Jonathan Davies


Relevant Thesis-Based Degree Programs

Affiliations to Research Centres, Institutes & Clusters


Graduate Student Supervision

Master's Student Supervision

Theses completed in 2010 or later are listed below. Please note that there is a 6-12 month delay to add the latest theses.

Detecting the phylogenetic signal of glacial refugia in a bryodiversity hotspot outside the tropics (2020)

Glacial refugia have likely been important in shaping diversity gradients outside the tropics. However, the biogeographical histories of most species within glacial refugia remain unclear. In this thesis, I examine the geographic range structure and phylogenetic attributes of the mosses of Haida Gwaii, a putative glacial refugium and ‘hotspot’ of moss diversity off the northwest coast of British Columbia. I show that many species have widespread, but disjunct distributions, typically with few close relatives on the islands. I suggest that these features reflect the imprint of glacial history, whereby species within refugia represent isolated populations of previously more widespread species that may have diversified elsewhere. The phylogenetic dispersion of species within high elevation habitats, which best match the climatic regime of the historical glacial refugium, is consistent with the filtering of evolutionarily distinct glacial relicts, and contrasts markedly with the patterns of phylogenetic clustering observed across other habitat types. My study illustrates how the present-day phylogenetic structure of species composition and diversity can reveal the signal of glacial refugia, and help explain why some taxa are more diverse outside of the tropics.

View record

Current Students & Alumni

This is a small sample of students and/or alumni that have been supervised by this researcher. It is not meant as a comprehensive list.

Membership Status

Member of G+PS
View explanation of statuses

Program Affiliations

Academic Unit(s)


If this is your researcher profile you can log in to the Faculty & Staff portal to update your details and provide recruitment preferences.


Sign up for an information session to connect with students, advisors and faculty from across UBC and gain application advice and insight.