scholarly journals Climate effects on demographic parameters in an unhunted population of Alpine chamois (Rupicapra rupicapra)

2013 ◽  
Vol 94 (1) ◽  
pp. 173-182 ◽  
Author(s):  
Christian S. Willisch ◽  
Katrin Bieri ◽  
Mark Struch ◽  
Ruth Franceschina ◽  
Reinhard Schnidrig-Petrig ◽  
...  
2002 ◽  
Vol 144 (3) ◽  
pp. 131-136 ◽  
Author(s):  
D. De Meneghi ◽  
E. Ferroglio ◽  
E. Bollo ◽  
L. Leon Vizcaino ◽  
A. Moresco ◽  
...  

Mammalia ◽  
2015 ◽  
Vol 79 (4) ◽  
Author(s):  
Roberta Chirichella ◽  
Andrea Mustoni ◽  
Marco Apollonio

AbstractIn large mammalian herbivores, an increase in herd size not only reduces predation risk but also energy intake. As a consequence, the size of the groups made up by herbivores is often assumed to be the outcome of a trade-off depending on local predation risk and food availability. We studied Alpine chamois (


2016 ◽  
Vol 155 (2-3) ◽  
pp. 207-212 ◽  
Author(s):  
C. Salvadori ◽  
J. Finlayson ◽  
T. Trogu ◽  
N. Formenti ◽  
P. Lanfranchi ◽  
...  

Oecologia ◽  
2015 ◽  
Vol 178 (1) ◽  
pp. 187-195 ◽  
Author(s):  
Federico Tettamanti ◽  
Stefano Grignolio ◽  
Flurin Filli ◽  
Marco Apollonio ◽  
Pierre Bize

2016 ◽  
Vol 94 (5) ◽  
pp. 311-321 ◽  
Author(s):  
A. Morin ◽  
M. Rughetti ◽  
S. Rioux-Paquette ◽  
M. Festa-Bianchet

In long-lived mammals, costs of reproduction may vary with age. The terminal investment hypothesis predicts greater reproductive effort as females approach the end of their life expectancy. We monitored 97 individually marked female Alpine chamois (Rupicapra rupicapra (L., 1758)) between 2007 and 2013 to determine how age-specific reproduction affected body mass and subsequent reproductive success. We captured and weighed females between April and August and monitored reproductive success from April to October through mother–kid associations. Reproductive success was strongly age-dependent and peaked at 70% for prime-aged females (4–7 years). Reproductive senescence began at 8 years, earlier than reported by other studies of ungulates. There was no clear evidence of reproductive costs in any age class. Reproductive success was very heterogeneous for old females, suggesting variability in the onset of senescence. Old females were less likely to reproduce in poor years despite being heavier than prime-aged females, suggesting reproductive restraint in late life rather than terminal investment. Female mass remained stable from May to August with no effect of lactation. Our results suggest that chamois reproductive strategy becomes increasingly conservative with age, resulting in no detectable costs of reproduction.


2018 ◽  
Vol 96 (3) ◽  
pp. 269-275 ◽  
Author(s):  
Arno Puorger ◽  
Christian Rossi ◽  
Rudolf M. Haller ◽  
Pia Anderwald

Foraging efficiency strongly affects individual fitness and is influenced by diverse factors such as food quality and quantity, as well as intra- and inter-specific interactions. We investigated whether Alpine chamois (Rupicapra rupicapra (Linnaeus, 1758)) in a protected area in the Swiss Alps adapted their foraging behaviour to forage availability and quality by modeling the bite and step rates of individuals on vegetation nitrogen content, relative plant cover, sex, daytime, air temperature, and slope. Vegetation characteristics were derived using remote sensing data from airborne imaging spectroscopy data sets and feeding locations determined using a theodolite. Chamois increased their bite rates with decreasing forage nitrogen content, decreasing slope, and increasing temperature. Step rates were higher at high temperatures and decreased with increasing relative plant cover. Males showed higher bite rates and lower step rates than females. Daytime had no influence on either bite or step rates. An increase in bite rate may represent a plastic adaptation of foraging behaviour to compensate for lower nutritional quality of the available vegetation. Our results show variability in foraging behaviour according to both vegetation characteristics and physical environment and emphasize the use of remote sensing data to investigate relationships between habitat and subtle behavioural adaptations in ungulates.


Pathogens ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 105
Author(s):  
Isabel Guadano Procesi ◽  
Margherita Montalbano Di Filippo ◽  
Claudio De Liberato ◽  
Andrea Lombardo ◽  
Giuseppina Brocherel ◽  
...  

Fragmented data are so far available on genotype diversity of G. duodenalis in wildlife in different countries in Europe, in particular, in Italy. In the present study, G. duodenalis sequences obtained from different Italian wild animals [12 porcupines (Hystrix cristata), 4 wild boars (Sus scrofa), 1 wolf (Canis lupus italicus), 6 Alpine chamois (Rupicapra rupicapra rupicapra)] were compared with those available from wild host species in Europe to add new data on the geographic distribution of Giardia assemblages/sub-assemblages and their transmission patterns among natural hosts. Thirty-eight sequences were obtained by MLG analysis (SSU-rRNA, bg, gdh, and tpi genes) and subsequently compared by phylogenetic and network analyses with those from wild species monitored in the last decades in Europe. The results revealed the presence of potentially zoonotic (A-AI, A-AII from wild boar; B from porcupine) and host-adapted (D from wolf; E, A-AIII from chamois) assemblages and sub-assemblages and represent the first report for Italian wild boar. The analysis did not find any evidence of spatial or host segregation for specific genetic variants, mostly shared between different hosts from different European countries. However, conflicting evidence was found in genotypic assignment, advocating for data improvement and new genomic approaches.


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