Matches in SemOpenAlex for { <https://semopenalex.org/work/W1481421093> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W1481421093 abstract "The long history of disturbance by human activities on Tasmania's Central Plateau has resulted in some of the most eroded alpine and subalpine country in Australia. Although the rate of vegetation and soil loss has declined following the introduction of myxomatosis, prohibition of burning, and the exclusion of stock grazing within the Tasmanian Wilderness World Heritage Area, recovery has been relatively slow, and erosion continues to occur. This study examined some of the current biotic and abiotic parameters affecting plant regeneration in alpine vegetation in the Central Plateau region. Seed traps were used to assess the availability of seed for regeneration in different microhabitats. There were significant seasonal and locality differences in seed density and species richness. A total of 14 to 24 seed taxa per site were trapped over a 14 month period. Average seed densities per month ranged from 5 to 3,090 seeds m(^{-2}). In general, bare microhabitats captured similar numbers of seeds and taxa to those trapped in existing vegetation clumps, at the edges of prostrate Grevillea australis, and directly underneath this shrub. Germination trials of a variety of species showed high germinability under wide temperature regimes, indicating the potential for recruitment throughout much of the year. In addition, pitfall trapping found little evidence of invertebrate taxa associated with post dispersal seed harvesting in the area, but potential predation by small mammals and birds cannot be excluded.Some aspects of microclimate in eroded bare patches and under G. australis were also recorded. This native shrub species appears to play an important role in ameliorating the microenvironment for seedling establishment due to its prostrate habit, which limits levels of excessive solar radiation, velocity of desiccating wind gusts, and the extent of frost heave activity. Consequently, numbers of seedlings were significantly higher under Grevillea shrubs than in open patches throughout the year, despite seed arrival being similar. The frequency of freeze-thaw cycles, minimum soil surface temperature and relative humidity however, were not detectably different between. open and Grevillea microhabitats, while jute matting and Orites acicularis slash were effective in increasing minimum soil surface temperatures and relative humidity, and reducing freeze-thaw and frost heave activity compared to bare areas. Unexpected microclimatic readings could be attributed to the highly heterogeneous nature of the microhabitats. This baseline data will improve our understanding of the processes and requirements for regeneration in highland areas and contribute to effective conservation and ecosystem management." @default.
- W1481421093 created "2016-06-24" @default.
- W1481421093 creator A5084705042 @default.
- W1481421093 date "2007-01-01" @default.
- W1481421093 modified "2023-09-23" @default.
- W1481421093 title "Limits to plant regeneration in alpine vegetation on Tasmania's central plateau" @default.
- W1481421093 hasPublicationYear "2007" @default.
- W1481421093 type Work @default.
- W1481421093 sameAs 1481421093 @default.
- W1481421093 citedByCount "0" @default.
- W1481421093 crossrefType "dissertation" @default.
- W1481421093 hasAuthorship W1481421093A5084705042 @default.
- W1481421093 hasConcept C132215390 @default.
- W1481421093 hasConcept C142724271 @default.
- W1481421093 hasConcept C144024400 @default.
- W1481421093 hasConcept C149923435 @default.
- W1481421093 hasConcept C184932067 @default.
- W1481421093 hasConcept C185933670 @default.
- W1481421093 hasConcept C188382862 @default.
- W1481421093 hasConcept C18903297 @default.
- W1481421093 hasConcept C2776133958 @default.
- W1481421093 hasConcept C2778091200 @default.
- W1481421093 hasConcept C2908647359 @default.
- W1481421093 hasConcept C30787403 @default.
- W1481421093 hasConcept C32957820 @default.
- W1481421093 hasConcept C47559259 @default.
- W1481421093 hasConcept C53565203 @default.
- W1481421093 hasConcept C71924100 @default.
- W1481421093 hasConcept C86803240 @default.
- W1481421093 hasConceptScore W1481421093C132215390 @default.
- W1481421093 hasConceptScore W1481421093C142724271 @default.
- W1481421093 hasConceptScore W1481421093C144024400 @default.
- W1481421093 hasConceptScore W1481421093C149923435 @default.
- W1481421093 hasConceptScore W1481421093C184932067 @default.
- W1481421093 hasConceptScore W1481421093C185933670 @default.
- W1481421093 hasConceptScore W1481421093C188382862 @default.
- W1481421093 hasConceptScore W1481421093C18903297 @default.
- W1481421093 hasConceptScore W1481421093C2776133958 @default.
- W1481421093 hasConceptScore W1481421093C2778091200 @default.
- W1481421093 hasConceptScore W1481421093C2908647359 @default.
- W1481421093 hasConceptScore W1481421093C30787403 @default.
- W1481421093 hasConceptScore W1481421093C32957820 @default.
- W1481421093 hasConceptScore W1481421093C47559259 @default.
- W1481421093 hasConceptScore W1481421093C53565203 @default.
- W1481421093 hasConceptScore W1481421093C71924100 @default.
- W1481421093 hasConceptScore W1481421093C86803240 @default.
- W1481421093 hasLocation W14814210931 @default.
- W1481421093 hasOpenAccess W1481421093 @default.
- W1481421093 hasPrimaryLocation W14814210931 @default.
- W1481421093 hasRelatedWork W131862264 @default.
- W1481421093 hasRelatedWork W1414188667 @default.
- W1481421093 hasRelatedWork W1856574774 @default.
- W1481421093 hasRelatedWork W1998605022 @default.
- W1481421093 hasRelatedWork W2018705497 @default.
- W1481421093 hasRelatedWork W2034691900 @default.
- W1481421093 hasRelatedWork W2043185842 @default.
- W1481421093 hasRelatedWork W2064596387 @default.
- W1481421093 hasRelatedWork W2081434357 @default.
- W1481421093 hasRelatedWork W2083062406 @default.
- W1481421093 hasRelatedWork W2101427516 @default.
- W1481421093 hasRelatedWork W2127402335 @default.
- W1481421093 hasRelatedWork W2147362400 @default.
- W1481421093 hasRelatedWork W2157474043 @default.
- W1481421093 hasRelatedWork W2954596838 @default.
- W1481421093 hasRelatedWork W2988058346 @default.
- W1481421093 hasRelatedWork W318222881 @default.
- W1481421093 hasRelatedWork W91795235 @default.
- W1481421093 hasRelatedWork W2187083030 @default.
- W1481421093 hasRelatedWork W2582416214 @default.
- W1481421093 isParatext "false" @default.
- W1481421093 isRetracted "false" @default.
- W1481421093 magId "1481421093" @default.
- W1481421093 workType "dissertation" @default.