Estimating brush-tailed rock-wallaby population size using individual animal recognition

2011 ◽  
Vol 33 (2) ◽  
pp. 228
Author(s):  
Karl Vernes ◽  
Stuart Green ◽  
Piers Thomas
Keyword(s):  
Population Size ◽  
National Park ◽  
New South ◽  
Morphological Characters ◽  
Population Estimates ◽  
Individual Animal ◽  
Mark Recapture ◽  
South Wales ◽  
North Eastern ◽  
Estimate Population Size

We undertook surveys of brush-tailed rock-wallabies (Petrogale penicillata) at four colonies in Oxley Wild Rivers National Park, north-eastern New South Wales, with the aim of developing a technique based upon individual animal recognition that could be used to obtain robust population estimates for rock-wallaby colonies. We identified individuals on the basis of distinct morphological characters in each colony using visual observations, and used the data within a ‘mark–recapture’ (or sight–resight) framework to estimate population size. More than 37 h of observations were made over 10 sampling days between 18 May and 9 June 2010. We could identify 91.7% of all rock-wallabies that were independently sighted (143 of 156 sightings of 35 animals). A small percentage of animals could not be identified during a visit because they were seen only fleetingly, were in dense cover, or were partly obscured by rock. The number of new animals sighted and photographed declined sharply at the midpoint of the survey, and there was a corresponding increase in resighting of known individuals. Population estimates using the mark–recapture methodology were nearly identical to estimates of total animals seen, suggesting that this method was successful in obtaining a complete census of rock-wallabies in each colony.

A new Cynoglossum species, and transfers to Hackelia in eastern Australian Boraginaceae

2017 ◽  
Vol 30 (2) ◽  
pp. 113 ◽  
Author(s):  
Richard J. Dimon ◽  
Matt A. M. Renner
Keyword(s):  
New South ◽  
Morphological Characters ◽  
The Other ◽  
Eastern Coast ◽  
Molecular Evidence ◽  
Qualitative And Quantitative ◽  
South Eastern ◽  
Species Circumscription ◽  
South Wales ◽  
North Eastern

Recent molecular evidence supports the transfer of two Australian endemic species, Austrocynoglossum latifolium (R.Br.) R.R.Mill and Cynoglossum suaveolens R.Br., to the genus Hackelia Opiz as H. latifolia (R.R.Mill) Dimon & M.A.M.Renner, comb. nov., and H. suaveolens (R.Br.) Dimon & M.A.M.Renner, comb. nov. Hackelia latifolia comprises two morphological entities that, although sharing the procumbent-prostrate habit and production of elongated internodes and frondose bracts in the inflorescence, differ in a range of qualitative and quantitative micro-morphological characters. Hackelia latifolia has few, widely spaced, thorn-like trichomes on stems, a glabrous abaxial lamina surface, and mericarps with free glochids densely and evenly distributed over the outer surface, and a rectangular cicatrix at the mericarp apex, which is beaked. The other entity has many densely packed cellular trichomes on the stems, trichomes on the abaxial leaf lamina, and mericarps with a wing formed by basally connate glochids, and a triangular cicatrix located centrally on the inner mericarp surface. For the latter, we propose the new species Cynoglossum torvum Dimon & M.A.M.Renner, and by implication suggest that H. latifolia is polyphyletic as previously circumscribed. Whereas H. latifolia s.s. is widespread along the south-eastern coast of Australia from Tasmania to south-eastern Queensland, Cynoglossum torvum is restricted to the tablelands of north-eastern New South Wales and south-eastern Queensland. We compare C. torvum with the other Australian Cynoglossum L. species, C. australe R.Br., confirm previous observations of variation in mericarp morphology, and suggest that further investigation to resolve species circumscription is required given this variation.

