Transient populations in the British conservation priority lichen,Cladonia botrytes

2013 ◽  
Vol 45 (2) ◽  
pp. 265-276 ◽  
Author(s):  
Rebecca YAHR ◽  
Brian J. COPPINS ◽  
Alexandra M. COPPINS

AbstractIn the face of changing environments, conservation is tending towards an adaptive framework which accounts for the movement of species in the landscape. This makes it necessary to quantify population dynamics of species of concern. We studied the nationally scarceCladonia botrytes, a priority Biodiversity Action Plan species in Britain, examining population dynamics at two scales: first, we studied the demography for two populations over a period of 13 years. The monitored populations declined to complete absence, starting from 77 mats on 19 stumps. Individual mats persisted maximally for up to 7 years, but over 78% of more than 290 individual cases persisted only 1 year, and more than 93% of mats disappeared within 3 years. Secondly, we performed a targeted regional survey of more than 800 stumps across an additional 27 sites in the centre of the lichen's distribution in Britain in 2006. The largest populations known from 1998 were revisited and found to no longer support the species; only 9 stumps in 5 sites supportedC. botrytesin 2006. We show thatC. botrytesin Britain is characterized by short individual and population persistence times, probably locally dependent upon vegetative succession including overgrowth and shading, and the degree of stump decay. The species' transient nature poses a particular challenge to conservation, though we identify comparable systems from which lessons may be learned.

2011 ◽  
Vol 87 (1) ◽  
pp. 34-51 ◽  
Author(s):  
Kyrre Kausrud ◽  
Bjørn Økland ◽  
Olav Skarpaas ◽  
Jean-Claude Grégoire ◽  
Nadir Erbilgin ◽  
...  

2020 ◽  
Vol 30 (1) ◽  
Author(s):  
Omer Hamour ◽  
Eve Smyth ◽  
Hilary Pinnock

Abstract Supported self-management is a vital component of routine asthma care. Completion of an agreed personalised asthma action plan is integral to implementation of this care, and traditionally this requires a face-to-face consultation. We aimed to assess the practical feasibility and potential utility of using screen-sharing technologies to complete asthma action plans remotely. Assisted by people with diverse technological ability and using a range of devices, we tested the technological feasibility of completing action plans in remote consultations using two leading video-conference systems. We used a semi-structured topic guide to check functionality and lead feedback discussions. Themes were interpreted using the Model for ASsessment of Telemedicine applications (MAST). Discussions with ten participants (age 20–74 years) revealed that screen-sharing was practical on most devices. Joint editing of an action plan (as was possible with Zoom) was considered to encourage participation and improve communication. Attend Anywhere had less functionality than Zoom, but the NHS badging was reassuring. Most participants appreciated the screen-sharing and considered it enabled a meaningful discussion about their action plan. Online shared completion of action plans is feasible with only a few (potentially remediable) practical problems. These findings suggest this may be a fruitful approach for further study—made more urgent by the imperative to develop remote consultations in the face of a global pandemic.


2016 ◽  
Vol 82 (15) ◽  
pp. 4456-4469 ◽  
Author(s):  
Claudia Guldimann ◽  
Kathryn J. Boor ◽  
Martin Wiedmann ◽  
Veronica Guariglia-Oropeza

ABSTRACTGram-positive bacteria are ubiquitous and diverse microorganisms that can survive and sometimes even thrive in continuously changing environments. The key to such resilience is the ability of members of a population to respond and adjust to dynamic conditions in the environment. In bacteria, such responses and adjustments are mediated, at least in part, through appropriate changes in the bacterial transcriptome in response to the conditions encountered. Resilience is important for bacterial survival in diverse, complex, and rapidly changing environments and requires coordinated networks that integrate individual, mechanistic responses to environmental cues to enable overall metabolic homeostasis. In many Gram-positive bacteria, a key transcriptional regulator of the response to changing environmental conditions is the alternative sigma factor σB. σBhas been characterized in a subset of Gram-positive bacteria, including the generaBacillus,Listeria, andStaphylococcus. Recent insight from next-generation-sequencing results indicates that σB-dependent regulation of gene expression contributes to resilience, i.e., the coordination of complex networks responsive to environmental changes. This review explores contributions of σBto resilience inBacillus,Listeria, andStaphylococcusand illustrates recently described regulatory functions of σB.


