Prediction of the distribution and abundance of small mammals in the eucalypt forests of south-eastern Australia from airborne videography

1999 ◽  
Vol 26 (5) ◽  
pp. 641 ◽  
Author(s):  
N. C. Coops ◽  
P. C. Catling
Keyword(s):  
Forest Structure ◽  
Habitat Complexity ◽  
Mammalian Species ◽  
Species Abundance ◽  
Strong Positive Relationship ◽  
Eastern Australia ◽  
Spatial Estimates ◽  
Forested Landscapes ◽  
Eucalypt Forests ◽  
The Relationship

The relationship between forest structure or habitat complexity and distribution and abundance has been demonstrated for a variety of mammalian species in the southern forests of Australia. Recently, studies that utilise airborne videography data have predicted forest structure across forested landscapes. This paper unites these two fields of research. Existing models of species abundance were applied to spatial estimates of habitat complexity to produce predictions of the distribution and abundance of two small ground-dwelling mammals commonly found in eucalypt forests. The spatial estimates of habitat complexity were extrapolated across the landscape from videography at 2-m spatial resolution on four 1-km 2 study areas. To examine the accuracy of the abundance predictions, trapping grids for the two species were established across a range of abundances. Linear regression showed a strong positive relationship between the predicted distribution and abundance from the videography and the recorded distribution and abundance for the species.

Utilising Airborne Multispectral Videography to Predict Habitat Complexity in Eucalypt Forests for Wildlife Management *Further information about this research can be found on the World Wide Web at http://www.ffp.csiro.au/nfm/mdq/

1997 ◽  
Vol 24 (6) ◽  
pp. 691 ◽  
Author(s):  
N. C. Coops ◽  
P. C. Catling
Keyword(s):  
Forest Structure ◽  
Habitat Complexity ◽  
Near Infrared ◽  
Ground Cover ◽  
Mammalian Fauna ◽  
Variable Response ◽  
Local Variance ◽  
Eucalypt Forests ◽  
Difficult Terrain ◽  
The Relationship

Airborne videographic remote sensing is a relatively recent technology thatcan provide inexpensive and high-spatial-resolution imagery for forestmanagement. This paper presents a methodology that allows videographic data tobe modelled to predict habitat complexity in eucalypt forests.Within the eucalypt forests of south-eastern New South Wales, plots werelocated on the imagery, and the local variance of the videography within eachplot was computed on the assumption that changes in local variance provided anindication of forest structure, and thus the habitat complexity of the site.The near- infrared (NIR) channel demonstrated the most variation, as thatchannel provided an indication of photosynthetic activity and, as a result,the variation between canopy, understorey, ground cover, soil and shadowprovided a highly variable response in the video imagery. Habitat-complexityscores were used to record forest structure, and the relationship between theNIR variance and field habitat-complexity scores was highly significant(P < 0·001)(r2 = 0·75;n = 29). From this relationship, maps of thehabitat-complexity scores were predicted from the videography at 2-m spatialresolution. The model was extrapolated across a 1 1 km subset of the videodata and field verification showed that the predicted scores correspondedclosely with the field scores.Studies have demonstrated the relationship between habitat-complexity scoresand the distribution and abundance of different mammalian fauna. This methodallows predictions of habitat-complexity scores to be spatially extrapolatedand used to stratify the landscape into regions for both the modelling offaunal habitat and to predict the composition, distribution and abundance ofsome faunal groups across the landscape. Ultimately, the management of foresthabitats for wildlife will depend on the availability of accurate maps of thediversity and extent of habitats over large areas and/or in difficult terrain.

