High rates of cannibalism and food waste consumption by dingoes living at a remote mining operation in the Great Sandy Desert, Western Australia

2020 ◽  
Vol 42 (2) ◽  
pp. 230
Author(s):  
Bradley P. Smith ◽  
Damian S. Morrant ◽  
Anne-Louise Vague ◽  
Tim S. Doherty
Keyword(s):  
Western Australia ◽  
Resource Availability ◽  
Food Resource ◽  
Mining Operation ◽  
Sandy Desert ◽  
Potential Influence ◽  
Mining Operations ◽  
Dietary Analysis ◽  
Water Provision ◽  
The Impact

Mining operations in remote Australia represent a unique opportunity to examine the impact of supplementary food and water provision on local wildlife. Here, we present a dietary analysis of dingoes living at a mine site in the Great Sandy Desert, Western Australia. A total of 270 faeces (scats) were collected from across the mine footprint on two occasions three months apart. The most frequently consumed food resource was anthropogenic (rubbish), which was found in 218 of 270 faeces (80.7% of scats and 65.3% of scat volume). Also of note was a high proportion of dingo remains, which was found in 51 of 270 faeces (18.9% of scats and 10.4% of scat volume), suggesting the occurrence of cannibalism. These findings highlight the potential influence of human-modified areas and associated resource availability on the diet of dingoes, and have implications for the environmental management of areas surrounding mining operations.

scholarly journals A Study on the Impact of Longwall-Mining Operation on the Stability of a Slope-Pillar Structure

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Wenyong Bai ◽  
Jie Zhang ◽  
Bin Wang ◽  
Jianchen Zhang ◽  
Hongru Li ◽  
...  
Keyword(s):  
Structural Model ◽  
Longwall Mining ◽  
Movement Pattern ◽  
Mining Operation ◽  
Mining Operations ◽  
Working Face ◽  
The Stability ◽  
Pillar Structure ◽  
Boundary Width ◽  
The Impact

The slope-pillar structure is defined as an artificial construction shaped by a surface highwall mining and an underground longwall mining. In order to study the impact of stress variations (induced by the longwall-mining operations) on the stability of a slope-pillar structure, No. 30101-1 working face of Nanliang Coal Mine was selected as the study subject. A series of analysis including physical similar simulation test and the theoretical analysis were conducted to study the movement pattern of the overlying strata in the working face of the slope and the loading and the stability of the pillar column revealing the mechanism of dynamic load instability of nonuniformly distributed load “slope pillar.” A “slope-pillar” reverse sliding structural model was proposed along with a newly established “slope-pillar” structural mechanical model and a formula to calculate the boundary width of the protection for the pillar under the extreme balance conditions. According to the study, the width of the protective pillar is designed at 20 m, and the roadway deformation during the working face and the stability of the pillar can satisfy the safety requirement concerning the working face, which further validates the theoretic deduction formula.

Measuring Impact of Stress in Sandwich Generation Caring for Demented Parents

GeroPsych ◽  
2014 ◽  
Vol 27 (4) ◽  
pp. 171-179 ◽  
Author(s):  
Laurence M. Solberg ◽  
Lauren B. Solberg ◽  
Emily N. Peterson
Keyword(s):  
Factor Analysis ◽  
Exploratory Factor Analysis ◽  
Social Worker ◽  
Resource Availability ◽  
Well Being ◽  
Sandwich Generation ◽  
Item Questionnaire ◽  
Significant Difference ◽  
Adult Caregivers ◽  
The Impact

Stress in caregivers may affect the healthcare recipients receive. We examined the impact of stress experienced by 45 adult caregivers of their elderly demented parents. The participants completed a 32-item questionnaire about the impact of experienced stress. The questionnaire also asked about interventions that might help to reduce the impact of stress. After exploratory factor analysis, we reduced the 32-item questionnaire to 13 items. Results indicated that caregivers experienced stress, anxiety, and sadness. Also, emotional, but not financial or professional, well-being was significantly impacted. There was no significant difference between the impact of caregiver stress on members from the sandwich generation and those from the nonsandwich generation. Meeting with a social worker for resource availability was identified most frequently as a potentially helpful intervention for coping with the impact of stress.

