Products related to Speciation:
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Speciation
Published by Sinauer Associates, an imprint of Oxford University Press. Over the last two decades, the study of speciation has expanded from a modest backwater of evolutionary biology into a large and vigorous discipline.Thus, the literature on speciation, as well as the number of researchers and students working in this area, has grown explosively.Despite these developments, there has been no book-length treatment of speciation in many years.As a result, both the seasoned scholar and the newcomer to evolutionary biology had no ready guide to the recent literature on speciation--a body of work that is enormous, scattered, and increasingly technical.Although several excellent symposium volumes have recently appeared, these collections do not provide a unified, critical, and up-to-date overview of the field.Speciation is designed to fill this gap. Aimed at professional biologists, graduate students, and advanced undergraduates, Speciation covers both plants and animals (the first book on this subject to do so), and deals with all relevant areas of research, including biogeography, field work, systematics, theory, and genetic and molecular studies.It gives special emphasis to topics that are either controversial or the subject of active research, including sympatric speciation, reinforcement, the role of hybridization in speciation, the search for genes causing reproductive isolation, and mounting evidence for the role of natural and sexual selection in the origin of species.The authors do not hesitate to take stands on these and other controversial issues.This critical and scholarly book will be invaluable to researchers in evolutionary biology and is also ideal for a graduate-level course on speciation.
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New Zealand History and Cultural Environment : Early history, Settlement, People and Tradition, Polynesians, Maori culture
New Zealand History and Cultural Environment. Early history, Settlement, People and Tradition, Polynesians, Maori culture.Contemporary New Zealand has a majority of people of European origin, a significant minority of Maori, and smaller numbers of people from Pacific islands and Asia.In the early 21st century, Asians were the fastest-growing demographic group.New Zealand was one of the last sizable land areas suitable for habitation to be populated by human beings.The first settlers were Polynesians who traveled from somewhere in eastern Polynesia, possibly from what is now French Polynesia.They remained isolated in New Zealand until the arrival of European explorers, the first of whom was the Dutch navigator Abel Janszoon Tasman in 1642.Demographers estimate that, by the time British naval captain James Cook visited the country in 1769, the Maori population was not much greater than 100,000.They had no name for themselves but eventually adopted the name Maori (meaning "normal") to distinguish themselves from the Europeans, who, after Cook's voyage, began to arrive with greater frequency
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Olive Nature – Tourism Apartments
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Italian Cuisine : A Cultural History
Italy, the country with a hundred cities and a thousand bell towers, is also the country with a hundred cuisines and a thousand recipes.Its great variety of culinary practices reflects a history long dominated by regionalism and political division, and has led to the common conception of Italian food as a mosaic of regional customs rather than a single tradition.Nonetheless, this magnificent new book demonstrates the development of a distinctive, unified culinary tradition throughout the Italian peninsula. Alberto Capatti and Massimo Montanari uncover a network of culinary customs, food lore, and cooking practices, dating back as far as the Middle Ages, that are identifiably Italian: o Italians used forks 300 years before other Europeans, possibly because they were needed to handle pasta, which is slippery and dangerously hot. o Italians invented the practice of chilling drinks and may have invented ice cream. o Italian culinary practice influenced the rest of Europe to place more emphasis on vegetables and less on meat. o Salad was a distinctive aspect of the Italian meal as early as the sixteenth century. The authors focus on culinary developments in the late medieval, Renaissance, and Baroque eras, aided by a wealth of cookbooks produced throughout the early modern period.They show how Italy's culinary identities emerged over the course of the centuries through an exchange of information and techniques among geographical regions and social classes.Though temporally, spatially, and socially diverse, these cuisines refer to a common experience that can be described as Italian.Thematically organized around key issues in culinary history and beautifully illustrated, Italian Cuisine is a rich history of the ingredients, dishes, techniques, and social customs behind the Italian food we know and love today.
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How does speciation occur in biology?
Speciation occurs in biology when a population of organisms becomes isolated from the rest of its species, leading to genetic differences accumulating over time. These genetic differences can be the result of mutations, natural selection, genetic drift, or other factors. Eventually, the isolated population may become different enough from the original population that they can no longer interbreed and produce viable offspring, leading to the formation of a new species. This process can take thousands or even millions of years to occur.
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How does speciation occur through evolution?
Speciation occurs through evolution when a population of organisms becomes reproductively isolated from the rest of its species, leading to the development of distinct genetic traits and characteristics. This isolation can occur through various mechanisms such as geographic barriers, behavioral differences, or genetic mutations. Over time, these genetic differences accumulate, leading to the formation of a new species that is unable to interbreed with the original population. This process of speciation is a key driver of biodiversity and the development of new species over time.
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What are the selection conditions in speciation?
The selection conditions in speciation refer to the factors that drive the divergence of populations into separate species. These conditions include natural selection, genetic drift, and sexual selection. Natural selection acts on the variation within a population, favoring traits that increase an individual's fitness in a specific environment. Genetic drift, on the other hand, is the random fluctuation of allele frequencies in a population, which can lead to the fixation of different alleles in separate populations. Finally, sexual selection can drive the evolution of traits that enhance an individual's ability to attract mates, leading to reproductive isolation and ultimately speciation.
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How does speciation occur in mistletoe crows?
