Monitoring the environment

There's no questions that keeping an eye on what's happening to our environment is important. But "our environment" is so complex, it's difficult to find features that can be measured. And features that can be measured and actually tell us something about the environment are even harder to identify. Fortunately, many people are thinking along the same lines and developing ways to keep track of factors that show us how healthy (or not) our surroundings are.

We've recently come across two such resources:

  • A guide for measuring surface water quality (more)
  • Biodiversity indicators for woodlot owners (more)

Surface water quality

Examine water bugs to gauge watershed health! Benthic macroinvertebrates are small animals without backbones that live on the bottom of lakes, rivers, streams, ponds and wetlands. Because different groups of them survive under different conditions, we can infer whether nutrient enrichment, chemical pollution or other factors may be present in a watercourse based on the numbers and types of invertebrates we find. This kind of monitoring can be done using inexpensive tools like nets, buckets, and identification charts.

How to monitor water quality
The Environment Canada web site contains a detailed guide to collecting benthic invertebrates, identifying them, and interpreting the results in terms of what they imply about the water in a specific pond, stream, etc.

Environmental conditions in woodlots

Top of Page

This page was updated on 14 June 2007
© Fletcher Wildlife Garden
Our e-mail address