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See detailUn géographe en campagne : voir, connaître, représenter et comprendre.
Chevigne, Claire; Schmitz, Serge ULg; Tresegnie, Jean Pierre

in Donnay, Jean-Paul (Ed.) Recherches de géographie humaine, Hommage au Professeur Charles Christians. (1996)

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See detailGeographic and genetic variation of olfactory communication in butterflies: the male sex pheromone of Bicyclus butterfly species
Bacquet, Paul; Brattström, O.; Wang, H. L. et al

in Abstract book (2010, December 17)

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See detailGeographic ecology of soil oribatid mites in deciduous forests
Wauthy, G.; Noti, M.-I.; Dufrêne, Marc ULg

in Pedobiologia (1989), 33(6), 399-416

On a broad, geographic scale (Belgium), soil oribatid mites show relatively simple patterns of spatial distribution and habitat use since 2 groups of species can be defined: "regionally specialist' (RS ... [more ▼]

On a broad, geographic scale (Belgium), soil oribatid mites show relatively simple patterns of spatial distribution and habitat use since 2 groups of species can be defined: "regionally specialist' (RS) species which are rare and restrict their humus type occupancy, and "regionally generalist' (RG) species with reverse attributes. In the locality studied, 7/31 RS species inhabited all or nearly all the stands sampled and used widely disjunctive categories of habitat resources taking into account vertical location within organic layers (litter or humus), humus type (mor or moder) and vegetation (climax or secondary) developed in the study site. Nevertheless, their overlap on these categories was lower on average than the one of the 20 RG species which did not change their patterns on both geographic scales. Some of the 34 other RG species narrowed their local distribution and showed a clear specialization on the habitat categories. To explain the local/regional variations of patterns, it is proposed to interpret the regional distribution shown by soil oribatid mites in terms of tolerance to environmental factors. Then, it is advocated, the role of biotic interactions in the local widening of habitat breadth shown by the RS as well as RG species, and to produce a local non-equilibrium assemblage. -from Authors [less ▲]

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See detailGeographic range in liverworts: does sex really matter?
Laenen, B.; Machac, A.; Gradstein, S.R. et al

in Journal of Biogeography (2016)

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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 ▲]

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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

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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

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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)

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See detailGeographical traceabilitiy of food products.
Tychon, Bernard ULg; Oger, Robert ULg

Conference (2003, March)

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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 ▲]

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