consequenceswhen it comes to reduction, autonomy, and causation. Funkhouser argues that determination and realization are mutually exclusive relations. He defends the claim that multiple realizability entailsvarious senses of autonomy from various reductionist challenges. These theories of determination and realization ultimately provide general standards for establishing the autonomy of the special sciences or, conversely, their reduction.
