Natural diversity of Santalum spicatum host species in south-coast river systems and their incorporation into profitable and biodiverse revegetation

2003 ◽  
Vol 51 (6) ◽  
pp. 741 ◽  
Author(s):  
G. S. Woodall ◽  
C. J Robinson
Keyword(s):  
Host Species ◽  
Population Decline ◽  
South Coast ◽  
The South ◽  
River Catchment ◽  
Root Hemiparasite ◽  
Farming Community ◽  
Wide Range ◽  
Santalum Spicatum ◽  
River Catchments

The commercially valuable root hemiparasite Santalum spicatum (R.Br.) A.DC. (sandalwood) once grew throughout the medium- to low-rainfall areas of the south-western agricultural region of Australia; however, this resource has been exhausted by over-exploitation and clearing for agriculture. There has been growing interest from the farming community and other investors in the development of a plantation Santalum spicatum industry in southern Western Australia. This study investigated the distribution of remnant S. spicatum within the Pallinup River catchment and assessed the risk of S. spicatum population decline due to salinity. The natural range of host species at different sites (river catchments) across the south coast was also investigated. Remnant populations of S.�spicatum within and adjacent to the Pallinup River catchment were small (1–70 trees) and highly fragmented. The risk of further population decline due to salinity was concluded to be small because remnant trees were generally growing in well drained, sandy soils that were elevated above (median 9 m) their immediate drainage line. Across the seven river catchments surveyed, S. spicatum occurred in a range of vegetation associations and parasitised numerous species (68) from a wide range of genera and families. The suite of species exploited varied within and between catchments. Thirty species, including most monocots and Myrtaceae, were not successfully parasitised. Remnant S. spicatum always occurred on well drained soil types that supported open-woodland or mallee–heath communities. Sandalwood plantations, supported by numerous individuals of a range of host species (10–40 species), were shown to be productive in terms of sandalwood growth. The scale of the developing sandalwood plantation industry is likely to be small and unlikely to cover large areas of catchments. Thus, this industry alone is unlikely to address the salinity crisis through broadscale recharge management. However, additional to on-site recharge reduction, biodiverse host plantations may improve the prospects for biodiversity and rivers in salinising landscapes through the protection and enhancement of natural biodiversity, creation of new habitat, conservation of plant species and by providing a commercial incentive to protect biodiversity.

Diets of Scincid Lizards Lampropholis-Guichenoti (Dumeril and Bibron) and Lampropholis-Delicata (De Vis) in Mumbulla State Forest on the South Coast of New-South-Wales

1989 ◽  
Vol 16 (3) ◽  
pp. 307 ◽  
Author(s):  
D Lunney ◽  
E Ashby ◽  
J Grigg ◽  
M Oconnell
Keyword(s):  
Foraging Ecology ◽  
New South ◽  
New South Wales ◽  
South Coast ◽  
Gut Contents ◽  
Coastal Forests ◽  
The South ◽  
South Wales ◽  
Wide Range ◽  
Combined Impact

The diets of the two small scincid lizards Lampropholis guichenoti and L. delicata were examined by analysis of gut contents. The study was conducted in Mumbulla State Forest on the south coast of New South Wales. Gut samples were collected before an intense fire in November 1980, then again in December of 1980, 1981, 1983 and 1984. The study included a period of intense drought from 1980 to 1983. Both species were found to be generalist feeders taking a wide range of invertebrate taxa, mostly insects and spiders. The range of taxa taken as prey indicated that both species foraged over a variety of substrates and were flexible in their foraging behaviour. Both species had a similar diet, except during the drought years when there were significant differences in the proportions of some taxa eaten. That both species are common in the coastal forests near Bega and survived the combined impact of fire and drought can be attributed, at least in part, to the flexibility of their foraging ecology.

scholarly journals LASPI 7 MESOLITHIC SITE ON THE SOUTH COAST OF CRIMEA, UKRAINE

2020 ◽  
Vol 37 (4) ◽  
pp. 32-51
Author(s):  
D. Ya. Telegin ◽  
L. L. Zaliznyak ◽  
O. O. Yanevich
Keyword(s):  
Roe Deer ◽  
South Coast ◽  
The South ◽  
Bone Tools ◽  
Black Sea Coast ◽  
Wide Range ◽  
West Part ◽  
Archaeological Materials ◽  
Cultural Layers ◽  
Late Mesolithic

Late Mesolithic Laspi 7 site is situated in Ukraine, in the West part of the South Coast of Crimea, in the Laspi Bay, Black Sea coast (44°24’48.5”N 33°42’41.3”E). It was investigated under the direction of prof. Dmytro Telegin in the second half of 1970s. The site was destroyed by Russian occupation power. There were 7 cultural layers of the site, which had the thickness near 2 m. There was Kokkenmedding — clay sediment with crushed stone and with unusual great number of the Helix albescens shells, ash and charcoal. Any structures of the cultural layer are not traced. Archaeological materials of Laspi 7 are represented by numerous flint collection (2347 eks.), bone tools assemblage (13 eks.), ocher, faunistic materials etc. Flint complexes from all cultural layers generally are similar. Most of the cores are pyramidal. Prismatic and pencil-shaped cores are single. Microlithic assemblage consists of geomethric miсroliths (asymmetrical and symmetrical trapezoids); single backed microliths and truncated blades. Scrapers are mostly semicircular on the flakes, single end scrapers are on the blades. Most of the burins are on the flakes, they are angle and, in smaller quantities, lateral. There are some «Kukrek type» burins with numerous worked parts. Angle burins on the blades are not numerous. Unusual big quantity of encoches is amazing. There is one Kukrek insert. Bone tools are very different (13 eks.): base part of the harpoon, fragment of the point with the grooves, different points, the borers, partly worked boar tusks, fragment of the antler socket. The age of Laspi 7 is 8600—7000 ВР. The most true 14C dates are 8625 ± 40 BP (GrA-35704) and 8620 ± 40 BP (GrA-35703). Laspi 7 flint assemblage is typical for the Late Mesolithic Murzak-Koba culture of Mountain Crimea. Laspi 7 is a shining example of the «revolution of the wide range» in Crimea. Inhabitants of the site used very different food resources: ungulates (red deer, boar, roe deer), birds (above all bustard), fish (catfish and pike perch), Helix albescens snails. Numerous ornito-, ihtio- and malakofauna dates evidences about the occupation of the site in autumn, winter, and spring time. Probably, the site was visited periodically during these seasons.

scholarly journals Quantification of Margalefidinium polykrikoides Blooms along the South Coast of Korea Using Airborne Hyperspectral Imagery

2020 ◽  
Vol 12 (15) ◽  
pp. 2463
Author(s):  
Jisun Shin ◽  
Soo Mee Kim ◽  
Keunyong Kim ◽  
Joo-Hyung Ryu
Keyword(s):  
Spatial Distribution ◽  
Polynomial Regression ◽  
Red Tide ◽  
Hyperspectral Imagery ◽  
Spectral Characteristics ◽  
South Coast ◽  
Mean Bias Error ◽  
The South ◽  
Cell Abundance ◽  
Wide Range

The red tide bloom-forming dinoflagellate Margalefidinium polykrikoides is well known for its harmful effects on marine organisms, and for killing fish in aquaculture cages via gill clogging at a high cell abundance. To minimize the damage caused by red tide blooms, it is essential to understand their detailed spatial distribution with high accuracy. Airborne hyperspectral imagery (HSI) is useful for quantifying red tide cell abundance because it provides substantial information on optical features related to red tide species. However, because published red tide indexes were developed for multichannel ocean color sensors, there are some limitations to applying them directly to HSI. In this study, we propose a new index for quantifying M. polykrikoides blooms along the south coast of Korea and generate a M. polykrikoides cell abundance map using HSI. A new index for estimating cell abundance was proposed using the pairs of M. polykrikoides cell abundances and in situ spectra. After optimization of the published red tide indexes and band correlation analyses, the green-to-fluorescence ratio (GFR) index was proposed based on red tide spectral characteristics. The GFR index was computed from the green (524 and 583 nm) and fluorescence wavelength bands (666 and 698 nm) and converted into red tide cell abundance using a second-order polynomial regression model. The newly proposed GFR index showed the best performance, with a coefficient of determination (R2) of 0.52, root mean squared error (RMSE) of 877.98 cells mL−1, and mean bias error (MBE) of −18.42 cells mL−1, when applied to atmospherically corrected HSI. The M. polykrikoides cell abundance map generated from the GFR index provides precise spatial distribution information and allowed us to estimate a wide range of cell abundance up to 5000 cells mL−1. This study indicates the potential of the GFR index for quantifying M. polykrikoides cell abundance from HSI with a reasonably high level of accuracy.

The Charting of the South Coast of Java

Archipel ◽  
1981 ◽  
Vol 22 (1) ◽  
pp. 87-104
Author(s):  
Günter Schilder
Keyword(s):  
South Coast ◽  
The South

scholarly journals Morphometric and Molecular Analyses of Ostertagia leptospicularis Assadov, 1953 from Ruminants: Species Diversity or Host Influence?

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 182
Author(s):  
Anna Wyrobisz-Papiewska ◽  
Jerzy Kowal ◽  
Elżbieta Łopieńska-Biernat ◽  
Paweł Nosal ◽  
Iwona Polak ◽  
...  
Keyword(s):  
Host Species ◽  
Roe Deer ◽  
Bos Taurus ◽  
Capreolus Capreolus ◽  
Nematode Species ◽  
Molecular Techniques ◽  
Systematic Classification ◽  
Morphological Variations ◽  
Wide Range ◽  
Induced Changes

Ostertagia leptospicularis Assadov, 1953 was formally described in roe deer Capreolus capreolus and has been reported in a wide range of ruminants, including other Cervidae, as well as Bovidae. Nematode specimens derived from various host species exhibit morphological similarity; however, some differences can be observed. It is unclear if this is due to the differential reaction of one nematode species in different host species (i.e., host-induced changes) or because of distinct nematode species in these hosts (i.e., species complex). This paper focuses on specimens resembling O. leptospicularis f. leptospicularis and its closely related species (Ostertagia ostertagi f. ostertagi) collected from various hosts. Morphometric and molecular techniques were applied to assess host-induced changes in nematode morphology and to clarify its systematic classification. There was an overall effect of host species on measurements of nematodes resembling O. leptospicularis (both males and females), but the distinctiveness of the specimens from cattle Bos taurus were highlighted. The results obtained may suggest that the specimens of O. leptospicularis from cattle in Germany and cervids in central Europe belong to different strains. Furthermore, nematodes from the cervid strain appear to circulate within particular host species, which can be seen in the stated morphological variations.

Sign in / Sign up

Export Citation Format

Share Document