Overview of The Status of Rock-wallabies in South Australia.

1996 ◽  
Vol 19 (2) ◽  
pp. 153
Author(s):  
P.B. Copley ◽  
P.J. Alexander

The status of Yellow-footed Rock-wallabies (Petrogale xanthopus) and Black-footed Rock-wallabies (P. lateralis) in South Australia was assessed by comparing recent survey and census data with previously collated information about the distribution and relative abundance of each taxon. Petrogale xanthopus has maintained most of its known geographic range within the state; however, its relative abundance has declined significantly and 35 (or 15%) of a total of 229 recorded colonies have become extinct since European settlement. Eight of these colony extinctions have occurred over the past 25 years; three of them since 1981. As this species is continuing to decline it should be regarded as threatened within the state. Petrogale lateralis has at least two sub-species which occur in South Australia. Petrogale lateralis pearsoni is endemic to the state and occurs on offshore islands. Since 1960 its natural occurrence of about 3-500 individuals on North Pearson Island has been expanded to four other islands through translocations and the total population is now about 700-1100 animals. This subspecies, while not occurring in large numbers, is nonetheless relatively secure due to the additional populations established and the fact that these are on islands isolated from most mainland threats. The mainland subspecies, Petrogale lateralis MacDonnell Ranges race, by comparison has suffered a drastic reduction in both geographic range and abundance to the point where it is South Australia’s most critically endangered vertebrate taxon. It has declined from being a very common species in the state’s far north- west to only two known, widely separated, colonies which total less than 100 animals between them. Management and research recommendations are provided.

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Tzu-Ching Wu ◽  
Christy M Ankrom ◽  
Arvind B Bambhroliya ◽  
Shima Borzorgui ◽  
Sean I Savitz

Objective: Access to care is an important healthcare goal but access to research is also important to patients. We sought to gain an understanding of the status of stroke research among the various stroke designated hospitals in the state and to identify regions and facilities that lack access to stroke research. Methods: Texas Department of State Health Service (TDSHS) designated stroke facilities (DSF) were surveyed using a standardized questionnaire via telephone/email to confirm stroke center status, presence of a dedicated stroke coordinator, use of telestroke services, and participation in stroke research. Stroke discharge data were obtained from TDSHS and stroke volume (by ICD) were estimated for 2013 for all non-DSF. Census data were obtained from the US Census Bureau. Results: In total, 109/136 (80%) TDSHS DSF responded to the survey. Only 32/109 (29%) of the TDSHS DSF are participating in stroke research, mostly in the 4 metropolitan areas (fig 1). We identified 16 non-DSF that have 100-149 stroke discharges, and another 21 non-DSF that have ≥ 150 stroke discharges (fig 1). Over half (53%) of the DSF in the state are utilizing telestroke services. Conclusions: Most clinical stroke research conducted in Texas is in the 4 metropolitan markets. Our findings demonstrate that over 50% or ~14 million Texans reside outside of the 4 markets and therefore may lack access to stroke research. To increase access, we identified several non-DSF in the state with substantial stroke discharges (fig 1). Academic centers and non-DSF partnering through telemedicine and other relationships should be considered to expand throughout the state opportunities for participation in stroke research.


1983 ◽  
Vol 10 (1) ◽  
pp. 47 ◽  
Author(s):  
PB Copley

Petrogale xanthopus still occurs over most of its former range in South Australia. It is widespread in the Flinders Ranges, where almost 200 colonies are now known, and is locally common in areas of both the Rinders Ranges and Olary Hills. Six colonies are currently known in the western Gawler Ranges with an outlying population on Carriewerloo Station only 50 km west of Port Augusta. Seven colonies have been found in the Olary Hills, to the north and north-west of Olary. The species has suffered a major decline in abundance since European settlement, having become extinct locally throughout this range. Hunting for skins, competition with introduced herbivores for food and shelter, and predation by foxes seem to be the main reasons for this decline. However, it is still not possible to say whether the species currently has a decreasing population and is at risk, is in equilibrium, or is increasing. Information published in this paper and current studies in South Australia and New South Wales should soon determine this.


