Reproductive parameters, kidney fat index, and grazing activity relationships between the sexes in Cantabrian chamois Rupicapra pyrenaica parva

被引:28
|
作者
Perez-Barberia, FJ [1 ]
Mutuberria, G [1 ]
Nores, C [1 ]
机构
[1] Univ Oviedo, Fac Biol, Unidad Zool, Oviedo 33071, Spain
来源
ACTA THERIOLOGICA | 1998年 / 43卷 / 03期
关键词
Rupicapra pyrenaica parva; body condition; reproductive parameters; fecundity; age; grazing activity;
D O I
10.4098/AT.arch.98-26
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Reproductive parameters, kidney fat index and grazing activity of both sexes of Cantabrian chamois Rupicapra pyrenaica parva (Cabrera, 1910) in relation to age, season and year are presented and compared with those of other chamois subspecies and cervids. Females younger than three years old had not ovulated. Ovulated ovaries were significantly heavier than non-ovulated ovaries in March-April, and these differences remained until the following rutting season. All pregnant females carried a single foetus. A significant decrease in the percentage of parous females was found in 3-11 years age class (94%) compared with > 11 years (50%). There were no differences in the kidney fat index (KFI) between age classes for either of the sexes throughout the study period. Females showed a significant higher KFI in August-October 1993 than in August-October 1992, coinciding with a significantly greater abundance of grass in 1993. Throughout the year KFI in females showed less fluctuations than in males. Males began the rutting season with a significant KFI three times higher than did females. However, by the spring, the KFI of the males had fallen to half of that of the females. In March-April pregnant females showed a significantly higher KFI than non-pregnant or late-conception adult females. Feeding activity of females and sward height throughout the year were inversely related. Females grazed more actively than males in the summer, rut and spring, except in winter where no differences in feeding activity between sexes were found. The differences in the KFI and feeding activity are discussed in relation to the parental investment and the sexual dimorphism-body size theory.
引用
收藏
页码:311 / 324
页数:14
相关论文
共 3 条
  • [1] Grazing activity of breeding and non-breeding female Cantabrian chamois (Rupicapra pyrenaica parva)
    PerezBarberia, FJ
    Nores, C
    ETHOLOGY ECOLOGY & EVOLUTION, 1996, 8 (04) : 353 - 363
  • [2] Prevalence of antibodies against selected agents shared between Cantabrian chamois (Rupicapra pyrenaica parva) and domestic goats
    Caterina Falconi
    Álvaro Oleaga
    Jorge R. López-Olvera
    Rosa Casais
    Miguel Prieto
    Christian Gortázar
    European Journal of Wildlife Research, 2010, 56 : 319 - 325
  • [3] Prevalence of antibodies against selected agents shared between Cantabrian chamois (Rupicapra pyrenaica parva) and domestic goats
    Falconi, Caterina
    Oleaga, Alvaro
    Lopez-Olvera, Jorge R.
    Casais, Rosa
    Prieto, Miguel
    Gortazar, Christian
    EUROPEAN JOURNAL OF WILDLIFE RESEARCH, 2010, 56 (03) : 319 - 325