Greenhouse Gas Release from Reservoirs in Scotland and North Wales

Inland waters play an important role in the transport, transformation, loss and storage of carbon (C) and nitrogen (N) in the pathway between terrestrial and marine systems. Inland waters can act as both sources to the atmosphere through evasion of GHGs such as CO2, CH4 and N2O, but also as sinks through C burial in sediments. To date, there are no major studies on GHG release from reservoirs in the UK, despite drinking water provision being heavily reliant on peatland-fed reservoirs. The overall aim of this thesis was therefore to quantify, compare and understand C and N dynamics, both spatially and temporally, within 30 temperate reservoirs in North Wales (n = 15) and Scotland (n = 15). Chapter 3 presents a broad overview of these 30 reservoirs, where the role of catchment characteristics in determining spatial variation of reservoir biogeochemistry is investigated. Three of the Scottish reservoirs included in Chapter 3 were also selected for greater in-depth sampling at weekly to fortnightly intervals to provide greater temporal understanding of C and N, and become the two remaining data chapters of this thesis. Chapter 4 quantifies GHG export from the catchments of Baddinsgill (moorland) and Black Esk (forested) reservoirs, whilst Chapter 5 determines the importance of water level drawdown on GHG emissions from Waltersmuir reservoir. In Chapter 3, results show that the 30 sampled reservoirs were overall, oversaturated in CO2, CH4 but to a lesser extent in N2O, largely reflecting differences in catchment land cover and soil types. Large temporal and spatial differences in C and N concentrations were also observed, with seasonal differences occurring between reservoirs in Scotland and North Wales. Influx of CO2 was occasionally seen, with one reservoir showing overall negative evasion which was linked to the presence of cyanobacteria. Chapter 4 revealed that GHG evasion from inlets was higher than the reservoirs at both Baddinsgill and Black Esk, emphasising the need for integrated, catchment wide monitoring across stream and reservoir systems. Annual and areal Fluvial C and N fluxes were calculated for both catchments, and the input-output balance also calculated to determine whether the reservoirs were net C and N sources or sinks. Results revealed both reservoirs as overall net sinks for C and N, apart from at Baddinsgill, which was a net CH4 source. Dissolved inorganic carbon (DIC) was the largest C input to both reservoirs, whilst nitrate (NO3-) was the largest N input. All aquatic systems experience natural fluctuations in water level, this is often more extreme in reservoir environments due to seasonal demands or operational maintenance. Chapter 5 determines the impact of a controlled water level drawdown on GHG emissions from both sediments and the surface water area at Waltersmuir reservoir. As the water level drops and sediments become exposed to the air and begin to dry out, biogeochemical processes are temporarily altered. Results showed pulses of GHG fluxes from the reservoir during the drawdown period. Such episodic events were indicative of physical displacement of accumulated sediment gases, which can contribute significantly to total reservoir emissions. The three month drawdown period at Waltersmuir reservoir contributed disproportionately to total annual emissions (66% of CO2 equivalent-weighted emissions). This study adds to a growing body of evidence that suggests reservoir drawdown zones are active areas of biogeochemical cycling and can stimulate CO2, CH4 and N2O release. Conclusively, this thesis shows that GHG concentrations and fluxes from UK reservoirs are highly temporally and spatially variable, with magnitudes comparable to other studies in temperate and boreal regions. Fluctuating water levels can regulate emissions and should be considered in budget studies, with the relative importance expected to increase under climate scenarios. Future studies which aim to quantify GHG dynamics from UK reservoirs should focus on integrated catchment wide monitoring (i.e. including any inflows, the reservoir itself, and outflows) to gain fuller understanding of the reservoir impact on C and N, and also potential impacts of catchment management on fluxes. Such monitoring is resource intensive so it is recommended that future efforts focus on reservoirs across different tropic states (i.e. oligotrophic to eutrophic) covering both lowland and upland catchments

The development and process evaluation of PEER : a camp-based programme for adolescents impacted by cancer

