Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Heard and McDonald Islands' has mentioned 'Plant' in the following places:
Occurrence Sentence Text Source
In this cold climate plant life is mainly limited to grasses, lichens, and mosses.
[23] Low plant diversity reflects the islandsxe2x80x99 isolation, small size, severe climate, the short, cool growing season and, for Heard Island, substantial permanent ice cover.
Areas available for plant colonisation on Heard Island are generally the result of retreating glaciers or new ice-free land created by lava flows.
Fellfield describes vegetation with abundant bare ground and less than 50% plant cover.
[citation needed] The consequent increase in habitat available for plant colonisation, plus the coalescing of previously discrete ice-free areas, has led to marked changes in the vegetation of Heard Island in the last 20 years or so.
Some plant species are spreading and modifying the structure and composition of communities, some of which are also increasing in distribution.
One plant species on Heard Island, Poa annua, a cosmopolitan grass native to Europe, was possibly introduced by humans, though is more likely to have arrived naturally, probably by skuas from the Kerguelen Islands where it is widespread.
The potential for introducing plant species (including invasive species not previously found on subantarctic islands) by both natural and human-induced means is high.
During the 2003/04 summer a new plant species, Cotula plumosa, was recorded.
These intact ecosystems provide opportunities for ecological research investigating population dynamics and interactions of plant and animal species, as well as monitoring the health and stability of the larger southern oceans ecosystem.