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The horizontal genome

Antonio Fontdevila

in The Dynamic Genome: A Darwinian Approach

Published in print:
2011
Published Online:
September 2011
ISBN:
9780199541379
eISBN:
9780191728532
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199541379.003.0004
Subject:
Biology, Evolutionary Biology / Genetics, Developmental Biology

This chapter reports data, mainly from comparative genomics, which confirm a long-suspected high rate of interspecies gene flow due to hybridisation. It also reports the present interest in hybrids ... More


A form of reproductive isolation

Patrik Nosil

in Ecological Speciation

Published in print:
2012
Published Online:
May 2015
ISBN:
9780199587100
eISBN:
9780191810107
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199587100.003.0004
Subject:
Biology, Evolutionary Biology / Genetics

This chapter examines case studies of various types of reproductive isolation during ecological speciation. It considers the contributions of individual reproductive barriers to levels of total ... More


Evolutionary Ecology: The Trinidadian Guppy

Anne E. Magurran

Published in print:
2005
Published Online:
September 2007
ISBN:
9780198527855
eISBN:
9780191713576
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198527855.001.0001
Subject:
Biology, Evolutionary Biology / Genetics

This book explores the Trinidadian guppy's unique contributions to evolutionary ecology. Ever since Caryl Haskins — working in the 1940s and 1950s — described guppy populations as a natural ... More


Comparative Analyses of Ecological Speciation

Daniel J. Funk and Patrik Nosil

in Specialization, Speciation, and Radiation: The Evolutionary Biology of Herbivorous Insects

Published in print:
2008
Published Online:
March 2012
ISBN:
9780520251328
eISBN:
9780520933828
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520251328.003.0009
Subject:
Biology, Evolutionary Biology / Genetics

Although the contribution of natural selection to speciation was not an explicit empirical focus of most of the twentieth century, it was often assumed to be an important factor in the evolutionary ... More


Ecological Speciation

Patrik Nosil

Published in print:
2012
Published Online:
May 2015
ISBN:
9780199587100
eISBN:
9780191810107
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199587100.001.0001
Subject:
Biology, Evolutionary Biology / Genetics

The origin of biological diversity, via the formation of new species, can be inextricably linked to adaptation to the ecological environment. Specifically, ecological processes are central to the ... More


Ecological Speciation

Andrew P. Hendry

in Eco-evolutionary Dynamics

Published in print:
2016
Published Online:
January 2018
ISBN:
9780691145433
eISBN:
9781400883080
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691145433.003.0006
Subject:
Biology, Ecology

This chapter examines how populations in different environments can fall at different stages along a continuum of progress toward ecological speciation. It traces how variation can be used to infer ... More


Speciation

David W. Pfennig and Karin S. Pfennig

in Evolution's Wedge: Competition and the Origins of Diversity

Published in print:
2012
Published Online:
May 2013
ISBN:
9780520274181
eISBN:
9780520954045
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520274181.003.0008
Subject:
Biology, Biodiversity / Conservation Biology

New species form during an extended process, which often begins when populations become physically separated and ends when they come into secondary contact and possess or subsequently evolve barriers ... More


What are species?

Timothy G. Barraclough

in The Evolutionary Biology of Species

Published in print:
2019
Published Online:
August 2019
ISBN:
9780198749745
eISBN:
9780191814020
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198749745.003.0002
Subject:
Biology, Evolutionary Biology / Genetics, Biodiversity / Conservation Biology

This chapter looks at the ideas underpinning the definition of species. After outlining a standard model of species applicable to sexual organisms, it looks more broadly at the multiple forces that ... More


Genetic exchange, reproductive barriers, and the mosaic genome

Michael L. Arnold

in Divergence with Genetic Exchange

Published in print:
2015
Published Online:
November 2015
ISBN:
9780198726029
eISBN:
9780191792960
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198726029.003.0004
Subject:
Biology, Evolutionary Biology / Genetics

One of the main messages of this text is that genetic exchange occurs throughout viral, prokaryotic and eukaryotic complexes, and that these exchange events can lead to evolutionary novelty via the ... More


The speciation continuum: what factors affect how far speciation proceeds?