INTERCONNECTION OF SUSTAINABLE DEVELOPMENT COMPONENTS FOR THE INDIGENOUS PEOPLES OF THE NORTH

2020 ◽  
Vol 2 (8) ◽  
pp. 101-110
Author(s):  
N. N. ILYSHEVA ◽  
◽  
E. V. KARANINA ◽  
G. P. LEDKOV ◽  
E. V. BALDESKU ◽  
...  
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Economic Development ◽  
Indigenous Peoples ◽  
Ecological Footprint ◽  
Positive Relationship ◽  
The North ◽  
Strong Positive Relationship ◽  
The Face ◽  
The Relationship

The article deals with the problem of achieving sustainable development. The purpose of this study is to reveal the relationship between the components of sustainable development, taking into account the involvement of indigenous peoples in nature conservation. Climate change makes achieving sustainable development more difficult. Indigenous peoples are the first to feel the effects of climate change and play an important role in the environmental monitoring of their places of residence. The natural environment is the basis of life for indigenous peoples, and biological resources are the main source of food security. In the future, the importance of bioresources will increase, which is why economic development cannot be considered independently. It is assumed that the components of resilience are interrelated and influence each other. To identify this relationship, a model for the correlation of sustainable development components was developed. The model is based on the methods of correlation analysis and allows to determine the tightness of the relationship between economic development and its ecological footprint in the face of climate change. The correlation model was tested on the statistical materials of state reports on the environmental situation in the Khanty-Mansiysk Autonomous Okrug – Yugra. The approbation revealed a strong positive relationship between two components of sustainable development of the region: economy and ecology.

scholarly journals The relationship between fasting-induced torpor, sleep and waking in laboratory mice

SLEEP ◽  
2021 ◽  
Author(s):  
Yi-Ge Huang ◽  
Sarah J Flaherty ◽  
Carina A Pothecary ◽  
Russell G Foster ◽  
Stuart N Peirson ◽  
...  
Keyword(s):  
Body Temperature ◽  
Rem Sleep ◽  
Brain Activity ◽  
Mammalian Species ◽  
Nrem Sleep ◽  
Laboratory Mice ◽  
State Classification ◽  
Metabolic Suppression ◽  
The Relationship ◽  
Electroencephalogram Eeg

Abstract Study objectives Torpor is a regulated and reversible state of metabolic suppression used by many mammalian species to conserve energy. Whereas the relationship between torpor and sleep has been well-studied in seasonal hibernators, less is known about the effects of fasting-induced torpor on states of vigilance and brain activity in laboratory mice. Methods Continuous monitoring of electroencephalogram (EEG), electromyogram (EMG) and surface body temperature was undertaken in adult, male C57BL/6 mice over consecutive days of scheduled restricted feeding. Results All animals showed bouts of hypothermia that became progressively deeper and longer as fasting progressed. EEG and EMG were markedly affected by hypothermia, although the typical electrophysiological signatures of NREM sleep, REM sleep and wakefulness enabled us to perform vigilance-state classification in all cases. Consistent with previous studies, hypothermic bouts were initiated from a state indistinguishable from NREM sleep, with EEG power decreasing gradually in parallel with decreasing surface body temperature. During deep hypothermia, REM sleep was largely abolished, and we observed shivering-associated intense bursts of muscle activity. Conclusions Our study highlights important similarities between EEG signatures of fasting-induced torpor in mice, daily torpor in Djungarian hamsters and hibernation in seasonally-hibernating species. Future studies are necessary to clarify the effects on fasting-induced torpor on subsequent sleep.

Career Plateau and Turnover Intention in Chinese Employees: Career Anchor as Moderator

2015 ◽  
Vol 43 (5) ◽  
pp. 757-766 ◽  
Author(s):  
Yueran Wen ◽  
Liu Liu
Keyword(s):  
Turnover Intention ◽  
Positive Relationship ◽  
Management Practices ◽  
Career Anchor ◽  
Career Plateau ◽  
Strong Positive Relationship ◽  
High Level ◽  
The Relationship ◽  
Moderating Role

Based on a survey of 147 Chinese employees, we examined the relationship between perceived career plateau and turnover intention, and the moderating role of career anchor in challenge in this process. We hypothesized that perceived career plateau would be positively related to turnover intention, and that this relationship would be stronger in employees with a higher level of career anchor in challenge than in those with a lower level. The results showed that perceived career plateau had a strong positive relationship with turnover intention, especially in employees with a high level of career anchor in challenge. These findings have implications for research in career development and turnover intention, as well as in management practices.

