FGI07 - Estimating the Abundance of Arboreal Forage Lichens - Land management Handbook

		Ministry of Forests Forest Science Program
		Abstract for Field Guide Insert 07

		Estimating the Abundance of Arboreal Forage Lichens
		Authors or Ministry Contacts: Harold M. Armleder, Susan K. Stevenson, and Stephen D. Walker
		Branch: Research
		Subject: Botany
		Series: Field Guide Insert
		Other details: Published 1992.

Abstract

HOW TO USE THE HANDBOOK

This handbook will help users estimate:

proportions of the two main types of forage lichen, and
overall abundance of the forage lichen.

The first part of the handbook introduces the two types of lichen. Photos showing various mixes of the two types are provided for users who need to estimate percentages.

The second, and major part, of the handbook is a guide to rating overall lichen abundance. It includes two sets of photo series, showing boundaries between lichen classes:

illustrates individual trees with different amounts of lichen, and
shows the same photos, but arranged to facilitate comparison between different trees.

The final part of the handbook provides more information on the zone within a tree in which to estimate lichen abundance and explains how the classes relate to actual lichen biomass. It also includes suggestions for further reading.

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Updated September 2002

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