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Images for around Christchurch; more images...

Audio, Radio New Zealand

University of Canterbury geologist Mark Quigley has earned a reputation for being a great science communicator on the subject of earthquakes. But when he's not in the media spotlight, he's out and about around Canterbury building a picture of the region's tectonic history, and trying to understand what might happen in the future.

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Aftermath of the earthquake in Christchurch where the cleanup has begun. Historic buildings around Christchurch received varying degrees of damage. Workers take material up to one of the turrets at the Rolleston Avenue end of the Arts Centre for stabilisation work".

Research papers, University of Canterbury Library

Cats all over the world hunt wild animals and can contribute to the extinction of threatened species. In New Zealand, around half of all households have at least one cat. When cats live close to a natural area, such as a wetland, they may have impacts on native species. A previous study on the movements and hunting behaviour of domestic (house) cats around the Travis Wetland, Christchurch, New Zealand during 2000-2001 raised concerns about the effects of cats on the local skink population, as skinks were a frequent prey item. My study is a comparison to the prior study, to determine if impacts have changed alongside changes in human populations in the area post-earthquake. The domestic cat population in the area was estimated by a household survey in March-April 2018. For a 6 month period from March-September 2018, 26 households recorded prey brought home by their 41 cats. During April-July 2018, 14 cats wore Global Positioning System (GPS) devices for 7 days each to track their movements. Skink abundance was measured with pitfall trapping over 20 days in February 2018. There were more households in the area in 2018 than there were in 2000, but the numbers of cats had decreased. In the 196 ha study area around Travis Wetland, the domestic cat population was estimated at 429 cats, down from the previous 494. Most of the cats were free roaming, but the majority had been desexed and many were mostly seen at home. A total of 42 prey items were reported from 26 households and 41 cats over 6 months. Of these, 62% were rodents, 26% were exotic birds, and 12% were native birds. There were no native skinks, other mammals, or other vertebrates such as fish and amphibians (invertebrates were not included in this study). Eight male and six female cats were tracked by GPS. Home range sizes for the 100% minimum convex polygons (MCPs) ranged from 1.34 to 9.68 ha (mean 4.09 ha, median 3.54 ha). There were 9/14 (64%) cats that entered the edge of the wetland. Males had significantly larger home range areas at night and in general compared with females. However, age and distance of the cat’s household to the wetland did not have a significant effect on home range size and there was no significant correlation between home range size and prey retrieved. In 20 days of skink trapping, 11 Oligosoma polychroma were caught. The estimated catch rate was not significantly different from an earlier study on skink abundance in Travis Wetland. The apparently low abundance of skinks may have been the result of successful wetland restoration creating less suitable skink habitat, or of other predators other than cats. In the future, increased education should be provided to the public about ways to increase wildlife in their area. This includes creating lizard friendly habitat in their gardens and increasing management for cats. Generally, only a few cats bring home prey often, and these select cats should be identified in initial surveys and included in further studies. In New Zealand, until management programmes can target all predators in urban areas, domestic cats could stay out at night and inside during the day to help decrease the abundance of rodents at night and reduce the number of birds and lizards caught during the day.

Audio, Radio New Zealand

The Alps and ranges around New Zealand are now laden with snow yet while most of us are hunkering down and keeping warm, some in Canterbury are still having to get on within a broken city following this year's earlier devastating earthquakes. Bryan began by speaking to Major Mike Allwright of the Salvation Army and followed up with Lyttleton musician Lindon Puffin. Bryan also spoke to Christine Parker from the Eastern suburb of Aranui and Regina Nyadani who lives in central Christchurch with her family.

Images, UC QuakeStudies

A red double-decker tour bus sits outside the former Registry building of the Christchurch Arts Centre. A broken window has been boarded up and security fencing has been placed around the building. A sign pointing towards the Christchurch Art Gallery is attached to the fence.