The impact of varying food availability on health and welfare in mice: Testing the Match-Mismatch hypothesis

We investigated the impact of fish cage culture on the zooplankton community structure in a tropical reservoir. We hypothesized that community abundance is greater near cages and increases over time due to the increase in food availability. Samplings were performed near, upstream and downstream from net cages, and before and after net cage installation. The abundance of zooplankton increased 15 days after the experiment was set up, followed by a reduction and finally increased. Rotifer abundance showed significant differences among sites (p<0.05) and sampling periods (p<0.001). Significant differences were also observed in total zooplankton and cladoceran abundance (p<0.001). The spatial and temporal variation of the physical and chemical variables were indirectly correlated with the structure and dynamic of the zooplankton community, as they indicated the primary production in the environment. Our hypothesis was rejected, since the zooplankton was abundant at the reference site. Only rotifers showed higher abundance near cages, due to the influence of food availability. Community dynamics during the experiment was also correlated to food availability. Our results suggest an impact of fish farming on the zooplankton community.

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PARTISIPASI PETANI PADA LUMBUNG PANGAN DALAM MENINGKATKAN KETERSEDIAAN PANGAN RUMAH TANGGA DI KECAMATAN AMBARAWA, KABUPATEN PRINGSEWU

Jurnal Ilmu-Ilmu Agribisnis ◽

10.23960/jiia.v6i4.360-367 ◽

2019 ◽

Vol 6 (4) ◽

pp. 360

Author(s):

Febrina Ramadhani ◽

Indah Nurmayasari ◽

Fembriarti Erry Prasmatiwi

Keyword(s):

Food Availability ◽

Descriptive Analysis ◽

Participation Rate ◽

Analysis Method ◽

Quantitative Descriptive Analysis ◽

Household Food ◽

Household Food Availability ◽

Farmer Groups ◽

Quantitative Descriptive ◽

The Impact

This research aims to analyze the rate of household food availability, the rate of farmers’ participation, factors related to farmers’ participation rate, and the impact of the participation on the food availability. The research is a survey conducted in Ambarawa Subdistrict, Pringsewu District, as Ambarawa is an area that has many active food barns. Thirty food barn institutions were chosen randomly, and from each barn two farmers were chosen randomly as respondents. Research data is collected in September – November 2016 and analyzed by quantitative descriptive analysis method. The results showed that the rate of household food availability was 3,392.97 kkal/cap/day or equivalent to 2,135.58 kg of dried unhulled rice annually. The rate of farmers’ participation was included in a medium category. Age, membership time in barns, rice production, income, membership in farmer groups were not significantly related to farmers’ participation rate. Farmers’ participation did not have significant impact on food availability of farmer households. Key words: barns, farmer household, food availability, participation

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Assessment Model Impact of Climate Change on Potential Production for Food and Energy Needs for the Coastal Areas of Bengkulu, Indonesia

Agro Bali: Agricultural Journal ◽

10.37637/ab.v4i2.714 ◽

2021 ◽

Vol 4 (2) ◽

pp. 159-169

Author(s):

Eko Sumartono ◽

Gita Mulyasari ◽

Ketut Sukiyono

Keyword(s):

Climate Change ◽

Food Availability ◽

Crop Production ◽

Coastal Areas ◽

Appropriate Technology ◽

Assessment Model ◽

Small Scale ◽

Impact Of Climate Change ◽

Food Reserves ◽

The Impact

Bengkulu is said to be the center of the world's climate because of the influence of water conditions and the topography of the area where the rain cloud formation starts. The waters in Bengkulu Province become a meeting place for four ocean currents which eventually become an area where the evaporation process of forming rain clouds becomes the rainy or dry season and affects the world climate. Method to analyze descriptively, shows oldeman Classification and satellite rainfall estimation data is added. In relation to the Analysis of Potential Food Availability for the Coastal Areas of Bengkulu Province uses a quantifiable descriptive analysis method based. The results show that most are included in the Oldeman A1 climate zone, which means it is suitable for continuous rice but less production due to generally low radiation intensity throughout the year. In an effort to reduce or eliminate the impact of climate change on food crop production, it is necessary to suggest crop diversification, crop rotation, and the application of production enhancement technologies. Strategies in building food availability as a result of climate change are: First, develop food supplies originating from regional production and food reserves on a provincial scale. Second, Empowering small-scale food businesses which are the dominant characteristics of the agricultural economy, especially lowland rice and horticultural crops. Third, Increase technology dissemination and increase the capacity of farmers in adopting appropriate technology to increase crop productivity and business efficiency. Four, Promote the reduction of food loss through the use of food handling, processing and distribution technologies.

