Science

This is a GNWT commitment made during the WRRB's Science Technical Session on October 5, 2020 to share the adult caribou survival estimates up to June 2020.

This is a GNWT commitment made during the WRRB's Science Technical Session on October 5, 2020 to share a summary of the kelsall wolf poisoning book.

This is a GNWT commitment made during the WRRB's Science Technical Session on October 5, 2020 to provide an updated Table 33 from the Technical Report.

This is a written summary of the WRRB's Science Technical Session held on October 5, 2020 via Zoom.

Unlike all other members of the deer family, subpopulations of barren-ground caribou (Rangifer tarandus groenlandicus) are typically sine-cyclic. We used Bayesian Information Criteria (BIC) to rank competing population dynamics models for 11 North American barren-ground caribou subpopulations. Nine of these subpopulations were best described as sine-cyclic with periods ranging from a minimum of 26 years (Bluenose-East and Porcupine) to a maximum of 55 years (Western Arctic); and amplitudes ranging from a minimum of 8 455 (Cape Bathurst) to a maximum of 327 432 (George River).

This is Appendix 11.9 of the Wolf (Dı̀ga) Management Pilot Program Technical Report, which shows the winter range analysis as completed by Caslys.  The methods are described in the Technical Report. This is Part 2 or 2.

This is Appendix 11.9 of the Wolf (Dı̀ga) Management Pilot Program Technical Report, which shows the winter range analysis as completed by Caslys.  The methods are described in the Technical Report.

The aim of this study was to reconstruct population dynamics of barren-ground caribou (Rangifer tarandus groenlandicus) herds from the frequency of trampling scars on tree roots of black spruce (Picea mariana [Mill.] BSP) in the forest-tundra of central Northwest Territories, Canada. Two groups of sites were sampled that roughly corresponded with the migration routes of the Bathurst and Beverly caribou herds. The caribou migrate annually for long distances from the forest to the open tundra in late spring, and return to the forest in the autumn.

Wolves, Canis lupus, routinely live in large packs that include unrelated individuals and mature offspring. Studies show that individual wolves that live in large packs suffer reduced foraging returns. Therefore,
group hunting and group living (sociality) in wolves is generally thought to be favoured by indirect fitness gains accrued through kin-directed altruism. However, we show that kin-directed altruism cannot account

Wolves, Canis lupus, routinely live in large packs that include unrelated individuals and mature offspring. Studies show that individual wolves that live in large packs suffer reduced foraging returns. Therefore,
group hunting and group living (sociality) in wolves is generally thought to be favoured by indirect fitness gains accrued through kin-directed altruism. However, we show that kin-directed altruism cannot account