1993 ◽  
Vol 21 (1) ◽  
pp. 45-49
Author(s):  
John Amadio

The Pitjantjatjara people in the north west of South Australia and the Yalata Community in the far west of the state identify as Anangu (the people) Anangu culture is very different in many ways from the mainstream culture largely associated with urban centres but some of the aspects in common include a desire to maintain their culture and lifestyle, wanting a favourable future for their children and their communities, and a desire to be self managing.


1962 ◽  
Vol 10 (1) ◽  
pp. 95 ◽  
Author(s):  
DA Maelzer

Aphodius tasmaniae Hope is an indigenous univoltine pest of improved pastures in South Australia. The species was rare, however, before European settlement and is still rare in areas which have not yet been developed agriculturally. Evidence is presented which suggests that A. tasmaniae is now a common species because man has supplied it with food and shelter on a vast scale.


2008 ◽  
Vol 65 (7) ◽  
pp. 1161-1174 ◽  
Author(s):  
Tom Williams ◽  
Kristin Helle ◽  
Michaela Aschan

Abstract Williams, T., Helle, K., and Aschan, M. 2008. The distribution of chondrichthyans along the northern coast of Norway. – ICES Journal of Marine Science, 65: 1161–1174. The relationship between temperature, latitude, and depth and the distribution and relative abundance of chondrichthyans along the northern coast of Norway was examined based on catches made in scientific trawls north of 62°N from 1992 to 2005. It appears that Chimaera monstrosa, Etmopterus spinax, Squalus acanthias, and Galeus melastomus were more abundant in the south, and Amblyraja radiata more common in the north. Between 1992 and 2005, the distribution and relative abundance did not appear to change significantly, although average water temperatures rose during the period. Current fishing levels do not appear to be impacting the populations of the more common species, but the status of species rarely found in the survey catches is unclear.


2021 ◽  
Author(s):  
Daniel P. Cariveau ◽  
Michael Roswell ◽  
Tina Harrison ◽  
Mark A. Genung ◽  
Jason Gibbs ◽  
...  

Installing pollinator habitat is a ubiquitous conservation tool, but little is known about which pollinator taxa require support, or which benefit from habitat installations. We studied the response of rare and common bees to pollinator habitat enhancement. We used independent regional datasets to designate bee species as common or rare based on their rank according to one of three metrics: a) site occurrence frequency, b) local relative abundance, and c) geographic range size. We asked whether the abundance or richness of rare and common bees were greater in pollinator habitat, relative to old-field controls. Because we used an arbitrary, quantile-based cutoff to categorize species rarity, we conducted sensitivity analysis and controlled for rarity classification errors with a null model. With this null model, we determined whether rare and/or common species responded to pollinator habitat disproportionately, compared to the expectation for "typical" bee species. We found that the number of individuals and of species designated as rare based on local relative abundance was greater in pollinator habitat enhancements. The number of individuals from bee species designated as rare based on site occurrence was lower in pollinator habitat enhancements, but the number of species was not clearly different between habitat types. We did not find a clear positive nor negative effect of habitat enhancement for species designated rare based on geographic range size. For all three rarity metrics, common species increased in abundance and richness in pollinator habitat relative to controls. Null models indicated that in most cases, neither rare nor common species disproportionately benefited from pollinator habitat. Synthesis and Applications: Our results suggest that pollinator habitat can lead to an increase in the abundance and richness of bees, including species that are rare and that are common. However, rare species appeared to respond differently than typical species, and depending on how species were classified as rare, could display muted or even negative responses to habitat enhancement. Targeting rare species with specific floral resources or unique habitat types may lead to better outcomes for rare and threatened species.


2017 ◽  
Vol 4 (01) ◽  
Author(s):  
Chittaranjan Nayak ◽  
Prasanta Patri

Proper sanitation, hygiene and cleanliness are some of the key indicators of quality of life. The present paper attempts to study the status of sanitation in rural Odisha and explore its determinants. The paper is based on both primary as well as secondary data. The relative position of districts in rural sanitation is analysed with help of census data. The analysis observes that there is a significant regional divide in ‘access to toilets’ across the districts of Odisha. The backward districts are lying way below the relatively advanced coastal districts of the state. Moreover, for an investigation at a disaggregated level, we had taken 109 households from a village cluster for a case study. The study observes that caste category, occupation and government subsidy are the important factors influencing the sanitary practices of the study areas. The paper advocates for continuance of government subsidy with better targeting, and a massive awareness drive by the government to change the sordid state of open defecation in the state.


