Search

found 28820 results

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.

Audio, Radio New Zealand

The Rangiora Earthquake Express was the brain child of Brendan Malone and his mate Chris who, on Wednesday last week, came up with an idea to help the citizens of East Christchurch.

Audio, Radio New Zealand

Thirty-four years ago, Spectrum producer Jack Perkins recorded his award-winning documentary capturing the life, the sounds and the personalities of Cathedral square in Christchurch. In this edition of The Vault, Deborah Nation parallels that experience with the sounds of 2011 as she is escorted through the earthquake Red Zone into the square as it is today.

Images, Alexander Turnbull Library

Finance Minister Bill English scratches his head with frustration as he stands up to his chest in earthquake rubble that represents the 'economy'. Allan Bollard the Governor of the Reserve Bank appears in gumboots asking if he can 'help with rebuilding..? by making an 'OCR cut'; he holds a collection box labeled 'OCR cut'. Context - Two earthquakes and hundreds of aftershocks have hit Christchurch, the first on 4 September 2010 and a second more devastating one on 22 February 2011. The Reserve Bank has made a relatively large 50-point cut in its benchmark interest rate, the Official Cash Rate (from 3% to 2.5 per cent). Critics say that inflation is already running unacceptably high and there is a threat of much higher inflation in a year or two when the rebuilding of Christchurch begins to put pressure on limited resources. The Reserve Bank acknowledged these factors, but it has chosen instead to focus on the immediate impact of the earthquake on the economy and particularly on all-important business and consumer sentiment. (Press editorial 12 March 2011) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Someone wearing a Canterbury black and red rugby jersey holds onto two corners of a New Zealand flag which blows in the wind. There is no text in the cartoon. Context - On 22 February 2011 at 12:51 pm (NZDT), Christchurch experienced a major magnitude 6.3 earthquake, which resulted in severe damage and many casualties. A National State of Emergency has been declared. This followed on from an original magnitude 7.1 earthquake on 4 September 2010 which did far less damage and in which no-one died. Both colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

A man representing New Zealand reads a newspaper whose headline is ''Quake may cost insurance co's up to $16B'. Above him is an enormous mosquito that represents 'increased premiums' and that is about to suck the blood out of him; it casts a huge menacing shadow in which the man stands. Context - Insurance companies have experienced massive losses after the Canterbury earthquake. This may ultimately result in higher premiums as insurance companies try to recoup from their loss. According to Chris Ryan, Insurance Council chief executive, "The quake would probably result in foreign reinsurance companies increasing the premiums they charged local insurers." (Stuff 9 Sep 2010) Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

In the top panel a kiwi reads the newspaper which has headlines reading 'Milk prices', 'BMW limos', 'Dodgy politicians', and 'Foreign despot news' and says 'Let's get this all in perspective'. In the lower panel the kiwi walks among the ruins and the graves of Christchurch and thinks 'Christchurch and Canterbury need our attention and care!!' Context - The very severe Christchurch earthquake of 22 February 2011 in which probably more than 200 people died and an enormous amount of structural damage has been done. The headlines refer to Fonterra putting a freeze on the price of milk, the government buying expensive limos (both of these making headlines because of the state of the economy) and lastly the 'foreign despot' is Gaddafi in Libya. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Someone holds a bucket with 'Christchurch' printed on it for collecting donations. Context - People need assistance after the devastating earthquake of the 22nd February. On 22 February 2011 at 12:51 pm (NZDT), Christchurch experienced a major magnitude 6.3 earthquake, which resulted in severe damage and many casualties. A National State of Emergency has been declared. This followed on from an original magnitude 7.1 earthquake on 4 September 2010 which did far less damage and in which no-one died. Both colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

Shows the face of a man with a large tear rolling down his cheek ; in the tear is the word 'Christchurch'. Context - On 22 February 2011 at 12:51 pm (NZDT), Christchurch experienced a major magnitude 6.3 earthquake, which resulted in severe damage and many casualties. A National State of Emergency has been declared. This followed on from an original magnitude 7.1 earthquake on 4 September 2010 which did far less damage and in which no-one died. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The word 'CANTERBURY' is printed in large letters on the cartoon in the region's colours of red and black stripes. The 'CAN' part of the name is in larger print and is above the rest of the word. Context is 22 February 2011 earthquake in Christchurch. The cartoon refers to reports of courage, generosity and 'can do' attitude of the people. Colour and black and white versions of this cartoon are available Quantity: 2 digital cartoon(s).

Images, Alexander Turnbull Library

The title reads 'Shipping container shopping for Merivale?.. The cartoon shows a row of shops that have been created from containers. An oil slick seeps from one of them. Someone in 'Chez Merivale' says 'Nice idea darling. But did they have to use the Rena's containers?' Context: Refers to the container ship 'Rena' which is grounded on the Astrolabe Reef off the Bay of Plenty and threatens to become a disaster of huge proportions as oil spews into the sea. Modified shipping containers have been put in place in the suburb of Merivale to replace broken shops. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

Text reads 'Latest Christchurch East band' The name of the band is 'The Silty Stones' and the band sings 'We can't get no... sa-tis-faction! 'Cos we got more li-qui-faction! And we cry, and we cry, and we try to get by We can't get no sa-tis-faction!' The band are cleaning up the latest liquefaction from around a house and are using their tools as musical instruments. Context: there was a 4.9 magnitude aftershock in Canterbury on December 26th (Boxing Day 2011) The song is a take-off of the 'Rolling Stones' song 'We can't get no satisfaction'. Quantity: 1 digital cartoon(s).

Images, Alexander Turnbull Library

The cartoon shows the word 'Christchurch' with 'church' crossed out and replaced with 'mess'. A second version has the word 'scary' added. A third version has the word 'church' replaced by 'mas'. A fourth version has the words 'early' and 'presence' included and 'church' is replaced by 'mess'. Context: concern about continuing trials and tribulations of Christchurch with unremitting earthquakes and aftershocks. Four versions of this cartoon are available Quantity: 4 digital cartoon(s).

Images, Alexander Turnbull Library

The title is 'Cardboard cathedral proposed...' The cartoon shows the Christchurch Cathedral completed with cardboard boxes and a spire made of used toilet rolls. A puppy is in the process of unwinding toilet paper from the last roll. On an earlier part of the roof stand cardboard cutouts of the Christchurch wizard and maybe the mayor, Bob Parker. Context: A design for a temporary cathedral has been outlined by renowned Japanese architect Shigeru Ban. The proposed $4 million temporary replacement for Christchurch's destroyed cathedral made of shipping containers and cardboard has been met with scepticism from residents of the quake-hit city who wonder whether another church is really what the city needs right now. (3 News 1 August 2011) Quantity: 1 digital cartoon(s).