Mistletoe crows are a type of bird that have been observed to undergo speciation through a process known as ecological speciation. This occurs when different populations of mistletoe crows become adapted to different ecological niches within their habitat, leading to the development of reproductive isolation. For example, mistletoe crows that feed on different species of mistletoe plants may become genetically distinct over time, leading to the formation of new species. Additionally, geographic isolation can also play a role in speciation, as different populations of mistletoe crows may become isolated from one another and evolve independently.
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Exploring Scotland's Islands : A guide to their landscape, history, culture and nature
Explore the enchanting islands of Scotland with this absorbing and beautiful guide. Around the coast of Scotland there are hundreds of islands, from bare, rugged skerries to lush dominions of history and deep-rooted culture.Each offers a unique haven to explore, whether you enjoy sparkling-white sandy beaches, miles of untouched land beneath your feet, nature-spotting among otters, puffins, seals and more, sampling the finest whisky and cheeses, or learning more about Scotland’s history. Exploring Scotland’s Islands describes the main island groups in all their moods, and focuses on what gives these islands such magical and lasting appeal.This book is a glorious celebration in words, maps, illustrations and photographs of some of the most superb scenery in Scotland.Discover why these unique isles draw those lucky enough to find them back to visit whenever they can. Among captivating descriptive text and beautiful photography, Exploring Scotland’s Islands also provides the reader with essential visitor information such as transport links, the most inspiring visitor attractions and sights to see, cafés and restaurants not to be missed, and where you can stay to make your visits all the more special.
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A History of Modern Tourism
Tourism is one of the largest industries in the world, yet leisure travel is more than just economically important.It plays a vital role in defining who we are by helping to place us in space and time.In so doing, it has aesthetic, medical, political, cultural, and social implications.However, it hasn't always been so. Tourism as we know it is a surprisingly modern thing, both a product of modernity and a force helping to shape it.A History of Modern Tourism is the first book to track the origins and evolution of this pursuit from earliest times to the present.From a new understanding of aesthetics to scientific change, from the invention of steam power to the creation of aircraft, from an elite form of education to family car trips to see national 'shrines,' this book offers a sweeping and engaging overview of a fascinating story not yet widely known.
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Jeremiah in History and Tradition
Jeremiah in History and Tradition examines aspects of the Book of Jeremiah from a variety of perspectives including historical, textual, redaction, and feminist criticism, as well as the history of its reception.The book looks afresh at the Book of Jeremiah through the lens of intertextuality and reception history in the broadest sense, exploring Jeremiah in its historical context as well as the later history and interpretation of the text, and also reconsidering aspects of the Book of Jeremiah’s traditions.This volume features essays from a unique assembly of scholars, both seasoned and new.It is divided into two parts: "Jeremiah in History", which explores a variety of readings of Jeremiah from the point of view of classical historical criticism; and "Jeremiah in Tradition", which discusses the portraits and use of both the book and the figure of Jeremiah in extra-biblical traditions.Offering challenging new theories, Jeremiah in History and Tradition is invaluable to scholars and students in the field of Biblical Studies.It is a useful resource for anyone working on the interpretation of the biblical text and the readings of the text of Jeremiah throughout history.
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Irish Aran : History, Tradition, Fashion
Irish Aran knitting is a living tradition with a worldwide reach.Arans communicate warmth, comfort and a sense of home, which people the world over continue to respond to, even though the connection to our rocky outcroppings in the Atlantic Ocean may be long forgotten.Aran grew up in the harsh environment of the Aran Islands where everyday wear consisted of home-spun fabrics and knits.Today Aran survives as part of a rich craft heritage and as high and slow fashion on the catwalks of the world.Vawn Corrigan explores the history, mythology and growth of this iconic design in this beautiful and informative hardback book.
Price: 11.99 £ | Shipping*: 3.99 £
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What is meant by selection conditions in speciation?
Selection conditions in speciation refer to the environmental pressures or factors that drive the evolution of new species. These conditions can include factors such as competition for resources, predation, or changes in habitat. Organisms that are better adapted to these selection conditions are more likely to survive and reproduce, leading to the formation of new species over time. Ultimately, selection conditions play a crucial role in shaping the genetic diversity and evolutionary trajectories of populations undergoing speciation.
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What is a mnemonic for the term speciation?
A mnemonic for the term speciation could be "S.P.E.C.I.E.S." where each letter stands for a different aspect of speciation: - S: Separation of populations - P: Population genetic changes - E: Ecological divergence - C: Courtship and mating behaviors - I: Isolation mechanisms - E: Evolutionary divergence - S: Speciation achieved
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Why does adaptive radiation occur through allopatric speciation processes?
Adaptive radiation occurs through allopatric speciation processes because when a population becomes geographically isolated, different environmental conditions and selective pressures can lead to the evolution of new traits and adaptations. This can result in the rapid diversification of species as they adapt to their specific habitats and niches. Over time, this can lead to the emergence of multiple new species with distinct characteristics, allowing them to occupy different ecological roles and reduce competition among them.
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What is the difference between allopatric and sympatric speciation?
Allopatric speciation occurs when a population is separated by a physical barrier, such as a river or mountain range, leading to the evolution of two separate species. In contrast, sympatric speciation occurs when a new species evolves within the same geographic area as its parent species, without any physical barriers. Sympatric speciation often involves factors such as ecological, behavioral, or genetic differences driving the formation of a new species within the same habitat.
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