Age- and sex-specific settlement patterns of chamois (Rupicapra rupicapra) offspring

Loison, A.; Darmon, G.; Cassar, S.; Jullien, J.-M.; Maillard, D.
June 2008
Canadian Journal of Zoology;Jun2008, Vol. 86 Issue 6, p588
Academic Journal
The social, spatial, and genetic structures of populations depend on where offspring settle and reproduce in relation to their parent’s home range. However, the patterns of settlement in wild populations of large mammals are often poorly described owing to the difficulty of monitoring mother-offspring pairs over a long period. Here, we investigated sex-specific settlement patterns in chamois (Rupicapra rupicapra (L., 1758)) based on the study of 31 mother-offspring pairs. We calculated the distance between the center of the mother’s range and the center of her offspring’s range, and tested whether this distance differed when the offspring was immature (i.e., a yearling) and after offspring sexual maturity (>2 years of age). We found no sex effect on the distance between centers of mother and offspring ranges for yearling offsprings. However, mature sons ranged farther away from their mother than mature daughters. Daughters appear to settle close to their mother’s home range. The distance at which a daughter settles compared with her mother’s range seems to be determined before 2 years of age. On the contrary, the distance between the center of the locations of yearling males and the center of locations of their mother does not predict how far away males will eventually settle when mature. We discuss the implications of these patterns for generating female social structures, as well as population spatial and genetic structures. Les structures sociales, spatiales et génétiques des populations dépendent du lieu où les rejetons vont s’installer et se reproduire par rapport au domaine vital de leur parents. Cependant, les patrons d’installation dans les populations sauvages de grands mammifères sont souvent peu décrits car il est difficile de suivre les couples mères-jeunes sur une période longue. Ici, nous avons étudié les patrons d’installation chez le chamois (Rupicapra rupicapra (L., 1758)) en fonction de leur sexe chez 31 couples mères-jeunes. Nous avons calculé la distance entre le centre du domaine vital de la mère et le centre de celui de son jeune et testé si la distance différait quand le jeune était immature (jeune de 1 an) et avait atteint la maturité sexuelle (>2 ans). Nous n’avons pas trouvé d’effet du sexe sur la distance entre les centres des domaines de la mère et du jeune pour les jeunes immatures. Cependant, les fils adultes sont partis s’installer plus loin de leur mère que les filles adultes. La distance à laquelle une fille s’installe par rapport au domaine vital de sa mère semble déterminée avant l’âge de 2 ans. Au contraire, la distance entre les centres des localisations des mâles de 1 an et le centre des localisations de la mère ne permet pas de prédire la distance d’installation du fils lorsqu’il est adulte. Nous discutons de l’implication de ces patrons dans l’émergence des structures sociales femelles et des structures spatiale et génétique des populations.


Related Articles

  • Craniological variation of the Balkan chamois, Rupicapra rupicapra balcanica from Bulgaria. MARKOV, Georgi; NINOV, Nino; ANDREEV, Rosen // Folia Zoologica;Sep2013, Vol. 62 Issue 3, p200 

    The article discusses a study which investigated factors that effect craniological differentiation of chamois populations in Bulgaria. It notes that 65 specimens of the Balkan chamois or Rupicapra (R) rupicapra Balcania were analyzed for skull and dental measurements, while sexual dimorphism...

  • Defecation rate variability in the common duiker: importance of food quality, season, sex and age. Lunt, Nicola; Mhlanga, Mpumelelo R. // South African Journal of Wildlife Research;2011, Vol. 41 Issue 1, p29 

    A common population estimation method for cryptic species - dung-heap counts - is reliant on accurate defecation rate data. Diet quality, dominance level, and animal condition have been suggested to affect antelope defecation rate. We investigated the effects of sex and forage quality on...

  • Descriptive Ecology of a Turtle Assemblage in an Urban Landscape. Conner, Christopher A.; Douthitt, Brooke A.; Ryan, Travis J. // American Midland Naturalist;Apr2005, Vol. 153 Issue 2, p428 

    We studied turtle populations inhabiting a canal and a lake (both man-made) within a heavily disturbed, urban setting. Six aquatic and semi-aquatic turtle species were collected in both habitats: spiny softshell turtle (Apolone spinifera), painted turtle (Chrysemys picta), common snapping turtle...

  • Common vole (Microtus arvalis) population sex ratio: biases and process variation. Bryja, Josef; Nesvadbová, Jiřina; Heroldová, Marta; Jánová, Eva; Losík, Jan; Trebatická, Lenka; Tkadlec, Emil // Canadian Journal of Zoology;Nov2005, Vol. 83 Issue 11, p1391 

    Vole population sex ratio varies seasonally. However, population sex ratios have usually been estimated using naïve estimators that do not allow for biases owing to the sex difference in capture probabilities and movement distances (i.e., effective areas sampled). Here we aimed to advance the...

  • Ecology of Hypsiboas albopunctatus (Anura: Hylidae) in a Neotropical Savanna. GUIMARÃES, TAINAH C. S.; DE FIGUEIREDO, GIOVANNI B.; MESQUITA, DANIEL O.; VASCONCELLOS, MARIANA M. // Journal of Herpetology;Jun2011, Vol. 45 Issue 2, p244 

    No abstract available.

  • Blubber fatty acids of gray seals reveal sex differences in the diet of a size-dimorphic marine carnivore. Beck, Carrie A.; Iverson, Sara J.; Bowen, W. Don // Canadian Journal of Zoology;Mar2005, Vol. 83 Issue 3, p377 

    Sex differences in foraging behaviour have been attributed to size dimorphism, niche divergence, and sex-specific fitness-maximizing strategies. Although sex differences in diving behaviour of marine carnivores are thought to result in sex differences in diet, this is not known for any species...

  • NEW RECORD OF PLATEAU SNAKE SKINK, Ophiomorus nuchalis (SQUAMATA: SCINCIDAE), FROM IRAN. Mozaffari, Omid; Ghaffari, Hanyeh; Kamali, Kamran; Safaei, Barbod // Russian Journal of Herpetology;Jan-Mar2011, Vol. 18 Issue 1, p36 

    The article provides a new record of plateau snake skink Ophiomorus (O.) nuchalis from Iran. The researchers collected four specimens of O. nuchalis from the northern edge of Kavir Protected Region on April 25, 2009. O. nuchalis is a rare lizard, and that there have been only three earlier...

  • Misinterpretation of character scaling: a tale of sexual dimorphism in body shape of common lizards. Kratochvíl, Lukáš; Fokt, michael; Rehák, Ivan; Frynta, Daniel // Canadian Journal of Zoology;Jun2003, Vol. 81 Issue 6, p1112 

    Male-biased sexual dimorphism in head, limbs, and tail scaled to snout–vent length has been reported in many lizard species. Consequently, various hypotheses have been proposed to explain observed body-shape dimorphism. According to the majority of them, the proportions of body components...

  • Quantitative morphometrical analysis of a North African population of Drosophila melanogaster: sexual dimorphism, and comparison with European populations. CHAKIR, M.; NEGOUA, H.; MORETEAU, B.; DAVID, J. R. // Journal of Genetics;Dec2008, Vol. 87 Issue 4, p373 

    Genetic variability of quantitative traits was investigated in a Moroccan population of Drosophila melanogaster, with an isofemale line design. Results were compared with data previously obtained from French populations. Although the environmental and thermal conditions are very different in...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics