caa a22 4500 463174968 CHVBK 20180406164823.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10336-006-0098-9 doi (NATIONALLICENCE)springer-10.1007/s10336-006-0098-9 Habitat use and mating system of the houbara bustard ( Chlamydotis undulata undulata ) in a semi-desertic area of North Africa: implications for conservation [Elektronische Daten] [Yves Hingrat, Michel Saint Jalme, Frédéric Ysnel, Eric Le Nuz, Frédéric Lacroix] Studies of the movements and home-ranges of houbara bustards (Chlamydotis undulata undulata) showed sexual and seasonal differences in the use of space, with a polygynous mating system similar to an ‘exploded-lek' or a ‘resource-defence-polygyny', that remains undefined. We used the arthropod biomass as an index of the trophic quality of six defined habitats and we radio-tracked 7 females and 13 males to test whether sexual and seasonal variations in habitat use were related to resource availability, and to verify if critical resources for breeding females were monopolised by males. We analysed habitat selection in both sexes separately. We used the habitat type composition of buffer zones around radio-locations to study annual and seasonal habitat selection and to identify preferred habitats, using the chi-square goodness-of-fit test. Habitat use between sexes and between seasons were compared using MANOVA based on log-ratios of habitat proportions. During the year, and in each season, both sexes appeared to be significantly selective for habitats in comparison to their availability. But males avoided esparto grass, while females used all habitats. Habitat use differed between sexes in the breeding season, but not in the non-breeding season. In spring, when food resources were abundant and uniformly distributed in space, males preferred ‘temporarily flooded areas' and females preferred ‘reg with tall perennials' that offered both food and cover for brooding. Critical resources were not monopolised by males and the mating system fulfilled the definition of the ‘exploded-lek'. Leks are key sites for reproduction and should be considered as priority areas in further conservation plans. Dt. Ornithologen-Gesellschaft e.V., 2006 Exploded-lek nationallicence Seasonal variations nationallicence Sexual differences nationallicence Trophic resources nationallicence Hingrat Yves Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut Saint Jalme Michel Muséum National d'Histoire Naturelle, Département d'Ecologie et Gestion de la Biodiversité, UMR 5173 MNHN-CNRS, Conservation des Espèces, Restauration et Suivi des populations, Parc Zoologique de Clères, 76690, Cleres, France aut Ysnel Frédéric ERT Biodiversité Fonctionnelle et Gestion des Territoires, bat. 25, Campus de Beaulieu, Université de Rennes 1, 35042, Rennes cedex, France aut Le Nuz Eric Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut Lacroix Frédéric Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut Journal of Ornithology Springer-Verlag 148/1(2007-01-01), 39-52 0021-8375 148:1<39 2007 148 10336 https://doi.org/10.1007/s10336-006-0098-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-006-0098-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hingrat Yves Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut NATIONALLICENCE 700 1- Saint Jalme Michel Muséum National d'Histoire Naturelle, Département d'Ecologie et Gestion de la Biodiversité, UMR 5173 MNHN-CNRS, Conservation des Espèces, Restauration et Suivi des populations, Parc Zoologique de Clères, 76690, Cleres, France aut NATIONALLICENCE 700 1- Ysnel Frédéric ERT Biodiversité Fonctionnelle et Gestion des Territoires, bat. 25, Campus de Beaulieu, Université de Rennes 1, 35042, Rennes cedex, France aut NATIONALLICENCE 700 1- Le Nuz Eric Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut NATIONALLICENCE 700 1- Lacroix Frédéric Department of Ecology, Emirates Center for Wildlife Propagation, Province de Boulemane, P.O. Box 47, 33250, Missour, Morocco aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148/1(2007-01-01), 39-52 0021-8375 148:1<39 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer