Long-term Research Program Research Articles

Ethnoichthyology of Artisanal Fisheries from the Lower La Plata River Basin (Argentina)

We conducted structured surveys using photographs of 88 fish species grouped by commercial and non-commercial relevance to analyze the characteristics of the folk taxonomy of artisanal fisheries in the lower La Plata river basin (Argentina). The photographs were shown to 60 artisanal fishers from the Parana and Uruguay Rivers. Out of a set of 332 folk names recorded, monotypic names (79%) prevailed and over-differentiation (68%) was the most frequent correspondence among generic folk names. Morphology (68%) and ecology (29%) were the most common categories related to specific folk nomenclature. The number of folk names per species was lower amongst the most relevant commercial species; the percentage of species recognized decreases inversely with species relevance but increases with species body size. A comparison of species similarity based on presence/absence data in five fishing sites showed a more accurate picture of species distribution according to fishers' knowledge than that based on the scientific literature. Our observed results suggest that ethnoichthyological information can be successfully applied to improve fish conservation and fisheries management; it also provides new insights on species abundance and distribution. We conclude that the folk taxonomy method is a valuable tool for long-term monitoring research programs oriented to species conservation and resource management.

Reconciliation

Reconciliation

CCE II: Spatial and interannual variability in export efficiency and the biological pump in an eastern boundary current upwelling system with substantial lateral advection

Estimating interannual variability in carbon export is a key goal of many marine biogeochemical studies. However, due to variations in export mechanisms between regions, generalized models used to estimate global patterns in export often fail when used for intra-regional analysis. We present here a region-specific model of export production for the California Current Ecosystem (CCE) parameterized using intensive Lagrangian process studies conducted during El Niño-Southern Oscillation (ENSO) warm and neutral phases by the CCE Long-Term Ecological Research (LTER) program. We find that, contrary to expectations from prominent global algorithms, export efficiency (e-ratio = export / primary productivity) is positively correlated with temperature and negatively correlated with net primary productivity (NPP). We attribute these results to the substantial horizontal advection found within the region, and verify this assumption by using a Lagrangian particle tracking model to estimate water mass age. We further suggest that sinking particles in the CCE are comprised of a recently-produced, rapidly-sinking component (likely mesozooplankton fecal pellets) and a longer-lived, slowly-sinking component that is likely advected long distances prior to export. We determine a new algorithm for estimating particle export in the CCE from NPP (Export = 0.08 · NPP + 72 mg C m-2 d-1). We apply this algorithm to a two-decade long time series of NPP in the CCE to estimate spatial and interannual variability across multiple ENSO phases. Reduced export during the warm anomaly of 2014-2015 and El Niño 2015-2016 resulted primarily from decreased export in the coastal upwelling region of the CCE; the oligotrophic offshore region exhibited comparatively low seasonal and interannual variability in flux. The model resolves intra-regional patterns of in situ export measurements, and provides a valuable contrast to global export models.

Horst Otto Stoeckel: Clinician, Administrator, Researcher

Horst Otto Stoeckel was born September 26, 1930, in Lodz, Poland, which was part of the newly founded Second Republic of Poland until it was occupied by Nazi Germany in 1939. After World War II, his family immigrated to Meiningen, Germany, where he obtained his primary and secondary education. He attended Humboldt University and the University Hospital Charité of Berlin for his medical degree. Profs Theodor Brugsch, Karl Lohmann, and Friedrich Dost were important individuals who helped develop his interest in quantitative clinical pharmacology and pharmacokinetics. Prior to anesthesiology, Stoeckel trained in surgery, internal medicine, and obstetrics and gynecology in addition to clinical anesthesiology at a community hospital in East Germany. He completed 2 years of obligatory training to become an anesthesia specialist at the Teaching Hospital Hufeland and the Research Institute for Lung Diseases at Berlin-Buch. He also received training in anesthesia at the Humboldt University of Berlin. After escaping East Berlin through the Brandenburg Gate in August 1961, he obtained a position at the University of Heidelberg and obtained his West German board certification in anesthesiology in 1962. In the following 12-year period, Stoeckel was married, was promoted, passed his “habilitation” or lectureship period, started a family, and was granted the title of “Professor.” His administrative career began in February 1974 when he was selected as the first Chair of Anesthesiology at the University of Bonn, a position he held for 22 years. He also served as Dean of the medical school from 1980 to 1981. As Chair, he developed three areas: patient care, teaching, and research. He developed a long-term research program in the field of “Quantitative Clinical Pharmacology in Anesthesia and the Quantitative Modeling and Control in Anesthesia,” which required an interdisciplinary team of specialists in biochemistry, physics, and modern analytical methods. Over 20 years, the group's research program led to the discovery of basic algorithms providing the foundation of the automatic regulation of dosing control by the closed-loop feedback system, which is a concept important to the target-controlled infusion of intravenous and inhalation anesthetics. Following his career as a clinician, administrator, and researcher, he pursued a second career as a collector and museum founder.

