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Len Webb Ecological Images Collection


Images Arranged by Subject Category

Disturbance

Disturbance (General)
Disturbance -- Cyclones
Disturbance -- Fire
Disturbance -- Tornado

Disturbance

Epicormic growth on stems of trees (Eucalyptus spp.) is characteristic regrowth after being scorched and burnt by wildfires.
East of Bulladelah, Pacific Highway, New South Wales, March 1971.

Eucalypt woodland damaged by local tornado ("twister") which follows a narrow path (ca. 100 metres wide), usually derived from a regional cyclone.
South of Tenterfield, New South Wales, February 1964.

Low regeneration of disturbed coachwood-dominated cloudy wet submontane (warm temperate) rainforest on eutrophic basaltic red soils, under lower temperatures where complex cool subtropical rainforest cannot grow.
Robertson Plateau, New South Wales, August 1955.

Moribund salt-wind sensitive rainforest species on lower hind dune, exposed two years previously by removal of vegetation buffer by rutile sand-mining of foredunes.
Kingscliffe, New South Wales, 1961.

Disturbance -- Cyclones

Aerial close-up of mountains showing patterns of cyclone damaged and intact rainforest, depending on aspect, position on slopes, and local turbulence (chaos theory!).
South of Cairns, Queensland, March 1956.

Aerial view of coastal corridor south of Cairns showing tropical rainforest canopy damage (about three weeks previously).
South of Cairns, Queensland, March 1956.

Aerial view of coastal corridor south of Cairns showing tropical rainforest canopy damage (about three weeks previously).
South of Cairns, Queensland, March 1956.

Aerial view of eastern slopes of Bellenden Ker Range, showing pattern of defoliation and canopy damage.
Bellenden Ker Range, Queensland, March 1956.

Aerial view south of Cairns of sugar cane farmlands of coastal corridor, showing defoliation of rainforests on slopes of foothills and mountains, with intact rainforest tongues in gullies.
South of Cairns, Queensland, March 1956.

Aerial view south of Cairns showing pattern of cyclone damage.
Coastal corridor south of Cairns, Queensland, March 1956.

Aerial view south of Cairns showing pattern of cyclone damage.
Coastal corridor south of Cairns, Queensland, March 1956.

Aerial view south of Cairns showing pattern of cyclone damage.
Coastal corridor south of Cairns, Queensland, March 1956.

Cyclone damage of rainforest on foothills.
Between Innisfail and Silkwood, Queensland, March 1956.

Cyclone-damaged house.
Harvey's Creek, Queensland, March 1956.

Cyclones are a significant ecological factor in rainforest vegetation patterns.
South of Cairns, Queensland, March 1956.

Damaged canopy of secondary rainforest/"cyclone scrub" on foothills.
Near Babinda, Queensland, March 1956.

Defoliated secondary rainforest along roadside on coastal plain towards foothills (cleared sugar cane farms nearby).
McNamee Creek road near Innisfail, Queensland, March 1956.

Defoliation and shredding of mainly secondary rainforest.
Harvey's Creek near Babinda, Queensland, March 1956.

Defoliation and shredding of trees in Palm swamp.
Codfish Creek near Babinda, Queensland, March 1956.

Defoliation and some windthrows in mainly secondary plus old "cyclone scrub" rainforest along road.
Whoopen Creek south of Gordonvale, Queensland, March 1956.

Defoliation and some windthrows in mainly secondary plus old "cyclone scrub" rainforest along road.
Whoopen Creek south of Gordonvale, Queensland, March 1956.

Defoliation, twisting of smaller diameter stems, and tree falls, leaving only scattered trees of original canopy.
McNamee Creek near Innisfail, Queensland, March 1956.

Example of severe cyclone damage on coastal plain.
Codfish Creek near Babinda, Queensland, March 1956.

Example of severe cyclone damage on coastal plain.
Codfish Creek near Babinda, Queensland, March 1956.

Extensive crown defoliation on foothill slopes.
Near Babinda, Queensland, March 1956.

Extensive crown defoliation on foothill slopes - view above Babinda township.
Near Babinda, Queensland, March 1956.

Extensive crown defoliation on foothill slopes, plus previous burning, forming blady grass slopes.
Palma, near Babinda, Queensland, March 1956.

Farmer inspects his "Pinder" sugar cane shattered by Cyclone Agnes.
Near Cucania, Queensland, March 1956.

Farmer inspects his "Pinder" sugar cane shattered by Cyclone Agnes.
Near Cucania, Queensland, March 1956.

Feather-palm swamp on poorly drained lowlands: recovery nine months after cyclone damage.
Codfish Creek near Babinda, Queensland, November 1956.

Old "cyclone scrub" soon after further cyclone damage.
Cucania, Queensland, March 1956.

