Log in

Relevant bibliographies by topics / Rare plants – Western Australia – Southwestern / Journal articles

To see the other types of publications on this topic, follow the link: Rare plants – Western Australia – Southwestern.

Journal articles on the topic 'Rare plants – Western Australia – Southwestern'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 34 journal articles for your research on the topic 'Rare plants – Western Australia – Southwestern.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Catling, Paul M., and Gisèle Mitrow. "The Recent Spread and Potential Distribution of Phragmites australis subsp. australis in Canada." Canadian Field-Naturalist 125, no. 2 (April 1, 2011): 95. http://dx.doi.org/10.22621/cfn.v125i2.1187.

Full text

Abstract:

To provide information on geographic occurrence, rate of spread, and potential distribution of European Common Reed, Phragmites australis subsp. australis, in Canada, we measured 1740 herbarium specimens from 21 collections across Canada, entered the information into a database, and mapped and analyzed these records. The European subspecies australis was first documented in Canada 100 years before it was recognized as an alien invader. It was not until the invading plants had entered a phase of rapid local increase after 1990 that they attracted sufficient attention that a comparison of the in

APA, Harvard, Vancouver, ISO, and other styles

2

Crombie, DS, JT Tippett, and TC Hill. "Dawn Water Potential and Root Depth of Trees and Understorey Species in Southwestern Australia." Australian Journal of Botany 36, no. 6 (1988): 621. http://dx.doi.org/10.1071/bt9880621.

Full text

Abstract:

Water relations of selected tree and understorey species in the jarrah forest of south-western Australia were studied during summer drought and the results related to root morphology. Seasonal patterns of predawn water potential (Ψp) differed between species according to root depth and between sites according to average annual rainfall. Dawn water potentials fell most rapidly and by the greatest amount in plants with the shallowest roots. Dawn water potentials of medium and deep rooted species were not consistently different. Separation of Ψp between sites of different annual rainfall was less

APA, Harvard, Vancouver, ISO, and other styles

3

W. Arnold, G., M. Abensperg-Traun, R. J. Hobbs, D. E. Steven, L. Atkins, J. J. Viveen, and D. M. Gutter. "Recovery of shrubland communities on abandoned farmland in southwestern Australia: soils, plants, birds and arthropods." Pacific Conservation Biology 5, no. 3 (1999): 163. http://dx.doi.org/10.1071/pc990163.

Full text

Abstract:

Passive recovery of land formerly used for agricultural production may be an inexpensive and rapid method of ecosystem recovery, and may provide an alternative method to active revegetation. Passive recovery may also contribute to sustainable agriculture (soil salinity). For undisturbed and disturbed areas of the central wheatbelt of Western Australia, this paper reports the effects of farming history (clearing only, cultivation, duration of farming, and time since farming ceased) on the soil nutrient content, plant floristics (richness and composition) and structure, and the abundance, specie

APA, Harvard, Vancouver, ISO, and other styles

4

Kirby, GC, BA Barlow, and S. Habel. "Sex-Ratios in a Gynodioecious Plant Ptilotus obovatus (Gaudich) F-Muell (Amaranthaceae)." Australian Journal of Botany 35, no. 6 (1987): 679. http://dx.doi.org/10.1071/bt9870679.

Full text

Abstract:

Ptilotus obovatus is a gynodioecious perennial shrub with diploid and tetraploid cytotypes and is widespread in arid Australia. This study involved sex ratio counts in colonies of both cytotypes across much of the species range. Samples from diploid colonies had high frequencies of females (>55%) in Western Australia, low frequencies (<41%) in South Australia, and variable frequencies (36-77%) in southwestern Queensland. Tetraploid colonies had the opposite trend with low frequencies of females (<47%) in Western Australia and high frequencies (>54%) in the Northern Territory, South

APA, Harvard, Vancouver, ISO, and other styles

5

Downes, P. J., and A. W. R. Bevan. "Chrysoberyl, beryl and zincian spinel mineralization in granulite-facies Archaean rocks at Dowerin, Western Australia." Mineralogical Magazine 66, no. 6 (December 2002): 985–1002. http://dx.doi.org/10.1180/0026461026660072.

