Goats are reported to have been liberated in at least ten
places on the Auckland Island group, New Zealand, in the second half of the
nineteenth century as food for castaways, with at least one liberation in 1865
on the main Auckland Island. In 1934 the islands were defined as Nature
Reserves and today they are administered by the Department of Conservation. By
the 1970s, only one population of about a hundred goats remained, these living
on the north-west side of Port Ross, one of the driest and warmest parts of the
main island.
Following a 1972-1973 field study by ecologists Rudge and
Campbell, they wrote (in 1977), “We conclude that numbers of goats will remain
at much the present level or, like the rabbits on Rose Island another of the
Auckland Island group decline with the advance of woody vegetation; and that
the range will not expand beyond Grey Duck Creek. Therefore we see no merit in
exterminating the population as there are many signs that the vegetation is
already slowly doing it. Meanwhile they may be safely left alone, having the
distinction of being the world’s most southerly population of feral goats.”
This was strongly contested by some leading botanists, who
wrote (in 1978) that “if they are indeed dying out slowly, the opportunity
should be taken of shooting them now, rather than risking an increase or spread
through unforeseen circumstances. The conservation value of the native biota
far transcends the limited scientific interest that the goats present.”And a few years later, Campbell and Rudge
(1984) appear to have changed their views, recommending the extermination of
goats (and pigs) on the island, even though the goats had not increased in
numbers – although they may have increased their range.
Subsequent observations by Rudge in 1986, made during a
Department of Lands and Survey expedition to Auckland Island to capture some
goats and take them to the South Island of New Zealand, indicated that the
Auckland Island goats were “among the largest recorded in New Zealand.”Eleven goats were collected at this time
(one account says thirteen were captured with two dying shortly after their
arrival on the mainland). A preliminary report on these by the Animal Science
Group at Lincoln College noted that they ranged in colour from black to
white-grey (although some pure white had been seen on the island). Blood typing
showed a marked difference in terms of serum albumen and transferrins from the
feral and Anglo-Nubian goats held at Lincoln. Their plasma protein
characteristics were similar to Spanish Serrara Andaluza and Hungarian Saanen
goats.
The Lincoln Animal Science Group report concluded: “It is
clear that in spite of an inhospitable climate individual goats appear to be well
adapted for survival on the Auckland Islands although the population as a whole
may be limited by neo-natal mortality. Those goats which survive to maturity
are large framed animals which appear to be genetically different from New
Zealand feral goats. It is possible that under intensive farming conditions
these goats may produce offspring of exceptional size, and good nutrition and
selection could be expected to increase Cashmere [fine undercoat] production.
We feel that these goats warrant further study, both as a source of new genetic
material and as a physiologically adapted population that have evolved over a
100 years in a harsh climate. It would be unwise to eliminate this population
completely since it is difficult to have the foresight to know what
characteristics may be required of farm animals in the future ...”
In 1987 a major recovery project was undertaken by the
Department of Lands & Survey, the New Zealand Navy, Jacques Cousteau and
the crew of his research vessel, Calypso, and the Ministry and Agriculture and
Forestry’s Fisheries Research vessel James Cook. A survey made during this
expedition supported the earlier conclusion that the number of goats on the
island would remain the same or steadily decline. Fifty-six animals were
captured (leaving about 42 on the island), and although thirteen subsequently
died, the remainder were grazed on two Landcorp properties in the South Island.
All the females and half the males were run on a property at Ahaura in
Westland, and the remaining males at Snowdon farm near Te Anau.
An important report in 1988 by Landcorp scientists, Aldous
McIvor and Greg Sherley (who had made a field study of the goats during the
1987 expedition), summarized the history of the Auckland Island goats and the
studies that had been made of them. They noted that the flock had not expanded
its present range (only 0.5% of the island’s area) and consequently had not
significantly damaged indigenous flora and fauna. They concluded that the
remnant flock on Auckland Island was sufficiently important to warrant
protection, and that the safest plan was to preserve the resource, with its own
natural random mating and response to an environment free from man’s influence,
on Auckland Island. They wrote: “The most practical management option that will
retain the historical and scientific values of this flock is to retain the
remnant flock on Auckland Island, where it can be studied and monitored.
Failing this, the remaining animals should be captured and joined with the
other captured animals in Westland. This however is not the the preferred
option. The remnant flock should not be destroyed.”
McIvor and Sherley finished their report with a direct
request to the Department of Conservation to review their recommendations to
the Minister of Conservation with view to giving approval for the goats to
remain on Auckland Island, where they should continue to be studied and
monitored, and if necessary, confined to their present range. Alternatively, if
protection was not granted, eradication should be deferred to enable Landcorp
to capture the remaining animals.
However, the Minister decided to eradicate any goats
remaining on Auckland Island, and this appears to have been carried out by
1992. The following year it was reported that there were only fifteen does and
no bucks left of those that had been taken to the South Island of New Zealand,
and a year later only six does remained and these were probably crossbreds.
Ross Fraser of the Rare Breeds Conservation Society of New
Zealand made vigorous enquires about the goats in 1999, but found them to be
extinct.
Content and Photo Source: New Zealand rare Breeds (
www.rarebreeds.co.nz )