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See detailLandscape dynamics in Central and West Africa : causes, consequences and quantification
Bogaert, Jan ULiege; Barima, Y S S; Bamba, I et al

in Azevedo, J C; Feliciano, M; Castro, J (Eds.) et al Forest landscapes and Global Change (2010)

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See detailLandscape ecological consequences of the (sub)urbanization process in an African city: Lubumbashi (Democratic Republic of Congo)
Andre, Marie ULiege

Doctoral thesis (2017)

If anthropogenic effect is a general term accounting for the influence of human activities on environment, it may also designate specific influences that may be inter- and intralinked. Thus, urbanization ... [more ▼]

If anthropogenic effect is a general term accounting for the influence of human activities on environment, it may also designate specific influences that may be inter- and intralinked. Thus, urbanization and suburbanization are anthropogenic processes contributing to the broad anthropogenic effect. They hide in turn other subprocesses of land transformation that will be called here the secondary spatial impacts. However, although the growing influence of the latter processes, they are still not defined consensually nor exist a comprehensive and applied-oriented methodology to delimit them. The general objective of this thesis is to develop a spatially explicit methodology to evaluate the landscape ecological consequences of the urbanization and suburbanization processes, taking a representative city of Sub-Saharan Africa as a case study: Lubumbashi (Democratic Republic of Congo), and the last decade as the period of study. That general objective is addressed through two themes, to which correspond specific objectives. The first theme concerns the evaluation of the anthropogenic land use and land cover dynamics and the second one proposes a methodology to evaluate the expansion of urban and suburban areas, in relation with consistent definitions of the areas in the urban-rural gradient. For both themes, the propositions are based on remote sensing techniques and landscape ecology metrics. Results show that the region of Lubumbashi underwent a global anthropisation increase mostly constituted of minor rises of anthropisation levels but impacting mainly the most natural landscape classes. Urban and suburban areas were located through the use of the proportion of built-up metric, the secondary spatial impact area through the use of adjacencies of the less natural landscape patches. The growth shape of the urban and suburban areas is concentric, except in the south-western part of the city where an affluent of the river Kafubu and its adjacent wetlands slow the urban expansion. The secondary spatial impact area dynamics seems determined, in the north-west, by the relief and, in the north-east, by a transportation axis. It is the latter dynamics that is dominant for the period. It corresponds to the so-called savanisation process, probably due to wood fuel and charcoal production. The methodologies developed here could be improved by taking connectedness into account, by using an additional configuration metric for the definition of urban areas or by taking advantage of spatially explicit socio-economic data. They could also be tested on mining sites, other cities and/or using images of different spatial resolution. [less ▲]

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See detailLandscape ecology in action (A. Farina).
Bogaert, Jan ULiege

in Landscape & Urban Planning (2001), 53(1-4), 181-182

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See detailLandscape ecology – A top-down approach (J. Sanderson, L.D. Harris)
Bogaert, Jan ULiege

in Acta Biotheoretica (2002), 50(2), 129-131

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See detailLandscape Ecology: a unifying discipline
Bogaert, Jan ULiege; Andre, Marie ULiege

in Tropicultura (2013), 31(1), 1-2

Detailed reference viewed: 104 (16 ULiège)
See detailLandscape ecology: focus on spatio-temporal patterns.
Bogaert, Jan ULiege

Conference (2004)

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See detailLandscape ecology: monitoring landscape dynamics using spatial pattern metrics.
Bogaert, Jan ULiege; Hong, S-K

in Hong, S-K; Lee, J-A; Ihm, B-S (Eds.) et al Ecological Issues in a Changing World: Status, Response and Strategy (2004)

Detailed reference viewed: 49 (9 ULiège)
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See detailLandscape fragmentation assessment using a single measure.
Bogaert, Jan ULiege; Van Hecke, P; Salvador-Van Eysenrode, D et al

in Wildlife Society Bulletin (2000), 28(4), 875-881

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See detailThe “Landscape Laboratory Approach”: Examples from Scandinavia, Experiments from Europe, Proposals for Liège
Szanto, Catherine ULiege

Scientific conference (2014)

The aim of the seminar is to present the Landscape Laboratory and to explore the different directions of thoughts towards which Roland Gustavsson’s work is pointing, by presenting experiences directly ... [more ▼]

The aim of the seminar is to present the Landscape Laboratory and to explore the different directions of thoughts towards which Roland Gustavsson’s work is pointing, by presenting experiences directly inspired by Alnarp, and other examples exploring similar issues in different contexts. The Landscape Laboratory is a place for multidisciplinary research and experimentation in a 1 to 1 scale. The approach is based on theoretical foundations that share a belief in the essential character of ‘embodied knowledge’, where practical and theoretical knowledge is constructed through dialogue. Starting from the presentation of concrete examples (in Alnarp and elsewhere), the seminar will look at the specificity of the research methodology developed by Roland Gustavsson, and study its applicability to other sites, such as for example the Meuse valley around Liège. [less ▲]

