Th. Worthy, QUATERNARY FOSSIL FAUNA OF SOUTH CANTERBURY, SOUTH-ISLAND, NEW-ZEALAND, Journal of the Royal Society of New Zealand, 27(1), 1997, pp. 67-162
This study documents the Late Quaternary fossil fauna from 59 fossil s
ites in the South Canterbury downlands, South Island, New Zealand. Twe
nty-seven sites were predator accumulations attributed to laughing owl
s, two were accumulated by falcons, two were swamp sites, and the rest
were pitfalls or rockshelter deposits. A total of 60 indigenous speci
es of birds, one bat, three rodents, one tuatara, four geckos, and two
skinks were represented in the combined faunas from these sites. When
the birds known historically are added, the fauna of inland South Can
terbury downlands is shown to have had a minimum diversity of 87 speci
es in the Late Holocene before human disturbance. There were no marked
faunal changes associated with the climatic amelioration from the Oti
ra Glacial to the Holocene, such as were seen in the wetter western re
gions. During the Holocene in South Canterbury, species characteristic
of Otiran grassland - shrubland faunas survived alongside those typic
al of Holocene western closed-forest communities, although the latter
were not as abundant as they were in the west. The large diversity of
birds, relative to other New Zealand faunas, is therefore the result o
f continued survival in Canterbury into the Holocene, of grassland - s
hrubland mosaics similar to those that characterised widespread parts
of New Zealand during the glacial periods. However, the geographic fea
ture that permitted the survival of these critical vegetation physiogn
omies also caused the area to be dry, and vegetation was hence most pr
one to destruction by fire. This complex ecosystem is now almost total
ly destroyed.