2000 ◽  
Vol 27 (4) ◽  
pp. 379 ◽  
Author(s):  
A. C. Robinson ◽  
C. M. Kemper ◽  
G. C. Medlin ◽  
C. H. S. Watts

Thirty species of rodents are recorded from South Australia. At the time of European settlement, the State probably supported at least 19 species of native rodents. Eight additional species have been recorded only in subfossil material. At least 11 species are now considered to be extinct and there have been significant declines in all the other species as a result of over 150 years of European influence. In addition, three species have been introduced to the State since European settlement. Over the last ten years, there has been a significant increase in our understanding of the distribution and ecology of what remains of the rodent fauna through a series of systematic, site-based biological surveys, a significant increase in research on subfossil and owl pellet remains, documentation of Aboriginal ecological knowledge and ecological and distributional studies on three species. This paper describes our current state of knowledge of the distribution, ecology and threats to the South Australian rodent fauna and makes suggestions for future research and conservation management.


1959 ◽  
Vol 91 (1) ◽  
pp. 15-28 ◽  
Author(s):  
Franklin B. Lewis

Early in the course of a study of the dipteran family Ceratopogonidae,it was realized that very little was known about the species composition, both in numbers and kind, in the state of Connecticut. Consequently a sltudy was set up to determine the species present and the relative abundance of the more common forms. The results of this study are presented in this paper.


Author(s):  
Larysa Bodnar ◽  
Petro Koval ◽  
Sergii Stepanov ◽  
Liudmyla Panibratets

A significant part of Ukrainian bridges on public roads is operated for more than 30 years (94 %). At the same time, the traffic volume and the weight of vehicles has increased significantly. Insufficient level of bridges maintenance funding leads to the deterioration of their technical state. The ways to ensure reliable and safe operation of bridges are considered. The procedure for determining the predicted operational status of the elements and the bridge in general, which has a scientific novelty, is proposed. In the software complex, Analytical Expert Bridges Management System (AESUM), is a function that allows tracking the changes in the operational status of bridges both in Ukraine and in each region separately. The given algorithm of the procedure for determining the predicted state of the bridge using a degradation model is described using the Nassie-Schneidermann diagram. The model of the degradation of the bridge performance which is adopted in Ukraine as a normative one, and the algorithm for its adaptation to the AESUM program complex with the function to ensure the probabilistic predicted operating condition of the bridges in the automatic mode is presented. This makes it possible, even in case of unsatisfactory performance of surveys, to have the predicted lifetime of bridges at the required time. For each bridge element it is possible to determine the residual time of operation that will allow predict the state of the elements of the structure for a certain period of time in the future. Significant interest for specialists calls for the approaches to the development of orientated perspective plans for bridge inspection and monitoring of changes in the operational status of bridges for 2009-2018 in Ukraine. For the analysis of the state of the bridge economy, the information is available on the distribution of bridges by operating state related to the administrative significance of roads, by road categories and by materials of the structures. Determining the operating state of the bridge is an important condition for making the qualified decisions as regards its maintenance. The Analytical Expert Bridges Management System (AESUM) which is implemented in Ukraine, stores the data on the monitoring the status of bridges and performs the necessary procedures to maintain them in a reliable and safe operating condition. An important result of the work is the ability to determine the distribution of bridges on the public roads of Ukraine, according to operating conditions established in the program complex of AESUM, which is presented in accordance with the data of the current year. In conditions of limited funding and in case of unsatisfactory performance of surveys, it is possible to make the reasonable management decisions regarding the repair and the reconstruction of bridges. Keywords: bridge management system, operating condition, predicted operating condition, model of degradation, bridge survey plan, highway bridge.


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