Dr Gavin Wildridge Johnstone (1941-1987) was an Australian ornithologist who grew up and was educated in Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

. He completed his PhD

PHD

PHD may refer to:*Ph.D., a doctorate of philosophy*Ph.D. , a 1980s British group*PHD finger, a protein sequence*PHD Mountain Software, an outdoor clothing and equipment company*PhD Docbook renderer, an XML renderer...

 thesis on the ecology

Ecology

Ecology is the scientific study of the relations that living organisms have with respect to each other and their natural environment. Variables of interest to ecologists include the composition, distribution, amount , number, and changing states of organisms within and among ecosystems...

 and behaviour of Black Grouse

Black Grouse

The Black Grouse or Blackgame is a large bird in the grouse family. It is a sedentary species, breeding across northern Eurasia in moorland and bog areas near to woodland, mostly boreal...

, at the University of Aberdeen

University of Aberdeen

The University of Aberdeen, an ancient university founded in 1495, in Aberdeen, Scotland, is a British university. It is the third oldest university in Scotland, and the fifth oldest in the United Kingdom and wider English-speaking world...

 in 1969. He moved to Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

 in 1969 to participate in the 1970 Australian National Antarctic Research Expedition (ANARE). There he wintered on Macquarie Island

Macquarie Island

Macquarie Island lies in the southwest corner of the Pacific Ocean, about half-way between New Zealand and Antarctica, at 54°30S, 158°57E. Politically, it has formed part of the Australian state of Tasmania since 1900 and became a Tasmanian State Reserve in 1978. In 1997 it became a world heritage...

 and worked on speciation

Speciation

Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook seems to have been the first to coin the term 'speciation' for the splitting of lineages or 'cladogenesis,' as opposed to 'anagenesis' or 'phyletic evolution' occurring within lineages...

 in Giant Petrels

Giant petrel

Giant petrels is a genus, Macronectes, from the family Procellariidae and consist of two species. They are the largest birds from this family...

. With the Australian Antarctic Division

Australian Antarctic Division

The Australian Antarctic Division is an agency of the Department of Sustainability, Environment, Water, Population and Communities . The division undertakes science programs and research projects to contribute to an understanding of Antarctica and the Southern Ocean...

 he made further visits to Australia's subantarctic islands and to Antarctica, subsequently publishing many papers on the biology of Antarctic and subantarctic seabirds. He also served as Review Editor for the Royal Australasian Ornithologists Union

Royal Australasian Ornithologists Union

The Royal Australasian Ornithologists Union, also known as Birds Australia, was founded in 1901 to promote the study and conservation of the native bird species of Australia and adjacent regions. This makes it Australia's oldest national birding association. It is also Australia's largest...

's journal Emu

Emu (journal)

Emu, subtitled Austral Ornithology, is the peer-reviewed scientific journal of the Royal Australasian Ornithologists Union. The journal was established in 1901 and is the oldest ornithological journal published in Australia...

.