scholarly journals HUBUNGAN DISPOSISI MATEMATIS DAN SELF-EFFICACY MAHASISWA

2021 ◽  
Vol 10 (1) ◽  
pp. 117
Author(s):  
Wanda Tri Utami ◽  
Ali Mustadi ◽  
Marsigit Marsigit ◽  
Ibrahim Ibrahim
Keyword(s):  
Data Analysis ◽  
Self Efficacy ◽  
Positive Relationship ◽  
Questionnaire Data ◽  
Public And Private ◽  
Spearman's Rho ◽  
Strong Positive Relationship ◽  
Spearman’S Rho ◽  
Quantitative Descriptive ◽  
The Relationship

The writing of this article is a survey research with the aim of knowing the relationship between mathematical disposition and self-efficacy of PGSD/ PGMI students in universities throughout Indonesia. This study used a total of 37 public and private universities with 357 students using questionnaire data collection techniques. The data obtained were analyzed using quantitative descriptive. In addition, data analysis used Spearman's Rho. The results explained that the mathematical disposition with self-efficacy of PGSD / PGMI students in Indonesia based on the average questionnaire filling reached a correlation coefficient of 0.612 which was included in the very strong category. Sig. Value (2-tailed) obtained 0,000 which is smaller than 0.01 which means that there is a significant relationship between mathematical disposition variables and self-efficacy. This caused a strong positive relationship between mathematical disposition and student self-efficacy. AbstrakPenulisan artikel ini merupakan penelitian survei dengan tujuan mengetahui hubungan disposisi matematis dan self-efficacy mahasiswa PGSD/PGMI yang berada di Universitas se-Indonesia. Penelitian ini menggunakan subjek yang berjumlah 37 universitas negeri dan swasta dengan 357 mahasiswa dengan tekhnik pengumpulan data penyebaran angket. Data yang diperoleh dianalisis menggunakan deskriptif kuantitatif. Selain itu, analisis data menggunakan Spearman’s Rho. Hasil penelitian menjelaskan bahwa disposisi matematis dengan self-efficacy mahasiswa PGSD/PGMI yang berada di Indonesia berdasarkan rata-rata pengisian angket mencapai koefisien korelasi 0.612 yang termasuk dalam kategori sangat kuat. Nilai Sig. (2-tailed) didapat 0.000 yang lebih kecil dari 0.01 yang memiliki makna bahwa terdapat hubungan signifikan antara variabel disposisi matematis dengan self-efficacy. Hal tersebut menyebabkan hubungan positif yang kuat antara disposisi matematis dengan self-efficacy mahasiswa. 

scholarly journals RELATIONSHIP BETWEEN BEHAVIOR OF THE AGRICULTURAL EXTENSION WORKERS AND FARMERS’ SATISFACTION WITH THE EXTENSION SERVICES IN KURA LOCAL GOVERNMENT, KANO STATE, NIGERIA

2020 ◽  
pp. 43-52
Author(s):  
Ali Giginyu ◽  
Danladi Bala
Keyword(s):  
Local Government ◽  
Agricultural Extension ◽  
Descriptive Statistics ◽  
Sampling Frame ◽  
Strong Positive Relationship ◽  
Extension Work ◽  
Research Findings ◽  
The Relationship ◽  
Satisfaction With Services ◽  
Extension Staff

The study was conducted to determine the attitude of extension staff towards agricultural extension work, examine the nature of the relationship between farmers and agricultural extension staff, examine the scope of farmers’ satisfaction with services provided by extension workers, and determine the challenges affecting effective relationship between farmers and agricultural extension staff in Kura Local Government, Kano State, Nigeria. The population of the study was 2567 registered farmers and 8 qualified Extension workers. Questionnaire was used as an instrument for data collection. 80 respondents were used as the sampling frame. The data were analyzed using descriptive statistics i.e. percentage and frequency count. The research findings revealed that there is strong positive relationship between behavior of Agricultural Extension Workers and farmers satisfaction, the findings of the study indicated, among others, that the challenges affecting relationship between the farmers and the Extension Staff in the study area included staff inadequacy, slow process and the attitude of the Extension Workers toward Agricultural Extension exercise included dedication to duty, positive manners, among the others. Additionally, the findings indicated that the nature of the relationship between the farmers and Agricultural Extension Workers was based on Extension workers farm visit, response to request and enquiries by the farmers and friendliness to the farmers. It is therefore, recommended that the number of Extension workers should be added and welfare package of the Extension Workers should be improved to avoid delay in the process, to mention but a few.