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A size threshold governs Caenorhabditis elegans developmental progression

Proceedings of The Royal Society B Biological Sciences ◽

10.1098/rspb.2015.1283 ◽

2015 ◽

Vol 282 (1813) ◽

pp. 20151283 ◽

Cited By ~ 22

Author(s):

Sravanti Uppaluri ◽

Clifford P. Brangwynne

Keyword(s):

Caenorhabditis Elegans ◽

Food Availability ◽

Developmental Stages ◽

Size Control ◽

Threshold Size ◽

Larval Stages ◽

Developmental Progression ◽

Order Of Magnitude ◽

Size Threshold ◽

The Impact

The growth of organisms from humans to bacteria is affected by environmental conditions. However, mechanisms governing growth and size control are not well understood, particularly in the context of changes in food availability in developing multicellular organisms. Here, we use a novel microfluidic platform to study the impact of diet on the growth and development of the nematode Caenorhabditis elegans . This device allows us to observe individual worms throughout larval development, quantify their growth as well as pinpoint the moulting transitions marking successive developmental stages. Under conditions of low food availability, worms grow very slowly, but do not moult until they have achieved a threshold size. The time spent in larval stages can be extended by over an order of magnitude, in agreement with a simple threshold size model. Thus, a critical worm size appears to trigger developmental progression, and may contribute to prolonged lifespan under dietary restriction.

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Market food diversity mitigates the effect of environment on women’s dietary diversity in the Agriculture to Nutrition (ATONU) study, Ethiopia

Public Health Nutrition ◽

10.1017/s136898001900051x ◽

2019 ◽

Vol 22 (11) ◽

pp. 2110-2119 ◽

Cited By ~ 3

Author(s):

Ramya Ambikapathi ◽

Nilupa S Gunaratna ◽

Isabel Madzorera ◽

Simone Passarelli ◽

Chelsey R Canavan ◽

...

Keyword(s):

Food Availability ◽

Market Access ◽

Dietary Diversity ◽

Diversity Index ◽

Food Groups ◽

Cross Sectional ◽

Village Level ◽

Food Diversity ◽

The Impact ◽

The Village

AbstractObjectiveIn Ethiopia, women’s dietary diversity is low, primarily due to poor food availability and access, both at home and market level. The present study aimed to describe market access using a new definition called market food diversity (MFD) and estimate the impact of MFD, crop and livestock diversity on dietary diversity among women enrolled in the Agriculture to Nutrition (ATONU) trial.DesignBaseline cross-sectional data collected from November 2016 to January 2017 were used for the analysis. Availability of foods in markets was assessed at the village level and categorized into nine food groups similar to the dietary diversity index for women. Bivariate and multivariate mixed-effects regression analyses were conducted, adjusted for clustering at the village level.SettingChicken-producing farmers in rural Ethiopia.ParticipantsWomen (n 2117) aged 15–49 years.ResultsOverall, less than 6 % of women met the minimum dietary diversity (≥5 food groups) and the most commonly consumed food groups were staples and legumes. Median MFD was 4 food groups (interquartile range: 2–8). Multivariate models indicated that women’s dietary diversity differed by livestock diversity, food crop diversity and agroecology, with significant interaction effects between agroecology and MFD.ConclusionsWomen’s dietary diversity is poor in Ethiopia. Local markets are variable in food availability across seasons and agroecological zones. The MFD indicator captures this variability, and women who have access to higher MFD in the highland agroecological zone have better dietary diversity. Thus, MFD has the potential to mitigate the effects of environment on women’s dietary diversity.

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Climate variability, vulnerability and effectiveness of farm-level adaptation options: the challenges and implications for food security in Southwestern Cameroon

Environment and Development Economics ◽

10.1017/s1355770x02000311 ◽

2002 ◽

Vol 7 (3) ◽

pp. 529-545 ◽

Cited By ~ 41

Author(s):

Ernest L. Molua

Keyword(s):

Food Security ◽

Climate Variability ◽

Food Availability ◽

Agricultural Production ◽

Agricultural Sector ◽

Soil Tillage ◽

Farm Income ◽

Steady Increase ◽

Farm Level ◽

The Impact

The risks associated with increasing climate variability pose technological and economic challenges to societies which are dependent on agriculture for their livelihood. In Southwestern Cameroon the natural variability of rainfall and temperatures contribute to variability in agricultural production and food insecurity. This paper explores the impact of climate variability in Southwestern Cameroon on food availability. It examines farm household's vulnerability to food availability relating to climate, and reviews the interplay of climate, agriculture, and prospects for food security in the region. An econometric function directly relates farm income and precipitation, in order to statistically estimate the significance of farm-level adaptation methods. The results reveal that precipitation during growing and adaptation methods through changes in soil tillage and crop rotation practices have significant effects on farm returns. An essential precondition for food security and overall agricultural development in Southwestern Cameroon is a dynamic agricultural sector brought about both by steady increase in agricultural production and by greater efforts in farmer support, to enable farm households to take advantage of the opportunities and to minimize the negative impacts of climate variation on agriculture.

