Anna Crofts


Northern EDGE Biogeography, SN 1031


Dr. Carissa Brown

Previous Education

BSc with Distinction- Biology (major), Geography (minor), University of British Columbia (2015)

Title of Project


Research Project Description

Climate warming is projected to alter species geographical distributions, as species track the climatic niche they have evolved to, moving upslope or to greater latitudes. Treelines, the ecotone where forests transition to non-forested ecosystems, are important systems as they occur at the edge of trees climatic tolerance. To date, there has been no clear global response of tree species to warming, suggesting that forest distribution may be limited by non-climatic factors.
My research is focused on identifying early-life stage bottlenecks to black spruce (Picea mariana) and tamarack larch (Larix laricina) altitudinal treeline recruitment, through experimental manipulation. I am particularly interested on identifying the role plant-plant interactions play, hoping to identify if inter and intraspecific interactions facilitate early germinant and seedling survival at treeline.


Teaching Assistant, Fall 2016, Physical Geography: The Global Perspective (Geog 2102)

Research Interests

• Species Range Dynamics
• Community Ecology
• Plant-climate feedbacks


Department of Geography

230 Elizabeth Ave, St. John's, NL, CANADA, A1B 3X9

Postal Address: P.O. Box 4200, St. John's, NL, CANADA, A1C 5S7

Tel: (709) 864-8000