From Pamela Zevit, Como Watershed Society:

Presidents Report

This document though of the "applied science voluminous type" is the long-awaited final version of a
draft from 2002 prepared by students of the Forest Ecology program (combined REM program @ SFU and
CACR @ UBC). Some familiar names in the acknowledgements for those involved with the Resource &
Environmental Management Program at Simon Fraser. It is a good reference document for anyone
involved in ecosystem management at a range of scales.

December 2004 – WLAP Thresholds in Habitat Supply: A Review of the Literature (PDF 1.92MB) This
report, Wildlife Report R-27, is written by P. R. Dykstra, and is a review of literature dealing
with thresholds in the response of species to changes in the amount of habitat. It reflects the
state of our knowledge about non-linear or “threshold” change that may have rapid, drastic effects
on species or ecosystems. Ecological thresholds involve a change in the rate of response to
ecosystem change; a critical value of an ecosystem property at which previously linear or unobserved
change becomes a drastic transformation.

http://www.citbc.org/b-Thresh-Dykstra-Sep04.pdf"http://www.citbc.org/b-Thresh-Dykstra-Sep04.pdf