Revision of Acacia tumida (Leguminoseae: Mimosoideae) and close allies, including the description of three rare taxa

2003 ◽  
Vol 16 (2) ◽  
pp. 139 ◽  
Author(s):  
M. W. McDonald
Keyword(s):  
Genetic Variation ◽  
New Taxa ◽  
Western Australia ◽  
Morphological Variability ◽  
Present Knowledge ◽  
Rare Taxa ◽  
North Western

Acacia tumida F.Muell ex. Benth. is a wide-ranging species in north-western Australia, with high morphological variability. Overseas it is cultivated for firewood, windbreaks and sand stabilisation. To assist in its domestication, the taxonomy of A. tumida is revised and its close allies, A. difficilis Maiden and A. retinervis Benth., circumscribed. The following six new taxa in the A. tumida group are described: A. areolata M.W.McDonald, A.�dissimilis M.W.McDonald, A. seclusa M.W.McDonald (syn. A. tumida var. pubescens Maiden), A. tumida var. extenta M.W.McDonald, A. tumida var. kulparn M.W.McDonald and A. tumida var. pilbarensis M.W.McDonald. A lectotype is designated for A. retinervis. A key to the group, which also includes A. brassii Pedley, A. eriopoda Maiden & Blakely, A. meiosperma (Pedley) Pedley, A. mountfordiae Specht & A. torulosa Benth., is presented. Genetic variation and phylogeny in A. areolata and A. seclusa on the basis of allozymes are briefly discussed. On the basis of present knowledge, three of the new taxa (A. dissimilis, A. seclusa, A. tumida var. extenta) have restricted distributions and warrant formal legislative protection.

New taxa in Glycine (Fabaceae: Phaseolae) from north-western Australia

2002 ◽  
Vol 15 (4) ◽  
pp. 565 ◽  
Author(s):  
B. E. Pfeil ◽  
L. A. Craven
Keyword(s):  
New Taxa ◽  
Western Australia ◽  
National Park ◽  
Northern Territory ◽  
Range Extension ◽  
North Western

Three new taxa of Glycine are described, namely Glycine pullenii B.E.Pfeil, Tindale & Craven and G.�aphyonota B.E.Pfeil from Bungle Bungle-Purnululu National Park, Western Australia, and G. hirticaulis subsp. leptosa B.E.Pfeil from the Top End of the Northern Territory. A key to Glycine Willd. in north-western Australia is provided. A range extension for G. falcata Benth. is noted.

A taxonomic review of Hibiscus sect. Furcaria (Malvaceae) in Western Australia and the Northern Territory

2003 ◽  
Vol 16 (2) ◽  
pp. 185 ◽  
Author(s):  
L. A. Craven ◽  
F. D. Wilson ◽  
P. A. Fryxell
Keyword(s):  
New Taxa ◽  
Western Australia ◽  
Morphological Diversity ◽  
Northern Territory ◽  
Identification Key ◽  
Distribution Maps ◽  
Taxonomic Review ◽  
North Western

Recent collections have extended significantly the known morphological diversity in Hibiscus sect. Furcaria in north-western Australia. This additional knowledge required a review of the taxonomy, as a result of which several new taxa are described, namely H. aneuthe, H. aphelus, H. bacalusius, H. fallax, H. fryxellii var. mollis, H. inimicus, H. kenneallyi, H. marenitensis, H. petherickii, H. reflexus, H. riceae, H. squarrulosus, H.�stewartii and H. thegaleus. Hibiscus mustiae is included in H. zonatus. An identification key, synoptic treatments and distribution maps are provided for all taxa occurring in the region. In addition, all new taxa are described and all, with the exception of H. thegaleus, are illustrated. An exsiccatae list is provided.

Revision of the Australian Ground-Beetle Genus Porocara Sloane (Coleoptera, Carabidae, Odacanthinae)

1986 ◽  
Vol 34 (5) ◽  
pp. 717 ◽  
Author(s):  
M Baehr
Keyword(s):  
Distribution Pattern ◽  
New Taxa ◽  
Western Australia ◽  
Ground Beetle ◽  
Taxonomic Status ◽  
Divergent Evolution ◽  
Phylogenetic Status ◽  
Species Groups ◽  
North Western

The Australian carabid genus Porocara Sloane is revised. For P. punctata Sloane a lectotype and paralectotypes are designated. The following new taxa are described: P. punctata kimberleyana, subsp. nov.; P. nigricollis, sp, nov.; P. occidentalis, sp. nov.; P. glabrata, sp. nov. The phylogenetic status of the genus is briefly discussed. Porocara is one of the most primitive genera of Odacanthinae with perhaps the most primitive habits found in odacanthines. Two species-groups are distinguished within Porocara: the more derivative glabrata-group (P. glabrata) and the more ancestral punctata-group (three species). The phylogenetic status of the species is discussed and presented in a cladogram. The known ranges of the species are mapped. The curious distribution pattern of three species in north- western Australia, but only one species in Queensland, is perhaps referable to several westward migrations from Queensland, resulting in the isolation of the immigrants in the northern and western refugia and in subsequent divergent evolution. The differing taxonomic status of the northern and western taxa, as well as the co-occurrence of two species, supports the hypothesis of several separate migrations.

