Aperçu du régime alimentaire du Grand Cormoran (Phalacrocorax carbo) dans les eaux intérieures du Pas-de-Calais (France)

in Aves (2001), 38(2), 49-59

The stomach contents of 40 great cormorants shot during "regulation" operations in the Pas-de-Calais have been analysed. Eight stomachs were empty and 426 fishes belonging to 15 species were recovered in ... [more ▼]

The stomach contents of 40 great cormorants shot during "regulation" operations in the Pas-de-Calais have been analysed. Eight stomachs were empty and 426 fishes belonging to 15 species were recovered in the others. The dominant prey is the roach. Other regular prey are the common bream and the perch. Other fish (Salmonids, pike, pikeperch, ruffe, rudd, lamprey) appear in less than 5 stomachs. Most of the prey are small sized fish, less than 12 cm (total length). The biomass of 80% of the preys is less than 20g. However, the role of the greater fish in the diet must be emphasized: those weighing more than 200g (1% in numbers) reprensent 20% of the ingested biomass. [less ▲]

On the origin and systematics of the northern African wood mouse (Apodemus sylvaticus) populations: a comparative study of mtDNA restriction patterns

in Canadian Journal of Zoology (2001), 79(8), 1503-1511

Conflicting hypotheses have been formulated regarding the origin of wood mouse (Apodemus sylvaticus) populations in northern Africa. In this study, the mtDNA restriction patterns of mice (n = 28 ... [more ▼]

Conflicting hypotheses have been formulated regarding the origin of wood mouse (Apodemus sylvaticus) populations in northern Africa. In this study, the mtDNA restriction patterns of mice (n = 28) collected in Tunisia and Morocco are compared with those of representatives from southern Europe (n = 102). The neighbour-joining tree confirms the existence of the three lineages previously found in the Mediterranean area: western, Tyrrhenian-Balkan, and Sicilian. The western group is isolated from the two others, with bootstrap values of 89 and 95%. Northern African patterns are included in the western group. Their variability is low, the same pattern being shared by five Tunisian and all Moroccan animals (n = 18), caught either in the north of the country (Cap Spartel) or in the south (Marrakech). This implies that northern African wood mouse populations have a southwestern European origin and that their presence in the region is probably recent, which corresponds to both paleontological data and the hypothesis of anthropogenic introduction. [less ▲]

Platypsyllus castoris Ritsema, 1869 (Coleoptera, Leptinidae), espèce nouvelle pour la faune de Belgique

in Bulletin de la Société Royale Belge d'Entomologie = Bulletin van de Koninklijke Belgische Vereniging voor Entomologie (2000), 136(1), 30-31

This paper reports for the first time, the presence of Platypsyllus castoris Rits. in Belgium. The insects were collected on a road killed European beaver found in Anseremme (Dinant) in December 1999 ... [more ▼]

This paper reports for the first time, the presence of Platypsyllus castoris Rits. in Belgium. The insects were collected on a road killed European beaver found in Anseremme (Dinant) in December 1999. This beaver is one of those that were recently illegaly reintroduced in various parts of southern Belgium. [less ▲]

Recent evolution of the status of the European mink (Mustela lutreola) and of the otter (Lutra lutra) in France.

in III International Symposium "Semiaquatische Säugetiere und ihre Lebenräume (1999, May)

Crocidura suaveolens (Pallas, 1811)

in Mitchell-Jones, A.J.; Amori, A.; Bogdanowicz, B. (Eds.) et al The atlas of European mammals (1999)

Martin pêcheur d'Europe, Alcedo atthis

in Rocamora, Gérard; Yeatman Berthelot, Dosithée (Eds.) Oiseaux menacés et à surveiller en France. Liste rouge (1999)

The diet of the European mink (Mustela lutreola) in south west France. First results.

in Reig, S. (Ed.) Abstracts of the Euro American mammal congress (1998, July)

L’Ecureuil, Sciurus vulgaris

Learning material (1998)

Foraging and feeding ecology of the Serotine bat Eptesicus serotinus

in Bat Research News (1998), 39(3), 84

Comparaison entre deux techniques d'étude de l'utilisation de l'habitat par la sérotine commune (Eptesicus serotinus): le radiopistage et la prospection avec une détecteur d'ultrasons hétérodyne.

in Arvicola (1998), Arvicola

During the course of a study on the use of habitat by the common serotine bat in Belgium, we have had recourse to radiotracking and the prospecting with an ultrasonic detector. The results obtained with ... [more ▼]

During the course of a study on the use of habitat by the common serotine bat in Belgium, we have had recourse to radiotracking and the prospecting with an ultrasonic detector. The results obtained with the two techniques used have been compared. The preferred habitats of the bats were found identical with the two techniques, with a preferece for leafy environments. However, the interpretation of the results affords different information depending on the technique adopted. We have thus compared the limits of each of the two techniques. In conclusion, the results obtained by radiotracking and with the ultrasonic detector are at the same time virtually the same but also complementary. [less ▲]