Table 1 Decay classes.

From: Different socialities affect habitat preferences in the coexisting wood-feeding cockroaches Panesthia angustipennis spadica and Salganea esakii

Decay class

Knife penetration length

Appearance

Bark

Circumference shape

1

Less than 3 mm

Intact

Intact

2

3 mm–1 cm

Starting to break up

Intact

3

1–5 cm

Partly lost

Intact

4

5–10 cm

Lost in most places

Disintegrated

5

More than 10 cm*

Lost in most places

Disintegrated

  1. *For logs with a diameter of 10 cm or less were classified as decay class five when the knife penetrated completely.
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