Adolescents impacted by their own or a relative’s cancer diagnosis experience significant psychosocial needs. Residential programmes provide opportunities to address these, yet limited evaluation research and unclear reporting of therapeutic and theoretical underpinnings complicate efforts to understand programme effects. This paper reports the development and process evaluation of PEER, a four-day programme with psychosocial (acceptance and commitment therapy, self-compassion) and recreational components for adolescents impacted by their own or a parent/sibling’s cancer. Staff (N = 51) and adolescents (N = 148, 12–17 years) who attended a PEER programme participated in this evaluation. The evaluation of fidelity included measures of facilitators’ confidence to deliver content, adherence to the programme manual, quality of programme delivery, participants’ engagement, and overall satisfaction. The process evaluation included assessment of quality of life, distress, and process variables (psychological flexibility, mindfulness, self-compassion) at pre-programme, post-programme, and two-month follow-up, as well as qualitative feedback from participants and facilitators. Moderation analyses identified predictors of clinically significant improvement in psychosocial outcomes. The programme was delivered with good fidelity, and participants reported high satisfaction and engagement. Approximately 15–20% of participants experienced clinically-meaningful improvements in distress and quality of life; those who reported higher distress and lower baseline psychological flexibility, mindfulness and self-kindness experienced greater improvements. Qualitative feedback additionally evidenced the value of peer connection and support. The evaluation evidences PEER’s feasibility, acceptability and value for adolescents impacted by cancer, particularly those experiencing greater distress. Its success indicates the potential of the therapeutic approaches used, and for community organisations to develop interventions complementing services offered by healthcare systems

Truce:Outcomes and mechanisms of change of a seven-week acceptance and commitment therapy programs for young people whose parent has cancer.

Truce is an Acceptance and Commitment Therapy group program for young people who have a parent with cancer. In a pragmatic controlled trial, we compared Truce with a wait-list condition to assess its effect on unmet needs and distress. We also investigated how process variables—mindfulness, cognitive inflexibility, family functioning, and life events—might influence outcomes. Participants' unmet needs improved over time (β^ = −5.01, SE = 16.48, p = 0.036, effect size = 0.42), and those improvements were greater for the intervention group compared to controls (β^ = −5.03, SE = 2.41, p = 0.040, effect size = 0.29). There was no evidence of a significant program benefit for distress. For the intervention group, greater improvements in unmet needs were associated with higher baseline distress (t = 2.36, df = 47, p = 0.022), and being less mindful at baseline (t = 2.07, df = 47, p = 0.044). No significant mediators were identified. For the control group only, experiencing negative/mixed life events related to cancer was a significant moderator of improvement (t = −2.36, df = 33, p = 0.024). Truce appears to offer therapeutic benefits to young people who have a parent with cancer, over and above the expected adjustment to the situation over time. The program seems to buffer the impact of negative cancer-related life events on participants’ well-being, but the mechanisms of change remain unclear

LGBTQI cancer patients' quality of life and distress : a comparison by gender, sexuality, age, cancer type and geographical remoteness

Background: There is growing acknowledgement of the psycho-social vulnerability of lesbian, gay, bisexual, transgender, queer and/or intersex (LGBTQI) people with cancer. The majority of research to date has focused on cisgender adults with breast or prostate cancer. Study Aim: This study examined psycho-social factors associated with distress and quality of life for LGBTQI cancer patients and survivors, across a range of sexualities and gender identities, intersex status, tumor types, ages and urban/ rural/remote location using an intersectional theoretical framework. Method: 430 LGBTQI people with cancer completed an online survey, measuring distress, quality of life (QOL), and a range of psycho-social variables. Participants included 216 (50.2%) cisgender women, 145 (33.7%) cisgender men, and 63 (14.7%) transgender and gender diverse (TGD) people. Thirty-one (7.2%) participants reported intersex variation and 90 (20%) were adolescents or young adults (AYA), aged 15-39. The majority lived in urban areas (54.4%) and identified as lesbian, gay or bisexual (73.7%), with 10.9% identifying as bisexual, and 10.5% as queer, including reproductive (32.4%) and non-reproductive (67.6%) cancers. Results: Forty-one percent of participants reported high or very high distress levels, 3-6 times higher than previous non-LGBTQI cancer studies. Higher rates of distress and lower QOL were identified in TGD compared to cisgender people, AYAs compared to older people, those who identify as bisexual or queer, compared to those who identify as lesbian, gay or homosexual, and those who live in rural or regional areas, compared to urban areas. Elevated distress and lower QOL was associated with greater minority stress (discrimination in life and in cancer care, discomfort being LGBTQI, lower outness) and lower social support, in these subgroups. There were no differences between reproductive and non-reproductive cancers. For the whole sample, distress and poor QOL were associated with physical and sexual concerns, the impact of cancer on gender and LGBTQI identities, minority stress, and lack of social support. Conclusion: LGBTQI people with cancer are at high risk of distress and impaired QOL. Research and oncology healthcare practice needs to recognize the diversity of LGBTQI communities, and the ways in which minority stress and lack of social support may affect wellbeing

"Surviving discrimination by pulling together" : LGBTQI cancer patient and carer experiences of minority stress and social support

