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... Reproductive success is associated with age in many taxa, increasing in early life followed by reproductive senescence. In socially monogamous but genetically polygamous species, this generates the interesting possibility of differential trajectories of within‐pair and extra‐pair siring success with age in males. We investigate these relationships simultaneously using within‐individual analyses wi ...
... Ribosomal protein S6 (RPS6) is an indispensable plant protein regulated, in part, by ribosomal protein S6 kinase (S6K) which, in turn, is a key regulator of plant responses to stresses and developmental cues. Increased expression of RPS6 was detected in Nicotiana benthamiana during infection by diverse plant viruses. Silencing of the RPS6 and S6K genes in N. benthamiana affected accumulation of Cu ...
... BACKGROUND: The Nutrition Education for Management of Osteodystrophy trial showed that stage‐based nutrition education by dedicated dietitians surpasses existing practices in Lebanon with respect to lowering serum phosphorus among general haemodialysis patients. The present study explores the effect of nutrition education specifically on hyperphosphataemic patients from this trial. METHODS: Hyperp ...
Eciton; ant colonies; foraging; insect behavior; trail pheromones
Abstract:
... We describe an emigration of the Neotropical army ant Eciton mexicanum where the head of the emigration column was separated in time from previous raid column activity, and the emigration was not connected to the new bivouac site by a column of workers. Over 12 h elapsed between raid activity and the onset of emigration, suggesting the emigration followed a long-lasting pheromone trail. We suggest ...
... BACKGROUND: Dietary modification is critical in the self‐management of chronic kidney disease. The present study describes the accuracy, quality and health literacy demand of renal diet information for adults with kidney disease obtained from the Internet and YouTube (www.youtube.com). METHODS: A comprehensive content analysis was undertaken in April and July 2015 of 254 eligible websites and 161 ...
... Male courtship behavior and displays influence female mating decisions, and therefore affect mating success in a diverse range of organisms. While there is substantial evidence confirming that females prefer males who invest more in courtship, less attention has been paid to the relative importance of individual behaviors, and the discrete sequences of courtship that result in mating success. The ...
environmental health; fire fighting; interviews; land management; professionals; rangelands; risk; social networks; wildfires; Idaho
Abstract:
... Increases in wildfire frequency and extent in rangelands pose a growing threat to private property and ecosystem health. The state of Idaho, USA, recently promoted rangeland fire protection associations (RFPAs)—nonprofit organizations of local citizens who contribute to firefighting efforts on public rangelands—as one way to mitigate rangeland wildfire risk. This study used in-depth interviews wit ...
... Studies of coffee agroecosystems have focused on their role in providing habitat for biodiversity across a range of management intensities. These studies have not taken into account the temporal and spatial transformations in coffee landscapes and their impacts on structural heterogeneity and biodiversity, nor systematically linked these transformations to farmer management responses to price and ...
... Variations in morphological and behavioral properties of animals are generally considered as evolutionary adaptations to unpredictable environments. At the same time, individuals may present a strong consistency in their expressed behavior. In this study, we investigated inter-individual variations and consistency in walking behavior of both apterous and winged morphs of the rose aphid, Macrosiphu ...
... Effects of inducing plants by exposing them to insect herbivory, mechanical damage or damaged neighboring plants were evaluated on the oviposition preferences of Plutella xylostella. The role of plant genotypes differing in their glucosinolate hydrolysis profiles was also evaluated using a wild ecotype (Col-0) and a genetically modified line (tgg1tgg2) of Arabidopsis thaliana. While the Col-0 line ...
... Plant immunity inducers represent a new and rapidly developing field in plant-protection research. In this paper, we discuss recent research on plant immunity inducers and their development and applications in China. Plant immunity inducers include plant immunity–inducing proteins, chitosan oligosaccharides, and microbial inducers. These compounds and microorganisms can trigger defense responses a ...
... The Great Plains of the United States is a grassland region managed primarily for homogeneity associated with production agriculture. The resulting decline of obligate fauna makes enhancing biodiversity an increasingly important ecological goal. A survey was administered to land managers and the general population in ranching regions of Nebraska, Kansas, Oklahoma, and the Texas Panhandle. This res ...
... Parents can benefit from allocating limited resources nonrandomly among offspring, and offspring solicitation (i.e. begging) is often hypothesized to evolve because it contains information valuable to choosy parents. We tested the predictions of three ‘honest begging’ hypotheses – Signal of Need, Signal of Quality and Signal of Hunger – in the tadpoles of a terrestrial frog (Oophaga pumilio). In t ...
food intake; food service; hospitals; interviews; patients; user interface
Abstract:
... BACKGROUND: Active patient involvement in nutrition care may improve dietary intakes in hospital. Our team is developing an innovative programme allowing patients to self‐assess and self‐monitor their nutrition at the bedside. The present study aimed to assess usability and patient perceptions of an electronic foodservice system (EFS) for participating in nutrition care. METHODS: This qualitative ...
