Literatura académica sobre el tema "Orchids – Western Australia"

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Artículos de revistas sobre el tema "Orchids – Western Australia"

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DIXON, KINGSLEY W., and MAARTEN J. M. CHRISTENHUSZ. "Flowering in darkness: a new species of subterranean orchid Rhizanthella (Orchidaceae; Orchidoideae; Diurideae) from Western Australia." Phytotaxa 334, no. 1 (January 12, 2018): 75. http://dx.doi.org/10.11646/phytotaxa.334.1.12.

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Few plants are so cryptic as the underground orchids, Rhizanthella Rogers (1928: 1), of Australia. Unlike the species on the eastern seaboard of Australia, the Western Australian species spend their entire life cycle, including flowering, below the soil surface (only rarely with the tips of the bracts showing), making them unique among orchids and indeed, among flowering plants generally (Brown et al. 2013). Discovery in 1928 of the first underground orchid in Western Australia was an international sensation where the plant was described as ‘a remarkable subterranean orchid’ (Wilson 1929). The
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Dressler, Robert L. "Orchids of Western Australia." Systematic Botany 34, no. 3 (July 1, 2009): 611. http://dx.doi.org/10.1600/036364409789271137.

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Grant, Carl D., and John Koch. "Orchid species succession in rehabilitated bauxite mines in Western Australia." Australian Journal of Botany 51, no. 4 (2003): 453. http://dx.doi.org/10.1071/bt02127.

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Twenty-three orchid species were recorded in Alcoa's permanent vegetation-monitoring plots in unmined and rehabilitated jarrah forest. Of these, 22 were identified in the unmined jarrah forest and 20 were recorded in rehabilitated areas of between 1 and 31 years old. Three species (Cyrtostylis ovata, Lyperanthus serratus and Prasophyllum elatum) were only recorded in the unmined forest and one species was only recorded in rehabilitated areas (Diuris carinata). The overall density of native orchids in the forest was 13 755 plants ha–1, 10 times greater than the density in rehabilitated areas (1
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4

Parsons, R. F., and Stephen D. Hopper. "Monocotyledonous geophytes: comparison of south-western Australia with other areas of mediterranean climate." Australian Journal of Botany 51, no. 2 (2003): 129. http://dx.doi.org/10.1071/bt02067.

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Recent data on monocotyledonous geophytes from south-western Australia are compiled and compared with those from other areas of mainly mediterranean climate, especially California, Chile and Victoria, Australia. South-western Australia has a high monocot geophyte diversity of 496 species (7% of an estimated native flora of 7100 vascular species), like Victoria (12%) and the Cape region (14%). As in Victoria, orchids are by far the most important group, with c. 400 species, including those likely to be described once ongoing taxonomic research is completed. South-western Australia has higher ge
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5

Brundrett, Mark C. "Scientific approaches to Australian temperate terrestrial orchid conservation." Australian Journal of Botany 55, no. 3 (2007): 293. http://dx.doi.org/10.1071/bt06131.

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This review summarises scientific knowledge concerning the mycorrhizal associations, pollination, demographics, genetics and evolution of Australian terrestrial orchids relevant to conservation. The orchid family is highly diverse in Western Australia (WA), with over 400 recognised taxa of which 76 are Declared Rare or Priority Flora. Major threats to rare orchids in WA include habitat loss, salinity, feral animals and drought. These threats require science-based recovery actions resulting from collaborations between universities, government agencies and community groups. Fungal identification
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Brundrett, Mark C. "Using vital statistics and core-habitat maps to manage critically endangered orchids in the Western Australian wheatbelt." Australian Journal of Botany 64, no. 1 (2016): 51. http://dx.doi.org/10.1071/bt15087.

