Snow Leopard Survival Strategy - Panthera
Snow Leopard Survival Strategy - Panthera
Snow Leopard Survival Strategy - Panthera
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the region’s carnivores. Conservationists working in these<br />
underdeveloped areas that face serious economic impacts<br />
from livestock losses have turned to incentive schemes<br />
to motivate local communities to protect carnivores. We<br />
describe a pilot incentive experiment in India that aims<br />
at enhancing wild prey density by creating livestock-free<br />
areas on common land. We also describe how income<br />
generation from handicrafts and tourism in Mongolia is<br />
helping to curtail poaching and retaliatory killing of snow<br />
leopards. However, initiatives that have tried to offset the<br />
costs of living with carnivores and to make conservation<br />
beneficial to the affected people have thus far been small,<br />
isolated, and heavily subsidized. Making these initiatives<br />
more comprehensive, expanding their coverage, and<br />
internalizing their costs are future challenges for<br />
conserving large carnivores like the snow leopard.<br />
Molinari-Jobin, A., P. Molinari, C. Breitenmoser-Wursten<br />
and U. Breitenmoser. 2002. Significance of lynx Lynx<br />
lynx predation for roe deer Capreolus capreolus and<br />
chamois Rupicapra rupicapra mortality in the Swiss<br />
Jura Mountains. Wildlife Biology 8(2):109-115.<br />
Prey class selection and kill rates by lynx Lynx lynx<br />
were studied in the Swiss Jura Mountains from March<br />
1988 until May 1998 to evaluate the significance of lynx<br />
predation for roe deer Capreolus capreolus and chamois<br />
Rupicapra rupicapra. We found clear differences in<br />
the kill rates and prey class selection between lynx<br />
of different age, sex and breeding status. Male lynx<br />
killed more chamois than female lynx, and chamois<br />
was never found in kill series of subadult lynx. Family<br />
groups had the highest kill rate. They killed an ungulate<br />
every 5.0 days, compared to an average of 6.2-6.6 days<br />
for single lynx. During our 10-year study, the density<br />
of independent lynx was rather stable, ranging within<br />
0.94-1.01 individuals/100 km 2 . Based on the observed<br />
kill rates and the estimated lynx population structure<br />
we calculated that lynx killed 354 +/-13 roe deer and<br />
8713 chamois annually in the 710 km 2 study area. The<br />
magnitude of lynx predation on roe deer and chamois<br />
was primarily shaped by the lynx population structure. A<br />
decline in the number of resident male lynx reduced the<br />
number of chamois killed in the study area by 1/4 of the<br />
previous number due to the difference in prey selection<br />
of male and female lynx. There was a difference in the<br />
most frequently killed age and sex classes between roe<br />
deer and chamois: lynx killed more male chamois (39%)<br />
than females or fawns, whereas in roe deer, does (38%)<br />
were most often killed. By altering adult survival, lynx<br />
predation has a significant impact on prey population<br />
dynamics. Lynx killed a maximum of 9% of the roe deer<br />
and 11% of the chamois spring population. Considering<br />
the differences in the recruitment potential of the two<br />
prey species, lynx has a greater impact on chamois than<br />
on roe deer.<br />
Mowat, G. and C. Strobeck. 2000. Estimating<br />
population size of grizzly bears using hair capture,<br />
DNA profiling, and mark-recapture analysis. Journal<br />
of Wildlife Management 64:183-193.<br />
We used. DNA analysis to estimate grizzly bear (Ursus<br />
arctos) population size in a 9,866 km 2 area in southeast<br />
British Columbia and a 5,030 km 2 area in southwest<br />
Alberta. We sampled bears by removing hair at bait<br />
sites surrounded by a single strand of barbed, wire. DNA<br />
profiling with microsatellites of the root portion of the<br />
hair was used to identify individuals. We collected hair<br />
from 109 different bears and had 25 recaptures in 5 10-<br />
day trapping sessions in British Columbia. In Alberta we<br />
collected hair from 37 bears and had 9 recaptures in 4<br />
14-day sessions. A model in program CAPTURE (M-h)<br />
that accommodates heterogeneity in individual capture<br />
probabilities estimated the population size in British<br />
Columbia as 262 (95% CI = 224-313) and in Alberta as<br />
74 (60- 100). We believe that hair capture combined, with<br />
DNA profiling is a promising technique for estimating<br />
distribution and abundance of bears and potentially<br />
many other species. This approach is of special interest<br />
to management biologists because it can be applied at the<br />
scale conservation and management decisions are made.<br />
Murray, D. L., C. A. Kapke, J. F. Evermann and T. K.<br />
Fuller. 1999. Infectious disease and the conservation<br />
of free-ranging large carnivores. Animal Conservation<br />
2:241-254.<br />
Large carnivores are of vital importance to the stability<br />
and integrity of most ecosystems, but recent declines in<br />
free-ranging populations have highlighted the potentially<br />
devastating effect of infectious diseases on their<br />
conservation. We reviewed the literature on infectious<br />
diseases of 34 large (maximum body mass of adults<br />
>20 kg) terrestrial carnivore species, 18 of which are<br />
considered to be threatened in the wild, and examined<br />
reports of antibody prevalence (seroprevalence) and<br />
cases of infection, mortality and population decline. Of<br />
52 diseases examined, 44% were viral, 31% bacterial and<br />
the remainder were protozoal or fungal. Many infections<br />
were endemic in carnivores and/or infected multiple<br />
taxonomic families, with the majority probably occurring<br />
via inhalation or ingestion. Most disease studies<br />
consisted of serological surveys for disease antibodies,<br />
and antibody detection tended to be widespread implying<br />
that exposure to micro-organisms was common.<br />
Seroprevalence was higher in tropical than temperate<br />
areas, and marginally higher for infections known<br />
to occur in multiple carnivore groups. Confirmation<br />
of active infection via micro-organism recovery was<br />
less common for ursids than other taxonomic groups.<br />
Published descriptions of disease-induced population<br />
decline or extinction were rare, and most outbreaks were<br />
allegedly the result of direct transmission of rabies or<br />
canine distemper virus (CDV) from abundant carnivore<br />
species to less-common large carnivores. We conclude<br />
that the threat of disease epidemics in large carnivores<br />
may be serious if otherwise lethal infections are endemic<br />
in reservoir hosts and transmitted horizontally among<br />
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