Effects of Natal Departure and Water Level on Survival of Juvenile Snail Kites (\u3ci\u3eRostrhamus sociabilis\u3c/i\u3e) in Florida

Survival rate from fledging to breeding, or juvenile survival, is an important source of variation in lifetime reproductive success in birds. Therefore, determining the relation-ship between juvenile survival and environmental factors is essential to understanding fitness consequences of reproduction in many populations. With increases in density of individuals and depletion of food resources, quality of most habitats deteriorates during the breeding season. Individuals respond by dispersing in search of food resources. Therefore, to understand the influence of environmental factors on juvenile survival, it is also necessary to know how natal dispersal influences survival of juveniles. We examined effects of various environmental factors and natal dispersal behavior on juvenile survival of endangered Snail Kites (Rostrhamus sociabilis) in central and southern Florida, using a generalized estimating equations (GEEs) approach and model selection criteria. Our results suggested yearly effects and an influence of age and monthly minimum hydrologic levels on juvenile Snail Kite survival. Yearly variation in juvenile survival has been reported by other studies, and other reproductive components of Snail Kites also exhibit such variation. Age differences in juvenile survival have also been seen in other species during the juvenile period. Our results demonstrate a positive relationship between water levels and juvenile survival. We suggest that this is not a direct linear relationship, such that higher water means higher juvenile survival. The juvenile period is concurrent with onset of the wet season in the ecosystem we studied, and rainfall increases as juveniles age. For management purposes, we believe that inferences suggesting increasing water levels during the fledging period will increase juvenile survival may have short-term benefits but lead to long-term declines in prey abundance and possibly wetland vegetation structure

Molybdenum Disulfide Catalytic Coatings via Atomic Layer Deposition for Solar Hydrogen Production from Copper Gallium Diselenide Photocathodes

We demonstrate that applying atomic layer deposition-derived molybdenum disulfide (MoS2) catalytic coatings on copper gallium diselenide (CGSe) thin film absorbers can lead to efficient wide band gap photocathodes for photoelectrochemical hydrogen production. We have prepared a device that is free of precious metals, employing a CGSe absorber and a cadmium sulfide (CdS) buffer layer, a titanium dioxide (TiO2) interfacial layer, and a MoS2 catalytic layer. The resulting MoS2/TiO2/CdS/CGSe photocathode exhibits a photocurrent onset of +0.53 V vs RHE and a saturation photocurrent density of -10 mA cm-2, with stable operation for >5 h in acidic electrolyte. Spectroscopic investigations of this device architecture indicate that overlayer degradation occurs inhomogeneously, ultimately exposing the underlying CGSe absorber

The transcriptional response of soil bacteria to long-term warming and short-term seasonal fluctuations in a terrestrial forest

© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Chowdhury, P. R., Golas, S. M., Alteio, L., Stevens, J. T. E., Billings, A. F., Blanchard, J. L., Melillo, J. M., & DeAngelis, K. M. The transcriptional response of soil bacteria to long-term warming and short-term seasonal fluctuations in a terrestrial forest. Frontiers in Microbiology, 12, (2021): 666558, https://doi.org/10.3389/fmicb.2021.666558.Terrestrial ecosystems are an important carbon store, and this carbon is vulnerable to microbial degradation with climate warming. After 30 years of experimental warming, carbon stocks in a temperate mixed deciduous forest were observed to be reduced by 30% in the heated plots relative to the controls. In addition, soil respiration was seasonal, as was the warming treatment effect. We therefore hypothesized that long-term warming will have higher expressions of genes related to carbohydrate and lipid metabolism due to increased utilization of recalcitrant carbon pools compared to controls. Because of the seasonal effect of soil respiration and the warming treatment, we further hypothesized that these patterns will be seasonal. We used RNA sequencing to show how the microbial community responds to long-term warming (~30 years) in Harvard Forest, MA. Total RNA was extracted from mineral and organic soil types from two treatment plots (+5°C heated and ambient control), at two time points (June and October) and sequenced using Illumina NextSeq technology. Treatment had a larger effect size on KEGG annotated transcripts than on CAZymes, while soil types more strongly affected CAZymes than KEGG annotated transcripts, though effect sizes overall were small. Although, warming showed a small effect on overall CAZymes expression, several carbohydrate-associated enzymes showed increased expression in heated soils (~68% of all differentially expressed transcripts). Further, exploratory analysis using an unconstrained method showed increased abundances of enzymes related to polysaccharide and lipid metabolism and decomposition in heated soils. Compared to long-term warming, we detected a relatively small effect of seasonal variation on community gene expression. Together, these results indicate that the higher carbohydrate degrading potential of bacteria in heated plots can possibly accelerate a self-reinforcing carbon cycle-temperature feedback in a warming climate.Funding for this study was provided by the Department of Energy Terrestrial Ecosystem Sciences program under contract number DE-SC0010740. Sites for sample collection were maintained with funding in part from the National Science Foundation (NSF) Long-Term Ecological Research (DEB 1237491) and the NSF Long-Term Research in Environmental Biology (DEB 1456528) programs

1437. Family Duty and Safety Linked to Overcoming Attitudinal Barriers to Adult Pneumococcal Vaccination in Disparate Populations