Full text

Abstract:

Abstract A deposit of chrysoberyl (BeAl2O4), including the variety alexandrite, occurs near Dowerin, in the southwestern region of the Archaean Yilgarn Craton, Western Australia. The deposit is situated in the northern part of the Lake Grace Terrain, a crustal component of the southwestern Yilgarn Craton, in granulite-facies gneisses (2640–2649 Ma; T = 700°C, P <6 kbar) adjacent to the margin of the Kellerberrin Batholith (2587±25 Ma). Beryllium mineralization at Dowerin occurs in plagioclase-quartz-biotite-garnet gneiss and cross-cutting tourmaline-plagioclase veins situated adjacent to le

APA, Harvard, Vancouver, ISO, and other styles

6

Lee, J. G. H., H. C. Finn, and M. C. Calver. "Ecology of black cockatoos at a mine-site in the eastern jarrah-marri forest, western Australia." Pacific Conservation Biology 19, no. 1 (2013): 76. http://dx.doi.org/10.1071/pc130076.

Full text

Abstract:

Three threatened black cockatoos inhabit the Jarrah Eucalyptus marginata-Marri Corymbia calophylla forest of southwestern Australia: Baudin’s Cockatoo Calyptorhynchus baudinii, Carnaby’s Cockatoo C. latirostris, and Forest Redtailed Black Cockatoo C. banksii naso [FRTBC]. Their local ecology in relation to anthropogenic disturbance is poorly known, hampering effective conservation management. Therefore we studied their group size, site occupancy patterns, habitat use, and food plants at a mine-site and its surrounds in the eastern forest over three years. FRTBC showed similar group sizes and o

APA, Harvard, Vancouver, ISO, and other styles

7

Kennedy, J., and G. Weste. "Vegetation Changes Associated With Invasion by Phytophthora cinnamomi on Monitored Sites in the Grampians, Western Australia." Australian Journal of Botany 34, no. 3 (1986): 251. http://dx.doi.org/10.1071/bt9860251.

Full text

Abstract:

The effects of invasion by Phytophthora cinnamomi were measured on sites representing the larger forest regions of the Grampians. Changes were obvious at first, with the death of more than 50% of the species including large plants such as Xanthorrhoea australis, but soon became dificult to detect as susceptible species were replaced by field-resistant graminoids. Reductions were assessed in species heterogeneity and plant density during 1976, at the onset of disease and from 1977 to 1984. Susceptible species disappeared from infested forest and no re-emergence was observed. Less-susceptible pl

APA, Harvard, Vancouver, ISO, and other styles

8

Touchell, DH, KW Dixon, and B. Tan. "Cryopreservation of Shoot-Tips of Grevillea scapigera (Proteaceae): a Rare and Endangered Plant From Western Australia." Australian Journal of Botany 40, no. 3 (1992): 305. http://dx.doi.org/10.1071/bt9920305.

Full text

Abstract:

Cryopreservation of leaf, petiole, stem pieces and shoot-tips was investigated as a means for long-term maintenance of germplasm of the rare and endangered species, Grevillea scapigera A.S. George. Crypreservation was only achieved using shoot-tips or axillary buds and a slow-cooling regime with the aid of an improvised freezing device. The highest survival of thawed explants (20%) was obtained with 4-week-old in vitro shoot-tips cultured for 48 h in a prefreezing liquid culture medium supplemented with 5% dimethylsulfoxide. The pretreated shoot-tips were frozen in a liquid medium containing 1

APA, Harvard, Vancouver, ISO, and other styles

9

Cox, Brad. "Granite Outcrops Symposium." Pacific Conservation Biology 4, no. 3 (1998): 271. http://dx.doi.org/10.1071/pc98271a.

Full text

Abstract:

Western Australia is a flat landscape. Granite outcrops are one of the few features that rise above the terrain. This makes them unique landmarks for people, and islands for plants and animals. They are highly significant in terms of their geological, biological and cultural values. They contain some of the world's oldest rocks, are an important source of water, often contain aboriginal heritage sites and are refuges for many rare and endangered flora and fauna.

APA, Harvard, Vancouver, ISO, and other styles

10

Pierce, Nuri B., and Michael G. Simpson. "Polyaperturate pollen types and ratios of heteromorphism in the monocot genus Conostylis (Haemodoraceae)." Australian Systematic Botany 22, no. 1 (2009): 16. http://dx.doi.org/10.1071/sb08040.