Patrik Nosil

in Ecological Speciation

Published in print:
2012
Published Online:
May 2015
ISBN:
9780199587100
eISBN:
9780191810107
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199587100.003.0008
Subject:
Biology, Evolutionary Biology / Genetics

This chapter concentrates on the degree to which ecological speciation unfolds once it is initiated. Its central concept is that speciation is often an extended and continuous process. It details on ... More


New Species for the Community

Mark A. McPeek

in Evolutionary Community Ecology

Published in print:
2017
Published Online:
May 2018
ISBN:
9780691088778
eISBN:
9781400888214
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691088778.003.0004
Subject:
Biology, Evolutionary Biology / Genetics

This chapter considers the main processes that operate at the regional and biogeographic scales to ultimately shape local community structure—namely, speciation and biogeographic mixing of taxa. It ... More


Speciation and Geographic Differentiation

Jonathan B. Losos

in Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520255913
eISBN:
9780520943735
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520255913.003.0014
Subject:
Biology, Evolutionary Biology / Genetics

This chapter discusses the role of speciation in adaptive radiation of anoles and then examines the geographical context of anole speciation, beginning by discussing the mechanistic approaches to the ... More


Why are there species?: Arenas of recombination and selection

Timothy G. Barraclough

in The Evolutionary Biology of Species

Published in print:
2019
Published Online:
August 2019
ISBN:
9780198749745
eISBN:
9780191814020
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198749745.003.0004
Subject:
Biology, Evolutionary Biology / Genetics, Biodiversity / Conservation Biology

This chapter continues the discussion of evolutionary methods of species delimitation by exploring how multilocus methods can be used to delimit reproductively isolated groups, and how genetic and ... More


Evolutionary Branching in a Classical Model for Sympatric Speciation

Michael Doebeli

in Adaptive Diversification (MPB-48)

Published in print:
2011
Published Online:
October 2017
ISBN:
9780691128931
eISBN:
9781400838936
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691128931.003.0002
Subject:
Biology, Biodiversity / Conservation Biology

This chapter begins by considering the Maynard Smith model. Much of this work concentrated on the genetic mechanisms for assortative mating and reproductive isolation, based on the assumption that ... More


Adaptive Diversification Due to Resource Competition in Sexual Models

Michael Doebeli

in Adaptive Diversification (MPB-48)

Published in print:
2011
Published Online:
October 2017
ISBN:
9780691128931
eISBN:
9781400838936
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691128931.003.0004
Subject:
Biology, Biodiversity / Conservation Biology

This chapter examines evolutionary branching in sexual populations. As sexual populations converge to what would be a branching point in clonal models, splitting obviously becomes a problem, because ... More


Sympatric Speciation: Norm or Exception?

Douglas J. Futuyma

in Specialization, Speciation, and Radiation: The Evolutionary Biology of Herbivorous Insects

Published in print:
2008
Published Online:
March 2012
ISBN:
9780520251328
eISBN:
9780520933828
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520251328.003.0010
Subject:
Biology, Evolutionary Biology / Genetics

Host-specific herbivorous insects have inspired speculation about sympatric speciation at least since the 1860s, when the now-famous host races of the apple maggot were described for the first time. ... More


A source of divergent selection

Patrik Nosil

in Ecological Speciation

Published in print:
2012
Published Online:
May 2015
ISBN:
9780199587100
eISBN:
9780191810107
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199587100.003.0003
Subject:
Biology, Evolutionary Biology / Genetics

This chapter studies the three commonly recognized sources of divergent selection. These include the differences between environments, interactions between populations, and ecologically based sexual ... More


Modern Debates

John S. Wilkins

in Species: A History of the Idea

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520260856
eISBN:
9780520945074
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520260856.003.0008
Subject:
Biology, Ecology

This chapter discusses the modern views of the species concepts. It presents several classes of fundamental concepts such as reproductive isolation concepts, evolutionary concepts, phylogenetic ... More


Advertisements 2: Olfactory Signals

Pat Willmer

in Pollination and Floral Ecology

Published in print:
2011
Published Online:
October 2017
ISBN:
9780691128610
eISBN:
9781400838943
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691128610.003.0006
Subject:
Biology, Ecology

This chapter examines how flowers use olfactory signals to attract pollinators. Floral scents mostly result from the production of small amounts of simple volatile organic compounds. The molecular ... More


Meet the Anoles!

Jonathan B. Losos

in Lizards in an Evolutionary Tree: Ecology and Adaptive Radiation of Anoles

Published in print:
2009
Published Online:
March 2012
ISBN:
9780520255913
eISBN:
9780520943735
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520255913.003.0002
Subject:
Biology, Evolutionary Biology / Genetics

This chapter introduces anoles, describing their diagnostic characteristics and geographic distribution, as well as species diversity. Anoles are characterized by the possession of a dewlap and of ... More


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