The Impact of Effluents from a Uranium Mine and Mill Complex in Northern Saskatchewan on Contaminant Concentrations in Receiving Waters and Sediments

1987 ◽  
Vol 22 (4) ◽  
pp. 559-569 ◽  
Author(s):  
Thomas P. Hynes ◽  
Randy M. Schmidt ◽  
Tim Meadley ◽  
Neill A. Thompson
Keyword(s):  
Major Ions ◽  
Mining Operation ◽  
Uranium Mining ◽  
Uranium Mine ◽  
Northern Saskatchewan ◽  
Receiving Waters ◽  
The Impact

Abstract Data are provided on the release of 5 radionuclides, 17 metals and 7 major ions from a uranium mining operation in northern Saskatchewan. The downstream concentration of these contaminants is documented, and the point of “no discernible impact” is determined. Sediments in a downstream lake are monitored for uranium and molybdenum, and the post-release fate of these metals is discussed.

scholarly journals Predicting the Future Distribution of Ara rubrogenys, an Endemic Endangered Bird Species of the Andes, Taking into Account Trophic Interactions

Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 94
Author(s):  
Alain Hambuckers ◽  
Simon de Harenne ◽  
Eberth Rocha Ledezma ◽  
Lilian Zúñiga Zeballos ◽  
Louis François
Keyword(s):  
Food Resource ◽  
Bird Species ◽  
Co2 Concentration ◽  
Distribution Models ◽  
Plant Resources ◽  
Term Survival ◽  
The Andes ◽  
Vegetation Models ◽  
Fertilizing Effect ◽  
The Impact

Species distribution models (SDMs) are commonly used with climate only to predict animal distribution changes. This approach however neglects the evolution of other components of the niche, like food resource availability. SDMs are also commonly used with plants. This also suffers limitations, notably an inability to capture the fertilizing effect of the rising CO2 concentration strengthening resilience to water stress. Alternatively, process-based dynamic vegetation models (DVMs) respond to CO2 concentration. To test the impact of the plant modelling method to model plant resources of animals, we studied the distribution of a Bolivian macaw, assuming that, under future climate, DVMs produce more conservative results than SDMs. We modelled the bird with an SDM driven by climate. For the plant, we used SDMs or a DVM. Under future climates, the macaw SDM showed increased probabilities of presence over the area of distribution and connected range extensions. For plants, SDMs did not forecast overall response. By contrast, the DVM produced increases of productivity, occupancy and diversity, also towards higher altitudes. The results offered positive perspectives for the macaw, more optimistic with the DVM than with the SDMs, than initially assumed. Nevertheless, major common threats remain, challenging the short-term survival of the macaw.

scholarly journals Seasonal feeding plasticity can facilitate coexistence of dominant omnivores in Neotropical streams

2021 ◽  
Author(s):  
Mayara P. Neves ◽  
Pavel Kratina ◽  
Rosilene L. Delariva ◽  
J. Iwan Jones ◽  
Clarice B. Fialho
Keyword(s):  
Seasonal Variation ◽  
Fish Species ◽  
Resource Availability ◽  
Seasonal Changes ◽  
Dry Season ◽  
Diet Overlap ◽  
Isotopic Niche ◽  
Neotropical Streams ◽  
Feeding Plasticity ◽  
The Impact