Full text

Abstract:

Pollen aperture heteromorphism (variation of aperture number in pollen grains within each flower and in all plants of a taxon) is described in the diverse monocot genus Conostylis R.Br. (Haemodoraceae) and that of related genera, all endemic to Western Australia. We report results of pollen observations from 153 specimens. In Conostylis, aperture number varies greatly, with biporate, triporate, tetraporate and polyporate pollen present, features considered rare and possibly developmentally significant for monocots. Pollen aperture types and their ratios in this genus are stable and consistent

APA, Harvard, Vancouver, ISO, and other styles

11

Miller, Ben P., David R. Symons, and Matthew D. Barrett. "Persistence of rare species depends on rare events: demography, fire response and phenology of two plant species endemic to a semiarid Banded Iron Formation range." Australian Journal of Botany 67, no. 3 (2019): 268. http://dx.doi.org/10.1071/bt18214.

Full text

Abstract:

The association of rare plant species and Banded Iron Formation (BIF) ranges in semiarid Western Australia is a noted phenomenon. These ranges are also a focus of iron ore exploration and mining. Decisions and planning required for development, conservation and management resulting from this interest, often consider translocation of these threatened species. Nonetheless, little is known about the ecology of BIF-endemic species to support any such decisions. We assessed population structure, patterns of growth, mortality, recruitment, reproduction and in situ seedbank persistence for two declar

APA, Harvard, Vancouver, ISO, and other styles

12

Ladd, P. G., C. J. Yates, R. Dillon, and R. Palmer. "Pollination ecology of Tetratheca species from isolated, arid habitats (Banded Iron Formations) in Western Australia." Australian Journal of Botany 67, no. 3 (2019): 248. http://dx.doi.org/10.1071/bt18249.

Full text

Abstract:

Pollination and reproductive ecology of arid zone species in Australia are neglected topics. This is particularly true of rare species, some of which are threatened by mining operations. The bee community at Windarling Range in southern Western Australia and the pollination ecology of four rare Tetratheca taxa with distributions restricted to Banded Iron Formation inselbergs in the arid south-west were examined in winter and spring to understand if pollination rate was affecting the reproductive ecology of the plants. The bee fauna on the Windarling Range was sampled using coloured pan traps a

APA, Harvard, Vancouver, ISO, and other styles

13

Watson, EM. "Cytoevolutionary Studies in the Genus Bulbine Wolf (Liliaceae) .II. The Australian Annual Taxa (Bulbine semibarbata s.1.)." Australian Journal of Botany 34, no. 5 (1986): 505. http://dx.doi.org/10.1071/bt9860505.

Full text

Abstract:

A cytological survey, using root tip mitotic cells and supplemented by some crosses and pollen fertility studies, was carried out on plants of 55 populations of the Australian annual Bulbine sernibarbata s.1. (Liliaceae). There are 4x, 8x and 12.x populations.The 4x forms are almost completely confined to eastern Australia and comprise populations of two kinds: (1) 28-chromosome types, corresponding in morphology to B. alata Baijnath, which to date has had limited taxonomic acceptance; (2) 26-chromosome types with the morphology of B. sernibarbata s. str. The alata form occurs in arid, the ser

APA, Harvard, Vancouver, ISO, and other styles

14

BAASANMUNKH, SHUKHERDORJ, BATLAI OYUNTSETSEG, CHULUUNKHUYAG OYUNDARI, KHURELPUREV OYUNDELGER, MAGSAR URGAMAL, DAVAAJAV DARIKHAND, NERGUI SONINKHISHIG, et al. "The vascular plant diversity of Dzungarian Gobi in western Mongolia, with an annotated checklist." Phytotaxa 501, no. 1 (May 19, 2021): 1–55. http://dx.doi.org/10.11646/phytotaxa.501.1.1.