The Banksia integrifolia L.f. species complex (Proteaceae)

1994 ◽  
Vol 7 (4) ◽  
pp. 393 ◽  
Author(s):  
K Thiele ◽  
PY Ladiges
Keyword(s):  
Species Complex ◽  
New South ◽  
New South Wales ◽  
Morphological Characters ◽  
South Eastern ◽  
South Wales ◽  
North Eastern ◽  
Ordination Analysis

The Banksia integrifolia (Proteaceae : Grevilleoideae) species complex currently comprises three varieties: var. aquilonia from northern Queensland; var. integrifolia from coastal Victoria and New South Wales; and var. compar, which is polymorphic and comprises two forms, a coastal form from southern Queensland and a montane form from north-eastern New South Wales and south-eastern Queensland. Ordination analysis of morphological characters of adults and seedlings indicates that the montane populations of var. compar comprise a separate taxon, which is phenetically closer to var. integrifolia than it is to typical var. compar. Banksia integrifolia var. aquilonia is phenetically quite distinct from the remaining taxa. The new names and combinations Banksia integrifolia subsp. monticola K.R. Thiele, B. integrifolia subsp. aquilonia (A.S. George) K.R. Thiele and B. integrifolia subsp. compar (R.Br.) K.R. Thiele are published.

Schistonchus molochi sp. n. and S. athertonensis sp. n. (Nematoda: Aphelenchoididae) from Ficus watkinsiana (Moraceae) in Australia

Nematology ◽  
2013 ◽  
Vol 15 (4) ◽  
pp. 389-400 ◽  
Author(s):  
Kerrie A. Davies ◽  
Faerlie Bartholomaeus ◽  
Natsumi Kanzaki ◽  
Robin M. Giblin-Davis
Keyword(s):  
Excretory Pore ◽  
New South ◽  
South Australia ◽  
Tail Length ◽  
Morphological Characters ◽  
Nerve Ring ◽  
South Wales ◽  
North Eastern ◽  
Pore Opening ◽  
Tail Tip

Ficus watkinsiana (sub-genus Urostigma, Section Stilpnophyllum) is endemic to Australia, growing in two disjunct populations, one in north-eastern Queensland and the other in south-eastern Queensland and north-eastern New South Wales. Schistonchus molochi sp. n. is described from F. watkinsiana in Queensland, Australia, and differentiated from other species of Schistonchus by a combination of morphological characters including having the excretory pore opening near the nerve ring, a broad head, a large, strongly sclerotised, stylet, a distinct lip sector disc with raised edges, a long post-uterine sac, rose-thorn-shaped spicule, no gubernaculum, three pairs of subventral papillae on the tail (one pair pre-cloacal on the anterior lip, one pair adcloacal on the posterior lip, and one slightly posterior to mid-tail) and bluntly rounded tail tip, and apparent biogeographical range. Presence of the lip sector disc suggests that it is closest to S. macrophylla. Schistonchus athertonensis sp. n. is also described from F. watkinsiana in Queensland and is characterised by a combination of morphological characters, including having the excretory pore opening near the nerve ring, a medium length post-uterine sac, presence of vulval flap in some specimens, rose-thorn-shaped spicule, no gubernaculum, and three pairs of subventral papillae on the tail (one pair adcloacal on the posterior lip, one at three to four-fifths of the tail length and one near the tip), a narrowly rounded tail tip, and apparent biogeographical range. Morphospecies 8, originally collected from F. obliqua, was also collected from F. watkinsiana in Queensland, and S. altermacrophylla was found with it in South Australia. These collections are further evidence of host-switching within Schistonchus.

