Lyttelton Service Centre

Images, eqnz.chch.2010

Photos taken in Lyttelton showing the demolition of various buildings following the February 22 earthquake. File reference: CCL-2011-04-29-Lyttelton-Demolition-P1120223 From the collection of Christchurch City Libraries.

Lyttelton Service Centre, London Street

Images, eqnz.chch.2010

Photos taken in Lyttelton showing the demolition at various locations following the February 22 earthquake. File reference: CCL-2011-05-20-Lyttelton-Demolition-P1120445 From the collection of Christchurch City Libraries.

Jim Baltaxe WEMO Photograph 015

Images, UC QuakeStudies

A photograph of emergency management staff meeting outside the Christchurch Art Gallery. The art gallery was used as the temporary Civil Defence headquarters after the 22 February 2011 earthquake. In the background, a New Zealand Fire Service truck can be seen.

BeckerFraserPhotos March 2011 photograph 265

Images, UC QuakeStudies

A dislodged boulder from the cliffs behind Sumner Returned Services' Association car park. The bolder fell from the cliff during the 22 February 2011 earthquake, crushing the local substation and burying several cars.

Jim Baltaxe WEMO Photograph 016

Images, UC QuakeStudies

A photograph of signs on the windows of the Christchurch Art Gallery. The art gallery was used as the temporary Civil Defence headquarters after the 22 February 2011 earthquake. The signs read, "Today is Thursday 3 March 2011" and "Wash your hands!". In the background, emergency management personnel and a New Zealand Fire Service truck can be seen.

Jim Baltaxe WEMO Photograph 111

Images, UC QuakeStudies

A photograph of signs on a wall in the Christchurch Art Gallery. The signs read, "Final media trip to the CTV building, 15:00 hours, media opportunity with National Controller and rescue services. This is the last scheduled media hour into the red zone", "Media Briefings, Tuesday 8 March: 10:30 hours, Wednesday 9 March: 15:00 hours, in auditorium" and "Please switch off your cell phones before entering media briefings. Thank you". There is also a diagram of the first and ground floor of the art gallery. The Christchurch Art Gallery served as the temporary Civil Defence headquarters after the 22 February 2011 earthquake.

Size-specific tree mortality varies with neighbourhood crowding and distur…

Research papers, Lincoln University

Tree mortality is a fundamental process governing forest dynamics, but understanding tree mortality patterns is challenging because large, long-term datasets are required. Describing size-specific mortality patterns can be especially difficult, due to few trees in larger size classes. We used permanent plot data from Nothofagus solandri var. cliffortioides (mountain beech) forest on the eastern slopes of the Southern Alps, New Zealand, where the fates of trees on 250 plots of 0.04 ha were followed, to examine: (1) patterns of size-specific mortality over three consecutive periods spanning 30 years, each characterised by different disturbance, and (2) the strength and direction of neighbourhood crowding effects on sizespecific mortality rates. We found that the size-specific mortality function was U-shaped over the 30-year period as well as within two shorter periods characterised by small-scale pinhole beetle and windthrow disturbance. During a third period, characterised by earthquake disturbance, tree mortality was less size dependent. Small trees (,20 cm in diameter) were more likely to die, in all three periods, if surrounded by a high basal area of larger neighbours, suggesting that sizeasymmetric competition for light was a major cause of mortality. In contrast, large trees ($20 cm in diameter) were more likely to die in the first period if they had few neighbours, indicating that positive crowding effects were sometimes important for survival of large trees. Overall our results suggest that temporal variability in size-specific mortality patterns, and positive interactions between large trees, may sometimes need to be incorporated into models of forest dynamics.