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Outbreeding depression is uncommon and predictable

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/9780198783398.003.0007
Subject:
Biology, Biodiversity / Conservation Biology

Crosses between populations within species sometimes result in reduced fitness, especially in F2 and later generations (outbreeding depression). The primary mechanisms causing outbreeding depression ... More


Genetic rescue resulting from gene flow

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

in A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198783411
eISBN:
9780191826337
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783411.003.0005
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

Inbreeding is reduced and genetic diversity enhanced when a small isolated inbred population is crossed to another unrelated population. Crossing can have beneficial or harmful effects on fitness, ... More


Genetic rescue by augmenting gene flow

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/9780198783398.003.0006
Subject:
Biology, Biodiversity / Conservation Biology

Inbreeding is reduced and genetic diversity enhanced when a small isolated inbred population is crossed to another unrelated population. Crossing can have beneficial or harmful effects on fitness, ... More


Hybridization

Fred W. Allendorf, W. Chris Funk, Sally N. Aitken, Margaret Byrne, and Gordon Luikart

in Conservation and the Genomics of Populations

Published in print:
2022
Published Online:
April 2022
ISBN:
9780198856566
eISBN:
9780191889912
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198856566.003.0013
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

Hybridization occurs between species or populations, and can arise from either natural or anthropogenic causes. Hybridization is important in natural evolutionary processes, but can be a harmful ... More


Genetic Management of Fragmented Animal and Plant Populations

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

Published in print:
2017
Published Online:
September 2017
ISBN:
9780198783398
eISBN:
9780191826313
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783398.001.0001
Subject:
Biology, Biodiversity / Conservation Biology

The biological diversity of the planet is being rapidly depleted due to the direct and indirect consequences of human activity. As the size of animal and plant populations decrease and fragmentation ... More


Introduction

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/9780198783398.003.0001
Subject:
Biology, Biodiversity / Conservation Biology

Genetic management of fragmented populations is one of the major, largely unaddressed issues in biodiversity conservation. Many species across the planet have fragmented distributions with small ... More


Introduction

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

in A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198783411
eISBN:
9780191826337
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783411.003.0001
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

Genetic management of fragmented populations is one of the major, largely unaddressed issues in biodiversity conservation. Many species across the planet have fragmented distributions with small ... More


Take home messages

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/9780198783398.003.0015
Subject:
Biology, Biodiversity / Conservation Biology

We recommend augmentation of gene flow for isolated population fragments that are suffering inbreeding and low genetic diversity, provided that proposed population crosses have low risks of ... More


A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations

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

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198783411
eISBN:
9780191826337
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783411.001.0001
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

The biological diversity of the planet is being rapidly depleted due to the direct and indirect consequences of human activity. As the size of wild animal and plant populations decreases and ... 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


Managing gene flow among isolated population fragments

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

in A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations

Published in print:
2019
Published Online:
November 2019
ISBN:
9780198783411
eISBN:
9780191826337
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198783411.003.0008
Subject:
Biology, Biodiversity / Conservation Biology, Evolutionary Biology / Genetics

Even without detailed genetic data, sound genetic management strategies for augmenting gene flow can be instituted by considering population genetics theory, and/or computer simulations. When ... More


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