Social Support, Dysfunctional Coping, and Community Reintegration as Predictors of PTSD Among Human Trafficking Survivors

ABSTRACTHuman trafficking exerts psychological effects on survivors that persist after intervention, and even after community reintegration. Effects include anxiety, depression, alienation, disorientation, aggression, suicidal ideation, attention deficit, and posttraumatic stress disorder (PTSD). Community supports and coping mechanisms may mitigate these effects. The report presented here is part of a long-term program of research to develop and test evidence-informed mental health and human capacity-building intervention programs for women and girls who are victims of trafficking. Structural equation modeling was used to assess a conditional process model (moderated mediation) of the effect of social support, coping, and community reintegration on PTSD among n = 144 girls and women. Participants received psychosocial intervention at a residential care facility for trafficking survivors. Results indicate model fit was excellent. Results indicate community reintegration indirectly influenced PTSD through its effect on perceived social support. Survivors who reported more difficulty reintegrating back into the community perceived less social support than those that reported easier community reintegration, and trafficking survivors who perceived less social support indicated more PTSD. Survivors with more PTSD symptoms tended to report using more dysfunctional coping mechanisms.

Managerial strategies to promote employee brand consistent behavior

PurposeThe purpose of this paper is to examine the role of managerial strategies in promoting employee brand consistent behavior. Using a recently developed holistic model of behavioral branding, that suggests that a wide array of managerial strategies affects the branding process, this study addresses two specific questions: what communication strategies, in the opinion of managers, sustain employee brand consistent behavior? And what are the most important factors, both contextual and related to their cognitive-emotional states, that employees think affect their brand ambassadorship behavior?Design/methodology/approachA long-term research program was conducted based on a multiple methods research strategy to answer the two questions. The choice of different methods was mainly based on the specific characteristics of the two targets: communication managers and employees. The first one based on interviews with 32 managers, and the second one based on a case study of a single company.FindingsThe results show that enablement-oriented strategies are more effective than communication-oriented strategies in sustaining employee brand builder roles. Weak employee commitment, unsatisfactory external communication, and low levels of motivation are strong contextual factors inhibiting employee attitudes to brand ambassadorship, one of the most relevant employee brand consistent behaviors in competitive contexts. The main practical implication is that companies should engage employees as brand ambassadors, not by means of prescriptions of in-role behavior, but enablement strategies leading to authentic and voluntary behaviors; besides, that companies should put a significant effort in “preparing the soil,” i.e. investing in enhancing employee commitment, level of motivation, and understanding/alignment with the external communication.Practical implicationsThe main practical implication is that companies should engage employees as brand ambassadors not by means of in-role behavior prescriptions rather by means of enablement strategies leading to authentic and voluntary behaviors. Besides, managers should invest significant efforts in enhancing employee motivation, commitment, and understanding/alignment to external communication as they represent key factors in sustaining brand ambassadorship behaviors.Originality/valueThe values of the study lies in having highlighted the crucial role of enablement-oriented strategies, and the relevance of specific contextual variables affecting the attitude of employee toward brand consistent behaviors.

