1,734 research outputs found
Interpersonal competencies define effective conservation leadership
Effective leadership is considered essential for conservation success, but there is currently not enough understanding of what conservation leaders are doing, and what they should be doing, in order to be effective. Other sectors, such as health, commerce, education, industry and the military have studied leadership for decades, and have a good knowledge of particular styles and suitable instruments for measuring leadership effectiveness. This study uses the perspectives of conservation professionals through interviews, a focus group and an online survey, to help develop a more comprehensive picture of the role of leaders, and leadership, within the discipline. The study concludes that competencies that relate to interpersonal leadership skills are key for effectiveness, particularly building trust amongst followers. However, leaders in conservation are not showing these to the same extent as they are showing more technical skills. Future conservation training schemes should incorporate these competencies to ensure leaders are effective. Greater understanding can help inform conservation professionals who wish to invest in leadership development schemes to improve effectiveness across conservation initiatives
A wildlife tolerance model and case study for understanding human wildlife conflicts
Human-wildlife conflict (HWC) is a complex conservation issue and acknowledging the human dimensions of the problem is critical. Here we propose the Wildlife Tolerance Model (WTM), a novel theoretical framework to identify key drivers of tolerance to living with damage-causing wildlife. The WTM proposes an outer model, where the extent to which a person experiences a species determines perceptions of costs relative to benefits of living with a species. This in turn determines tolerance. A second component, the inner model predicts eleven variables that may further drive perceptions of costs and benefits. In the current paper we test the outer model while in a forthcoming publication we test the inner model using a case study of human-baboon conflict in Cape Town, South Africa. Using Partial Least Squares Structural Equation Modeling we found support for the outer model. Experience explained 30% of variance in costs and benefits and 60% of tolerance was explained by perceptions of costs and benefits. Intangible costs and intangible benefits equally contributed to driving tolerance but tangible costs had no significant effect on tolerance. Separating two dimensions of experience, (i) exposure to a species explained costs more than benefits, and (ii) positive experiences explained intangible costs and benefits more than tangible costs while negative experiences equally explained costs and benefits. We discuss management implications of the findings and conclude that the WTM could be a useful diagnostic tool and theoretical framework to inform management interventions and policies to mitigate HWC
Genetic variants in Apolipoprotein AV alter triglyceride concentrations in pregnancy
BACKGROUND: Triglyceride concentrations are raised in pregnancy and are considered a key fetal fuel. Several gene variants are known to alter triglyceride concentrations, including those in the Apolipoprotein E (ApoE), Lipoprotein Lipase (LPL), and most recently, the Apolipoprotein AV (ApoAV) gene. However, less is known about how variants in these genes alter triglyceride concentrations in pregnancy or affect fetal growth. We aimed to determine the effect of the recently identified ApoAV gene on triglycerides in pregnancy and fetal growth. We assessed the role of two ApoAV haplotypes, defined by the C and W alleles of the -1131T>C and S19W polymorphisms, in 483 pregnant women and their offspring from the Exeter Family Study of Childhood Health. RESULTS: The -1131T>C and S19W variants have rare allele frequencies of 6.7% and 4.9% and are present in 13.4% and 9.7% of subjects respectively. In carriers of the -1131C and 19W alleles triglyceride concentrations were raised by 11.0% (1.98 mmol/ l(1.92 – 2.04) to 2.20 mmol/l (2.01 – 2.42), p = 0.035; and 16.2% (1.97 mmol/l (1.91 – 2.03) to 2.29 mmol/l (2.12 – 2.48), p < 0.001 respectively. There is nominally significant evidence that the -1131T>C variant is having an effect on maternal height (164.9 cm (164.3 – 165.5) to 167.0 cm (165.2 – 168.8), p = 0.029). There was no evidence that ApoAV genotype alters any other anthropometric measurements or biochemistries such as High Density Lipoprotein Cholesterol (HDL-C) or Low Density Lipoprotein Cholesterol (LDL-C). There is nominally significant evidence that the presence of a maternal -1131C variant alters fetal birth length (50.2 cm (50.0 – 50.4) to 50.9 cm (50.3 – 51.4), p = 0.022), and fetal birth crown-rump length (34.0 cm (33.8 – 34.1) to 34.5 cm (34.1 – 35.0), p = 0.023). There is no evidence that ApoAV genotype alters fetal birth weight or other fetal growth measurements. CONCLUSION: In conclusion variation in the ApoAV gene raises triglyceride concentrations in pregnancy, as well as normolipaemic states and there is preliminary evidence that it alters fetal growth parameters
Understanding the Barriers Fathers Face to Seeking Help for Paternal Perinatal Depression: Comparing Fathers to Men Outside the Perinatal Period
Research has shown that men are less likely than women to seek help for depression at any time of life due to barriers, including stereotypical masculine norms and stigma. The evidence suggests that approximately 10% of fathers experience postnatal depression, yet new and expectant fathers are not routinely offered screening or support in the same way as mothers. Therefore, this research explored the barriers fathers face to seeking help for paternal perinatal depression (PPD). Data were collected using an online survey. Initially, fathers with postnatal depression were compared to men experiencing depression at another time of their life in terms of their attitudes to seeking psychological help, conformity to masculine norms, self-stigma, and awareness of services. Secondly, a proposed model of help-seeking amongst fathers with postnatal depression was evaluated. Finally, additional barriers to help-seeking for paternal postnatal depression were explored qualitatively. A total of 125 participants took part in the quantitative comparison, and 50 of the fathers also provided qualitative data. No between-group differences were found, suggesting that the existing literature on barriers to seeking help for male depression is applicable to fathers with postnatal depression. The qualitative results also highlighted the need for better awareness of paternal postnatal depression and better access to services for fathers. Limitations, implications for policy, and directions for future research are discussed
