Seasonality of Climate Drives the Number of Tree Hollows in Eastern Australia: Implications of a Changing Climate

Table 2

Selected features of collected data for species with over 200 samples.

Species	DBH (cm)^*	Sample number	Largest DBH (cm)	Bark type	Age score^+
Eucalyptus prava	27	430	162	Smooth	17
Eucalyptus camaldulensis	35	201	180	Smooth	19
Eucalyptus populnea	32	207	120	Box	27
Angophora floribunda	55	2056	190	Box	29
Eucalyptus rossii	30	207	100	Smooth	30
Eucalyptus albens	40	1450	127	Box	32
Eucalyptus blakelyi	57	1607	180	Smooth	32
Eucalyptus bridgesiana	44	248	134	Box	33
Eucalyptus caleyi	36	267	106	Iron	34
Eucalyptus pilligaensis	35	481	102	Box	34
Angophora leiocarpa	45	542	120	Smooth	38
Eucalyptus conica	33	202	86	Box	38
Eucalyptus melliodora	65	864	170	Box/smooth	38
Eucalyptus moluccana	60	427	158	Box	38
Corymbia trachyphloia	43	1091	107	Tessellated	40
Eucalyptus caleyi	44	287	107	Iron	41
Eucalyptus chloroclada	32	390	74	Smooth	43
Eucalyptus campanulata	62	350	138	Peppermint	45
Eucalyptus crebra	54	2355	120	Iron	45
Eucalyptus viminalis	75	198	158	Smooth	48
Eucalyptus fibrosa	52	1208	107	Iron	49
Eucalyptus melanophloia	48	923	77	Iron	62
Eucalyptus caliginosa	54	951	123	Stringy	68
Eucalyptus dealbata	56	744	83	Smooth	68
Eucalyptus sideroxylon	56	217	85	Iron	68
Allocasuarina luehmannii	59	987	68	Fissured	87
Acacia cheelii		248	44	Fissured	NA
Acacia harpophylla		349	83	Fissured	NA
Callitris endlicheri		2460	74	Furrowed	NA
Callitris glaucophylla		5445	116	Furrowed	NA
Casuarina cristata		387	75	Fissured	NA
Casuarina cunninghamiana		240	131	Fissured	NA
Eucalyptus andrewsii		463	117	Peppermint	NA
Eucalyptus biturbinata		200	135	Smooth	NA
Eucalyptus dwyeri		258	102	Smooth	NA
Eucalyptus macrorhyncha		434	99	Stringy	NA
Eucalyptus youmanii		281	110	Stringy	NA

^*The diameter at which more than 50% of larger trees contain visible hollows.
⁺Age surrogate for point at which hollows become more common as calculated by dividing column one by the largest stem recorded and presenting as a percentage.