Background: Minority adult populations are at a higher risk for invasive pneumococcal disease and also have significantly lower vaccination rates when compared with the general population. Ingrained attitudes are a significant barrier to receipt of pneumococcal vaccine in these disparate populations, and therefore we tested targeted informational messaging to overcome these. Methods: A survey instrument of attitudinal questions related to pneumococcal vaccination was administered via YouGov, an online public national survey house in 2017. Socioeconomic information was captured and linked to baseline Likert scale attitudinal question responses. Respondents were randomly assigned into subsamples that received different science-based messages that included information on pneumococcal vaccines related to: pneumonia prevention, fatality/consequences, vaccine safety information, family duty/safety, and a combined vignette including all of these. Because of the random assignment, any differences observed in the respondents’ outcomes across subsamples can be attributed to the messages. Descriptive statistics were used to compare the persuasive effectiveness of these messages to conventional vaccine information across racial and ethnic groups. Results: A total of 2,608 respondents, 1,327 (51%) white and 1,281 (49%) non-white (over-sampled) were represented. Of the total respondents as well as in white, and non-white respondents, the combined vignette was associated with positive coefficients of b = 0.26, b = 0.24, and b = 0.32, respectively (P-values all \u3c0.05). In whites, the vaccine safety information and family duty/safety also had significant coefficients b = 0.24 ( = P = 0.012) and b = 0.24 (P = 0016), respectively. In non-Whites, family duty/safety was the only additional message with a significant coefficient b = 0.25 (P = 0.007). Conclusion: In this survey assessing attitudes toward pneumococcal vaccination across racial and ethnic subpopulations, the disparate population was persuaded to receive the vaccine only when family duty and safety were linked within the informational messages. Future studies implementing this informational messaging strategy should be performed to validate this finding

Moving forward in circles: challenges and opportunities in modelling population cycles

Population cycling is a widespread phenomenon, observed across a multitude of taxa in both laboratory and natural conditions. Historically, the theory associated with population cycles was tightly linked to pairwise consumer–resource interactions and studied via deterministic models, but current empirical and theoretical research reveals a much richer basis for ecological cycles. Stochasticity and seasonality can modulate or create cyclic behaviour in non-intuitive ways, the high-dimensionality in ecological systems can profoundly influence cycling, and so can demographic structure and eco-evolutionary dynamics. An inclusive theory for population cycles, ranging from ecosystem-level to demographic modelling, grounded in observational or experimental data, is therefore necessary to better understand observed cyclical patterns. In turn, by gaining better insight into the drivers of population cycles, we can begin to understand the causes of cycle gain and loss, how biodiversity interacts with population cycling, and how to effectively manage wildly fluctuating populations, all of which are growing domains of ecological research

Relationship between Tibial conformation, cage size and advancement achieved in TTA procedure

Previous studies have suggested that there is a theoretical discrepancy between the cage size and the resultant tibial tuberosity advancement, with the cage size consistently providing less tibial tuberosity advancement than predicted. The purpose of this study was to test and quantify this in clinical cases. The hypothesis was that the advancement of the tibial tuberosity as measured by the widening of the proximal tibia at the tibial tuberosity level after a standard TTA, will be less than the cage sized used, with no particular cage size providing a relative smaller or higher under-advancement, and that the conformation of the proximal tibia will have an influence on the amount of advancement achieved

Heated nuclear matter, condensation phenomena and the hadronic equation of state

The thermodynamic properties of heated nuclear matter are explored using an exactly solvable canonical ensemble model. This model reduces to the results of an ideal Fermi gas at low temperatures. At higher temperatures, the fragmentation of the nuclear matter into clusters of nucleons leads to features that resemble a Bose gas. Some parallels of this model with the phenomena of Bose condensation and with percolation phenomena are discussed. A simple expression for the hadronic equation of state is obtained from the model.Comment: 12 pages, revtex, 1 ps file appended (figure 1

A pharmacist-driven academic detailing program to increase adult pneumococcal vaccination

Objectives To describe our statewide, pharmacist-led education campaign to increase knowledge and awareness of pneumococcal immunization recommendations. Setting Immunization providers and residents in the state of Rhode Island. Practice description A clinical pathway (i.e., decision-support tool) was developed to educate health professionals about appropriate indications, administration schedules, and frequently asked questions for the 2 different adult pneumococcal vaccines. Academic detailing and distribution of the clinical pathway to health professionals was conducted across Rhode Island. Community outreach activities included radio ads as well as distribution of patient handouts and wallet cards at community events. Practice innovation To our knowledge, this was the first statewide, pharmacist-driven academic detailing and community outreach campaign to promote adult pneumococcal vaccination. Evaluation Academically detailed immunization providers received a 6-question survey. Pneumococcal disease rate differences between the study periods were evaluated with the use of Fisher exact tests, whereas changes in vaccination were assessed with the use of chi-square tests. Results From November 2013 through July 2015, our academic detailers visited and distributed our vaccination pathway materials to more than 400 practice sites across Rhode Island, including 68% of community pharmacies and all adult acute care hospitals. Of the 413 surveys completed, 92% of respondents agreed that their knowledge of the pneumococcal conjugate vaccine, 13-valent and pneumococcal polysaccharide vaccine, 23-valent had improved. Pneumococcal vaccination increased significantly (absolute difference 3.9%, percentage change in proportion 5.4%; P = 0.01), and pneumococcal disease decreased significantly between the preintervention and intervention periods (−2.74/10,000 discharges [95% CI −5.15 to −0.32], P = 0.02). Invasive pneumococcal disease decreased by 21 cases per 1,000,000 population per year between the preintervention and postintervention periods (−42.25 to 0.14, P = 0.05). Conclusion Our statewide, pharmacist-driven pneumococcal vaccination educational outreach program resulted in favorable provider feedback relative to knowledge change and perceptions. Vaccination increased and pneumococcal disease decreased during the study period