Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailGeographic structure and potential ecological factors in Belgium
Dufrêne, Marc ULg; Legendre, P.

in Journal of Biogeography (1991), 18(3), 257-266

The available potential ecological factors have been scored in the form of presence/absence in Universal Transverse Mercator (UTM) squares in Belgium. A correspondence analysis shows a strong underlying ... [more ▼]

The available potential ecological factors have been scored in the form of presence/absence in Universal Transverse Mercator (UTM) squares in Belgium. A correspondence analysis shows a strong underlying gradient in the data set which induces an extraordinary horseshoe effect. This gradient follows closely the altitude component. Applying the k-means clustering method on UTM squares produced geographically compact groups which are largely hierarchically nested. This indicates strong regional trends in the ecological data set. As homogeneous groups may also be artefacts created by the clustering algorithms on a continuous gradient, the relevance of the borders between homogeneous areas is tested. In general, k-means borders correspond to the main breaking lines between adjacent UTM squares. They can be referred to as natural borders. -Authors [less ▲]

Detailed reference viewed: 31 (4 ULg)
Full Text
Peer Reviewed
See detailGeographical allozymes differentiation in wild Phaseolus lunatus L. and its implication for conservation and management of populations
Zoro Bi, I.; Baudoin, Jean-Pierre ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2007), 11(4), 287-297

Detailed reference viewed: 10 (2 ULg)
Peer Reviewed
See detailGeographical research in Belgium : remote sensing and photo-interpretation
Donnay, Jean-Paul ULg; Wilmet, Jules

in Bulletin de la Société Belge d'Etudes Géographiques (1995), 2

Detailed reference viewed: 16 (2 ULg)
Peer Reviewed
See detailThe geographical societies of Brussels and Antwerp, and their focus on Africa in the period preceding the Berlin Conference (1876-1885)
Vandersmissen, Jan ULg

in Van Schuylenbergh, Patricia; Lanneau, Catherine; Plasman, Pierre-Luc (Eds.) L'Afrique belge aux XIXe et XXe siècles. Nouvelles recherches et perspectives en histoire coloniale. (2014)

Detailed reference viewed: 26 (1 ULg)
Full Text
See detailGeographical traceabilitiy of food products.
Tychon, Bernard ULg; Oger, Robert ULg

Conference (2003, March)

Detailed reference viewed: 10 (1 ULg)
Full Text
Peer Reviewed
See detailGeographical variation in sound production in the anemonefish Amphiprion akallopisos
Parmentier, Eric ULg; Lagardere, J. P.; Vandewalle, Pierre ULg et al

in Proceedings of the Royal Society B-Biological Sciences (2005), 272(1573), 1697-1703

Because of pelagic-larval dispersal, coral-reef fishes are distributed widely with minimal genetic differentiation between populations. Amphiprion akallopisos, a clownfish that uses sound production to ... [more ▼]

Because of pelagic-larval dispersal, coral-reef fishes are distributed widely with minimal genetic differentiation between populations. Amphiprion akallopisos, a clownfish that uses sound production to defend its anemone territory, has a wide but disjunct distribution in the Indian Ocean. We compared sounds produced by these fishes from populations in Madagascar and Indonesia, a distance of 6500 km. Differentiation of agonistic calls into distinct types indicates a complexity not previously recorded in fishes' acoustic communication. Moreover, various acoustic parameters, including peak frequency, pulse duration, number of peaks per pulse, differed between the two populations. The geographic comparison is the first to demonstrate 'dialects' in a marine fish species, and these differences in sound parameters suggest genetic divergence between these two populations. These results highlight the possible approach for investigating the role of sounds in fish behaviour in reproductive divergence and speciation. [less ▲]

Detailed reference viewed: 24 (4 ULg)
Full Text
Peer Reviewed
See detailLa géographie appliquée à l’université de Liège
Binard, Marc ULg; Devillet, Guénaël ULg; Erpicum, Michel ULg

in Bulletin de la Société Géographique de Liège (2003), 43

Historic of the applied geography within the various units of the Geographic Department of the University of Liège (Belgium)

Detailed reference viewed: 87 (24 ULg)
See detailLa géographie au service de l'enquête criminelle
Trotta, Marie ULg

Conference (2014, August 28)

La géographie est en constante évolution, rencontrant sans cesse de nouveaux champs d’application. Parmi ceux-ci, la cartographie criminelle s’intéresse de plus en plus à l’aspect opérationnel, cherchant ... [more ▼]

La géographie est en constante évolution, rencontrant sans cesse de nouveaux champs d’application. Parmi ceux-ci, la cartographie criminelle s’intéresse de plus en plus à l’aspect opérationnel, cherchant à fournir aux enquêteurs de précieuses indications sur le comportement dans l’espace d’agresseurs. Dans cette séance, nous présenterons, par des exemples concrets, comment l’utilisation des informations spatiales et temporelles permet de confirmer les hypothèses émises par les policiers ou d'en proposer de nouvelles. Nous montrerons qu’il s’agit également d’aller plus loin qu’une simple visualisation de l’information géographique. Ainsi, même si les outils de cartographie sont aujourd’hui accessibles à tout un chacun, une vraie approche géographique reste nécessaire pour révéler des indices qu’une simple visualisation ne peut révéler. [less ▲]

Detailed reference viewed: 67 (11 ULg)
Peer Reviewed
See detailLa géographie au service du développement local. Le bilan du Colloque de Liège (16-18 novembre 1995) de l'Association de Géographes Français
Merenne-Schoumaker, Bernadette ULg

in Cahiers de Géographie du Quebec (1996), 40(111), 479-484

Summary of a symposium held in Liege from 16 to 18 November 1996 on the theme of local development

Detailed reference viewed: 87 (0 ULg)