Recovery of broken-canopied tropical lowland rainforest nine months after cyclone damage.
Tam O'Shanter Range near El Arish, Queensland, November 1956.

Recovery of mixed secondary and primary rainforest after cyclone damage eight months previously.
McNamee Creek near Innisfail, Queensland, November 1956.

Recovery of secondary tropical lowland rainforest eighteen months after cyclone damage.
Palma, near Tully, Queensland, November 1956.

Restored secondary rainforest nine months after yet another cyclone.
Harvey's Creek near Babinda, Queensland, November 1956.

So-called "cyclone scrub", i.e. old broken-canopied rainforest intermittently damaged by cyclones.
Cucania, Queensland, Early 1950s.

Stochastic pattern of damage, e.g. defoliated hills, more or less intact rainforest on adjacent flat (facing west).
Tam O'Shanter Range near El Arish, Queensland, March 1956.

Typical cyclone damage pattern on foothills.
Bartle Frere north of Innisfail, Queensland, March 1956.

Typical cycloned tropical lowland rainforest on foothills, locally termed "cyclone scrub".
Harvey's Creek near Babinda, Queensland, November 1956.

Typical cycloned tropical lowland rainforest on foothills, locally termed "cyclone scrub".
McNamee Creek near Innisfail, Queensland, 1956.

Typical cycloned tropical lowland rainforest on foothills, locally termed "cyclone scrub".
Whoopen Creek near Innisfail, Queensland, November 1956.

Typical cycloned tropical lowland rainforest on foothills, locally termed "cyclone scrub".
Near Cucania, Queensland, 1956.

Typical depleted and regularly cycloned tropical rainforest.
Babinda, Queensland, November 1956.

Typical pattern of defoliation on hillsides, as well as blown down sugar cane on adjacent farms.
Babinda area, Queensland, March 1956.

Very broken canopy of tropical wet lowland rainforest damaged by cyclone nine months previously.
McNamee Creek near Innisfail, Queensland, November 1956.

Disturbance -- Cyclones -- Regeneration

Close-up of broken-canopied rainforest nine months after cyclone "Agnes" damage shown in Image 2-88.
McNamee Creek near Innisfail, Queensland, March 1956.

Close-up of broken-canopied rainforest nine months after cyclone "Agnes" damage shown in Image 2-88.
McNamee Creek near Innisfail, Queensland, March 1956.

Fourteen years after cyclone "Agnes".
Cucania north of Babinda, Queensland, 1970.

Natural repair (regeneration) of canopy damage nine months after cyclone "Agnes", showing typical "cyclone scrub".
Cucania, north of Babinda, Queensland, November 1956.

Regeneration 6 years and 9 months after cyclone "Agnes".
Cucania north of Babinda, Queensland, August 1964.

Regeneration eight and a half years after cyclone "Agnes".
Cucania north of Babinda, Queensland, August 1964.

Regeneration eight and a half years after cyclone "Agnes".
Cucania north of Babinda, Queensland, August 1964.

Disturbance -- Cyclones Plus Human Impacts

Broken-canopied and depleted tropical lowland rainforest.
Innisfail to Silkwood road, Queensland, November 1956.

Disturbance -- Fire

Depleted tropical wet lowland rainforest invaded by fire.
Near El Arish, Queensland, Winter 1958.

Depleted tropical wet lowland rainforest invaded by fire.
Near El Arish, Queensland, Winter 1958.

Depleted tropical wet lowland rainforest invaded by fire.
Near Babinda, Queensland, November 1958.

Fire pattern on wet tropical lowlands, where rainforest is slowly displaced by fire-tolerant/pyrophilic grasses.
Near Maadi, Tully area, Queensland, 1958.

Fire, now usually lit, as a recurrent ecological factor in seasonally dry tropics of Northern Australia.
Near Old Lockhart Mission, Cape York Peninsula, Queensland, 1960s.

Fragmented deciduous vine thicket in savanna.
Llankelly Creek east of Coen, Cape York Peninsula, Queensland, November 1969.

Fragmented deciduous vine thicket in savanna.
Llankelly Creek east of Coen, Cape York Peninsula, Queensland, November 1969.

Mild fire scorching edge of depleted tropical wet lowland rainforest.
Near El Arish, Queensland, Winter 1958.

Mountain Ash forest destruction by running-crown fire.
Highlands area, Victoria, August 1955.

Small cool surface fire invading edge of depleted tropical wet lowland rainforest.
Near El Arish, Queensland, Winter 1958.

Disturbance -- Fire (lit)

Recently burnt remnant gallery forest.
Massey Creek east of Coen, Cape York Peninsula, Queensland, November 1969.

Recently burnt remnant gallery forest.
Massey Creek east of Coen, Cape York Peninsula, Queensland, November 1969.

Disturbance -- Tornado?

Local canopy gap possibly resulting from small tornado.
Bellenden Ker Range, Queensland, July 1976.


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