Background: Lesbian, gay, bisexual, transgender, queer and/or intersex (LGBTQI) people with cancer and their carers report poorer psychological outcomes than the general non-LGBTQI cancer population. There is growing acknowledgement that these health inequities can be explained by minority stress, which can be buffered by social support. Study Aim: To examine subjective experiences of minority stress and social support for LGBTQI people with cancer and their carers, drawing on qualitative findings from the Out with Cancer study. Method: An online survey including open ended items was completed by 430 LGBTQI cancer patients and 132 partners and other carers, representing a range of tumor types, sexual and gender identities, age and intersex status. A sub-sample of 104 patients and 31 carers completed an interview, with a follow-up photovoice activity and second interview completed by 45 patients and 10 carers. Data was thematically analysed using an intersectional theoretical framework. Results: Historical and present-day experiences of discrimination, violence, family rejection and exclusion created a legacy of distress and fear. This impacted on trust of healthcare professionals and contributed to distress and unmet needs in cancer survivorship and care. Social support, often provided by partners and other chosen family, including intimate partners and other LGBTQI people, buffered the negative impacts of minority stress, helping LGBTQI patients deal with cancer. However, some participants lacked support due to not having a partner, rejection from family of origin and lack of support within LGBTQI communities, increasing vulnerability to poor psychological wellbeing. Despite the chronic, cumulative impacts of minority stress, LGBTQI patients and carers were not passive recipients of discriminatory and exclusion in cancer care, demonstrating agency and resistance through collective action and advocacy. Conclusion: LGBTQI people have unique socio-political histories and present-day psycho-social experiences that contribute to distress during cancer. Social support serves to buffer and ameliorate this distress. There is a need for cancer healthcare professionals and support services to be aware of and responsive to these potential vulnerabilities, including the intersectional differences in experiences of minority stress and social support. There is also a need for recognition and facilitation of social support among LGBTQI people with cancer and their carers

Attitudes, knowledge and practice behaviours of oncology health care professionals towards lesbian, gay, bisexual, transgender, queer and intersex (LGBTQI) patients and their carers : a mixed-methods study

Objective: There is growing recognition that health care professionals (HCPs) and policy makers are insufficiently equipped to provide culturally competent care to lesbian, gay, bisexual, transgender, queer and intersex (LGBTQI) cancer patients and their families. We examined HCP attitudes, knowledge, and practices regarding LGBTQI cancer care using a mixed-methods research design. Method: Surveys were completed by 357 oncology HCPs in nursing (40%), medical (24%), allied health (19%), and clinical leadership roles (11%); 48 of the surveyed HCPs were interviewed. Results: Most HCPs reported being comfortable treating LGBTQI patients, but reported low levels of confidence and knowledge and systemic barriers to LGBTQI cancer care. Most wanted more education and training, particularly on trans and gender-diverse people (TGD) and those born with intersex variations. Conclusion: Education of HCPs and health system changes are required to overcome barriers to the provision of culturally competent cancer care for LGBTQI patients. Practice implications: These findings reinforce the need for inclusion of LGBTQI content in HCP education and professional training curricula, and institutional support for LGBTQI-inclusive practice behaviours. This includes administrative and visual cues to signal safety of LGBTQI patients within cancer care, facilitating inclusive environments, and the provision of tailored patient-centred care

Vegetation type, not the legacy of warming, modifies the response of microbial functional genes and greenhouse gas fluxes to drought in oro-arctic and alpine regions

Climate warming and summer droughts alter soil microbial activity, affecting greenhouse gas (GHG) emissions in arctic and alpine regions. However, the long-term effects of warming, and implications for future microbial resilience, are poorly understood. Using one alpine and three arctic soils subjected to in situ long-term experimental warming, we simulated drought in laboratory incubations to test how microbial functional-gene abundance affects fluxes in three GHGs: carbon dioxide, methane, and nitrous oxide. We found that responses of functional gene abundances to drought and warming are strongly associated with vegetation type and soil carbon. Our sites ranged from a wet, forb dominated, soil carbon-rich systems to a drier, soil carbon-poor alpine site. Resilience of functional gene abundances, and in turn methane and carbon dioxide fluxes, was lower in the wetter, carbon-rich systems. However, we did not detect an effect of drought or warming on nitrous oxide fluxes. All gene-GHG relationships were modified by vegetation type, with stronger effects being observed in wetter, forb-rich soils. These results suggest that impacts of warming and drought on GHG emissions are linked to a complex set of microbial gene abundances and may be habitat-specific

LGBTQI inclusive cancer care : a discourse analytic study of health care professional, patient and carer perspectives