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See detailLandscape metrics for the evaluation of trend reliability in remote sensing imagery.
Bogaert, Jan ULiege

in Abstracts of the Second International SPOT/VEGETATION Users Conference (2004)

Detailed reference viewed: 10 (1 ULiège)
See detailA landscape of agroecology from a francophone point of view
Stassart, Pierre M ULiege

Scientific conference (2013)

Detailed reference viewed: 32 (2 ULiège)
See detailLandscape pattern analysis using independent pattern components and landscape transformation processes.
Bogaert, Jan ULiege

in The 19th Annual Symposium of the IALE US regional association. (2004)

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See detailLandscape Quality Assessment: from place to utopia
Vanderheyden, Vincent ULiege; Schmitz, Serge ULiege

in Changing European Landscapes. Landscape ecology, local to global. Proceedings. (2013, September 11)

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See detailLandscape research in Belgium
Antrop, Marc; Belayew, Dimitri; Droeven, Emilie ULiege et al

in Belgeo (2004), 2-3

In the federal state Belgium, landscape research evolved from regional geographical monographs to more applied research that focuses upon the specific problems in each of the regions. In the highly ... [more ▼]

In the federal state Belgium, landscape research evolved from regional geographical monographs to more applied research that focuses upon the specific problems in each of the regions. In the highly urbanized Flanders region in the north, aspects of suburbanization and fragmentation are the most important. Landscape research involves geographers, historians, archaeologists, agronomists, foresters, ecologists and nature conservationists all dealing with specific goals and tasks. The integration is mainly achieved in spatial planning. In the Walloon region large areas are still rural and have a large forest cover, while urbanized zones are rather concentrated. Landscape research focuses here mainly upon the rural involving geographers, agronomists and planners. The natural and scenic aspects of the landscape dominate and the study of the historical development of the landscape is less pronounced. In Brussels Capital region little attention is given to landscape aspects, as social and typical urban problems dominate. Consequently, different landscape typologies are used in Belgium. [less ▲]

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See detailThe ‘Landscape’ of Nuclear Safeguards: a Comparative Analysis of the International and Regional Systems
Colussi, Ilaria Anna ULiege

Poster (2015, August 24)

Nuclear proliferation poses a severe threat to the international community, and the role of the law in this area is crucial. The notion of ‘nuclear non-proliferation’ is twofold: (a)disarm or vertical non ... [more ▼]

Nuclear proliferation poses a severe threat to the international community, and the role of the law in this area is crucial. The notion of ‘nuclear non-proliferation’ is twofold: (a)disarm or vertical non-proliferation: measures for reduction of the number of existing arsenals; (b)horizontal non-proliferation: containment of the number of States and no State entities that do not have but are acquiring nuclear weapons, or developing the capability and materials for producing them. Different sources of the law exist at the international and regional level for addressing the issue. For the implementation of the principles and obligations embedded in the agreements, it is essential to set up a verification and safeguards system. Safeguards provisions are established at the international and regional level. Thus, the aim of this study to analyse, critically and comparatively, the different safeguards systems that have been legally adopted at the international and regional level so far. [less ▲]

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See detailLandscape-level thresholds and newt conservation
Denoël, Mathieu ULiege; Ficetola, G. Francesco

in Ecological Applications (2007), 17(1), 302-309

Ecological thresholds are defined as points or zones at which a rapid change occurs from one ecological condition to another. The existence of thresholds in species - habitat relationships has important ... [more ▼]

Ecological thresholds are defined as points or zones at which a rapid change occurs from one ecological condition to another. The existence of thresholds in species - habitat relationships has important implications for management, but the lack of concordance across studies and the wide range of methods used make generalizations difficult. We used two different statistical methods to test for the existence of thresholds for both individual species and the whole community, using three newt species as models. Based on a sample of 371 ponds, we found significant thresholds for both landscape configuration and composition. These were for the relationships between distance to forest and occurrence of Triturus alpestris and T. helveticus, and forest and crop cover and T. helveticus. Variability in the location of thresholds observed for the different species in this study caution against their use at the community level. Future studies should be based on the identification and assessment of thresholds for targeted species. Thresholds can be a useful concept from which tools may be developed to focus conservation effort for threatened species and their habitats. [less ▲]

Detailed reference viewed: 190 (21 ULiège)