Publications

Moose and ticks in Alberta : a dieoff in 1998/99

Description

Significant mortality of moose (Alces alces) occurred throughout broad regions of northern and western Alberta in early 1999. Occurrences involving moose were recorded at local Alberta Natural Resources Service (NRS) district offices. A total of 1130 occurrence reports involving moose throughout Alberta between January 1 and April 30, 1999 were submitted to the author for review. Although there was considerable inherent bias in the sample, some general patterns emerged. Most moose (92%) had evidence of hairloss and 28% of them were dead. In the overall sample, 35% were calves; however in the subsample of dead moose with hairloss, 43% were calves. It is assumed that the hairloss was a result of infestation with winter tick, Dermacentor albipictus. Most occurrences (96%) were within the boreal habitats of northern and western Alberta and half of them were recorded in March (50%). It is apparent that excessive mortality of moose, particularly calves, occurred in late winter. The outbreak is considered a direct result of the interactions among moose, ticks, habitat, and weather. Weather appears to have been the ultimate force driving the interactions. Late winter snow cover and moose densities may provide clues for potential management actions in the subsequent fall period

Updated

October 29, 1999

Tags
moose ticks

Title and publication information

Type
Report
Alternative Title

Occasional paper number 20

Extent

18 pages

Frequency

Once

Publisher / Creator Information

Publisher

Environment (1971-1992, 1999-2011)

Contributor

Pybus, M.J.

Place of Publication

Edmonton

Subject Information

Topic
Environment
Start Date

1998-01-01

End Date

1999-12-31

Subject (LCSH)

Ticks--Alberta.

Resource Dates

Date Created

1999-10-29

Date Added

2016-03-16T21:32:22.653786

Date Modified

1999-10-29

Date Issued

1999-10-29

Audience information

Identifiers

ISBN (print)

0778508943

NEOS catalogue key

2358871

Local Identifier

I/788

Usage / Licence

Licence

No licence

Contact

Contact Name

Environment and Parks