Geographic-Variation in Seedling Morphology of Acacia auriculiformis A-Cunn ex-Benth

1991 ◽  
Vol 39 (3) ◽  
pp. 247 ◽  
Author(s):  
K Pinyopusarerk ◽  
ER Williams ◽  
DJ Boland

Seedlings from 30 provenances from Papua New Guinea, Queensland and the Northern Territory, Australia, (and two from Thailand) were raised under common glasshouse conditions. Seventeen attributes were measured for each seedling and the resultant data subjected to univariate and multivariate analyses. Provenance differences were evident; variation amongst families within provenances was generally small. The Papua New Guinea, Queensland and Northern Territory material clustered into three distinct groups. There was a suggestion that the Queensland and Northern Territory populations were more closely related to each other than to those from Papua New Guinea. The Thai populations possibly came originally as seed from Queensland.

2002 ◽  
Vol 50 (3) ◽  
pp. 319 ◽  
Author(s):  
A. Kalinganire ◽  
K. Pinyopusarerk ◽  
E. R. Williams

Seed collected from 23 native provenances of Chukrasia A.Juss. and one Australian land race was used to study geographic variation in seedling morphology under temperature-controlled glasshouse conditions. Twenty-four variates were measured for each seedling and the resultant data subjected to univariate and multivariate analyses. The multivariate analyses effectively separated the Chukrasia genus into three different groups or eco-geographical clusters. The most important characteristics that separated the groups were bark structure, leaf type and midrib colour. The first group, provenances from China, Laos, Malaysia, Vietnam and the Australian land race, is characterised by smooth bark, pinnate or intermediate leaves and reddish-green to greenish-red midrib. The second group, provenances from Myanmar and Thailand, is characterised by rough bark, mainly bipinnate leaves and green midrib. The third group, provenances from Sri Lanka, is characterised by rough bark, bipinnate leaves and red midrib. The study clearly shows Chukrasia to be a polymorphic species comprising at least three ecotypes or possibly three ecospecies. A study of allozyme variation may better reveal the systematics within the genus.


1993 ◽  
Vol 41 (1) ◽  
pp. 65 ◽  
Author(s):  
R Wickneswari ◽  
M Norwati

Seeds from 18 populations of Acacia auriculiformis A. Cunn. ex Benth. from natural riverine and coastal forests in Australia and Papua New Guinea were electrophoretically analysed at 22 isozyme loci representing 17 enzyme systems. Genetic variability measures were determined using 12 isozyme loci. On average, 39.8% of the loci were polymorphic (0.99 criterion). Average and effective numbers of alleles per locus were 1.5 and 1.1 respectively. Mean expected heterozygosity was 0.081 with values ranging from 0.002 (South Alligator River, Northern Territory) to 0.180 (North Mibini, Papua New Guinea). The genetic differentiation between populations was high (GST = 0.270), indicating that about 73% of the isozyme variation was among progenies within populations. Hence, both intra- and inter-population genetic variations are important in initial selections in A. auriculiformis improvement programs. Nei's unbiased genetic distance between populations ranged from 0.000 to 0.120, with populations from the Northern Territory, Australia, generally being very closely related to each other. UPGMA cluster analysis using Nei's unbiased genetic distance revealed three distinct clusters of populations corresponding to the geographic distribution of the species in the Northern Territory and Queensland, Australia, and Papua New Guinea. Populations from Queensland were closely related to populations from Papua New Guinea rather than to populations from the Northern Territory, which is in the same land mass.


2016 ◽  
Vol 64 (2) ◽  
pp. 160 ◽  
Author(s):  
Pan Hu ◽  
Chonglu Zhong ◽  
Yong Zhang ◽  
Qingbin Jiang ◽  
Yu Chen ◽  
...  

Seeds collected from 28 natural provenances and introduced populations of Casuarina equisetifolia subsp. equisetifolia L. from Oceania, Asia and Africa were used to study geographic variation in growth and morphology of nursery-grown seedlings. Ten characteristics related to growth and branching habit were measured for each seedling and the resultant data subjected to univariate and multivariate analyses. In general, seedlings from Oceania grew more slowly, were more densely branched with fine and upright branching, and had fewer teeth per whorl than those from other areas. Cluster analysis effectively separated Oceania from Asian natural provenances, and revealed the probable original sources of introductions to different parts of Asia and Africa. Further investigation into the pattern of variation through molecular characterisation of genetic material from all major regions of distribution is warranted in order to better understand the genetic relationships and enhance more efficient utilisation of this important casuarina species.


