Evaluation of maternal penning to improve calf survival in the Chisana Caribou Herd
- Author:
- Adams L.G., Farnell R., Oakley M.P., Jung T.S., Larocque L.L., Lortie G.M., Mclelland J., Reid M.E., Roffler G.H. & Russell D.E.
- Year:
- 2019
- Journal:
- Wildlife Monographs
- Pages:
- 204: 5–46
- Url:
Key words: Alaska, body mass, calf mortality, caribou, maternal penning, natality, population dynamics, population recovery, predation, Rangifer tarandus, sex ratio, survival, Yukon.
[p. 14:] "Animal care and monitoring during captivity.—We provided
caribou ad libitum a commercial pelleted ration formulated
specifically for caribou (Barboza and Parker 2006, Thompson
and Barboza 2014; ¯x = 2.9 kg dry/adult caribou/day) and
terrestrial lichens ( ¯x = 0.5 kg dry/adult caribou/day) in
plywood feeding troughs each morning and evening. Lichens
were predominantly Cladonia arbuscula, C. mitis, and C. stellaris
collected elsewhere and transported to pen facilities. Caribou
also consumed native forages available within the pen."
[p. 24:] "Diets of adult females in captivity.—Adult females placed in
captivity quickly accepted the pelleted ration. Based on
microhistological analyses of feces in 2006, the commercial
feed constituted about 27% of the diet of females in the pen
following their first week in captivity (Fig. 13A). The addition
of the pelleted feed to their diets primarily resulted in a
reduction in the proportion of lichen, which constituted 70% of
the diet of free‐ranging caribou (Fig. 13A), even though we
provided 0.5 kg dry lichen/caribou/day on average and
additional lichen was naturally available in the pen."
- Id:
- 31722
- Submitter:
- zdenek
- Post_time:
- Thursday, 17 October 2019 11:28