Southland temperate forests
The Southland temperate forests is a temperate broadleaf and mixed forests ecoregion on New Zealand's South Island. The natural vegetation was mostly forest, but over the centuries human activities, including grazing and fires, replaced much of the original forest with grassland and agriculture.
Geography
The Southland temperate forests occupy the southernmost portion of the South Island. Fiordland lies to the west. The South Pacific Ocean lies to the south and southeast. The Takitimu Mountains and Hokonui Hills form the northern edge of the ecoregion. Other highlands include the Longwood Range in the southwest, and The Catlins in the southeast. The Southland Plains cover the central-southern portion of the ecoregion. Invercargill is the largest city in the ecoregion. Most of the ecoregion lies within the Southland Region, with part of the northeast of the ecoregion being in Otago.Flora
The natural vegetation was mostly forest of broadleaf trees and podocarp conifers. Higher-elevation forests are predominantly southern beech, including silver beech in the western mountains and red beech in the northern mountains. The lowland forests include broadleaf trees and podocarps, with kahikatea common in swampy areas and rimu in drier areas. The broadleaf evergreen southern rata and kamahi are found in the central hill country and in The Catlins.Tussock grasslands occurred naturally, and expanded into large areas where the forests were burned or cleared. Red tussock grass was the predominant species, with snow tussocks found on the higher peaks.
Other habitats include dunes, coastal and riverine wetlands, and coastal tussock grasslands.
Fauna
Native birds include the yellow-eyed penguin, yellowhead or mōhua, and New Zealand rock wren. Swamp harriers and South Island fernbirds inhabit the tussock grasslands.Southern elephant seals, New Zealand fur seals and New Zealand sea lions live on the shore.
History
At the end of the ice age, New Zealand's glaciers retreated and the region became forested. In New Zealand birds were the largest land animals, and several species of flightless moa inhabited the ecoregion, along with Haast's eagle, the flightless New Zealand swan and the South Island goose.The Māori settled the region after 1300. The early settlers hunted birds and seals, and the moa, New Zealand swan, and New Zealand goose were hunted to extinction. Haast's eagle relied on moas for food, and also became extinct. Hunters set fires to drive game from the forests, and frequent fires converted large areas of forest to tussock grassland. As populations of large birds and seals dwindled, fishing became an increasingly important source of food for the local Maori and they established kaika or seasonal camps, along the shoreline.
European settlers arrived in the 19th century. Mixed-race whaling bases were established at Port Molyneux, Tautuku, and Waikawa, but the whales were soon over-hunted and whaling was abandoned. In the second half of the 19th century farmers and loggers settled the region, and sawmilling became an important local industry.
The Southland Plains became one of New Zealand's most productive agricultural areas. Much of the remaining lowland forest was cleared, and many of the wetlands were drained or filled. Large-scale livestock grazing and introduced exotic grasses altered the ecology of the grasslands.