Costs of coexistence : understanding the drivers of tolerance towards Asian elephants Elephas maximus in rural Bangladesh
CITATION: Saif, O. et al. 2020. Costs of coexistence : understanding the drivers of tolerance towards Asian elephants Elephas maximus in rural Bangladesh. Oryx, 54(5):603-611, doi:10.1017/S0030605318001072.The original publication is available at https://www.oryxthejournal.orgHabitat degradation and fragmentation have heightened the importance of understanding human tolerance towards wildlife, as the fate of wildlife in multi-use landscapes depends on people's capacity for coexistence. We applied the wildlife tolerance model to examine drivers of tolerance towards Asian elephants Elephas maximus in rural Bangladesh, interviewing local people in 17 villages. We used structural equation modelling to identify causal pathways in which elephant-related exposure, positive and negative interactions, costs and benefits (tangible and intangible) contributed to tolerance. Contrary to expectations, monetary costs were non-significant in shaping tolerance despite major impacts on livelihoods. Instead, intangible costs and intangible benefits were significant factors determining tolerance. Furthermore, reducing people's exposure to elephants would not necessarily affect tolerance, nor would increasing positive interactions. We discuss how the socio-economic and bio-cultural dynamics of local communities can explain these results, and demonstrate how our model can be used to incorporate such complexities into conservation decision-making. For instance, compensation schemes aim to recompense monetary losses and direct damages, to improve tolerance, whereas our results suggest a more effective approach would be to enhance resilience to non-monetary costs and improve perceived benefits. We conclude that future studies should pay increased attention to intangible costs and consider the less direct drivers of tolerance. Through repeated testing of universal models such as that presented here, broad trends may emerge that will facilitate the application of policies across contexts and landscapes.Publisher's versio
Inhibition of beta-Catenin/CREB Binding Protein Signaling Attenuates House Dust Mite-Induced Goblet Cell Metaplasia in Mice
Excessive mucus production is a major feature of allergic asthma. Disruption of epithelial junctions by allergens such as house dust mite (HDM) results in the activation of β-catenin signaling, which has been reported to stimulate goblet cell differentiation. β-catenin interacts with various co-activators including CREB binding protein (CBP) and p300, thereby regulating the expression of genes involved in cell proliferation and differentiation, respectively. We specifically investigated the role of the β-catenin/CBP signaling pathway in goblet cell metaplasia in a HDM-induced allergic airway disease model in mice using ICG-001, a small molecule inhibitor that blocks the binding of CBP to β-catenin. Female 6- 8-week-old BALB/c mice were sensitized to HDM/saline on days 0, 1, and 2, followed by intranasal challenge with HDM/saline with or without subcutaneous ICG-001/vehicle treatment from days 14 to 17, and samples harvested 24 h after the last challenge/treatment. Differential inflammatory cells in bronchoalveolar lavage (BAL) fluid were enumerated. Alcian blue (AB)/Periodic acid–Schiff (PAS) staining was used to identify goblet cells/mucus production, and airway hyperresponsiveness (AHR) was assessed using invasive plethysmography. Exposure to HDM induced airway inflammation, goblet cell metaplasia and increased AHR, with increased airway resistance in response to the non-specific spasmogen methacholine. Inhibition of the β-catenin/CBP pathway using treatment with ICG-001 significantly attenuated the HDM-induced goblet cell metaplasia and infiltration of macrophages, but had no effect on eosinophils, neutrophils, lymphocytes or AHR. Increased β-catenin/CBP signaling may promote HDM-induced goblet cell metaplasia in mice
A common genetic variant in the 15q24 nicotinic acetylcholine receptor gene cluster (CHRNA5–CHRNA3–CHRNB4) is associated with a reduced ability of women to quit smoking in pregnancy
Maternal smoking during pregnancy is associated with low birth weight and adverse pregnancy outcomes. Women are more likely to quit smoking during pregnancy than at any other time in their lives, but some pregnant women continue to smoke. A recent genome-wide association study demonstrated an association between a common polymorphism (rs1051730) in the nicotinic acetylcholine receptor gene cluster (CHRNA5–CHRNA3–CHRNB4) and both smoking quantity and nicotine dependence. We aimed to test whether the same polymorphism that predisposes to greater cigarette consumption would also reduce the likelihood of smoking cessation in pregnancy. We studied 7845 pregnant women of European descent from the South-West of England. Using 2474 women who smoked regularly immediately pre-pregnancy, we analysed the association between the rs1051730 risk allele and both smoking cessation during pregnancy and smoking quantity. Each additional copy of the risk allele was associated with a 1.27-fold higher odds (95% CI 1.11–1.45) of continued smoking during pregnancy (P = 0.0006). Adjustment for pre-pregnancy smoking quantity weakened, but did not remove this association [odds ratio (OR) 1.20 (95% CI 1.03–1.39); P = 0.018]. The same risk allele was also associated with heavier smoking before pregnancy and in the first, but not the last, trimester [OR for smoking 10+ cigarettes/day versus 1–9/day in first trimester = 1.30 (95% CI 1.13–1.50); P = 0.0003]. To conclude, we have found strong evidence of association between the rs1051730 variant and an increased likelihood of continued smoking in pregnancy and have confirmed the previously observed association with smoking quantity. Our data support the role of genetic factors in influencing smoking cessation during pregnancy
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