... The phenotype‐linked fertility hypothesis suggests that females can judge male fertility by inspecting male phenotypic traits. This is because male sexually selected traits might correlate with sperm quality if both are sensitive to factors that influence male condition. A recent meta‐analysis found little support for this hypothesis, suggesting little or no shared condition dependence. However, w ...
corporations; ethics; farmers; food production; food security; food sovereignty; governance; international trade; markets; peasantry; social networks; society; China
Abstract:
... Originating in a 1983 Mexican Government Program, the term ‘food sovereignty’ was coined in 1996 by La Via Campesina—a global peasant network—to address concerns within the civil society for food security. Rather than to accept the neoliberal framework of mainstream food security definition and governance, the food sovereignty movement seeks to view food security as the right of peoples to define ...
case studies; climate change; decision making; energy efficiency; homeowners; issues and policy; Denmark; Norway; Scandinavia
Abstract:
... In order to make existing private housing more energy efficient, various policies aim at influencing decisions made by homeowners regarding renovation and retrofitting in Scandinavia. Presenting two case studies from Denmark and Norway, we take one step back and observe the whole process of keeping a home habitable. Inspired by theories of Tim Ingold and Elizabeth Shove, we suggest calling this pr ...
... Although researchers agree that public participation in natural resource decision making is critical to institutional acceptance by stakeholders and the general public, the processes to gain public perceptions of fairness, agency trust, and acceptance of management decisions are not clear. Using results from a mail survey of Minnesota resident anglers, we used structural equation modeling to exami ...
... Increase in ownership and use of radios and mobile phones in Uganda may present opportunities for interactive and efficient agricultural extension services. Yet the impact of interactive radio on rural development has rarely been evaluated. In a participatory project, the International Union for the Conservation of Nature together with Farm Radio International and stakeholders from local governmen ...
... Theory of local adaptation predicts that nonadapted migrants will suffer increased costs compared to local residents. Ultimately this process can result in the reduction of gene flow and culminate in speciation. Here, we experimentally investigated the relative fitness of migrants in foreign habitats, focusing on diverging lake and river ecotypes of three‐spined sticklebacks. A reciprocal transpla ...
... BACKGROUND: Observational studies suggest a potentially protective role of the Mediterranean diet (MD) in allergic diseases, including asthma. Large scale randomised controlled trials (RCTs) are needed to test the hypothesised allergy‐prevention benefits of a MD during pregnancy. The present two‐arm pilot RCT in pregnant women at high‐risk of having a child who would develop allergic disease inves ...
dietitians; life skills; lifestyle; mental health; mortality; nurses; nutritional intervention; schizophrenia; teams
Abstract:
... People experiencing a severe mental illness (SMI), such as schizophrenia, schizoaffective disorder, bipolar affective disorder or depression with psychotic features, have a 20‐year mortality gap compared to the general population. This ‘scandal of premature mortality’ is primarily driven by preventable cardiometabolic disease, and recent research suggests that the mortality gap is widening. Multid ...
... The inoculation of plants with plant-growth-promoting rhizobacterium has been an effective strategy for enhancing plant salt tolerance to diminish the loss of agricultural productivity caused by salt stress; however, the signal transmitted from bacteria to the plant under salt stress is poorly understood. In this study, the salt tolerance of Arabidopsis thaliana and Zea mays was enhanced by inocul ...
... While typically insectivorous, large centipedes are known to attack and eat vertebrates. Though opportunistic, this behavior might be relatively frequent. Predation of centipedes on snakes is rarely observed. We report an incident, witnessed at the Sakaerat Biosphere Reserve, Thailand, involving the predation of a scolopendrid centipede, Scolopendra dawydoffi, on a female colubrid snake, Sibynophi ...
... BACKGROUND: The present study aimed to evaluate the nutritional status of patients undergoing haemodialysis (HD) by comparing nutritional risk scores with biochemical, anthropometric and body composition variables. METHODS: Eighty‐five individuals [65.9% male, mean (SD) age 62 (14) years] participated in a cross‐sectional study. Global Objective Assessment (GOA) and Modified Global Subjective Asse ...
behavior change; health behavior; lifestyle; obesity; weight loss
Abstract:
... Despite the significance placed on lifestyle interventions for obesity management, most weight loss is followed by weight regain. Psychological concepts of habitual behaviour and automaticity have been suggested as plausible explanations for this overwhelming lack of long‐term weight loss success. Interventions that focus on changing an individual's behaviour are not usually successful at changing ...
