Alces (A Journal Devoted to the Biology and Management of Moose)
Not a member yet
997 research outputs found
Sort by
THE SIGNIFICANCE OF HOOVES IN MOOSE MANAGEMENT - A PRELIMINARY REPORT
No full textThe hoof wear of 80 male and 78 female moose of all social (maturation) classes was followed in three consecutive periods: late September-mid-October, second half of October, and November-mid-December. Seven different stages of wear, from heavily overgrown to heavily worn hooves were used as an index of mobility. Apparently none of the senior bulls had been highly mobile since the beginning of October. High mobility in prime bulls terminated by mid-October, however some were still very active in November. The team bowls exhibited highest mobility during second half of October and none of them had heavily worn hooves in November or December. sexually mature cows over 3 years old had not been highly mobile since the beginning of October while 2 year old cows just began their increased activity in this month. In the November-December period only a few yearling cows were found with heavily worn hooves. The authors anticipate that the pattern of hoof wear could reflect the different phases of the sexual cycle in both sexes. Thus hoof wear could indicate timing of the rut and be a useful management tool
LIVE TRAPPING MOOSE AT MINERAL LICKS IN ALBERTA
No full textMoose (Alces alces) were live trapped in the Boreal Forest of Alberta in order to radio tag animals for a moose movement study. From 1970 to 1977 a total of 148 moose were captured during 1,272 trap-nights (11.6 captures/100 trap-nights). Seventeen moose (11.5 percent) escaped before they could be tagged. Escapes were attributed to trap malfunction and animals breaking out of the trap. One hundred and nineteen moose were immobilized in the trap by darting with an animal capture rifle. Immobilizing drugs used were sernylan on 11 moose, rompun on 1 moose and M99 on 107 moose. The 9 traps were unbaited and were located adjacent to natural mineral licks in remote regions. Trapping was most successful in early June when captures were as high as 21.4/100 trap-nights
SOME WILDLIFE CENSUS ESTIMATES BASED ON NON-NORMAL FREQUENCY DISTRIBUTIONS
No full textWildlife census results often give very skewed distributions which make a poor fit to the normal distribution. The question arises whether we should use normal or non-normal methods in calculating a census estimate based on such data. In this study, four sets of sampling experiments were based on wildlife census results which made a good fit to the negative binomial or Poisson distributions. Confidence limits of the mean based on these distributions were similar in width to limits based on the normal distribution, and they contained the true population mean in an approximately equal proportion of cases. This held even at sample sizes which were below the level recommended for the normal approximation to be valid. It is concluded that the non-normal techniques provided no substantial improvement in estimating the confidence limits of the mean for a variety of positively skewed results
EFFECT OF POSTURE, FEEDING, LOW TEMPERATURE, AND WIND ON ENERGY EXPENDITURES OF MOOSE CALVES
No full textEnergy expenditures of two moose calves (Alces alces) were studied during late fall and early winter. Interactions of level of feeding, temperature, and posture were examined using a closed-circuit indirect calorimeter. Interactions of temperature and wind were determined in a wind tunnel using the Douglas-bag technique. Increments in energy expenditure due to feeding were approximately 20% over resting metabolism. The energy cost of maintaining a standing posture was in the order of 35%. As temperature dropped from -20℃ to -30℃, metabolic rate increased 36% while standing, but only 2% while lying. Wind speeds up to 8 m sec-1 increased energy expenditures consistently only at temperatures below -20℃
MOOSE MANAGEMENT IN NEWFOUNDLAND 1972-1977
No full textMoose licenses have been issued throughout insular Newfoundland on an area quote of basis since 1973. Analysis of population trend indices and population density estimates indicate that moose populations in practically all 38 areas responded in the direction that management intended
