Ecological Archives M078-023-A1

David B. Lindenmayer, Ross P. Cunningham, Christopher MacGregor, Mason Crane, Damian Michael, Joern Fischer, Rebecca Montague-Drake, Adam Felton, and Adrian Manning. 2008. Temporal changes in vertebrates during landscape transformation: a large-scale "natural experiment". Ecological Monographs 78:567–590.

Appendix A. Measures of vegetation structure and plant species composition recorded at each five vegetation plots established at each site (see text) in the study.

Variable

Description

Topography

The topographic position was recorded (gully, midslope, ridge).

Dominant tree species

The dominant species of tree was identified.

Tree height

The mean height of trees was measured using a clinometer.

Stand basal area

Measured in m2 per ha using a basal area wedge for each vegetation strata.

Number of trees

The number of living and dead trees in each vegetation plot was measured.

Regrowth index

An index describing the extent of young regrowth vegetation in each plot (from a score of 1 to 4).

Stump count

The number of cut stumps in each vegetation plot was measured

Dieback index

Evidence of dieback among dominant trees was recorded (e.g. crown and/or lateral branch death).

Mistletoe index

The number of clumps of mistletoe in each vegetation plot was recorded.

Hollow trees

The number of bayonet and branch hollows (sensu Jacobs, 1955) was recorded.

Dominant cover

The % vegetation cover of dominant trees was recorded as one of six classes: 0%, 1–20%, 20–40%, 40–60%, 60-80% and 80-100%.

Sub-dom. cover

The % vegetation cover of sub-dominant plants was recorded as one of six classes: 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80–100%.

Shrub cover

The % vegetation cover of shrubs was recorded as one of six classes: 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80-100%.

Ground Cover

The % vegetation cover of the ground layer was assigned to one of six classes: 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80–100%.

No. vegetation strata

The number of distinct vegetation layers was measured in each vegetation plot.

Number logs

The number of logs in each diameter classes was recorded (10–20 cm, 20–30 cm, 30–40 cm, 40–50 cm and >50 cm).

Grass Index

The % cover of grass was recorded as one of six classes:- 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80–100%.

Grass Height

The height of the grass (m) was measured.

Litter layer

An index describing the depth and extent of the litter layer in each plot (from a score of 1 to 4).

Rock Index

A rock cover index (= the quantity of exposed rock) was recorded for each plot as one of six classes: 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80–100%.

Blackberry index

An index describing the prevalence of introduced Rubus fruticosus scored from none to 100% in six categories each of 20% intervals: 0%, 1–20%, 20–40%, 40–60%, 60–80% and 80–100% .

Disturbance index

Evidence of disturbance was recorded and assigned a score 0–5 depending on intensity.

Distance to water

The distance the permanent water (stream, farm dam, etc.) was measured.


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