AbstractCoexistence of ecomorphologically similar species in diverse Neotropical ecosystems has been a focus of long-term debate among ecologists and evolutionary biologists. Such coexistence can be promoted by trophic plasticity and seasonal changes in omnivorous feeding. We combined stomach content and stable isotope analyses to determine how seasonal variation in resource availability influences the consumption and assimilation of resources by two syntopic fish species, Psalidodon aff. gymnodontus and P. bifasciatus, in the Lower Iguaçu basin. We also tested the impact of seasonality on trophic niche breadth and diet overlap of these two dominant omnivores. Seasonal changes in resource availability strongly influenced the consumption and assimilation of resources by the two fish species. Both species exhibited high levels of omnivory, characterized by high diversity of allochthonous resources in the wet season. Terrestrial invertebrates were the main component of diet during this season. However, in the dry season, both species reduced their isotopic niches, indicating diet specialization. High diet overlap was observed in both seasons, but the isotopic niche overlap was smaller in the dry season. Substantial reduction in the isotopic niche of P. bifascistus and a shift toward aquatic invertebrates can facilitate coexistence during this season of resource shortage. Feeding plasticity allows omnivorous fish to adjust their trophic niches according to seasonality, promoting the exploitation of different resources during periods of greater resource diversity. This seasonal variation could be an important mechanism that contributes to the resource partitioning and coexistence of dominant omnivores in Neotropical streams.

scholarly journals Impact of Industrial Pollution on Radial Growth of Conifers in a Former Mining Area in the Eastern Carpathians (Northern Romania)

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 640
Author(s):  
Cristian Gheorghe Sidor ◽  
Radu Vlad ◽  
Ionel Popa ◽  
Anca Semeniuc ◽  
Ecaterina Apostol ◽  
...  
Keyword(s):  
Air Pollution ◽  
Industrial Pollution ◽  
Radial Growth ◽  
Abies Alba ◽  
Mining Operation ◽  
Mining Area ◽  
Silver Fir ◽  
Local Pollution ◽  
Eastern Carpathians ◽  
The Impact

The research aims to evaluate the impact of local industrial pollution on radial growth in affected Norway spruce (Picea abies (L.) Karst.) and silver fir (Abies alba Mill.) stands in the Tarnița study area in Suceava. For northeastern Romania, the Tarnița mining operation constituted a hotspot of industrial pollution. The primary processing of non-ferrous ores containing heavy metals in the form of complex sulfides was the main cause of pollution in the Tarnița region from 1968 to 1990. Air pollution of Tarnița induced substantial tree growth reduction from 1978 to 1990, causing a decline in tree health and vitality. Growth decline in stands located over 6 km from the pollution source was weaker or absent. Spruce trees were much less affected by the phenomenon of local pollution than fir trees. We analyzed the dynamics of resilience indices and average radial growth indices and found that the period in which the trees suffered the most from local pollution was between 1978 and 1984. Growth recovery of the intensively polluted stand was observed after the 1990s when the environmental condition improved because of a significant reduction in air pollution.

scholarly journals The impact of piped water provision on infant mortality in Brazil: A quantile panel data approach

2010 ◽  
Vol 92 (2) ◽  
pp. 188-200 ◽  
Author(s):  
Shanti Gamper-Rabindran ◽  
Shakeeb Khan ◽  
Christopher Timmins
Keyword(s):  
Panel Data ◽  
Infant Mortality ◽  
Piped Water ◽  
Water Provision ◽  
The Impact

scholarly journals The impact of monetary incentives on general fertility rates in Western Australia

2010 ◽  
Vol 66 (4) ◽  
pp. 296-301 ◽  
Author(s):  
Amanda T Langridge ◽  
Natasha Nassar ◽  
Jianghong Li ◽  
Peter Jacoby ◽  
Fiona J Stanley
Keyword(s):  
Western Australia ◽  
Monetary Incentives ◽  
Fertility Rates ◽  
The Impact

The impact of three species of Mycosphaerella newly recorded on Eucalyptus in Western Australia

1997 ◽  
Vol 26 (2) ◽  
pp. 71 ◽  
Author(s):  
A.J. Carnegie ◽  
P. J. Keane ◽  
F. D. Podger
Keyword(s):  
Western Australia ◽  
The Impact
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