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

• Autorzy: Perez-Barberia F. J. , Robles L. , Nores C.
• Języki publikacji: EN

Abstrakty

EN

Sexual dimorphism in Cantabrian chamois Rupicapra pyrenaica parua (Cabrera, 1911) horn length was recorded annually for the first five years of life. The horns of males were larger than those of females, though horn growth rate in the first two years (ie horn length in the first two years divided by horn length in the first five years) was greater in females than males. Sexual dimorphism in horn length of Cantabrian chamois adults was found to be the highest of genus according to available data. Males and females with faster horn growth in the first two years of life reduced their horn growth rate in the third and fourth year. Chamois' horns from the Eastern Cantabrian Mountains were smaller than those from Western Cantabrian Mountains, although at five years of age these differences were not evident. Total horn length and jaw length showed significant positive correlation (females: r^ = 0.75, males: rp2 = 0.54, p < 0.05 in both cases). This relationship suggests that horn growth dynamics may be used as an estimation of body-size dynamics. Horn growth / jaw length correlation was higher in females than in males. Horn growth was also positively correlated with annual precipitation in the previous year, but not with precipitation in the current year. Winter horn growth was observed in the younger age classes. Post-winter horn growth was recorded in 55% of the animals in March. The use of this information to age Cantabrian chamois is described.

Słowa kluczowe

EN

Cantabrian chamois; sexual dimorphism; chamois; Rupicapra pyrenaica parva; horn growth pattern; Spain; Cantabrian Mountains; horn growth dynamics

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 1996
• Tom: 41
• Numer: 1
• Opis fizyczny: p.83-92,fig.

Twórcy

autor

Perez-Barberia F. J.

• Universidad de Oviedo, 33071-Oviedo, Spain

autor

Robles L.

autor

Nores C.

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