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Vital-statistics data concerning population viability were gathered for four of the rarest orchids in Western Australia using surveys to define population sizes and habitat areas and annual measurements of plant demographics. These orchids were Caladenia melanema, C. graniticola, C. williamsiae and Drakaea isolata from the wheatbelt of Western Australia. This agricultural area has a Mediterranean climate with unreliable rainfall, and is >80% cleared of native vegetation. Surveys with 10–30 volunteers increased population-size estimates by up to 10 times and provided spatial data to define c
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Brundrett, Mark C. "A Comprehensive Study of Orchid Seed Production Relative to Pollination Traits, Plant Density and Climate in an Urban Reserve in Western Australia." Diversity 11, no. 8 (July 26, 2019): 123. http://dx.doi.org/10.3390/d11080123.

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The pollination of 20 common terrestrial orchids was studied in a 60-ha urban banksia and eucalypt dominated woodland in Western Australia. Five years of data (24,000 flowers, 6800 plants) measured fruit set relative to floral areas, capsule volumes, climate, phenology, pollination mechanisms, disturbance tolerance and demography. Pollination varied from 0–95% of flowers, floral displays from 90–3300 mm2 and capsules from 15–1300 mm3 per spike. Pollination traits strongly influenced outcomes, with self-pollination highest (59—95%), followed by sexually deceptive autumn or winter-flowering (18–
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8

Parsons, R. F. "Monocotyledonous geophytes: comparison of California with Victoria, Australia." Australian Journal of Botany 48, no. 1 (2000): 39. http://dx.doi.org/10.1071/bt98056.

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Data on monocotyledonous geophytes from a recent Victorian flora are compiled and compared with those from California and some other areas of mainly mediterranean climate. Victoria's monocot geophyte diversity of 9% places it with parts of South Africa and Western Australia in a group of much higher diversity than California and Chile. The Victorian list is dominated by orchids (all with tuberous roots) and that from California by Alliaceae, Calochortaceae and Liliaceae, with bulbs being the predominant storage organ. Only four families of the 17 involved have native species in both
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Collins, Margaret, Mark Brundrett, John Koch, and Krishnapillai Sivasithamparam. "Colonisation of jarrah forest bauxite-mine rehabilitation areas by orchid mycorrhizal fungi." Australian Journal of Botany 55, no. 6 (2007): 653. http://dx.doi.org/10.1071/bt06170.

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Orchids require mycorrhizal fungi for germination of seed and growth of seedlings. The colonisation of bauxite-mine rehabilitation areas by orchids is therefore dependent on the availability of both seed and mycorrhizal fungi. Orchid mycorrhizal fungi baiting trials were carried out in rehabilitation areas that were 1, 10 and 26 years old (established in 2001, 1992 and 1976) and adjacent unmined jarrah forest areas at Jarrahdale, Western Australia. Fungal baits consisted of buried six-chambered nylon-mesh packets containing seed of six jarrah forest orchid taxa, Caladenia flava subsp. flava R.
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10

Nikabadi, Shahab, Eric Bunn, Jason Stevens, Belinda Newman, Shane R. Turner, and Kingsley W. Dixon. "Germination responses of four native terrestrial orchids from south-west Western Australia to temperature and light treatments." Plant Cell, Tissue and Organ Culture (PCTOC) 118, no. 3 (May 18, 2014): 559–69. http://dx.doi.org/10.1007/s11240-014-0507-3.

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Tesis sobre el tema "Orchids – Western Australia"

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Swarts, Nigel. "Integrated conservation of the rare and endangered terrestrial orchid Caladenia huegelii H.G. Reichb." University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0044.

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The Orchidaceae is characterized by a remarkably diverse range of life forms and some of the most highly specialized interactions with soil fungi and insect pollinators found in the flowering plants. Many species are rare or threatened with extinction either directly through loss of habitat or over-collection or, indirectly through debilitation or loss of mycorrhizal association or pollinator capacity. Australian temperate terrestrial orchids represent one of the most threatened groups in the Australian flora with many taxa clinging to existence in urban and rural bushland remnants, road verge
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2

Collins, Margaret Thora. "Factors affecting the recovery of orchids in a post-mining landscape." University of Western Australia. School of Earth and Geographical Sciences, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0022.