Full text

Abstract:

The Dzungarian Gobi (DzG), one of 16 phytogeographical regions in the country, is located in the southwestern part of Khovd province in western Mongolia. It comprises some of Mongolia’s largest reserves, namely the Great Gobi B Strictly Protected Area and the National Park Bulgan gol-Ikh Ongog. We conducted a comprehensive survey of the area’s floristic diversity between 2009 and 2019 by collecting vascular plants from different vegetation types in various seasons. In addition, we critically checked relevant published literature and material from the herbaria ALTB, GLM, GWF, HAL, KHU, LE, MW,

APA, Harvard, Vancouver, ISO, and other styles

15

Bunn, Eric, and Kingsley W. Dixon. "In Vitro Propagation of the Rare and Endangered Grevillea scapigera (Proteaceae)." HortScience 27, no. 3 (March 1992): 261–62. http://dx.doi.org/10.21273/hortsci.27.3.261.

Full text

Abstract:

Micropropagation, including adventitious shoot growth from leaf sections, was achieved for Grevillea scapigera (Proteaceae), a rare and endangered species from Western Australia. Shoot tips were initiated on filter paper supports with liquid WPM (Woody Plant Medium) and supplemented with 20 μm zeatin riboside and 2 μm GA3. Shoots were then incubated on WPM solidified with agar and supplemented with 5 μm kinetin and 0.5 μm BA, which produced an approximate 6-fold multiplication rate per month. Up to three adventitious shoots were induced from 0.7-cm2 leaf sections after 6 to 7 weeks on solid 1/

APA, Harvard, Vancouver, ISO, and other styles

16

McDougall, K. L., R. J. Hobbs, and G. E. St Hardy. "Vegetation of Phytophthora cinnamomi-infested and adjoining uninfested sites in the northern jarrah (Eucalyptus marginata) forest of Western Australia." Australian Journal of Botany 50, no. 3 (2002): 277. http://dx.doi.org/10.1071/bt01096.

Full text

Abstract:

The vegetation of seven sites in the northern jarrah forest of Western Australia infested with Phytophthora cinnamomi was recorded and compared with adjoining vegetation. The number of species per quadrat was found to be the same in vegetation affected by P. cinnamomi as in healthy vegetation, although there were more species overall in affected vegetation. Vegetation of uninfested sites had a higher cover and more species per quadrat of trees and shrubs and lower cover and fewer species per quadrat of annual plants than vegetation of infested sites. Although many species that are known to be

APA, Harvard, Vancouver, ISO, and other styles

17

Macphail, Michael K., and Robert S. Hill. "What was the vegetation in northwest Australia during the Paleogene, 66–23million years ago?" Australian Journal of Botany 66, no. 7 (2018): 556. http://dx.doi.org/10.1071/bt18143.

Full text

Abstract:

Fossil pollen and spores preserved in drillcore from both the upper South Alligator River (SARV) in the Kakadu National Park, Northern Territory and the North-West Shelf, Western Australia provide the first record of plants and plant communities occupying the coast and adjacent hinterland in north-west Australia during the Paleogene 66 to 23million years ago. The palynologically-dominant woody taxon is Casuarinaceae, a family now comprising four genera of evergreen scleromorphic shrubs and trees native to Australia, New Guinea, South-east Asia and Pacific Islands. Rare taxa include genera now

APA, Harvard, Vancouver, ISO, and other styles

18

Rossiter, RC, and WJ Collins. "Genetic diversity in Old Subterranean Clover (Trifolium subterraneum L.) Populations in Western Australia. I. Pastures sown initially to the Dwalganup strain." Australian Journal of Agricultural Research 39, no. 6 (1988): 1051. http://dx.doi.org/10.1071/ar9881051.

Full text

Abstract:

Subterranean clover burrs were collected during summer from 28 sites, 10 of which were in the <500 mm annual rainfall zone. All sites had been sown to the Dwalganup strain, 30-50 years ago. Spaced plants were grown from seed from burr subsamples of each population. Several morphological characters, flowering dates, and oestrogenic isoflavones in late spring leaf samples were determined. At maturity, burr samples were collected from each plant, and the isozyme patterns in seeds were determined for eight enzyme systems using starch gel electrophoresis. Populations from the lower rainfall (&lt

APA, Harvard, Vancouver, ISO, and other styles

19

Krauss, Siegfried L., and Janet Anthony. "Genetic impacts of habitat loss on the rare Banded Ironstone Formation endemic Ricinocarpos brevis (Euphorbiaceae)." Australian Journal of Botany 67, no. 3 (2019): 183. http://dx.doi.org/10.1071/bt18131.