Effectiveness of protected areas in north-eastern New South Wales: recent trends in six measures

2002 ◽  
Vol 106 (1) ◽  
pp. 57-69 ◽  
Author(s):  
R.L Pressey ◽  
G.L Whish ◽  
T.W Barrett ◽  
M.E Watts
Keyword(s):  
Protected Areas ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
North Eastern ◽  
Recent Trends

Outflow ignimbrite sheets from Late Carboniferous calderas, Currabubula Formation, New South Wales, Australia

1983 ◽  
Vol 120 (5) ◽  
pp. 487-503 ◽  
Author(s):  
J. McPhie
Keyword(s):  
New South ◽  
Sedimentary Facies ◽  
Late Carboniferous ◽  
The West ◽  
Pyroclastic Deposits ◽  
Flow Units ◽  
South Wales ◽  
Accretionary Lapilli ◽  
North Eastern ◽  
Thickness Variations

SummaryRegionally mappable, silicic, outflow ignimbrite sheets are interbedded with fluvial volcanogenic conglomerates and sandstones of the Late Carboniferous Currabubula Formation of north-eastern N.S.W. Four of the most widespread of these ignimbrites are described and defined as members. The oldest member is comprised of many thin, originally non-welded flow units. Interbedded accretionary lapilli horizons may indicate phreatomagmatic activity at vent during the eruption in addition to local rain-flushing of co-ignimbrite ash clouds. Of the three other members, two are multiple flow-unit sheets, 160–180 m in aggregate thickness. Substantial portions of these sheets were originally welded. The remaining member is a simple welded ignimbrite characterized by abundant spherulites and lithophysae. Irregular pre-eruption topography and contemporaneous erosion were responsible for thickness variations of the ignimbrite sheets. Some palaeovalleys, now delineated by the ignimbrites, persisted in spite of repeated pyroclastic influxes. Relic pumice, shards and crystal fragments are ubiquitous components of the sedimentary facies of the Currabubula Formation, and were probably derived from originally poorly consolidated pyroclastic deposits such as airfall ash layers and non-welded ignimbrites. No surface trace of the sources of these ignimbrites exists. However, internal facies, thickness variations and volumes of the ignimbrites indicate that they periodically emanated from a multiple-caldera terrain which was continuously active during the Late Carboniferous, and located several kilometres to the west of present exposures.

scholarly journals Modeling Methane Emission from Wetlands in North-Eastern New South Wales, Australia Using Landsat ETM+

2010 ◽  
Vol 2 (5) ◽  
pp. 1378-1399 ◽  
Author(s):  
Clement E. Akumu ◽  
Sumith Pathirana ◽  
Serwan Baban ◽  
Daniel Bucher
Keyword(s):  
Methane Emission ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
North Eastern

On-site domestic wastewater treatment by reed bed in the moist subtropics

2001 ◽  
Vol 44 (11-12) ◽  
pp. 353-360 ◽  
Author(s):  
L. Davison ◽  
T. Headley ◽  
M. Edmonds
Keyword(s):  
New South ◽  
Domestic Wastewater ◽  
Moisture Loss ◽  
Reed Beds ◽  
Treatment Performance ◽  
South Wales ◽  
Domestic Wastewater Treatment ◽  
Australian State ◽  
North Eastern ◽  
Reed Bed

This paper summarises the results of studies on four subsurface flow wetlands (reed beds) located in the moist sub-tropical north eastern corner of the Australian state of New South Wales. The reed beds, which are subjected to a variety of effluent types, all have a gravel substrate planted with Phragmites australis. All four units were found to maintain satisfactory treatment performance year round. Mean removal efficiencies ranged from 56% to 90% (SS), 70% to 93% (BOD), 38% to 66% (TN), 87% to 99.8% (Faecal coliforms), and 42% to 70% (TP - with one seasonal result of 0% for the eight year old unit) for the four reed beds. After eight years in operation the oldest reed bed was showing signs of phosphorus saturation with outlet TP concentrations exceeding inlet concentrations on some occasions. The youngest reed bed studied appeared to be operating efficiently after five months. A summer water balance on one of the reed beds revealed an average crop factor of 1.6 and a moisture loss to atmosphere of 40% of influent flow. Treatment performance (particularly for TN and SS) was found to be negatively correlated with rainfall during one study. The paper discusses the implications of the above results for on-site system designers and regulators and identifies areas for further investigation.

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