COGNITIVE-BEHAVIORAL APPROACH AND THE ROLE OF PHYSICAL ACTIVITY IN THE TREATMENT OF MUSCULOSKELETAL PAIN IN ATHLETES

The importance of a cognitive-behavioral approach is richly documented in world scientific literature. In the light of the current knowledge about the determinants of pain treatment, the significance of psychological factors for the course and effects of analgesic therapy becomes more comprehensible. Many psychological processes have an influence on both the experience of pain and the treatment outcome. The factors like cognitive interpretation of pain, level of activity and emotional states of musculoskeletal pain sufferers are very important.The research referred to in this work makes a part of a long-term research programme the subsequent stages of which are analysed based on the literature of the subject that can assist in interpreting the new findings within dependencies between psychological factors and functioning in the case of the persons who cope with pain. Integration of psychological findings about attitude to pain into physical therapy treatment would seem to have potential to enhance outcomes. In this work we are presenting the problem in a context i.e. in the context of a role of cognitive-behavioral approach approach. The purpose of the article is to present the role of cognitive-behavioral approach in the field of applications that aim at supporting people who are involved in sport activity and cope with musculoskeletal pain-related ailments.

Synergy as strategy: learning from La Restinga, Canary Islands

In this paper, we draw attention to the role of synergies in marine conservation and community sustainability. Using marine protected areas (MPAs) as examples, we argue that MPAs that are carefully designed to fit the existing social systems can be instrumental in synergy building and fostering community development. Such synergy creation is an essential governance strategy that helps enhance governability as it reduces conflicts and provides opportunities for constructive cooperation among stakeholders, especially in times of crisis. We illustrate this using the case of La Restinga MPA in the Canary Islands. Based on data and experiences from long-term research programs on coastal communities in the Canary Islands in general, and La Restinga in particular, we discuss the functions of the MPA in the local contexts and describe how the MPA has transformed relationships and interactions among stakeholders, leading to different levels of synergies. While some of the interactions have not been conducive to the implementation of the MPA, strong synergies have been created, especially after the volcano eruption. The story of La Restinga offers valuable lessons about the way the community copes and responds to change, and the role that synergies play in the process.

Intervention Effect Rates as a Path to Research Relevance: Information Systems Security Example

In the current information systems security (ISS) research, new theory contributions are especially valued. This research typically reflects the following formula: Suggest a new theory (or set of constructs) of ISS and show that it is empirically supported, then suggest another new theory (or set of constructs with some linkages) and show that it is empirically supported, and so on. Despite the merits of this approach, it leaves out many important scientific aspects. For example, after more than 30 years of ISS research, (1) we know little about the conditions and situations to which new theories (or constructs) do not apply; (2) we do not know which new theories are more effective than others in solving an ISS problem; and (3) we have not demonstrated that our best research, or new theoretical contributions, can beat industry best practices or practitioners’ intuitive approaches. We suggest that ISS research be examined in terms of long-term research programs comprising four levels: metalevel research, basic research, applied research, and postintervention research. The ultimate success of such programs does not entail new theories, “contextualized theories,” or adding IT artifacts to theories; rather, it hinges on the question of which program can demonstrate the best intervention effect rate for a given ISS problem. The lack of demonstrated intervention effectiveness (e.g., by showing treatment effect rates) is one important inhibitor that may prevent ISS research from achieving relevance in practice. Without reporting such evidence, ISS research cannot overpower the folklore, fads, or industry “best practices” that often guide operations. With such treatment effect rates, evidence-based practice may become more justifiable. We believe that our ideas also can be applied to information systems research in general.

Potential Use of Ambient-Cured Geopolymers for Intermediate Level Nuclear Waste Storage

AbstractThere is growing interest in reducing the use of ordinary Portland cement (OPC) owing to its high energy consumption and CO2 emissions. An environmentally-friendly alternative is the use of geopolymers, which can potentially reduce direct CO2 emissions through the appropriate choice of raw materials, mix design, and curing regimes. In this regard geopolymer mortars are also realistic candidates for the replacement of OPC mortars in nuclear waste immobilisation applications as they provide a more durable incorporation matrix as well as suppressing the formation of radiolytic hydrogen. The advantages of geopolymers over OPC for nuclear waste immobilisation include i) lower water content as alkaline activator is the main component that drives geopolymerisation, ii) higher thermal stability (<600°-800°C) compared to OPC concrete (<300°C), iii) higher compressive strength (50-80 MPa), and iv) lower leachability of radioactive ions when the mix design and curing temperature are appropriately balanced. UNSW and ANSTO have embarked on a long-term research program to investigate the possibility of using geopolymers for the immobilisation of Intermediate Level Liquid Waste (ILLW), the focus of which will be around the influence of gamma-irradiation on the durability.