2018 ◽  
Author(s):  
Frederik Mortier ◽  
Staffan Jacob ◽  
Martijn L. Vandegehuchte ◽  
Dries Bonte

AbstractDispersal is a key trait responsible for the spread of individuals and genes among local populations, thereby generating eco-evolutionary interactions. Especially in heterogeneous metapopulations, a tight coupling between dispersal, population dynamics and the evolution of local adaptation is expected. In this respect, current theory predicts dispersal to counteract ecological specialisation by redistributing locally selected phenotypes (i.e. migration load). However, in nature we observe that some specialists exhibit a strong dispersal capacity.Habitat choice following informed dispersal decisions, provides a possible mechanism for individuals to match the environment to their phenotype, thereby enabling the persistence of evolved ecological specialisation. How such informed decisions affect the evolution of dispersal and ecological specialisation and how these, in turn, influence metapopulation dynamics is yet to be determined.By means of individual-based modelling, we show that informed decisions on both departure and settlement decouples the evolution of dispersal and generalism, favouring highly dispersive specialists. Choice at settlement decouples dispersal from ecological specialisation most effectively. Additionally, habitat choice stabilizes local and metapopulation demography because of the maintenance of ecological specialisation at all levels of dispersal propensity.We advocate considering habitat choice in spatially structured ecological models to improve demographic predictions in the face of environmental change.


2018 ◽  
Vol 7 (1) ◽  
pp. 90-110 ◽  
Author(s):  
Rebecca L. Toporek

The roles of counseling psychologists vary by setting, population, and circumstances. Yet, social justice can be a unifying force beyond the boundaries of daily responsibilities. No matter how insightful or profound counseling psychology theories or practice are, if they are focused on individual change alone, they will never sufficiently address injustice. Injustice and the inadequacy of traditional, individually focused paradigms present tensions between counseling psychologists’ work to help individuals cope with life’s challenges and inadvertent (or intentional) support of systems that perpetuate oppression. This paper explores this dichotomy, avenues for moving to action, and personal sustainability in the face of professional fatigue. Experiences as a counselor and counseling psychologist, as well as research, shape the way I see advocacy and activism and have given rise to strategies I have found helpful. A resulting framework for developing a “personal social action plan” is represented by four pillars: Strength, Solidarity, Strategy and Sustainability (S-Quad). National and local challenges across the globe reflect enormous differences in contexts, needs, politics, and resources. Yet, sharing strategies for social action, activism, and advocacy can provide seeds for optimism and action toward justice and positive change.


2021 ◽  
Vol 10 (6) ◽  
pp. e42510615513
Author(s):  
Ariandeny Silva de Souza Furtado ◽  
Júlia Figueredo Benzaquen ◽  
Oscar Mosquera ◽  
Wagner Lins Lira ◽  
Lara Cristine Gomes Ferreira ◽  
...  

Alternative food networks have emerged in recent decades as a bottom-up social phenomenon and consist of food provision initiatives that seek to operate outside globalized industrial supply chains that incorporate the values of social justice, environmental sustainability, community health and democracy. In this sense, the present study aimed to analyze the contributions that the virtual agroecological fair action plan between family farming and federal institutions in the state of Goiás-Brazil brought to family farmers. The methodology is characterized by an action research both by the character of the collaborative construction action plan of an agroecological fair, and by the structure of development in which the insertion of authors is guided by the permanent collection of elements of the practice and, also, for the development of small interventions that help to elucidate the problems detected, through problematization and theoretical deepening. The Virtual Agroecological Interinstitutional Fair is held in an interinstitutional and collaborative way with family farmers with the appreciation of family farming of ecological Goiás basis and culminates in a path that enhances more sustainable territorial development with income generation, weaves an alternative for food supply and the promotion of the alternative food network “from the countryside to the city” in the face of socio-environmental rationality, in addition to a fairer and more equitable society, with the enhancement of biodiversity and the offer of food produced in the face of ecological practices.


2021 ◽  
Vol 1 (5) ◽  
Author(s):  
Jonathan Harris

In the health care system, common elements of SEMs include pooled referrals and waiting lists, centralized intake through a single-entry point, and triage for urgency and appropriateness. Four programs including the use of SEMs from the Canadian context were examined: the Winnipeg Central Intake System for hip and knee replacements, the British Columbia Surgical Strategy, the Nova Scotia Hip and Knee Action Plan, and the Saskatchewan Surgical Initiative. SEMs were generally implemented as 1 element of broader strategies to reduce surgical waits and enhance quality and safety of surgical services.Key success factors for implementation of SEMs included: Concurrent investments in surgical capacity and health system resources. The establishment of standardized clinical pathways to reduce care variation. Strong leadership, including a focus on change management and use of clinician champions. Standardized data collection and public reporting on key performance indicators. Concurrent focus on quality improvement and patient-centred care. Challenges for implementation of SEMs included: Effectively managing change and resistance to change. Challenges in other areas of the health system that could impact wait times. Maintaining strategic focus and predictable funding, especially in the face of external shocks.


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