A Study of Habitat Preferences in the Grey Kangaroo

1981 ◽  
Vol 8 (2) ◽  
pp. 245 ◽  
Author(s):  
GJE Hill
Keyword(s):  
Cluster Analysis ◽  
Habitat Structure ◽  
Habitat Preferences ◽  
Faecal Pellet ◽  
Grey Kangaroo ◽  
Pellet Counts ◽  
And Cluster Analysis ◽  
Food Reserves ◽  
Open Woodland ◽  
Climax Forest

In a state forestry reserve in south-eastern Queensland, indices of grey kangaroo abundance were obtained from faecal pellet counts and were related to habitat structure by analysis of variance, multiple regression and cluster analysis. Of these, cluster analysis proved the most effective technique. Results identified a preference for habitats displaying an abundance of food reserves and shelter. Climax forest and open woodland type habitats were relatively little used.

A Technique for Estimating the Numbers of Eastern Gray Kangaroos, Macropus-Giganteus, Grazing a Given Area of Pasture

1986 ◽  
Vol 13 (3) ◽  
pp. 335 ◽  
Author(s):  
RJ Perry ◽  
ML Braysher
Keyword(s):  
Decay Rate ◽  
Relative Density ◽  
Nature Reserve ◽  
Faecal Pellet ◽  
Absolute Number ◽  
Pellet Group ◽  
Potential Error ◽  
Grey Kangaroo ◽  
Pellet Counts ◽  
Pellet Density

This paper outlines a technique for estimating, by means of faecal pellet counts, the absolute number of eastern grey kangaroos, Macropus giganteus, grazing on a given area in the A.C.T. Absolute numbers were obtained by comparing relative density of pellets on the area to be assessed, with pellet density in the grey kangaroo enclosure at Tidbinbilla Nature Reserve, which has a known area and a known kangaroo population. The decay rate of pellets in three different areas did not vary significantly. The average number of pellets per pellet group was similar in all three areas, but during drought kangaroos tended to drop fewer pellets per group. However, the potential error caused by this can be avoided if the control and test areas are assessed at the same time. The problem of defining a group is eliminated by counting individual pellets rather than groups.

Seasonal Movement PAtterns of the Eastern Grey Kangaroo in Southern Queensland

1982 ◽  
Vol 9 (3) ◽  
pp. 373 ◽  
Author(s):  
GJE Hill
Keyword(s):  
Soil Moisture ◽  
Seasonal Changes ◽  
Movement Patterns ◽  
Distribution Patterns ◽  
Faecal Pellet ◽  
Soil Moisture Storage ◽  
Seasonal Movement ◽  
Grey Kangaroo ◽  
Pellet Counts ◽  
Moisture Storage

A 2-y study was made of seasonal movement patterns of the eastern grey kangaroo, Macropus giganteus Shaw, in the Warwick district of south-eastern, and the Bollon district of south-western, Queensland. Faecal pellet counts were used to obtain indices of kangaroo usage of cleared country adjacent to cover. Kangaroos were sensitive to changes in forage status, particularly pasture phenology. As quality and quantity of forage reserves declined, animals made progressively greater use of cleared areas. This resulted in marked seasonal changes in distribution patterns. Of the variables quantified (rainfall, soil moisture storage and pasture growth), rainfall provided the best correlations with kangaroo usage of cleared country, explaining 55% (P = 0.002) of the variation in distribution at Warwick and 91% (P = 0.001) of that at Bollon.

A Study of Grey Kangaroo Density Using Pellet Counts

1981 ◽  
Vol 8 (2) ◽  
pp. 237 ◽  
Author(s):  
GJE Hill
Keyword(s):  
Faecal Pellet ◽  
Average Density ◽  
Sampling Efficiency ◽  
Faecal Pellets ◽  
Significant Variance ◽  
Pellet Group ◽  
Grey Kangaroo ◽  
Significant Difference ◽  
Pellet Counts ◽  
Pellet Density

During May and July 1978 two faecal pellet surveys were conducted to attain indices of abundance for a stable population of grey kangaroos within a 33-km2 block of state forest in southern Queensland. The study area was divided into 25-ha cells, from which approximately one-fifth were selected by random means for survey. Each cell was sampled by two parallel transects 100 m apart. Along each transect 25 regularly spaced 0.001-ha circular plots were searched for faecal pellets within particular age ranges. Results were 4634 � 19% and 5071 � 19% pellets km-2 per day respectively (Y � SE). The two surveys displayed no significant variance in estimates of average density. Preliminary surveys produced no significant difference in estimates of faecal pellet density between plots of 0.001 and 0.0003 ha. This held true for counts of pellet totals and pellet group totals. Sampling efficiency was superior for the larger plot.

Methods for Small-Scale Surveys of Grey Kangaroo Populations

1985 ◽  
Vol 12 (2) ◽  
pp. 119 ◽  
Author(s):  
GM Coulson ◽  
JA Raines
Keyword(s):  
Population Size ◽  
Survey Methods ◽  
Faecal Pellet ◽  
Critical Conditions ◽  
Small Scale ◽  
Line Transect ◽  
Faecal Pellets ◽  
Grey Kangaroo ◽  
Pellet Counts ◽  
Transect Counts

Small-scale survey methods which have previously been applied to grey kangaroos were evaluated on a population of known size. The total population size of free-ranging eastern grey kangaroos, Macropus giganteus, on Rotamah Island in the Gippsland Lakes of Victoria was determined by a drive count. Two types of small-scale survey methods were evaluated against this total: line transect counts and faecal pellet counts. The line transect estimates were not significantly different from the known population size, and grey kangaroos appear to meet the critical conditions of the models. Counts of individual faecal pellets gave an acceptable estimate of population density, whereas counts based on pellet groups had significant positive bias.

The limit of the contemporary financial system in Russia

2020 ◽  
Vol 16 (7) ◽  
pp. 1223-1245
Author(s):  
V.V. Smirnov
Keyword(s):  
Cluster Analysis ◽  
Foreign Currency ◽  
Financial System ◽  
Descriptive Statistics ◽  
High Tech ◽  
Monetary Aggregate ◽  
Internal System ◽  
Monetary Relations ◽  
And Cluster Analysis ◽  
Structural Preservation

Subject. The article focuses on the modern financial system of Russia. Objectives. I determine the limit of the contemporary financial system in Russia. Methods. The study is based on methods of descriptive statistics, statistical and cluster analysis. Results. The article shows the possibility of determining the scope of the contemporary financial system in Russia by establishing monetary relations as the order of the internal system and concerted operation of subsystems, preserving the structure of the financial system, maintaining the operational regime, implementing the program and achieving the goal. I found that the Russian financial system correlated with the Angolan one, and the real scope of the contemporary financial system in Russia. Conclusions and Relevance. As an attempt to effectively establish monetary relations and manage them, the limit of the contemporary financial system is related to the possibility of using Monetary Aggregate M0 to maintain the balance of the Central Bank of Russia. To overcome the scope of Russia’s financial system, the economy should have changed its specialization, refocusing it on high-tech export and increasing the foreign currency reserves. This can be done if amendments to Russia’s Constitution are adopted. The findings expand the scope of knowledge and create new competence in the establishment of monetary relations, order of the internal system and concerted interaction of subsystems, structural preservation of the financial system and maintenance of its operational regime.

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