Long-term effectiveness of sowing high and low diversity seed mixtures to enhance plant community development on ex-arable fields

Questions: How is succession on ex-arable land affected by sowing high and low diversity mixtures of grassland species as compared to natural succession? How long do effects persist? Location: Experimental plots installed in the Czech Republic, The Netherlands, Spain, Sweden and the United Kingdom. Methods: The experiment was established on ex-arable land, with five blocks, each containing three 10 m x 10 m experiment tal plots: natural colonization, a low- (four species) and high-diversity (15 species) seed mixture. Species composition and biomass was followed for eight years. Results: The sown plants considerably affected the whole successional pathway and the effects persisted during the whole eight year period. Whilst the proportion of sown species (characterized by their cover) increased during the study period, the number of sown species started to decrease from the third season onwards. Sowing caused suppression of natural colonizing species, and the sown plots had more biomass. These effects were on average larger in the high diversity mixtures. However, the low diversity replicate sown with the mixture that produced the largest biomass or largest suppression of natural colonizers fell within the range recorded at the five replicates of the high diversity plots. The natural colonization plots usually had the highest total species richness and lowest productivity at the end of the observation period. Conclusions: The effect of sowing demonstrated dispersal limitation as a factor controlling the rate of early secondary succession. Diversity was important primarily for its 'insurance effect': the high diversity mixtures were always able to compensate for the failure of some species.

Facebook faith - social networking in a faith based community

This paper views the increasing social networking as an efficient emerging ministry to the moveable generation. Through social network such as Facebook, ministry from a pastoral perspective can become more authentic and meaningful. Ministry is relational. Social Networking sites provide a strong platform to being part in other people’s life. Social networking and living online builds community beyond geographical boarders. Young adults and youths digital identity often reflects their faith, this is supported by research which suggests a practice of more openness to share and expose private issues online. Spiritual and religious views are freely shared, creating sacred spaces in the midst of life practising a holistic faith identity in a secular community. Providing a strong platform for information flow, Social Network is attractive in a postmodern society where inviting people to join in events are perceived as non threatening, making church community events transparent and available to people who do not attend church, inviting spiritual friendships and relationships. Social Networking strengthens relationship in a non hierarchical manner and invites the minister into lives where there previously would have been barriers, engaging in prayer and bible study as well as pastoral care through social networking, thus relationships deepens via social networking making people real. It has been observed that, although community building happens on the net, church affiliation loyalty remains to the local community. Therefore presence ministry though social networks emerges as a core form of ministry, where relations to youth who move from local church to university campuses are kept alive. The asynchronous nature of communication within social networking eases the minister in her work. The minister is able to engage with many individuals at the same time. Before the minister could visit one person at a time, now she visits 5-6 individuals at any given time. Therefore social networking not only increases the quality of the work, but also empowers the minister to be more efficient.

Community development in sustainable livelihoods approaches: an introduction

This article introduces sustainable livelihoods approaches, explaining what they are and how they have emerged. It examines how different organizations have taken up a sustainable livelihoods approach, and considers whether in so doing they have drawn on community development thinking and practice. It is found that community development is largely absent from sustainable livelihoods thinking and contended that part of the reason lies with the locally situated character of community development practice, which makes it difficult for externally driven sustainable livelihoods interventions to systematically incorporate community-level methods and practices. More fundamentally, sustainable livelihoods approaches embody a technocratic development drive, which is at odds with the principles, ethos and values that underpin much development work.

Navigating the labyrinth: a guide to sequence-based, community ecology of arbuscular mycorrhizal fungi

Data generated from next generation sequencing (NGS) will soon comprise the majority of information about arbuscular mycorrhizal fungal (AMF) communities. Although these approaches give deeper insight, analysing NGS data involves decisions that can significantly affect results and conclusions. This is particularly true for AMF community studies, because much remains to be known about their basic biology and genetics. During a workshop in 2013, representatives from seven research groups using NGS for AMF community ecology gathered to discuss common challenges and directions for future research. Our goal was to improve the quality and accessibility of NGS data for the AMF research community. Discussions spanned sampling design, sample preservation, sequencing, bioinformatics and data archiving. With concrete examples we demonstrated how different approaches can significantly alter analysis outcomes. Failure to consider the consequences of these decisions may compound bias introduced at each step along the workflow. The products of these discussions have been summarized in this paper in order to serve as a guide for any researcher undertaking NGS sequencing of AMF communities.

Tensions and dilemmas in community development: new discourses, new Trojans?

This paper begins by noting the range of contradictions and dilemmas facing those involved in community development today. It then draws on research into the operating frameworks that set the stage for much current community development activity. It discusses four key operating frameworks and how each framework can affect community development practice. The final section deals with the ways in which the frameworks, and the discourses associated with them, come together.

Community development orthodoxies

Drawing on recent research and reflections upon the role of community development in the twenty-first century, and discussion that have taken place in this Conference, this paper will examine constructions of community development and consider some of its key orthodoxies. Central to ideas of orthodoxy in community development is a conception of 'pure' community development. However, does the notion of 'pure' community development have practical and political value? If so, where are the boundaries? In answering these questions, this paper will explore elements of contemporary wisdom in community development, such as commitment to social change, participation, empowerment, capacity building, localism and the moral superiority of the oppressed.

Measuring wellness through interdisciplinary community development: linking the physical, economic and social environment

The aim of this study is to answer the question: Is there evidence that the quality of life of residents in a community that has had community development intervention is different as compared to the quality of life of residents in a nearby community that did not have community development initiatives? This was done by administering community development initiatives in a local area and comparing it to a similar community that did not receive this intervention. The residents of these communities rated the quality of their lives and communities in two purposively selected suburbs in Perth, Western Australia using the Australian Unity Wellbeing Index to measure individual and neighbourhood well-being. The quality of life of residents in both communities is then compared to national averages for quality of life or well-being. Answering this question provides empirical evidence of variation between ratings of quality of life of residents in different communities and highlights the utility of the Wellbeing Index for the evaluation of interdisciplinary community development