933 research outputs found
Phylogeographic patterns and migration history of Garry oak (Quercus garryana) in western North America
No full textGarry oak (Quercus garryana Douglas ex. Hook) is a white oak (Quercus sect. Quercus) with a geographic range extending from southwestern BC to south-central California. It is the only native white oak in BC and Washington, and is the northernmost species of the California Floristic Province-Pacific Northwest white oak clade. I used molecular methods to address the following questions: 1) What are the patterns of genetic variation within Garry oak? 2) How do these patterns vary geographically, and how did the spatial distribution of the gene lineages come to occupy its current geographical range? 3) Does Garry oak show evidence of genetic interaction with other white oak species in western North America? 4) Is there morphological or genetic evidence to support the three described varieties of Garry oak?
I obtained samples of Garry oak from 117 localities over its geographic range, as well as samples of two other California white oaks (Q. lobata and Q. douglasii) and a Rocky Mountain species (Q. gambelii). Analyses of DNA sequence data from four plastid DNA regions revealed 24 distinct molecular variants (haplotypes) in Garry oak. These show a strong south-to-north decrease in genetic diversity, consistent with post-glacial northward expansion. Haplotypes present in the northern part of the range provide evidence of two separate northward migrations, only one of which reached the northern range limit of Garry oak in BC. I found that Garry oak shared plastid DNA haplotypes with two other white oak species, indicating that it hybridizes with other oaks in the southern part of its range. The nuclear ribosomal ITS phylogeny showed poor resolution, but both cpDNA and nrDNA may indicate that Q. garryana is more closely related to the white oaks of central North America than was previously thought. My findings also suggest that the three currently recognized varieties of Garry oak (var. garryana, breweri and semota) are not well differentiated genetically, but show morphological variation at the regional level. This study shows the phylogeographic patterns within Q. garryana. In addition, it contributes to conservation efforts in Garry oak ecosystems by indicating regions of high genetic diversity in Garry oak, including genetically unique populations that may be especially worthy of preservation.Graduat
Setting up a nurture group
No full text Garry Freeman presents a short guide to the practicalities and key challenges of setting up a secondary nurture group </jats:p
A wealth of information to apply to lymphoedema management
No full text Garry Cooper, Lecturer in Adult Nursing and Lymphoedema, Birmingham City University, considers how increasing knowledge in the field needs to be translated into effective, patient-focused services </jats:p
Attachment disorders
No full text SEN expert Garry Freeman offers us some practical guidance on strategies to help teachers work with and support young people who have attachment disorders </jats:p
Garry Neill Kennedy: Printed Matter / Imprimés 1971-2009, by Peter Trepanier [book review]
No full textThe article reviews the book "Garry Neill Kennedy: Printed Matter/Imprimés 1971-2009" by Peter Trepanier, part of the "Occasional Papers" book series.Peer reviewedreview article
SEN in Schools: Who should do what?
No full text New legislation, including the SEND Code of Practice 2015, has led to a dramatic overhaul of SEND practice in schools. Two years on, Garry Freeman looks at who should now be doing what to meet the new requirements </jats:p
Make your data C.O.U.N.T.
No full text How can we use our data effectively? Garry Freeman advises on collecting, managing and analysing your school's data so that it is meaningful, relevant and useful for your teachers </jats:p
The participation of women employed in traditionally male dominated occupations including plumbing: 1975–2013
No full textAuthor Garry Cruickshank investigates the gender gap in New Zealand’s plumbing profession. Having established that the proportion of female plumbers is almost unchanged since 1975, Cruickshank compares this information with data gathered from other trades and exposes the widespread nature of this trend across traditionally male dominated industries. The author reflects on what could to be done to alter this situation
Crimson clover
No full textprepared by Dr. Don Ball (Extension Agronomist/Alumni Professor, Auburn University) and Dr. Garry Lacefield (Extension Agronomist/Professor, University of Kentucky).Title from PDF front panel (viewed on February 5, 2020).Covers OCLC #1139336431, OCLC #1139347191Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
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