Full text

Abstract:

Ricinocarpos brevis (Euphorbiaceae) is a declared rare species currently known from only three Banded Ironstone Formation (BIF) ranges (Perrinvale, Johnston and Windarling Ranges) in the Yilgarn region of Western Australia. The present study assessed the potential impact of proposed mining on genetic diversity within R. brevis. Approximately 30 plants were sampled from each of 14 sites across the known distribution of R. brevis. Genetic variation and its spatial structure was assessed with 144 polymorphic AFLP markers that were generated by two independent primer pairs: M-CTG/P-AC (81 markers)

APA, Harvard, Vancouver, ISO, and other styles

20

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.

Full text

Abstract:

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–

APA, Harvard, Vancouver, ISO, and other styles

21

Sinclair, Elizabeth, Belinda Cheetham, Siegfried Krauss, and Richard Hobbs. "Morphological and molecular variation in Conospermum triplinervium (Proteaceae), the tree smokebush: implications for bushland restoration." Australian Journal of Botany 56, no. 5 (2008): 451. http://dx.doi.org/10.1071/bt07137.

Full text

Abstract:

Ecological restoration benefits from information on population genetic structure and variation within a species to make informed decisions on where to source material of the local genetic provenance. Conospermum triplinervium is extremely rare in Bold Park, a large bushland remnant currently undergoing restoration in Perth, Western Australia. We sampled plants from Bold Park and six other native populations across the northern half of the species’ range to assess patterns of morphological and genetic variation. There was considerable variation across six leaf measures with significant differen

APA, Harvard, Vancouver, ISO, and other styles

22

Yates, Colin J., Philip G. Ladd, David J. Coates, and Shelley McArthur. "Hierarchies of cause: understanding rarity in an endemic shrub Verticordia staminosa (Myrtaceae) with a highly restricted distribution." Australian Journal of Botany 55, no. 3 (2007): 194. http://dx.doi.org/10.1071/bt06032.

Full text

Abstract:

Verticordia staminosa C.Gardner & A.C.George subsp. staminosa is an extremely rare shrub occurring as an isolated population of ~1200 plants on a granite outcrop in the semi-arid agricultural region of Western Australia, separated from its closest relative V. staminosa subsp. cylindracea by 400 km. We aimed to determine a hierarchy of causes for explaining the extremely restricted distribution of subsp. staminosa, and to determine the genetic relationships among populations within both subspecies. We measured allozyme variation in all known populations of the two subspecies. There were exc

APA, Harvard, Vancouver, ISO, and other styles

23

Tremblay, Raymond L., Maria-Eglée Perez, Matthew Larcombe, Andrew Brown, Joe Quarmby, Doug Bickerton, Garry French, and Andrew Bould. "Dormancy in Caladenia: a Bayesian approach to evaluating latency." Australian Journal of Botany 57, no. 4 (2009): 340. http://dx.doi.org/10.1071/bt08163.

Full text

Abstract:

Dormancy is common in many terrestrial orchids in southern Australia and other temperate environments. The difficulty for conservation and management when considering dormancy is ascertaining whether non-emergent plants are dormant or dead. Here we use a multi-state capture–recapture method, undertaken over several seasons, to determine the likelihood of a plant becoming dormant or dying following its annual emergent period and evaluate the frequency of the length of dormancy. We assess the transition probabilities from time series of varying lengths for the following nine terrestrial orchids

APA, Harvard, Vancouver, ISO, and other styles

24

Ohlsen, Daniel J., Leon R. Perrie, Lara D. Shepherd, and Michael J. Bayly. "Taxonomic status and distribution of the critically endangered Christmas Island spleenwort (Asplenium listeri, Aspleniaceae): it is not as rare as we thought." Australian Systematic Botany 27, no. 6 (2014): 372. http://dx.doi.org/10.1071/sb14047.

