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Genetically Modified Planet: Environmental Impacts of Genetically Engineered Plants

C. Neal Stewart

Published in print:
2004
Published Online:
September 2007
ISBN:
9780195157451
eISBN:
9780199790388
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195157451.001.0001
Subject:
Biology, Biotechnology

From years prior to the release of the first commercial transgenic crop in 1995 to the present, many concerned activists, regulators, and scientists have questioned how genetic engineering might ... More


Bee Pollination in Agricultural Ecosystems

Rosalind James and Theresa L. Pitts-Singer (eds)

Published in print:
2008
Published Online:
September 2008
ISBN:
9780195316957
eISBN:
9780199871575
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195316957.001.0001
Subject:
Biology, Animal Biology, Plant Sciences and Forestry

Bees play a vital role as pollinators for many agricultural crops. This book discusses the interplay between bees, agriculture, and the environment. Although honey bees are well recognized as ... More


Estimating the Potential for Bee-Mediated Gene Flow in Genetically Modified Crops

James E. Cresswell

in Bee Pollination in Agricultural Ecosystems

Published in print:
2008
Published Online:
September 2008
ISBN:
9780195316957
eISBN:
9780199871575
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195316957.003.0011
Subject:
Biology, Animal Biology, Plant Sciences and Forestry

This chapter considers methods for quantifying the importance of bees in pollinating a crop and in producing field-to-field cross-pollination and gene flow. Simple theoretical models are presented ... More


Gene Flow

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/9780691145433.003.0005
Subject:
Biology, Ecology

This chapter looks at empirical methods for quantifying gene flow and inferring its role in adaptive divergence. An important point made therein is that gene flow can sometimes aid adaptation, such ... More


Landscape Genetics: Landscape Effects on Gene Flow and Population Genetic Structure

Kimberly A. With

in Essentials of Landscape Ecology

Published in print:
2019
Published Online:
August 2019
ISBN:
9780198838388
eISBN:
9780191874697
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198838388.003.0009
Subject:
Biology, Ecology, Biodiversity / Conservation Biology

Landscape genetics explores how the microevolutionary processes of gene flow, genetic drift, and natural selection interact with environmental heterogeneity to shape population genetic structure. ... More


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


Contamination: Transgenes in Mexican Corn?

C. Neal Stewart

in Genetically Modified Planet: Environmental Impacts of Genetically Engineered Plants

Published in print:
2004
Published Online:
September 2007
ISBN:
9780195157451
eISBN:
9780199790388
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195157451.003.0005
Subject:
Biology, Biotechnology

In 2001, a group of researchers at the University of California-Berkeley published a report claiming that transgenes had moved from commercial corn to landrace corn in Oaxaca, Mexico. Transgenic corn ... More


Genetic diversity in changing environments

Jacob Höglund

in Evolutionary Conservation Genetics

Published in print:
2009
Published Online:
May 2009
ISBN:
9780199214211
eISBN:
9780191706660
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199214211.003.0004
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

This chapter reviews the genetic consequences of environmental change. These changes are often so rapid that contemporary populations are often not found in genetic equilibrium. Furthermore, ... More


The geography of ecological speciation

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/9780199587100.003.0006
Subject:
Biology, Evolutionary Biology / Genetics

This chapter focuses on the geographic component of ecological speciation. It begins by giving different definitions of the geography of speciation and then studies the effects of geography on the ... More


Mitonuclear speciation

Geoffrey E. Hill

in Mitonuclear Ecology

Published in print:
2019
Published Online:
June 2019
ISBN:
9780198818250
eISBN:
9780191859465
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198818250.003.0007
Subject:
Biology, Ecology, Evolutionary Biology / Genetics

Current models of speciation assume that species arise when nuclear genotypes diverge following the disruption of gene flow between populations. This chapter explores the idea that speciation is ... More


Living with Other Flowers: Competition and Pollination Ecology

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/9780691128610.003.0022
Subject:
Biology, Ecology

This chapter examines competition in the context of pollination ecology. Competition is typically treated from the perspective of the plants, but it is also likely to occur among and between the ... 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


Who Were the Neanderthals?

