Untersuchungen zur Ökologie des Gamswildes (Rupicapra rupicapra L.) in einem Vorkommen der Alpen

Schröder, W.

doi:10.1007/bf01901781

Cited by 18 publications

(17 citation statements)

References 40 publications

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“…This pattern has been described in several chamois populations (Krämer 1969, Schröder 1971, Shank 1985. These groups can be spatially or temporally segregated occupying the same spatial areas (Shank 1985, Pérez-Barbería andNores 1994).…”

Section: Introductionsupporting

confidence: 63%

Sex, seasonal and spatial differences in the diet of Cantabrian chamois Rupicapra pyrenaica parva

Pérez‐Barbería¹,

Oliván²,

Osoro³

et al. 1997

Acta Theriol.

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. 1997. Sex, seasonal and spatial differences in the diet of Cantabrian chamois Rupicapra pyrenaica parva. Acta Theriologica 42: 37-46.The relationships between availability and quality of food, diet composition and habitat use of female and male chamois herds Rupicapra pyrenaica parva (Cabrera, 1911), were investigated in the Cantabrian Mountains (Spain). The two vegetation types studied were grass-forb and shrub. Grass-forb contained higher crude protein and lower fibre than shrub throughout year (crude protein: 17.2% vs 8.6%, p = 0.018; acid detergent fibre: 27.0% vs 35.8%, p = 0.018). The diet of female and male herds showed more grass-forb than shrub (p = 0.012), however, a discrepancy between site selection and bite selection was found. Generally male herds were found in shrub areas although they mainly chose grass-forb in their diet. Female herds had a higher percentage of grass-forb in the diet than male herds throughout the year (81.6% vs 65.6%). Diet composition pattern was similar in both sexes, with a peak of grass-forb in spring and autumn, and a minimum in summer. Both sexes selected grass-forb throughout the year, but its use was increased when its quality was high, independently of quantity available. Females showed higher grazing activity than males throughout year (53% vs 37%, p < 0.0001). Male herds showed less grazing activity during the rut (October-November) in comparison with the rest of the year (25% vs 43%, p < 0.0001). Some hypotheses to explain the segregation of the herds of both sexes are presented and discussed.

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Section: Introductionsupporting

confidence: 63%

Sex, seasonal and spatial differences in the diet of Cantabrian chamois Rupicapra pyrenaica parva

Pérez‐Barbería¹,

Oliván²,

Osoro³

et al. 1997

Acta Theriol.

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“…Subsequent annual increments were measured singly up to the sixth year. After the sixth year the horns are virtually fully developed in the chamois (Schroder 1971). Sexual dimorphism was studied by comparing males' and females' annual increments by Student's ¿-tests.…”

Section: Methodsmentioning

confidence: 99%

“…The growth process slows down in winter (Schroder 1971) and annual rings are forn.ed, so that it is possible to estimate the age of an individual by counting the rings on its horns. The length of the annual increment is the greatest in the first years of life and decreases rapidly with advancing age until an almost constant amoint of growth per year is reached.…”

Section: Introductionmentioning

confidence: 99%

The dynamics of the horn growth in Bulgarian chamois Rupicapra rupicapra balcanica

Massei¹,

Randi²,

Genov³

1994

Acta Theriol.

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P. 1994. The dynamics of the horn growth in Bulgarian chamois Rupicapra rupicapra balcanica. Measures o f horn growth of Bulgarian chamois Rupicapra rupicapra balcanica Bolkay, 1925 were compared between males and females. The hypothesis that rapid early growth of horn is followed by slower subsequent growth was tested through the regression o f the horn increment in the first two years against the third, fourth and fifth year respectively in the same individual. Sexual dimorphism in annual growth increment was significant up to the third year, males having higher values than females. Negative correlation coefficients were found when regressing the third, fourth and fifth individual annual increment on the second one in males, thus showing that individuals which had horns which grew fastest in the first two years tended to have slower horn growth in subsequent years.

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“…This indicates that when horn growth segments are used for aging, it is necessary to make the following correction: in the horns that show signs of recent post-winter growth, this portion should not be counted until the putative birth date (1st May, Pérez-Barbería 1994a). Schroder (1971) and Koubek and Hrabé (1983a) pointed out that horns continue growth throughout the winter, and growth does not stop as Couturier (1938) commented. In this study, the horns of young animals (2 years old), where growth rate is high, grew during winter.…”

Section: Relationships Between Jaw Length and Horn Sizementioning

confidence: 99%

Horn growth pattern in Cantabrian chamois Rupicapra pyrenaica parva : Influence of sex, location and phaenology

Pérez‐Barbería¹,

Robles²,

Nores³

1996

Acta Theriol.

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Untersuchungen zur Ökologie des Gamswildes (Rupicapra rupicapra L.) in einem Vorkommen der Alpen

Cited by 18 publications

References 40 publications

Sex, seasonal and spatial differences in the diet of Cantabrian chamois Rupicapra pyrenaica parva

Sex, seasonal and spatial differences in the diet of Cantabrian chamois Rupicapra pyrenaica parva

The dynamics of the horn growth in Bulgarian chamois Rupicapra rupicapra balcanica

Horn growth pattern in Cantabrian chamois Rupicapra pyrenaica parva : Influence of sex, location and phaenology

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