... Aspergillus flavus, an opportunistic pathogen, contaminates maize and other key crops with carcinogenic aflatoxins (AFs). Besides AFs, A. flavus makes many more secondary metabolites (SMs) whose toxicity in insects or vertebrates has been studied. However, the role of SMs in the invasion of plant hosts by A. flavus remains to be investigated. Cyclopiazonic acid (CPA), a neurotoxic SM made by A. fl ...
... The evolution of multicellularity is one of the key transitions in evolution and requires extreme levels of cooperation between cells. However, even when cells are genetically identical, noncooperative cheating mutants can arise that cause a breakdown in cooperation. How then, do multicellular organisms maintain cooperation between cells? A number of mechanisms that increase relatedness amongst co ...
... BACKGROUND: Cardiovascular disorders remain the leading cause of death in type 2 diabetic patients. In the present study, a systematic review and a meta‐analysis of randomised controlled trials (RCTs) were conducted aiming to evaluate the effect of magnesium supplementation on type 2 diabetes (T2D) associated cardiovascular risk factors in both diabetic and nondiabetic individuals. METHODS: PubMed ...
Americans; Mediterranean diet; alcohols; ascorbic acid; carotenoids; central nervous system diseases; cross-sectional studies; eating habits; fish; folic acid; food frequency questionnaires; green leafy vegetables; health care workers; magnesium; nuts; olive oil; patients; potassium; small fruits; telephones; women; United States
Abstract:
... BACKGROUND: Evidence exists for an association between accordance with a Mediterranean diet pattern and slower rates of cognitive decline. However, an ‘Americanised’ version of the Mediterranean diet screener is needed to assess accordance in the USA. Thus, the Mediterranean Eating Pattern for Americans (MEPA) tool was developed to assess accordance with a Mediterranean‐like food pattern when time ...
... We present evidence that populations of an invasive plant species that have become re‐associated with a specialist herbivore in the exotic range through biological control have rapidly evolved increased antiherbivore defences compared to populations not exposed to biocontrol. We grew half‐sib families of the invasive plant Lythrum salicaria sourced from 17 populations near Ottawa, Canada, that dif ...
... Antigenic diversity in pathogenic microbes can be a result of at least three different processes: diversifying selection by acquired immunity, host–pathogen coevolution and/or host specialization. Here, we investigate whether host specialization drives diversity at ospC (which encodes an immunodominant surface protein) in the tick‐transmitted bacterium Borrelia afzelii. We determined prevalence an ...
Stipa; business enterprises; farm management; farming systems; grasslands; grazing; indigenous species; Australia
Abstract:
... In this article we describe a movement to regenerate and sustainably use native grasslands using innovative grazing and cropping strategies. We find that this movement has the essential characteristics of a “community of practice” (COP) and is a strong example of a bottom-up transition toward a sustainable agroecological farming system. This COP was identified and described using participatory rur ...
animal welfare; beef; consumer attitudes; economic development; ethics; farmed animal species; food industry; geography; international organizations; livestock production; markets; politics; production technology; Africa; Asia; Brazil; Chile; Europe; Latin America; Mexico
Abstract:
... In recent years, animal welfare has become an important element of sustainable production that has evolved along with the transformation of animal production systems. Consumer attitudes towards farm animal welfare are changing around the world, especially at emerging markets of Asia, Africa and Latin America. Survey-based research on consumer attitudes towards farm animal welfare has increased. Ho ...
... Substrate-borne signals are widely used in Hemiptera and are known to be utilized in mate searching and recognition. Within this Order, the superfamily Psylloidea is a diverse taxon which uses this type of signal modality during mating behavior between the two sexes. This study describes and compares the previously unreported vibrational communication of two closely related species of Macrohomotom ...
... Although it is well established theoretically that selective interference among mutations (Hill–Robertson interference) favours meiotic recombination, genomewide mean rates of mutation and strengths of selection appear too low to support this as the mechanism favouring recombination in nature. A possible solution to this discrepancy between theory and observation is that selection is at least inte ...
... That death is not a welfare issue appears to be a widespread view among animal welfare researchers. This paper demonstrates that this view is based on a mistaken assumption about harm, which is coupled to ‘welfare’ being conceived as ‘welfare at a time’. Assessments of welfare at a time ignore issues of longevity. In order to assess the welfare issue of death, it is necessary to structure welfare ...
