Abomasal nematode community in an alpine chamois (Rupicapra r. rupicapra) population before and after a die-off
Articolo
Data di Pubblicazione:
2006
Citazione:
Abomasal nematode community in an alpine chamois (Rupicapra r. rupicapra) population before and after a die-off / C.V. Citterio, C. Caslini, F. Milani, M. Sala, N. Ferrari, P. Lanfranchi. - In: THE JOURNAL OF PARASITOLOGY. - ISSN 0022-3395. - 92:5(2006), pp. 918-927.
Abstract:
Abomasa of 185 chamois shot during 5 consecutive hunting seasons were collected as part of a health monitoring
program in an alpine area of Italy and examined for nematodes. The data were obtained during both the preceding period and
that following a severe die-off caused by a pneumonia outbreak. Prevalence, mean abundance, mean intensity, and Thul Importance
index were consistently high, in particular for Haemonchus contortus, having a low host specificity and high pathogenic
potential. Species typical of cervids were also consistently detected. The abomasal nematode community showed an isolationist
structure, suggesting its composition was primarily determined by external factors such as interspecific interaction among host
species and environmental conditions. The effect of different factors (host sex, sampling site, and time) on nematode counts and
aggregation were analyzed and discussed considering the peculiarities of the study site and the chamois population crash. In the
light of parallel results for health monitoring, abomasal parasitism could represent a predisposing factor for the observed die-off.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
C.V. Citterio, C. Caslini, F. Milani, M. Sala, N. Ferrari, P. Lanfranchi
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