Full text

Abstract:

Asplenium listeri C.Chr. has been considered endemic to Christmas Island and is one of only two fern species listed as Critically Endangered under Australia’s Environment Protection and Biodiversity Conservation Act. Its status as a distinct species has been questioned because of morphological similarity to the widespread A. polyodon G.Forst., which also occurs on Christmas Island. Molecular analyses revealed that A. listeri and plants attributed to A. polyodon from coastal limestone in New Caledonia and Vanuatu share the same rbcL, trnL–trnF and rps4–trnS haplotype and that other samples of A

APA, Harvard, Vancouver, ISO, and other styles

25

Vincent, Brian J., Sarah Barrett, Anne Cochrane, and Michael Renton. "Germination characteristics and the relationship between population structure, soil seed bank density and fire response in the rare endemic Stachystemon vinosus (Halford & R.J.F.Hend.) (Euphorbiaceae) from southern Western Australia." Seed Science Research 29, no. 2 (June 2019): 124–34. http://dx.doi.org/10.1017/s0960258519000126.

Full text

Abstract:

AbstractThe regeneration niche defines the specific environmental requirements of the early phases of a plant's life cycle. It is critical for the long-term persistence of plant populations, particularly for obligate seeders that are highly vulnerable to stochastic events in fire-prone ecosystems. Here, we assessed germination characteristics and the relationship between population structure, soil seed bank density and fire response in Stachystemon vinosus (Euphorbiaceae), a rare endemic shrub from Western Australia, from burnt and long unburnt habitats. Many plants in long unburnt habitat wer

APA, Harvard, Vancouver, ISO, and other styles

26

E. Twigg, Laurie, Tim J. Lowe, and Gary R. Martin. "The presence and implications of viable seed in the faeces of invasive free-ranging European Rabbits and Red Foxes." Pacific Conservation Biology 15, no. 3 (2009): 158. http://dx.doi.org/10.1071/pc090158.

Full text

Abstract:

Invasion by weeds and other undesirable plants threatens global biodiversity. However, the role of mammals in maintaining and spreading weeds is often overlooked. Here we confirm that two widely distributed and abundant Australian mammalian pests, the European Rabbit (Oryctolagus cuniculus) and the Red Fox (Vulpes vulpes), can spread viable seed. Our assessment mainly involved determining the number and viability of seeds recovered from faeces of free-ranging individuals inhabiting several areas within the Mediterranean region of south-western Australia, an internationally recognized biodivers

APA, Harvard, Vancouver, ISO, and other styles

27

Dugas, Daniel P., and Gregory J. Retallack. "Middle Miocene fossil grasses from Fort Ternan, Kenya." Journal of Paleontology 67, no. 1 (January 1993): 113–28. http://dx.doi.org/10.1017/s0022336000021223.

Full text

Abstract:

At the well-known fossil mammal locality of Fort Ternan in southwestern Kenya, radiometrically dated at about 14 million years old (middle Miocene), fossil grasses have been preserved by nephelinitic sandstone in place of growth above a brown paleosol (type Onuria clay). Large portions of grass plants as well as fragments of leaves have revealed details of silica bodies, stomates, and other taxonomically important features under the scanning electron microscope. The computer database for grass identification compiled by Leslie Watson and colleagues was used to determine the most similar living

APA, Harvard, Vancouver, ISO, and other styles

28

Jones, BA, RA How, and DJ Kitchener. "A field study of Pseudocheirus occidentalis (Marsupialia : Petauridae) I. Distribution and Habitat." Wildlife Research 21, no. 2 (1994): 175. http://dx.doi.org/10.1071/wr9940175.

Full text

Abstract:

Surveys aimed at determining the distribution and habitat of the rare and endangered western ringtail possum (Pseudocheirus occidentalis) were undertaken in south-western Australia during 1990-92. Surveys relied on sightings of animals, or their characteristic faecal pellets or dreys. Habitat descriptions were collected in areas occupied by P. occidentalis to describe the vegetation and topography. Additional information about habitat was collected at subsets of sites to reflect leaf nutrient levels (nitrogen, phosphorus and potassium) of the major food plants, and to reflect the relative sene

APA, Harvard, Vancouver, ISO, and other styles

29

Krauss, Siegfried L., and Janet M. Anthony. "The potential impact of mining on population genetic variation in the Banded Ironstone Formation endemic Tetratheca erubescens (Elaeocarpaceae)." Australian Journal of Botany 67, no. 3 (2019): 172. http://dx.doi.org/10.1071/bt18054.