Antonio Biondi; Xingeng Wang; Jeffrey C. Miller; Betsey Miller; Peter W. Shearer; Lucia Zappalà; Gaetano Siscaro; Vaughn W. Walton; Kim A. Hoelmer; Kent M. Daane
... Insect parasitoids are often manipulated to improve biological control programs for various arthropod pests. Volatile compounds can be a relevant cue used by most parasitoid hymenoptera for host or host microhabitat location. Here, we studied olfactory responses of the braconid Asobara japonica Belokobylskij, an Asiatic endoparasitoid of the invasive pest Drosophila suzukii (Matsumura), toward its ...
curriculum; dietetics; dietitians; food service management; models; public health; students; surveys; t-test
Abstract:
... BACKGROUND: Student confidence is an important contributor to a successful professional placement experience. The present study aimed to evaluate a placement preparation program for student dietitians and to assess the impact on self‐rated confidence with respect to commencing placements. METHODS: The present study is part of a design‐based research approach that involves students in a cyclic enqu ...
birds; body size; bursa of Fabricius; evolution; immune response; life history; neoplasm cells; neoplasms; Denmark
Abstract:
... Cancer and tumours may evolve in response to life‐history trade‐offs between growth and duration of development on one hand, and between growth and maintenance of immune function on the other. Here, we tested whether (i) bird species with slow developmental rates for their body size experience low incidence of tumours because slow development allows for detection of rapid proliferation of cell lin ...
Tigriopus californicus; alleles; environmental factors; females; frequency dependent selection; loci; males; models; population structure; progeny; seasonal variation; sex chromosomes; sex determination; sex ratio
Abstract:
... R. A. Fisher predicted that individuals should invest equally in offspring of both sexes, and that the proportion of males and females produced (the primary sex ratio) should evolve towards 1:1 when unconstrained. For many species, sex determination is dependent on sex chromosomes, creating a strong tendency for balanced sex ratios, but in other cases, multiple autosomal genes interact to determin ...
... BACKGROUND: The early childhood years represent a period of rapid growth and development characterised by unique requirements for energy and individual nutrients. METHODS: The present study uses data from the National Pre‐School Nutrition Survey, a nationally representative sample of Irish children (1–4 years) (n = 500), aiming to estimate energy and nutrient intakes across age and compliance with ...
... The plum curculio Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae) is a major pest of pome and stone fruit, but will also attack other fruits. Males produce the aggregation pheromone grandisoic acid; emitting only the (+)-enantiomer which is attractive to both sexes of the univoltine and multivoltine strains, while the synthetic racemic mixture contains optical isomers with equal amount ...
communication skills; dietetics; dietitians; females; health services; health status; hospital food service; interviews; males; malnutrition; nutrition knowledge; occupations; patients; surveys; weight gain
Abstract:
... BACKGROUND: Governing organisations for health services currently recommend a patient‐centred (PC) approach to practice for all health professions, including dietetics. For the vulnerable older malnourished patient, this approach needs to be prioritised to improve outcomes. The paucity of patient experience data likely limits evidence‐based, patient‐centred care (PCC) from being implemented effect ...
Hymenoptera; Wolbachia; arthropods; endosymbionts; hosts; latitude; parthenogenesis; sex determination; surveys
Abstract:
... Female‐producing parthenogenesis can be induced by endosymbionts that increase their transmission by manipulating host reproduction. Our literature survey indicates that such endosymbiont‐induced parthenogenesis is known or suspected in 124 host species from seven different arthropod taxa, with Wolbachia as the most frequent endosymbiont (in 56–75% of host species). Most host species (81%, 100 out ...
... Many animals provide parental care to offspring. Parental sex‐roles vary extensively across taxa, and such patterns are considered well documented. However, information on amphibians is lacking relative to other vertebrate groups. We combine natural history observations with functional and historical analyses to examine the evolution of egg care in glassfrogs (Centrolenidae). Parental care was con ...
... The softshell turtles (Trionychidae) are one of the most widely distributed reptile groups in the world, and fossils have been found on all continents except Antarctica. The phylogenetic relationships among members of this group have been previously studied; however, disagreements regarding its taxonomy, its phylogeography and divergence times are still poorly understood as well. Here, we present ...
... Tyrophagus putrescentiae (Schrank) (Sarcoptiformes: Acaridae) is a serious pest of post-harvest durable stored food products for which traps are being developed as important tools for integrated pest management. This work addresses the effects of trap design, trap location, time of response, and light on the orientation of released groups of 7200 pedestrian T. putrescentiae to food-baited traps in ...
... This paper explores food commoning through an ethnographic case study in Catalonia as our primary site while the Norwegian case is juxtaposed as a comparison, two agriculturally and economically different European countries. The ethnography analyses cooperation networks between organic food producers’ and consumers’ involving different nodes of community gardening initiatives, self-employed grower ...
children; death; environmental factors; epidemiology; females; longevity; mortality; natural selection; pregnancy; sex ratio; women; Sweden
Abstract:
... Natural selection presumably conserved mechanisms that allow females to block or terminate gestation when environmental circumstances threaten the survival of offspring. One example of this adaptive reproductive suppression, the Bruce effect, has been identified in several species, both in the laboratory and in the wild. Although descriptive epidemiology reports low fertility among women experienc ...