Resilience of tropical dry forest productivity to two hurricanes of different intensity in western Mexico

Tropical dry forests (TDFs) on the Pacific Coast of Mexico experience seasonal droughts and very infrequent direct hurricane disturbance. Over a 4-year period, two hurricanes made landfall in the Chamela-Cuixmala Biosphere Reserve, Hurricane Jova (category 2) in October 2011 and Hurricane Patricia (category 4) in October 2015. Our permanent long-term watershed-scale research program in the reserve provided a unique opportunity to analyze the ecosystem response to these hydrometeorological extreme events. Since 1982, we have been collecting monthly litterfall samples in 120 litter traps across five small contiguous watersheds. A direct instantaneous effect of both hurricanes was a massive deposition of green and senescent leaves, and fine woody debris to the forest floor. Hurricane-month litterfall flux largely exceeded the amount produced in any month of the pre-disturbance period (1982–2010), suggesting low resistance to hurricanes. Post-Jova recovery was fast, a response likely explained by a combination of the unusually high dry-season precipitation and higher than average total annual precipitation, coupled to a large flux of P-enriched litter and the re-sprouting response of many TDF species. Annual litterfall the year following Patricia decreased to half of that during the hurricane year, concomitant with a decrease in annual rainfall 20% below average. Ecosystem resilience seems strongly linked to post-disturbance water availability. Therefore, drought after a hurricane may limit the capacity of tropical dry forests to rapidly recover. The implications of these climate-related disturbances for forest recovery and management are discussed.

Forest ethnography: An approach to study the environmental history and political ecology of urban forests

A landscape succession paradigm has shaped much of our understanding about the processes of forest emergence and transformation in the United States. Drawing heavily from theory and method in environmental history, this paradigm has focused attention on the role of landscape-scale shifts in land use and land cover in the production of forests. The geography of cities is patchy, dynamic and heterogeneous, with change and differences occurring at much smaller scales (e.g. Jacobs 1961; Clay 1973) compared to coarse scale of stand replacing successions affecting rural forests (Grove et al. Ecosyst Health and Sustain 2(9):e01239, 2016; Pickett et al. Urban Ecosyst 20(1):1–14, 2017). Therefore, trying to understand how urban forests came to be, as well as what they are, requires a research approach that is specific to the land use dynamics of cities and attentive to the social life of urban forests. In response to this methodological gap, this paper describes a research approach called “forest ethnography,” which we are piloting in Baltimore, Maryland as part of the Baltimore Ecosystem Study (BES), one of the National Science Foundation’s urban Long-term Ecological Research Programs (LTER). As we describe, we propose that an urban forest ethnography approach can contribute to our understanding of both forest environmental history and urban political ecology.

Successional changes in trophic interactions support a mechanistic model of post-fire population dynamics.

Models based on functional traits have limited power in predicting how animal populations respond to disturbance because they do not capture the range of demographic and biological factors that drive population dynamics, including variation in trophic interactions. I tested the hypothesis that successional changes in vegetation structure, which affected invertebrate abundance, would influence growth rates and body condition in the early-successional, insectivorous gecko Nephrurus stellatus. I captured geckos at 17 woodland sites spanning a succession gradient from 2 to 48years post-fire. Body condition and growth rates were analysed as a function of the best-fitting fire-related predictor (invertebrate abundance or time since fire) with different combinations of the co-variates age, sex and location. Body condition in the whole population was positively affected by increasing invertebrate abundance and, in the adult population, this effect was most pronounced for females. There was strong support for a decline in growth rates in weight with time since fire. The results suggest that increased early-successional invertebrate abundance has filtered through to a higher trophic level with physiological benefits for insectivorous geckos. I integrated the new findings about trophic interactions into a general conceptual model of mechanisms underlying post-fire population dynamics based on a long-term research programme. The model highlights how greater food availability during early succession could drive rapid population growth by contributing to previously reported enhanced reproduction and dispersal. This study provides a framework to understand links between ecological and physiological traits underlying post-fire population dynamics.

