References of "Ruwet, Jean-Claude"
     in
Bookmark and Share    
Peer Reviewed
See detailLe tétras lyre dans les Hautes-Fagnes : quarante ans de suivis - dix ans d'actions.
Poncin, Pascal ULg; Keulen, Christine; Loneux, Michèle ULg et al

Conference (2007)

Detailed reference viewed: 6 (0 ULg)
See detailLe tétras lyre dans les Hautes-Fagnes : quarante ans de suivis – dix ans d’actions.
Poncin, Pascal ULg; Keulen, Ch.; Loneux, Michèle ULg et al

Article for general public (2007)

Detailed reference viewed: 92 (3 ULg)
Full Text
Peer Reviewed
See detailFactors affecting black grouse numbers : an overview of the part of predators. European conference, black grouse endangered species,
Loneux, Michèle ULg; Kolb, Karl-Heinz; Ruwet, Jean-Claude et al

in PLUMMER, Ron (Ed.) European Conference 'Cynhadledd Ceiliog Y Rhos' Black Grouse Endangered Species (2005, December)

Detailed reference viewed: 20 (2 ULg)
Peer Reviewed
See detailFactors affecting black grouse numbers : an overview of the part of predators.
Loneux, Michèle ULg; Kolb, K.; Ruwet, Jean-Claude et al

Conference (2005)

Detailed reference viewed: 1 (0 ULg)
Peer Reviewed
See detailPas si bête ... ou le propre de l'animal.
Poncin, Pascal ULg; Huynen, Marie-Claude ULg; Ruwet, Jean-Claude

Conference (2004)

Detailed reference viewed: 6 (4 ULg)
Full Text
Peer Reviewed
See detailEcological requirements for black grouse. A case study in the belgian Hautes-Fagnes.
Keulen, Christine; Pieper, Y.; Doyen, A. et al

Conference (2003, September 08)

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailClimatic influence on black grouse population dynamic in Belgian Hautes-Fagnes.
Loneux, Michèle ULg; Lindsey, James ULg; Vandiepenbeeck, Marc et al

in Sylvia (2003), 39(supplement), 53-57

Detailed reference viewed: 27 (5 ULg)
Peer Reviewed
See detailClimatic influence on black grouse population dynamic in Belgian Hautes-Fagnes.
Loneux, Michèle ULg; Lindsey, J.K.; Vandiepenbeek, M. et al

Conference (2003)

Detailed reference viewed: 4 (3 ULg)
Peer Reviewed
See detailClimatic influence on black grouse population dynamic in Belgian Hautes-Fagnes : an update.
Loneux, Michèle ULg; Lindsey; Vandiepenbeek et al

Conference (2003)

Detailed reference viewed: 2 (0 ULg)
See detailPlan pour une restauration de la population de tétras lyres en Wallonie. Rapport final
Keulen, C.; Charlet, O.; Poncin, Pascal ULg et al

Report (2003)

Detailed reference viewed: 4 (0 ULg)
Full Text
Peer Reviewed
See detailSexual compatibility between two heterochronic morphs in the Alpine newt, Triturus alpestris
Denoël, Mathieu ULg; Poncin, Pascal ULg; Ruwet, Jean-Claude

in Animal Behaviour (2001), 62(3), 559-566

Paedomorphosis, in which individuals retain ancestral characteristics in the adult stage, is widespread in newts and salamanders and is suspected to play an important role in evolution. In some species ... [more ▼]

Paedomorphosis, in which individuals retain ancestral characteristics in the adult stage, is widespread in newts and salamanders and is suspected to play an important role in evolution. In some species, paedomorphosis is facultative with some individuals forgoing metamorphosis. Optimality models have been proposed to explain the maintenance of this polymorphism, but require the integration of reproductive patterns into the models. We investigated the frequencies of inbreeding and outbreeding in two syntopic heterochronic morphs of the Alpine newt. The two morphs are sexually compatible: encounters between and within morphs were equally successful in terms of spermatophore transfer. Behavioural observations were in agreement with the sexual compatibility observed. Nevertheless, paedomorphic males displayed to females less frequently than metamorphic males. The two morphs differ largely on the basis of sexual secondary characteristics, but the majority of these traits did not affect mating success. Because of the large flow of genes between the two heterochronic morphs and because of the absence of spatial and temporal isolation, these results do not support sympatric speciation models, but are in favour of the maintenance of polymorphism in natural populations. (C) 2001 The Association for the Study of Animal Behaviour. [less ▲]

Detailed reference viewed: 118 (18 ULg)
Full Text
Peer Reviewed
See detailAlternative mating tactics in the alpine newt Triturus alpestris alpestris
Denoël, Mathieu ULg; Poncin, Pascal ULg; Ruwet, Jean-Claude

in Journal of Herpetology (2001), 35(1), 62-67

Sexual behaviors in dyadic encounters in the alpine newt, Triturus alpestris alpestris, is described to test whether male behavior is influenced by external cues, that is, female responsiveness. Depending ... [more ▼]

Sexual behaviors in dyadic encounters in the alpine newt, Triturus alpestris alpestris, is described to test whether male behavior is influenced by external cues, that is, female responsiveness. Depending on this factor, a male exhibits one of the two following tactics during the sperm transfer phase. The male either waits for a positive response from the female before initiating sperm transfer ("waiting" tactic), or creeps and deposits a spermatophore in front of a nonresponsive female ("luring" tactic). The sperm transfer success rates of these tactics are 31% and 6%, respectively,and encounter success rates, 64% and 8%, respectively. The success of the second tactic is linked to behaviors that lure the female, notably quiver and distal lure. The same individual can exhibit both tactics, and neither body size nor condition appears to influence the tactic a male exhibits. These tactics can be interpreted as the result of a conditional strategy, that is, a strategy that allows an individual to incorporate information about its ability to obtain fitness through alternative tactics and then express the tactic that maximizes its fitness. More particularly, these tactics are examples of a side-payment strategy, that is, a strategy that allows individuals to achieve small gains by capitalizing on passing opportunities. [less ▲]

Detailed reference viewed: 125 (10 ULg)
Peer Reviewed
See detailBlack grouse conservation : a case study in Belgium.
Ruwet, Jean-Claude; Charlet, O.; Houbart, Servais et al

Poster (2001)

Detailed reference viewed: 9 (0 ULg)