The Relationship between Energy Consumption and Climate Change in Shanghai

2012 ◽  
Vol 524-527 ◽  
pp. 2388-2393 ◽  
Author(s):  
Nan Wang ◽  
Mahjoub Elnimeiri
Keyword(s):  
Climate Change ◽  
Energy Consumption ◽  
Energy Use ◽  
Fossil Fuel ◽  
Average Temperature ◽  
The Past ◽  
Strong Positive Relationship ◽  
The Relationship ◽  
Annual Average Temperature ◽  
Fossil Fuel Energy

The phenomenon of climate change is becoming a global problem. One of the most important reasons of climate change is the increase in CO2 levels due to emissions from fossil fuel energy use in daily human activities. This research will use the data of the annual average temperature and energy consumption in the past 41 years of Shanghai, the largest city in China, to establish the statistical relationship between climate change and energy consumption. It is found that there is a strong positive relationship between climate change and energy consumption in Shanghai. The phenomenon of climate change could be controlled by reducing excessive energy consumption in people’s daily life. Furthermore, this paper will also discuss the reason of such relationship, and provide suggesstions of saving energy and protecting our environment.

Uraba lugens (eucalypt leaf skeletonizer).

2021 ◽  
Author(s):  
Lisa Berndt
Keyword(s):  
New Zealand ◽  
Western Australia ◽  
Timber Production ◽  
Native Range ◽  
Natural Forests ◽  
Eastern Australia ◽  
Important Pest ◽  
Eucalypt Forests

Abstract U. lugens was first considered a serious pest of natural eucalypt forests in Western Australia in 1983 when the first severe outbreak occurred there (Strelein, 1988). Prior to that it was widely known as a pest of eucalypt forests in eastern Australia (Campbell, 1962; Harris, 1974). As these natural forests are or were managed for timber production, it is considered an economically important pest in its native range. Damage to amenity trees is also a common problem, although few trees are killed by this defoliation (Anonymous, 1979).U. lugens was recorded as invasive in New Zealand by Crabtree (1997). In its exotic range it has become a significant pest of amenity trees, particularly Lophestemon confertus (Australian brush box), which is commonly planted in some parts of Auckland City (Kriticos et al., 2007).

Socioeconomic Status and Orofacial Clefts in Scotland, 1989 to 1998

2003 ◽  
Vol 40 (5) ◽  
pp. 481-485 ◽  
Author(s):  
J. D. Clark ◽  
P. A. Mossey ◽  
L. Sharp ◽  
J. Little
Keyword(s):  
Risk Factors ◽  
Socioeconomic Status ◽  
Cleft Lip ◽  
Population Based ◽  
Orofacial Clefts ◽  
Smoking During Pregnancy ◽  
Live Births ◽  
Strong Positive Relationship ◽  
The Relationship ◽  
Deprived Areas

Objective The purpose of this study was to investigate the association between socioeconomic status and orofacial clefts (OFC) in Scotland. Design Study of prevalence at birth over a 10-year period using an area-based measure of material deprivation. Setting Population-based study throughout Scotland. Participants Eight hundred thirty-four live births with OFC born between January 1, 1989, and December 31, 1998, ascertained from the nationwide register of the Cleft Service in Scotland, compared with the total 603,825 live births in Scotland in this period. Results There was a strong positive relationship whereby the prevalence of OFC at birth increased with increasing deprivation. This trend was statistically significant for cleft lip and/or palate (CL[P]: p = .016) but not for cleft palate (CP; p = .078). For each type of cleft, the relative risk among those resident in the most deprived areas, compared with those resident in the least deprived areas, was 2.33. Conclusions The association between OFC and socioeconomic status is consistent with a report for an earlier period in a smaller part of Scotland. Unlike the earlier study, this pattern appears to be stronger for CL(P) than for CP. These observations do not appear to be an artifact of recording. It is possible that they reflect the association between deprivation and risk factors for OFC, most likely tobacco smoking during pregnancy. Because the relationship between OFC and socioeconomic status appears to have been virtually unstudied in other populations, it would be valuable to investigate this relationship elsewhere and determine whether known risk factors account for the relationship.

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