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[Truncated abstract] Currently, Alcoa World Alumina Australia (Alcoa) mines and undertakes procedures to rehabilitate approximately 550 ha of jarrah forest each year at two open-cut bauxite mines in South-West Western Australia. Alcoa aims to establish a self-sustaining jarrah forest ecosystem that maintains the functions of the landscape prior to mining, including biodiversity, on areas that have been mined for bauxite. Indigenous terrestrial orchids form a significant proportion of the indigenous geophytic plant species that either fail to colonise rehabilitated areas or do so very slowly. T
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Mursidawati, Sofi. "Mycorrhizal association, propagation and conservation of the myco-heterotrophic orchid Rhizanthella gardneri." University of Western Australia. School of Earth and Geographical Sciences, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0014.

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Many orchids require mycorrhizal symbioses with fungi for their development and survival. Rhizanthella gardneri the Western Australian underground orchid is associated with the companion plant Melaleuca uncinata and its ectomycorrhizal fungus symbiont. Much less is known about the habitat requirements of its sister species, R. slateri, which occurs in Eastern Australia. The absence of chlorophyll from Rhizanthella gardneri and R. slateri results in total dependency on associations with fungal symbionts. Many ecological and biological aspects of these fascinating orchids remained poorly known,
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4

Hollick, Penelope Sarah. "Mycorrhizal specificity in endemic Western Australian terrestrial orchids (tribe Diurideae) : implications for conservation /." Hollick, Penelope Sarah (2004) Mycorrhizal specificity in endemic Western Australian terrestrial orchids (tribe Diurideae): implications for conservation. PhD thesis, Murdoch University, 2004. http://researchrepository.murdoch.edu.au/103/.

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The specificity of fungal isolates from endemic Western Australian orchid species and hybrids in the tribe Diurideae was investigated using symbiotic seed germination and analysis of the fungal DNA by amplified fragment length polymorphism (AFLP). The distribution of the fungal isolates in the field was also assessed using two different seed baiting techniques. The information from these investigations is essential for developing protocols for reintroduction and translocation of orchid species. Two groups of orchids in the tribe Diurideae were studied. Firstly, a number of Caladenia sp
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5

au, Hollick@central murdoch edu, and Penelope Sarah Hollick. "Mycorrhizal specificity in endemic Western Australian terrestrial orchids (tribe Diurideae): Implications for conservation." Murdoch University, 2004. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20050310.91859.

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The specificity of fungal isolates from endemic Western Australian orchid species and hybrids in the tribe Diurideae was investigated using symbiotic seed germination and analysis of the fungal DNA by amplified fragment length polymorphism (AFLP). The distribution of the fungal isolates in the field was also assessed using two different seed baiting techniques. The information from these investigations is essential for developing protocols for reintroduction and translocation of orchid species. Two groups of orchids in the tribe Diurideae were studied. Firstly, a number of Caladenia spec
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6

Bougoure, Jeremy J. "The role of mycorrhizal fungi in nutrient supply and habitat specificity of the rare mycoheterotrophic underground orchid, Rhizanthella gardneri." University of Western Australia. School of Plant Biology, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0076.

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Rhizanthella gardneri (Rogers) is a critically endangered orchid restricted to two isolated regions of south-western Australia. Rhizanthella gardneri is an entirely subterranean mycoheterotrophic species that purportedly forms a tripartite relationship with a mycorrhizal fungus (Ceratobasidiales) that links with an autotrophic shrub of the Melaleuca uncinata complex to acquire nutrients. Whether the rarity of R. gardneri is intrinsic is overshadowed by the recent effect of extrinsic factors that means R. gardneri requires some form of conservation and may also be a viable candidate for restora
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Libros sobre el tema "Orchids – Western Australia"

1

Collins, Margaret, Kingsley Dixon, and Bevan Buirchell. Orchids of Western Australia. Amer Orchid Society, 1989.

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2

1951-, Brown Andrew, ed. Orchids of Western Australia. Crawley, Western Australia: University of Western Australia Press, 2008.

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