Question: Hoffnungsthal settlers were warned that the area was prone to flooding by an indigenous people also referred to as what?

Context paragraphs:
Hoffnungsthal, South Australia: Hoffnungsthal ("Valley of Hope") is the location of a former German pioneer settlement, located in South Australia's Barossa Valley.  Founded in 1847, it was located in an ephemeral lagoon which was dry for the first years of settlement.  Local Peramangk people warned the settlers that the area was prone to flooding, but this advice was ignored.  In October 1853, after a week of heavy spring rains, the village was flooded and many of the houses were evacuated.  After the cost of a proposed drain was seen as prohibitive, the village was eventually left deserted.  Most of the settlers moved to the Barossa village of Bethanien as well as further a field.

Grand Marais, Minnesota: Grand Marais is a city in Cook County, Minnesota, United States.  It is a northern village located on the shores of Lake Superior, and a vibrant, bustling town.  The population was 1,351 at the 2010 census.  It is also the county seat and sole municipality of Cook County.  Prior to inhabitation by white settlers and prior to Minnesota’s statehood, Grand Marais was inhabited by the Anishinaable indigenous people, the thriving woodland people also known as the Ojibwe.   The Ojibwe name for the area is "Gichi-biitoobiig", which means "great duplicate water," "parallel body of water" or "double body of water" (like a bayou), a reference to the two bays which form the large harbor off Lake Superior.

Kedatuan of Dapitan: The Kedatuan of Dapitan was an ancient Philippine polity once based at Bohol at Tagbilaran Strait.  Bohol's first indigenous people settled in the Anda peninsula.  These people came from northeast Mindanao.  These people were responsible for the Anda petrographs which are one of the most important indigenous rock writing in the country.  Around the 12th century, a group of people from Northern Mindanao settled in the strait between mainland Bohol and the island of Panglao.  Those people came from a nation in northern Mindanao called Lutao (probably the animist kingdom of what will soon be the Islamic Lanao).  Those people established the Kedatuan of Dapitan in western Bohol because the true indigenous people of Bohol in the Anda peninsula and nearby areas were not open to them, forcing them to establish settlement in the western part of the island.  The kedatuan was first built with hardwood on the soft seabed.  It engaged it trade with nearby areas and some Chinese merchants.  The Jesuit Alcina tells tales about a rich nation he called the 'Venice of the Visayas', pointing to the Kedatuan of Dapitan at that time.  The Jesuit also tells of a princess named Bugbung Hamusanum, whose beauty caused her suitor, Datu Sumangga, to raid parts of southern China to win her hand.  By 1563, before the full Spanish colonization agenda came to Bohol, the Kedatuan of Dapitan was at war with the Sultanate of Ternate in the Moluccas (who were also raiding the Rajahnate of Butuan).  At the time, Dapitan was ruled by two brothers named Dalisan and Pagbuaya.  The Ternateans at the time were allied to the Portuguese.  Dapitan was destroyed and Datu Dalisan was killed in battle.  His brother, Datu Pagbuaya, together with his people fled back to Mindanao and established a new Dapitan in the northern coast of the Zamboanga peninsula.  The new Dapitan eventually was incorporated by the Spanish.  Pagbuaya's son, Manooc was among those who sided with the Spanish.  He converted to Christianity and aided the Spaniards in the conquest of Islamic Manila and the Camarines area in Luzon.  The people of Dapitan also assisted the Spanish in the conquest of Northern Mindanao.  Eventually, the Dapitans took their vengeance against the Ternateans when Manooc's cousin, Laria, guided the Spanish in their invasion of the Moluccas (Ternate).

Indigenous architecture: The recent field of Indigenous Architecture refers to the study and practice of architecture of, for and by Indigenous people It is a field of study and practice in the United States, Australia, New Zealand, Canada, Arctic area of Sápmi and many other countries where Indigenous people have a built tradition or aspire translate or to have their cultures translated in the built environment.  This sometimes has been extended to include landscape architecture and other designs for the built environment.

