About

Project Goal & Objectives

The goal of this project is to investigate ecosystem productivity (the rate of vegetation growth) and phenology (the timing of vegetation growth through the seasons) across the entire range of the Bathurst caribou herd over the past two decades. Areas of increased vegetation productivity are described as “greening”, while “browning” describes areas where productivity has decreased. We seek to identify linkages between these changes and significant shifts in herd distribution and habitat use during the same period.

The project is rooted in three basic research/monitoring questions and objectives:

  1. Question: How has vegetation productivity and phenology changed across the Bathurst caribou herd’s range over the last two decades? Objective: Map annual changes in vegetation productivity and phenology across the entire range of the Bathurst caribou herd using satellite imagery obtained from NASA, so as to identify where the most significant changes have occurred.
  2. Question: To what extent have increases or decreases in woody plant growth and abundance contributed to greening and browning in undisturbed portions of the herd’s range? Objective: Gather data on the growth, establishment, and mortality of trees and shrubs by establishing vegetation plots and conducting tree/shrub ring sampling at several of the most significant locations of change.
  3. Question: How have annual and seasonal distribution and habitat use of the Bathurst caribou herd changed during the monitoring period and what is the relationship between these changes and the mapped changes in vegetation productivity and phenology within their range? Objective: Use available satellite and GPS collar data to map seasonal range of the herd on an annual basis and analyze changes in timing and extent of range use in relation to the observed vegetation change.

Team Members


Ryan Danby

Ryan is the project’s principle investigator, overseeing all science and reporting components. Ryan has conducted scientific research in Northern Canada and Alaska for the last twenty years, with a focus on understanding the drivers and consequences of ecosystem change and their implications for conservation and resource management, particularly at large spatial scales. Ryan is acting director of the School of Environmental Studies and associate professor in the Department of Geography and Planning at Queen’s University (Kingston, Ontario) where he teaches courses in landscape ecology, biogeography, wildlife conservation, and ecosystem management.

Greg King

Greg King

Greg is an assistant professor of environmental science at the University of Alberta Augustana located in Camrose, Alberta. He began his research career working on ecology and biogeography projects in northern Canada. After a brief sojourn to the alpine environments of Switzerland for his PhD, he returned to northern Canada for research on alpine and latitudinal treelines. Greg will be using tree and shrub rings to provide greater understanding of landscape change in the Bathurst caribou range and potential implications for habitat and land-use.

Carolyn Bonta

Carolyn Bonta

Carolyn is a conservation biologist whose career has spanned environmental consulting, public outreach, and protected areas planning across eastern Ontario. Long intrigued by northern and arctic ecosystems, she is particularly interested in how wildlife and vegetation have adapted to their present geographical distribution. As part of her Ph.D. research at Queen’s University, Carolyn will be investigating historical distribution of treeline vegetation and how woody species are responding to current environmental conditions.


Robin Mennell

Robin is a first-year master’s student at Queen’s University who is researching whether the Bathhurst caribou herd is changing their migration routes as a result of climatic factors. He was born and raised in Yukon and as a result is passionate about issues affecting the North. He is especially fascinated with northern ecosystems and how they will be affected by climate change.


Emily Grishaber

A 4th year honours Environmental Biology student at Queen’s University, Emily is working as a research assistant to the 2018 NWT project. She hopes to pursue a future of environmental research in relation to the changing climate, and looks forward to contributing to the scientific community in the years to come.


Joel Koop

Joel is a professional photographer and Environmental Studies and Outdoor Education student at University of Alberta Augustana. This summer he is working as a research assistant. In addition to helping with the research, he is using photography, videography, and design to clearly communicate the scientific work we’re doing.


Danielle Lebre

Danielle is a fourth year Environmental Science student at Queen’s University and will be completing her Honours project with the team under the supervision of Dr. Ryan Danby. She is interested in the effects that rising temperatures have on northern ecosystems and hopes to pursue future research pertaining to environmental adaptation to climate change.