Zootaxa ◽  
2018 ◽  
Vol 4410 (1) ◽  
pp. 177
Author(s):  
M. B. MALIPATIL

The assassin bugs of the genus Ptilocerus Gray, 1831 (Hemiptera: Heteroptera: Reduviidae: Holoptilinae) occurring in the Australian Region are reviewed for the first time, resulting in the description of two new species, viz., P. spangenbergi sp. nov. (Queensland and Northern Territory, Australia) and P. papuensis sp. nov. (Papua New Guinea). The latter species differs from P. fuscus Gray, 1831 (the type-species of genus Ptilocerus) in a couple of major external morphological characters, hence its tentative placement in the genus Ptilocerus is discussed. A key for the separation of the two new species is provided. 


Author(s):  

Abstract A new distribution map is provided for Phyllosticta maculata Wong & Crous. Dothideomycetes: Phyllostictaceae. Hosts: banana (Musa spp.). Information is given on the geographical distribution in Asia (Indonesia, Java, Sulawesi, Malaysia, Sarawak, Philippines), Oceania (American Samoa, Australia, Northern Territory, Queensland, Fiji, Palau, Papua New Guinea, Samoa, Solomon Islands).


Author(s):  

Abstract A new distribution map is provided for Atelocauda digitata (G. Winter) Cummins & Y. Hirats. Fungi: Teliomycetes: Uredinales Hosts: Acacia spp. Information is given on the geographical distribution in ASIA, China, Hong Kong, Indonesia, Java, NORTH AMERICA, USA, Hawaii, OCEANIA, Australia, Northern Territory, Queensland, Victoria, New Caledonia, Papua New Guinea, Vanuatu.


Zootaxa ◽  
2005 ◽  
Vol 1024 (1) ◽  
pp. 1 ◽  
Author(s):  
PHILIP D. PERKINS

The Australian and Papua New Guinean species of the water beetle genus Gymnochthebius Orchymont, 1943, are revised, based on the study of 4,904 specimens. The genus is redescribed, and redescriptions are provided for G. australis (Blackburn), G. brisbanensis (Blackburn), G. clarki (Deane), G. levis (Deane), G. lividus (Deane), G. notalis (Deane), and G. tenebricosus (Deane). Lectotypes are designated for Ochthebius australis Blackburn, 1888, and Ochthebius tenebricosus Deane, 1931. Ochthebius fischeri Deane, 1931, and Ochthebius leai Deane, 1931, are synonymized with Ochthebius australis Blackburn, 1888; Ochthebius flavocinctus Deane 1933, is synonymized with Ochthebius lividus Deane, 1933; and Ochthebius angustipennis Deane, 1931, is synonymized with Ochthebius clarki Deane, 1931. Twenty-nine new species are described, and a key to the 36 species known from Australia and Papua New Guinea is given. High resolution digital images of all primary types are presented (online version in color), the male genitalia are illustrated, and Australian geographic distributions are mapped. Only one species, G. clarki, inhabits both Australia and Papua New Guinea; two species, G. bacchusi n. sp. and G. papua n. sp. are endemic to Papua New Guinea; 33 species are endemic to Australia. Members of Gymnochthebius are found at the gravelly/sandy/silty margins of flowing and standing water. A preliminary grouping of species according to microhabitat substrate is presented. Correspondences between ventral morphology and microhabitat preferences suggest that a few species are evolving toward humicolous habits. New species of Gymnochthebius are: G. angulonotus (Queensland, Tinaroo Creek Road via Mareeba), G. bacchusi (Papua New Guinea, Morobe District, c. 7 miles Lae Bulolo Road), G. benesculptus (South Australia, Warburton River, 1 km N White Bull Yard Kalamurina Stn.), G. coruscus (South Australia, Warburton River, 1 km N White Bull Yard Kalamurina Stn.), G. fontinalis (South Australia, Elizabeth (Mound) Springs, 7 km NW Coward Springs R.S.), G. fumosus (New South Wales, Sydney), G. hesperius (Western Australia, Lyndon River Bridge), G. inlineatus (Western Australia, Millstream, creek near Deep Reach), G. lustrosulcus (Queensland, Cloncurry), G. minipunctus (Northern Territory, Palm Valley), G. nanosetus (Northern Territory, Roderick Creek, Gregory National Park), G. nicki (Victoria, Possum Hollow falls, West branch Tarwin River, 5.6 km SSW Allambee), G. nigriceps (South Australia, Mound Spring near Coward Springs), G. papua (Papua New Guinea, Morobe District, ca. 10 km S Garaina Saureri), G. perpunctus (South Australia, Somme Creek, between Angaston and Sedan), G. pluvipennis (South Australia, Warburton