Ma'anyan people: Ma'anyan (colonial spelling Maanjan or Meanjan), Dayak Maanyak or Dayak Barito Timur people are a sub-ethnic group of the Dayak people indigenous to Borneo.  They are also considered as part of the east Barito Dusun group with the name Dusun Ma'anyan.  According to J. Mallinckrodt (1927), the Dusun people group is part of the Ot Danum people cluster, although later that theory was disproved by A. B. Hudson (1967), who argues that the Ma'anyan people are a branch of the Barito family.  The Ma'anyan people who are often referred to as Dayak people are also referred to as Dayak Ma'anyan.  The Dayak Ma'anyan people inhabit the east side of Central Kalimantan, especially in the East Barito Regency and parts of South Barito Regency which are grouped as Ma'anyan I.  The Dayak Ma'anyan people also inhabit the northern parts of South Kalimantan, especially in Tabalong Regency which refers to the Dayak Warukin people.  The Dayak Balangan people or Dusun Balangan people which are found in the Balangan Regency and the Dayak Samihim people that are found in the Kotabaru Regency are grouped together with the Dayak Ma'anyan people group.  The Dayak Ma'anyan people in South Kalimantan are grouped as Ma'anyan II.

Ot Danum people: Ot Danum (also known as Dohoi, Malahoi, Uud Danum or Uut Danum) people are the sub-ethnic of the Dayak people (hence also referred as Dayak Ot Danum) from the upper reaches of south Kapuas River, and along the Schwaner range, bordering West Kalimantan and Central Kalimantan, Indonesia.  They are the most important group of the upper Melawi River and culturally and linguistically the most distinct from the Malay people.  Besides, the Malay people, the Ot Danum people are also linguistically distinct from the Ngaju people who live along the middle reaches of Central Kalimantan's great rivers and who are numerically and linguistically the dominant Dayak people group in the area.  Just like most Dayak people group, majority of the Ot Danum people also practice Kaharingan religion.

Sami people: The Sami people (also Sámi or Saami, traditionally known in English as Lapps or Laplanders) are an indigenous Finno-Ugric people inhabiting the Arctic area of Sápmi, which today encompasses parts of far northern Norway, Sweden, Finland, and the Kola Peninsula of Russia.  The Sami are the only indigenous people in Scandinavia that are recognized and protected under the international conventions of indigenous peoples, and are hence one of the northernmost indigenous people of Europe.  Sami ancestral lands are not well-defined.  Their traditional languages are the Sami languages and are classified as a branch of the Uralic language family.

Peramangk: The Peramangk are an indigenous Australian people whose traditional lands are primarily located in the Adelaide Hills, and also in the southern stretches of the Fleurieu Peninsula in the Australian state of South Australia.  They were also referred to as the Mount Barker tribe, as their numbers were noted to be greater around the Mount Barker summit, but Peramangk country extends from the Barossa Valley in the north, south to Myponga, east to Mannum and west to the Mount Lofty Ranges.

Fijians: Fijians, officially known since 2010 as iTaukei, are the major indigenous people of the Fiji Islands, and live in an area informally called Melanesia.  Indigenous Fijians are believed to have arrived in Fiji from western Melanesia approximately 3,500 years ago, though the exact origins of the Fijian people are unknown.  Later they would move onward to other surrounding islands, including Rotuma, as well as blending with other (Polynesian) settlers on Tonga and Samoa.  They are indigenous to all parts of Fiji except the island of Rotuma.  The original settlers are now called "Lapita people" after a distinctive pottery produced locally.  Lapita pottery was found in the area from 800 BCE onward.

Indigenous territory (Brazil): In Brazil, an indigenous territory or indigenous land (Portuguese: "Terra Indígena" ] , TI) is an area inhabited and exclusively possessed by indigenous people.  The Brazilian Constitution recognises the inalienable right of indigenous peoples to lands they "traditionally occupy" and automatically confers them permanent possession of these lands.  In practice, however, a formal process of demarcation is required for a TI to gain full protection, and this has often entailed protracted legal battles.  Even after demarcation, they are frequently subject to illegal invasions by settlers and mining and logging companies.

Supporting paragraphs: Hoffnungsthal, South Australia Peramangk
Answer: the Mount Barker tribe