Norman A. Johnson

in Darwinian Detectives: Revealing the Natural History of Genes and Genomes

Published in print:
2007
Published Online:
September 2007
ISBN:
9780195306750
eISBN:
9780199790203
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195306750.003.0007
Subject:
Biology, Evolutionary Biology / Genetics

How close were the Neanderthals to modern humans? Are Neanderthal genes in our gene pool? This chapter explores recent studies analyzing the DNA from Neanderthal fossils to provide a framework to ... More


Colony Structure

Florian M. Steiner, Ross H. Crozier, and Birgit C. Schlick‐Steiner

in Ant Ecology

Published in print:
2009
Published Online:
February 2010
ISBN:
9780199544639
eISBN:
9780191720192
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199544639.003.0010
Subject:
Biology, Ecology, Animal Biology

Ant colony structure is a colony's caste, demographic, genealogical, and spatial make‐up. Characters of colony structure include the number and identity of reproductives, worker task allocation, and ... More


Humans and associated lineages

Michael L. Arnold

in Evolution through Genetic Exchange

Published in print:
2007
Published Online:
April 2010
ISBN:
9780199229031
eISBN:
9780191728266
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199229031.003.0009
Subject:
Biology, Evolutionary Biology / Genetics

This chapter reviews findings relating to the effect of genetic exchange on the evolution of the human lineage and lineages of organisms with which we interact (e.g. disease vectors, food sources). ... More


Population structure

Dale H. Clayton, Sarah E. Bush, and Kevin P. Johnson

in Coevolution of Life on Hosts: Integrating Ecology and History

Published in print:
2015
Published Online:
May 2016
ISBN:
9780226302133
eISBN:
9780226302300
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226302300.003.0008
Subject:
Biology, Evolutionary Biology / Genetics

Populations are seldom uniform; they tend to be subdivided, with gene frequencies unevenly distributed across landscapes. In this chapter, determinants of population structure in parasites are first ... More


Emergent properties

Michael L. Arnold

in Evolution through Genetic Exchange

Published in print:
2007
Published Online:
April 2010
ISBN:
9780199229031
eISBN:
9780191728266
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199229031.003.0010
Subject:
Biology, Evolutionary Biology / Genetics

This chapter begins by reflecting upon the major theme of this book: that genetic exchange is pervasive across all biological lineages. It discusses the implications of this regarding the ... More


Managing gene flow among isolated population fragments. I. Limited information

Richard Frankham, Jonathan D. Ballou, Katherine Ralls, Mark D. B. Eldridge, Michele R. Dudash, Charles B. Fenster, Robert C. Lacy, and Paul Sunnucks

in Genetic Management of Fragmented Animal and Plant Populations

Published in print:
2017
Published Online:
September 2017
ISBN:
9780198783398
eISBN:
9780191826313
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783398.003.0012
Subject:
Biology, Biodiversity / Conservation Biology

When the decision is made to augment gene flow into an isolated population, managers must decide how to augment gene flow, when to start, from where to take the individuals or gametes to be added, ... More


Migration in Anthropological Genetics

Alan G. Fix

in Rethinking Anthropological Perspectives on Migration

Published in print:
2011
Published Online:
January 2012
ISBN:
9780813036076
eISBN:
9780813041780
Item type:
chapter
Publisher:
University Press of Florida
DOI:
10.5744/florida/9780813036076.003.0013
Subject:
Society and Culture, Social Groups

Migration and its consequence, gene flow, have been a major force affecting the frequency, spatial pattern, and spread of genes in human populations. Methodologies to document or infer local and ... More


Species boundaries and contemporary evolution

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/9780198749745.003.0007
Subject:
Biology, Evolutionary Biology / Genetics, Biodiversity / Conservation Biology

Much of the evolutionary study of species is retrospective and reconstructs the past processes leading to extant diversity. Yet the nature of species and extent of diversity has profound implications ... More


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