Full text

Abstract:

Tetratheca erubescens is a narrowly endemic species including ~6300 plants restricted to a 2-km2 distribution on the south Koolyanobbing Range Banded Ironstone Formation (BIF) in Western Australia. A key objective of the present study was to characterise population genetic variation, and its spatial structuring across the entire distribution of T. erubescens, to enable a quantification of genetic variation that may be affected by proposed mining of the BIF. In total, 436 plants (~30 at each of 14 sites) from across the entire distribution were sampled, genotyped and scored for allelic variatio

APA, Harvard, Vancouver, ISO, and other styles

30

Jones, BA, RA How, and DJ Kitchener. "A field study of Pseudocheirus occidentalis (Marsupialia : Petauridae) II. Population studies." Wildlife Research 21, no. 2 (1994): 189. http://dx.doi.org/10.1071/wr9940189.

Full text

Abstract:

Field studies of the rare and endangered western ringtail possum (Pseudocheirus occidentalis) were undertaken at five main sites in south-western Australia. Population studies employing capture-markrelease and telemetry methods were concentrated at Abba River and Locke Estate, near Busselton, and supplementary telemetry records were obtained for three females at Yendicup, Perup, near Manjimup. The location of dreys and sightings were mapped at Geographe Bay (near Busselton) and Emu Point (Albany). Mature adults of both sexes weighed about 1000 g and attained maturity at 830-900 g. Young were e

APA, Harvard, Vancouver, ISO, and other styles

31

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

32

Lamont, Byron B., Neal J. Enright, E. T. F. Witkowski, and J. Groeneveld. "Conservation biology of banksias: insights from natural history to simulation modelling." Australian Journal of Botany 55, no. 3 (2007): 280. http://dx.doi.org/10.1071/bt06024.

Full text

Abstract:

We have studied the ecology and conservation requirements of Banksia species in the species-rich sandplains of south-western Australia for 25 years. Loss of habitat through land-clearing has had the greatest impact on their conservation status over the last 50 years. Ascertaining optimal conditions for conservation management in bushland requires detailed knowledge of the species under consideration, including demographic attributes, fire regime, growing conditions and interactions with other species. Where populations have been fragmented, seed production per plant has also fallen. The group

APA, Harvard, Vancouver, ISO, and other styles

33

Lamont, Byron B., Roy Wittkuhn, and Dylan Korczynskyj. "Ecology and ecophysiology of grasstrees." Australian Journal of Botany 52, no. 5 (2004): 561. http://dx.doi.org/10.1071/bt03127.

Full text

Abstract:

‘Xanthorrhoea…is in habit one of the most remarkable genera of Terra Australis, and gives a peculiar character to the vegetation of that part of the country where it abounds’ Robert Brown (1814). Grasstrees (arborescent Xanthorrhoea, Dasypogon, Kingia), with their crown of long narrow leaves and blackened leafbase-covered trunk (caudex), are a characteristic growth form in the Australian flora. Xanthorrhoea is the most widespread genus, with 28 species that are prominent from heathlands to sclerophyll forests. While leaf production for X. preissii reaches a peak in spring–summer, growth never

APA, Harvard, Vancouver, ISO, and other styles

34

Pretorius, Z. A., and C. M. Bender. "First Report of Virulence for the Wheat Leaf Rust (Puccinia triticina) Resistance Gene Lr32 in South Africa." Plant Disease 94, no. 3 (March 2010): 381. http://dx.doi.org/10.1094/pdis-94-3-0381a.

Full text

Abstract:

The wheat leaf rust resistance gene Lr32 was transferred from Aegilops tauschii Coss. to bread wheat (Triticum aestivum L.) (1). Despite virulence for Lr32 in some isolates from Bulgaria, Israel, and Turkey, the gene has been reported to be effective in Australia, Mexico, the United States, and South Africa (1,2). A leaf rust isolate that differed in its avirulence/virulence profile from previously recorded races of Puccinia triticina Eriks. in South Africa was collected from triticale (× Triticosecale) in the Western Cape in 2005. According to the South African leaf rust differential set (3),

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!