Novel directions in molecular systems design: The case of light-transducing synthetic cells

ABSTRACTImportant progresses have been achieved in the past years in the field of bottom-up synthetic biology, especially aiming at constructing cell-like systems based on lipid vesicles (liposomes) entrapping both biomolecules or synthetic compounds. These “synthetic cells” mimic the behaviour of biological cells but are constituted by a minimal number of components. One key aspect related to this research is the energetic needs of synthetic cells. Up to now, high-energy compounds have been given in order to drive biochemical reactions inside the vesicle lumen. In order to be autonomous, synthetic cells must produce their own biochemical energy from available energy sources. At this aim we started a long-term research program focused on the construction of photoautotrophic synthetic cells, starting with the reconstitution, in active and highly oriented form, of the photosynthetic reaction centre in giant lipid vesicles (Altamura et al., PNAS 2017, 114, 3837–3842). Here we comment this first milestone by showing the synthetic biology context wherein it is developed, the future steps, and the experimental approach that might allow such an achievement.

THE ORIGIN AND DEVELOPMENT OF EXTRAGALACTIC RADIO ASTRONOMY: THE ROLE OF THE CSIRO'S DIVISION OF RADIOPHYSICS DOVER HEIGHTS FIELD STATION IN SYDNEY

Initial post-war developments in non-solar radio astronomy were inspired by Hey, Phillips and Parson's report in 1946 of an intense source of radio emission in Cygnus. This so-called 'radio star' was unique, and questions immediately were raised about its true nature. But it did not remain unique for long. Observing from Sydney, John Bolton, Gordon Stanley and Bruce Slee followed up the Cygnus discovery with more radio star detections, beginning what would evolve into a long-term multi-faceted research program and one of the mainstays of the CSIRO's Division of Radiophysics. But more than this, these early discoveries in England and in Sydney opened up a whole new field of investigation, extragalactic radio astronomy, which has remained a major area of investigation through to the present day. This paper focusses on the early years of this program when the observations were carried out at Dover Heights Field Station in Sydney, and the ways in which new developments in instrumentation that allowed a major expansion of the program eventually led to the closure of Dover Heights and the founding of the Fleurs Field Station.

Exploring the genomic basis of early childhood caries: a pilot study

ObjectiveA genetic component in early childhood caries (ECC) is theorized, but no genome‐wide investigations of ECC have been conducted. This pilot study is part of a long‐term research program aimed to: (1) determine the proportion of ECC variance attributable to the human genome and (2) identify ECC‐associated genetic loci.MethodsThe study's community‐based sample comprised 212 children (mean age=39 months; range = 30–52 months; males = 55%; Hispanic/Latino = 35%, African‐American = 32%; American Academy of Pediatric Dentistry definition of ECC prevalence = 38%). Approximately 2.4 million single nucleotide polymorphisms (SNPs) were genotyped using DNA purified from saliva. A P < 5 × 10−8 criterion was used for genome‐wide significance. SNPs with P < 5 × 10−5 were followed‐up in three independent cohorts of 921 preschool‐age children with similar ECC prevalence.Results SNPs with minor allele frequency ≥5% explained 52% (standard error = 54%) of ECC variance (one‐sided P = 0.03). Unsurprisingly, given the pilot's small sample size, no genome‐wide significant associations were found. An intergenic locus on 4q32 (rs4690994) displayed the strongest association with ECC [P = 2.3 × 10−6; odds ratio (OR) = 3.5; 95% confidence interval (CI) = 2.1–5.9]. Thirteen loci with suggestive associations were followed‐up – none showed evidence of association in the replication samples.ConclusionThis study's findings support a heritable component of ECC and demonstrate the feasibility of conducting genomics studies among preschool‐age children.

