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- Gustafsson, Mariana S., 1978-
(författare)
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Reassembling Local E-Government : A study of actors’ translations of digitalisation in public administration
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The digitalisation of society decidedly affects public administration. Swedish public administration has long worked with information technologies for an effective and improved management of public services. But new and increased use of information technologies in society poses new challenges. New demands on information security are increasing, while accessibility and transparency are important priorities in policies on digitalisation in public services. However, the central government’s ambitions and expectations with regard to digitalisation face a slow and hesitant implementation in local governments. There are important differences between municipalities in priorities, local needs, and implementation mechanisms in connection with e-government. In this thesis, I argue there is a need to reconsider the role of governance mechanisms in e-government. There is a need to understand local translations of national policies and technological developments in relation to the goals of more effective and legitimate public administration. The main purpose of this thesis is to analyse tensions that emerge in the implementation of egovernment in local public administration. On the basis of a constructivist and interpretivist approach, I have undertaken two empirical studies. One focuses on municipal administration of education in Linköping. The other focuses on a governance network on digitalisation policy in Östergötland. The studies are presented in four papers. The issues addressed in the papers are further analysed with a focus on four fields of tension, using network governance theory and translation theory. This shows that the implementation of e-government in local public administration is a tension-laden process. The four fields of tension relate to: different logics and dilemmas for adoption and implementation; concerns and ambiguities in a context of unclear organisational and institutional arrangements; concerns and resistance from professional users; and a reassessment of the meaning of security as a reference for the interpretation of information security. I contend that established managerial and evolutionary models of e-government leave important process-related aspects out of the analysis of change in public administration. The contribution of this thesis lies in its description and analysis of the four identified fields of tension. One significant implication of my analysis is that reassembling current governance mechanisms in local public administration is crucial.
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| 2. |
- Kaneryd, Linda
(författare)
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Dynamics of ecological communities in variable environments : local and spatial processes
- 2012
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The ecosystems of the world are currently facing a variety of anthropogenic perturbations, such as climate change, fragmentation and destruction of habitat, overexploitation of natural resources and invasions of alien species. How the ecosystems will be affected is not only dependent on the direct effects of the perturbations on individual species but also on the trophic structure and interaction patterns of the ecological community. Of particular current concern is the response of ecological communities to climate change. Increased global temperature is expected to cause an increased intensity and frequency of weather extremes. A more unpredictable and more variable environment will have important consequences not only for individual species but also for the dynamics of the entire community. If we are to fully understand the joint effects of a changing climate and habitat fragmentation, there is also a need to understand the spatial aspects of community dynamics. In the present work we use dynamic models to theoretically explore the importance of local (Paper I and II) and spatial processes (Paper III-V) for the response of multi-trophic communities to different kinds of perturbations.In paper I we investigate how species richness and correlation in species responses to a highly variable environment affect the risk of extinction cascades. We find that the risk of extinction cascades increases with increasing species richness especially when the correlation among species is low. Initial stochastic extinctions of primary producer species unleash bottomup extinction cascades, where specialist consumers are especially vulnerable. Although the risks of extinction cascades were higher in the species-rich systems, we found that the temporal stability of aggregate abundance of primary producers increased with increasing richness. Thus, species richness had a two-sided effect on community stability. Also during the extinction cascades it is possible that more robust species and interaction patterns will be selected which would further act to stabilize the post-extinction communities. In paper II we explore how the process of disassembly affects the structure of the interaction network and the robustness of the community to additional disturbances. We find that the disassembled communities are structurally different and more resistant to disturbances than equally sized communities that have not gone through a phase of disassembly. The disassembled communities are topologically as well as dynamically more stable than non-disassembled communities.In paper III, IV and V we expand the analysis to incorporate the spatial dimension. In paper III we analyze how metacommunities (a set of local communities coupled by species dispersal) in spatially explicit landscapes respond to environmental variation. We examine how this response is affected by varying 1) species richness in the local communities, 2) the degree of correlation in species response to the environmental variation, between species within patches (species correlation) and among patches (spatial correlation) and 3) dispersal pattern of species. First we can confirm that our previous findings from paper I regarding local species richness and correlation among species within a patch are robust to the inclusion of a spatial dimension. However our results also show that the spatial dynamics are of great importance: first we find that the risk of global extinctions increases with increasing spatial correlation. Second we find that the pattern and rate of dispersal are important; a high migration rate in combination with localized dispersal decrease the risk of global extinctions whereas a global dispersal pattern increases the risk of global extinctions. When dispersal is global the subpopulations of a species become more synchronized which reduces the potential for a patch to become recolonized following extinctions. We also demonstrate the importance of both local and spatial processes when examining the temporal stability of primary production at the scale of metapopulations, local communities and metacommunities.In paper IV we investigate how the spatial structure of the landscape (number of patches) and dispersal pattern of species affect a metacommunities response to increased mortality during dispersal and local loss of species. We find a two-sided effect of dispersal on metacommunity persistence; on the one hand, high migration rate significantly reduces the risk of bottom-up extinction cascades following the removal of a species when dispersal involves no risk. On the other hand, high migration rate increases extinction risks when dispersal imposes a risk to the dispersing individuals, especially when dispersal is global. Species with long generation times at the highest trophic level are particularly vulnerable to extinction when dispersal involves a risk. These results suggest that decreasing the mortality risk of dispersing individuals by constructing habitat corridors or by improving the quality of the habitat matrix might greatly increase the robustness of metacommunities to local loss of species by enhancing recolonisations and rescue effects.In paper V we use network theory to identify keystone patches in the landscape, patches that are of critical importance for the local and global persistence of species in the metacommunity. By deleting patches one at a time and investigating the risk of local and global extinctions we quantified the importance of a patch’s position in the landscape for the persistence of species within the metacommunity. A selection of indices were used including some local indices that measure the connectedness of a patch in the intact network and some indices which measure the decrease in a global index after the deletion of the patch from the network. Global indices are those that give an impression of the connectivity of the entire patch network. We find that deletion of patches contributing strongly to the connectivity of the entire patch network had the most negative effect on species persistence.
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