Natural hybridization in the context of Ocbil theory

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ocbil theory was developed to better understand the origins, ecology and conservation of biodiversity and cultural diversity on the Earth's oldest, climatically buffered, most infertile landscapes (Ocbils), which are especially prominent in the Southwest Australian and Greater Cape Floristic Regions. Natural hybridization involves the mating of individuals from distinguishable populations, usually of distinct taxa, and often involves the production of later-generation derivatives from such matings. Drawing upon Edgar Anderson's Hybridized Habitat hypothesis and Arnold's modern development of Anderson's and Stebbins’ ‘genetic exchange in fluctuating environments’ thesis, it is predicted that natural hybridization, introgression and hybrid speciation will be reduced in Ocbils and more common in Yodfels (young, often-disturbed, fertile landscapes) globally – the Reduced Hybridization Hypothesis for Ocbils. Evidence supporting this hypothesis is explored in herbarium and field data on hybridization rates and hybrid speciation in southwest Australia, contrasted with reviews of hybridization rates in other global regions. Further research is recommended and independent tests in South Africa and other countries with Ocbils would be instructive. The solitary Ocbil dwelling Eucalyptus × graniticola Hopper is described in supplementary material to exemplify the Reduced Hybridization Hypothesis.

Original languageEnglish
Pages (from-to)284-289
Number of pages6
JournalSouth African Journal of Botany
Volume118
DOIs
Publication statusPublished - 1 Sep 2018

Fingerprint

hybridization
multicultural diversity
herbaria
Eucalyptus
introgression
South Africa
biodiversity
ecology
habitats
testing

Cite this

@article{0d661a15ac16476488816f478f6d66d0,
title = "Natural hybridization in the context of Ocbil theory",
abstract = "Ocbil theory was developed to better understand the origins, ecology and conservation of biodiversity and cultural diversity on the Earth's oldest, climatically buffered, most infertile landscapes (Ocbils), which are especially prominent in the Southwest Australian and Greater Cape Floristic Regions. Natural hybridization involves the mating of individuals from distinguishable populations, usually of distinct taxa, and often involves the production of later-generation derivatives from such matings. Drawing upon Edgar Anderson's Hybridized Habitat hypothesis and Arnold's modern development of Anderson's and Stebbins’ ‘genetic exchange in fluctuating environments’ thesis, it is predicted that natural hybridization, introgression and hybrid speciation will be reduced in Ocbils and more common in Yodfels (young, often-disturbed, fertile landscapes) globally – the Reduced Hybridization Hypothesis for Ocbils. Evidence supporting this hypothesis is explored in herbarium and field data on hybridization rates and hybrid speciation in southwest Australia, contrasted with reviews of hybridization rates in other global regions. Further research is recommended and independent tests in South Africa and other countries with Ocbils would be instructive. The solitary Ocbil dwelling Eucalyptus × graniticola Hopper is described in supplementary material to exemplify the Reduced Hybridization Hypothesis.",
keywords = "Eucalyptus × graniticola, GCFR, Hybridization, Ocbil, Reduced Hybridization Hypothesis, SWAFR, Yodfel",
author = "Hopper, {S. D.}",
year = "2018",
month = "9",
day = "1",
doi = "10.1016/j.sajb.2018.02.410",
language = "English",
volume = "118",
pages = "284--289",
journal = "South African Journal of Botany",
issn = "0254-6299",
publisher = "Pergamon",

}

Natural hybridization in the context of Ocbil theory. / Hopper, S. D.

In: South African Journal of Botany, Vol. 118, 01.09.2018, p. 284-289.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Natural hybridization in the context of Ocbil theory

AU - Hopper, S. D.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Ocbil theory was developed to better understand the origins, ecology and conservation of biodiversity and cultural diversity on the Earth's oldest, climatically buffered, most infertile landscapes (Ocbils), which are especially prominent in the Southwest Australian and Greater Cape Floristic Regions. Natural hybridization involves the mating of individuals from distinguishable populations, usually of distinct taxa, and often involves the production of later-generation derivatives from such matings. Drawing upon Edgar Anderson's Hybridized Habitat hypothesis and Arnold's modern development of Anderson's and Stebbins’ ‘genetic exchange in fluctuating environments’ thesis, it is predicted that natural hybridization, introgression and hybrid speciation will be reduced in Ocbils and more common in Yodfels (young, often-disturbed, fertile landscapes) globally – the Reduced Hybridization Hypothesis for Ocbils. Evidence supporting this hypothesis is explored in herbarium and field data on hybridization rates and hybrid speciation in southwest Australia, contrasted with reviews of hybridization rates in other global regions. Further research is recommended and independent tests in South Africa and other countries with Ocbils would be instructive. The solitary Ocbil dwelling Eucalyptus × graniticola Hopper is described in supplementary material to exemplify the Reduced Hybridization Hypothesis.

AB - Ocbil theory was developed to better understand the origins, ecology and conservation of biodiversity and cultural diversity on the Earth's oldest, climatically buffered, most infertile landscapes (Ocbils), which are especially prominent in the Southwest Australian and Greater Cape Floristic Regions. Natural hybridization involves the mating of individuals from distinguishable populations, usually of distinct taxa, and often involves the production of later-generation derivatives from such matings. Drawing upon Edgar Anderson's Hybridized Habitat hypothesis and Arnold's modern development of Anderson's and Stebbins’ ‘genetic exchange in fluctuating environments’ thesis, it is predicted that natural hybridization, introgression and hybrid speciation will be reduced in Ocbils and more common in Yodfels (young, often-disturbed, fertile landscapes) globally – the Reduced Hybridization Hypothesis for Ocbils. Evidence supporting this hypothesis is explored in herbarium and field data on hybridization rates and hybrid speciation in southwest Australia, contrasted with reviews of hybridization rates in other global regions. Further research is recommended and independent tests in South Africa and other countries with Ocbils would be instructive. The solitary Ocbil dwelling Eucalyptus × graniticola Hopper is described in supplementary material to exemplify the Reduced Hybridization Hypothesis.

KW - Eucalyptus × graniticola

KW - GCFR

KW - Hybridization

KW - Ocbil

KW - Reduced Hybridization Hypothesis

KW - SWAFR

KW - Yodfel

UR - http://www.scopus.com/inward/record.url?scp=85043519882&partnerID=8YFLogxK

U2 - 10.1016/j.sajb.2018.02.410

DO - 10.1016/j.sajb.2018.02.410

M3 - Article

VL - 118

SP - 284

EP - 289

JO - South African Journal of Botany

JF - South African Journal of Botany

SN - 0254-6299

ER -