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Hunger and Food Well-Being: Advancing Research and Practice

Journal of Public Policy & Marketing ◽

10.1177/0743915619827012 ◽

2019 ◽

Vol 38 (2) ◽

pp. 136-153 ◽

Cited By ~ 12

Author(s):

Melissa G. Bublitz ◽

Jonathan Hansen ◽

Laura A. Peracchio ◽

Sherrie Tussler

Keyword(s):

Food Availability ◽

Social Relationship ◽

Food Policy ◽

Task Force ◽

Well Being ◽

Food Marketing ◽

Policy Makers ◽

Research And Practice ◽

Food Literacy ◽

The Impact

This article explores the paradigm of Food Well-Being (FWB), “a positive psychological, physical, emotional, and social relationship with food,” for those who experience hunger. Building on the insights derived from two sources—research across a range of disciplines including marketing and the practices of the nonprofit Hunger Task Force to alleviate hunger and advance FWB—the authors explore the five domains of FWB: food availability, food socialization, food literacy, food marketing, and food policy as they relate to people who experience hunger. The authors establish a research contribution by extending the FWB paradigm to include people experiencing hunger and by applying this extended paradigm to illuminate the impact of hunger on people’s FWB. Finally, the authors propose research to guide researchers, policy makers, and nonprofits toward generating FWB for all.

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The Impact of Livestock and Fisheries on Food Availability and Demand in 2020

American Journal of Agricultural Economics ◽

10.2307/1244364 ◽

1997 ◽

Vol 79 (5) ◽

pp. 1471-1475 ◽

Cited By ~ 5

Author(s):

Christopher Delgado ◽

Pierre Crosson ◽

Claude Courbois

Keyword(s):

Food Availability ◽

The Impact

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The Impact of Climate Variability and Change on Food Security in Sub-Saharan Africa: Perspective from Panel Data Analysis

Sustainability ◽

10.3390/su14020759 ◽

2022 ◽

Vol 14 (2) ◽

pp. 759

Author(s):

Raïfatou Affoh ◽

Haixia Zheng ◽

Kokou Dangui ◽

Badoubatoba Mathieu Dissani

Keyword(s):

Food Security ◽

Least Squares ◽

Food Availability ◽

Co2 Emission ◽

Ordinary Least Squares ◽

Causal Link ◽

Sub Saharan Africa ◽

Food Utilization ◽

Sub Saharan ◽

The Impact

This study investigates the relationship between climate variables such as rainfall amount, temperature, and carbon dioxide (CO2) emission and the triple dimension of food security (availability, accessibility, and utilization) in a panel of 25 sub-Saharan African countries from 1985 to 2018. After testing for cross-sectional dependence, unit root and cointegration, the study estimated the pool mean group (PMG) panel autoregressive distributed lag (ARDL). The empirical outcome revealed that rainfall had a significantly positive effect on food availability, accessibility, and utilization in the long run. In contrast, temperature was harmful to food availability and accessibility and had no impact on food utilization. Lastly, CO2 emission positively impacted food availability and accessibility but did not affect food utilization. The study took a step further by integrating some additional variables and performed the panel fully modified ordinary least squares (FMOLS) and dynamic ordinary least squares (DOLS) regression to ensure the robustness of the preceding PMG results. The control variables yielded meaningful results in most cases, so did the FMOLS and DOLS regression. The Granger causality test was conducted to determine the causal link, if any, among the variables. There was evidence of a short-run causal relationship between food availability and CO2 emission. Food accessibility exhibited a causal association with temperature, whereas food utilization was strongly connected with temperature. CO2 emission was linked to rainfall. Lastly, a bidirectional causal link was found between rainfall and temperature. Recommendations to the national, sub-regional, and regional policymakers are addressed and discussed.

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Multi-species prey dynamics influence local survival in resident and wintering generalist predators

Oecologia ◽

10.1007/s00442-021-05042-2 ◽

2021 ◽

Author(s):

Daniel Oro ◽

Ana Sanz-Aguilar ◽

Francesc Carbonell ◽

Joan Grajera ◽

Ignasi Torre

Keyword(s):

Food Availability ◽

Small Mammals ◽

Temporal Variability ◽

Prey Density ◽

Environmental Stochasticity ◽

Mammal Species ◽

Local Survival ◽

Distribution Ranges ◽

Wintering Area ◽

The Impact

AbstractStochasticity in food availability influences vital rates such as survival and fertility. Life-history theory predicts that in long-lived organisms, survival should be buffered against environmental stochasticity showing little temporal variability. Furthermore, to optimize survival prospects, many animal species perform migrations to wintering areas where food availability is larger. Species with large latitudinal distribution ranges may show populations that migrate and others that are resident, and they may co-occur in winter. One example of these species is the predatory raptor buzzard Buteo buteo. Here, we test whether temporal variability in the density of five small mammal species of prey inhabiting different habitats (shrubland and forests) influences local annual survival of buzzards in a wintering area depending on their age and residency status (residents versus wintering individuals). We found that prey density explained a considerable amount of annual changes in local survival, which was higher for older and resident birds. This difference in local survival likely corresponded to philopatry to the wintering area, which was larger for residents and increased when prey density was larger. The total density of prey inhabiting open shrublands was the variable explaining more variance in temporal variability of local survival, even though the study area is mostly occupied by woodlands. Temporal population dynamics of the different small mammals inhabiting shrublands were not synchronous, which suggests that buzzards preyed opportunistically on the most abundant prey each winter. Generalist predation may buffer the impact of resource unpredictability for pulsed and asynchronous prey dynamics, typical of small mammals in winter.

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