scholarly journals Large‐scale eDNA metabarcoding survey reveals marine biogeographic break and transitions over tropical north‐western Australia

2021 ◽  
Author(s):  
Katrina West ◽  
Michael J. Travers ◽  
Michael Stat ◽  
Euan S. Harvey ◽  
Zoe T. Richards ◽  
...  
Keyword(s):  
Western Australia ◽  
Large Scale ◽  
North Western

Significant population genetic structure detected for a new and highly restricted species of Atriplex (Chenopodiaceae) from Western Australia, and implications for conservation management

2012 ◽  
Vol 60 (1) ◽  
pp. 32 ◽  
Author(s):  
Laurence J. Clarke ◽  
Duncan I. Jardine ◽  
Margaret Byrne ◽  
Kelly Shepherd ◽  
Andrew J. Lowe
Keyword(s):  
Genetic Variation ◽  
New Species ◽  
Genetic Structure ◽  
Western Australia ◽  
Sequence Data ◽  
Isolation By Distance ◽  
Conservation Strategies ◽  
New Taxon ◽  
Near Surface ◽  
Two Populations

Atriplex sp. Yeelirrie Station (L. Trotter & A. Douglas LCH 25025) is a highly restricted, potentially new species of saltbush, known from only two sites ~30 km apart in central Western Australia. Knowledge of genetic structure within the species is required to inform conservation strategies as both populations occur within a palaeovalley that contains significant near-surface uranium mineralisation. We investigate the structure of genetic variation within populations and subpopulations of this taxon using nuclear microsatellites. Internal transcribed spacer sequence data places this new taxon within a clade of polyploid Atriplex species, and the maximum number of alleles per locus suggests it is hexaploid. The two populations possessed similar levels of genetic diversity, but exhibited a surprising level of genetic differentiation given their proximity. Significant isolation by distance over scales of less than 5 km suggests dispersal is highly restricted. In addition, the proportion of variation between the populations (12%) is similar to that among A. nummularia populations sampled at a continent-wide scale (several thousand kilometres), and only marginally less than that between distinct A. nummularia subspecies. Additional work is required to further clarify the exact taxonomic status of the two populations. We propose management recommendations for this potentially new species in light of its highly structured genetic variation.

Bysmatrum teres sp. nov., a new sand-dwelling dinoflagellate from north-western Australia

Phycologia ◽  
2006 ◽  
Vol 45 (2) ◽  
pp. 161-167 ◽  
Author(s):  
Shauna Murray ◽  
Mona Hoppenrath ◽  
Jacob Larsen ◽  
David J. Patterson
Keyword(s):  
Western Australia ◽  
North Western

Feral pigs in north-western Australia: population recovery after 1080 baiting and further control

2006 ◽  
Vol 33 (5) ◽  
pp. 417 ◽  
Author(s):  
Laurie E. Twigg ◽  
Tim Lowe ◽  
Michael Everett ◽  
Gary Martin
Keyword(s):  
Western Australia ◽  
Population Recovery ◽  
Feral Pigs ◽  
Muddy Water ◽  
Good Body Condition ◽  
Bait Station ◽  
Before And After ◽  
Bait Stations ◽  
North Western ◽  
Fitzroy River

The recovery rate of a population of feral pigs (Sus scrofa) in the west Kimberley in north-western Australia was determined 12 months after a 1080 (sodium fluoroacetate)-baiting program. An estimated 56 pigs were present in the 15 000-ha study area in August 2005 compared with the prebaiting levels of 250–275 pigs in 2004 (11 pigs were known to be alive on site after the 2004 baiting). This represents a population recovery of 20–23% of the 2004 prebaiting levels. Although most pigs were in good body condition, environmental conditions were quite different between the two years. In 2005, some waterholes were dry or comprised mainly muddy water with little associated shelter for feral pigs. Consequently, and in contrast to 2004, no pigs were seen, and no bait take could be attributed to feral pigs, at the four resurveyed waterholes. Most pig sightings, and activity, were close to the Fitzroy River. Fermented wheat, with blood and bone, was used to determine areas of pig activity, and also used as prefeed before 1080-baiting commenced in 2005. Using the same bait stations as for 2004, plus additional stations established in new areas of pig activity, 1080-treated wheat and malted barley again proved highly effective in reducing pig numbers. The daily sighting index before and after 1080-baiting indicated that pig numbers had been reduced by ~90% within four days. Estimated pre- and postpoisoning density, with and without an edge effect, was 0.12–1.7 pigs km–2 and 0.05–0.67 pigs km–2. Pig tracks decreased to zero on the six track plots within two days of baiting, but the number of macropod tracks remained constant over the four-day baiting period. Thirty-eight poisoned pigs were found after 1080-baiting, and these were generally in clustered groups within 200 m of an active bait station. Poisoned juvenile pigs were again found closer to the active bait stations than were adult or subadult pigs (P < 0.05).

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