Background: Awareness of the specific needs of LGBTQI cancer patients has led to calls for inclusivity, cultural competence, cultural safety and cultural humility in cancer care. Examination of oncology healthcare professionals’ (HCP) perspectives is central to identifying barriers and facilitators to inclusive LGBTQI cancer care. Study Aim: This study examined oncology HCPs perspectives in relation to LGBTQI cancer care, and the implications of HCP perspectives and practices for LGBTQI patients and their caregivers. Method: 357 oncology HCPs in nursing (40%), medical (24%), allied health (19%) and leadership (11%) positions took part in a survey; 48 HCPs completed an interview. 430 LGBTQI patients, representing a range of tumor types, sexual and gender identities, age and intersex status, and 132 carers completed a survey, and 104 LGBTQI patients and 31 carers undertook an interview. Data were analysed using thematic discourse analysis. Results: Three HCP subject positions – ways of thinking and behaving in relation to the self and LGBTQI patients – were identified:’Inclusive and reflective’ practitioners characterized LGBTQI patients as potentially vulnerable and offered inclusive care, drawing on an affirmative construction of LGBTQI health. This resulted in LGBTQI patients and their carers feeling safe and respected, willing to disclose sexual orientation and gender identity (SOGI) status, and satisfied with cancer care. ‘Egalitarian practitioners’ drew on discourses of ethical responsibility, positioning themselves as treating all patients the same, not seeing the relevance of SOGI information. This was associated with absence of LGBTQI-specific information, patient and carer anxiety about disclosure of SOGI, feelings of invisibility, and dissatisfaction with healthcare. ‘Anti-inclusive’ practitioners’ expressed open hostility and prejudice towards LGBTQI patients, reflecting a cultural discourse of homophobia and transphobia. This was associated with patient and carer distress, feelings of negative judgement, and exclusion of same-gender partners. Conclusion: Derogatory views and descriptions of LGBTQI patients, and cis-normative practices need to be challenged, to ensure that HCPs offer inclusive and affirmative care. Building HCP’s communicative competence to work with LGBTQI patients needs to become an essential part of basic training and ongoing professional development. Visible indicators of LGBTQI inclusivity are essential, alongside targeted resources and information for LGBTQI people

Almost invisible : a review of inclusion of LGBTQI people with cancer in online patient information resources

Objective: This review assessed the inclusion of lesbian, gay, bisexual, trans, queer and/or intersex (LGBTQI) people in online cancer information. Methods: The websites of Australian cancer organizations were reviewed to identify if they included LGBTQI people and the extent and nature of this inclusion. Websites that did not include LGBTQI people were then reviewed to identify if information was implicitly LGBTQI inclusive. International LGBTQI cancer information resources were reviewed to identify key content. Results: Of sixty-one Australian cancer organization websites reviewed, eight (13%) mentioned LGBTQI people, including 13 information resources targeted to LGBTQI people and 19 general cancer information resources that mentioned LGBTQI people. For Australian cancer websites that did not mention LGBTQI people, 88% used gender neutral language to refer to partners, 69% included a range of sexual behaviours, 13% used gender neutral language when referring to hormones or reproductive anatomy but none acknowledged diverse relationship types. Internationally, 38 LGBTQI-specific cancer information resources were identified. Conclusions: Cancer patient information resources need to be LGBTQI inclusive. LGBTQI-targeted resources are required to address this population's unique needs and improve cultural safety and cancer outcomes. Practice implications: Recommendations are provided for LGBTQI inclusive cancer patient information resources

Potentially toxic metals in historic landfill sites: Implications for grazing animals

Municipal waste disposal is an increasing global problem, frequently solved by the use of landfill sites. Following closure, such sites contain a legacy of pollutants and must be managed to provide a safe and useful end life. The soils and vegetation from four historic landfill sites were analysed to determine the extent of pollution by potentially toxic metals (PTMs). Data were subsequently assessed to determine if post closure uses involving grazing were safe for the animals. The heaviest and widest spread soil contamination was due to Ni. Concentrations at all sites exceeded the 95th percentile value for rural soils, in one case by a factor of 30. Cu and Pb contamination was identified at some sites, but no evidence of Al or Zn contamination was found. Oral bioaccessibility testing showed that the availability of Ni in soil was exceedingly low, whilst that of Cu and Pb was high. Concentrations in plant shoots differed significantly amongst the sites, but interspecific differences in shoot concentration were only significant in the case of Cu. The results indicated that exposure levels to grazers would be at or below tolerable levels, indicating that it is generally safe to graze historic landfill. However, animals could be exposed to higher levels of PTMs than would be expected from rural locations, and grazing under conditions where soil consumption may be high could result in levels of exposure to Al, Ni and Pb exceeding tolerable levels. © Springer International Publishing 2014