2020 ◽  
Vol 8 (1) ◽  
pp. 37-45
Author(s):  
KONSTANTINA M. B KAMEUBUN ◽  
ROSANIA REHIARA ◽  
FRANS DEMINGGUS

Ethnobotanical and taxonomical studies are conducted to uncover the scientific name, uses as well as utilization of Diwoka (local name) popular to the Dani people in Wamena. The local name, Diwoka, is determined by its scientific name Piper macropiper Pennant. Piper macropiper has been used by the Dani people to serve as spices when foods are cooked traditionally by stone-fired earth oven (bakarbatu) or prepared in other ways such as stir-frying vegetables, fish, and meat. The leaves can be consumed uncooked the way salad is consumed beside it is functioned as medicine as well. The distribution of this type of plant is found in Indonesia, Papua New Guinea, Solomon Islands, Australia (Northern territory), Brunei, and Sri Lanka


1994 ◽  
Vol 17 (1) ◽  
pp. 31
Author(s):  
D.J. Kitchener ◽  
M. Adams

Skull and external morphology and the genetic relationships of Scotorepens sanbomi individuals were studied for populations in Papua New Guinea, Queensland, Northern Territory, Western Australia and West Timor (a recently discovered population). Discriminant function analyses showed that animals from West Timor were large and similar in size and shape to those from Papua New Guinea and Queensland; their skull dimensions were closer to Queensland animals whereas their external dimensions were closer to Papua New Guinea animals. The West Timor, Papua New Guinea and Queensland animals were considerably larger in skull', external and baculum measurements than the Western Australian animals. The Northern Territory animals were intermediate, but closer to the Western Australian animals. The latter also showed some proportional (shape) differences from animals in these other populations. The largest animals (West Timor) had a relatively high wing loading and higher aspect ratio than the smallest (Western Australia) animals. This suggests that on West Timor the species forage in less cluttered airspace, probably higher above the vegetation, than their counterparts from Western Australia. Allozyme electrophoresis of 3lloci revealed considerable genetic heterogeneity between the populations (Nei Ds range 0.023- 0.158). The West Timor population was genetically most similar to the Western Australia and Northern Territory populations and most divergent from both the Queensland and New Guinea populations.


2001 ◽  
Vol 23 (2) ◽  
pp. 185 ◽  
Author(s):  
S Murphy

THE bare-rumped sheathtailed bat Saccolaimus saccolaimus is a poorly understood species that has a wide distribution covering parts of India, Sri Lanka, Thailand, Myanmar, Malaya, Indonesia, New Guinea, the Solomon Islands and Northern Australia (Bonaccorso 1998). First collected in Australia by De Vis near Cardwell, the current known distribution in Queensland (Qld) extends from Bowen to Cooktown with one isolated specimen collected near Coen on Cape York Peninsula (Hall 1995; Duncan et al. 1999). It has also been recorded in the Alligator River area in the Northern Territory (McKean et al. 1981). The conservation status of S. saccolaimus in Qld has recently been defined as ?Critically Endangered?, and the species has not been recorded anywhere in Australia for at least 18 years (Duncan et al. 1999; Menkhorst and Knight 2001). The likely reasons for the apparent decline are unclear, but may involve land-clearing and changed fire regimes in the coastal zone where it is thought to occur (Duncan et al. 1999). In contrast, Bonaccorso (1998) considers S. saccolaimus to be secure, albeit also poorly known in Papua New Guinea.


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