Temporal coherence of physical, chemical and biological variables in four tropical lakes (Minas Gerais, Brazil)

Abstract Aim: The main objective of this study was to evaluate the presence of temporal coherence of limnological variables and pairs of lakes considering four tropical lakes of the Rio Doce State Park, using monthly data from the Long-Term Ecological Research Program (LTER) between the years of 2004 to 2009. Methods Subsurface data (0.5 meters) from the Carioca, Dom Helvécio, Gambazinho, and Jacaré Lakes were used in the analysis. We estimated the temporal coherence from the creation of time series for each of the variables. Through these series, we calculated the Pearson correlation coefficient between all pairs of lakes (N=6) and performed the average. We also analyzed the correlation between the temporal coherence found for the different pairs of lakes and two predictors of spatial patterns: proximity and exposure to climatic factors. The spatial proximity of the lake pairs was calculated in kilometers, and the exposure to climatic factors was estimated using two metrics: surface area and surface area/mean depth ratio. Results The largest temporal coherence levels were recorded for water temperature (0.97), pH (0.78), and dissolved organic carbon (DOC) (0.74). The lowest levels were found for chlorophyll-a (0.25) and phytoplankton richness (-0.02). The average temporal coherence was 0.58. Different from other studies, no significant correlation was found between the synchronicity of the lake pairs and the differences in their exposure to climatic factors. Also, no relation was found with the spatial proximity. Conclusions Our results demonstrate the existence of temporal coherence in tropical lakes to compatible levels with those found in temperate regions. Our work contributes to the knowledge of how synchronicity works at different set of lakes and climatic regions.

The ecological integrity of the Lower Olifants River, Limpopo province, South Africa: 2009–2015 – Part A: Olifants River main stem

The major rivers of the South African ‘Lowveld’ (low-latitude savanna) suffer numerous impacts from upstream economic activities. Whereas monitoring these rivers is required to detect biodiversity losses, record pollution events and devise mitigation strategies, current monitoring programmes are inadequate. In 2009, the South African Earth Observation Network initiated an intensive long-term research programme on the Lowveld reaches of the Olifants River. Physico-chemical parameters, aquatic macroinvertebrates and fish abundances were recorded at four Lowveld sites in the Olifants River. We review six years of this programme. The results suggest deterioration in the ecological condition of the Olifants River with no discernible improvement through protected areas. Trends could not be detected. The parameters measured, sampling methods and/or sampling frequency might be responsible for the limited trends observed, or alternatively the results simply reflect stable conditions despite on-going pollution. Real time monitoring and an expansion in the parameters monitored would add value to the monitoring programme.

Field Investigation of Service Performance of Concrete Bridges Exposed to Tropical Marine Environment

A preliminary field inspection by the DRR (Department of Rural Roads, Thailand) revealed deficient significantly deteriorated highway bridges, damaged by exposure to the tropical marine environment along the southern coastline of Thailand. To assess the causes of deterioration, the damages, and the residual structural performance, a long-term research program was launched by the DRR to resolve and review deterioration from corrosion effects. An initial effort within this program was to investigate and evaluate by field testing 19 concrete bridges in poor or critical condition. It was observed that the concrete strength and covering depth in the current design specifications were insufficient to sustain the targeted 50-year service life. Based on these field data, a simplified model was developed to predict the residual capacities of bridge structural members. The model for concrete bridge beams predicts that the design service life is reduced by 25% by this specific marine environmental exposure. The structural performance of columns and piles in axial bending decreases significantly, which may seriously impair the overall bridge structure.

Eileen Johnson's legacy of research

The discussion begins where her career, on a national and international basis, began, at Lubbock Lake. That starting point lead to significant broadening of her research, both intellectually and geographically, and was reflected in the work of her collaborators and students: in Paleoindian archaeology; in all other archaeological time periods and traditions on the Southern Plains; in the method and theory of zooarchaeology and Quaternary vertebrate paleontology; work beyond the High Plains; and sustained long-term research programs both on and beyond the Southern Plains.