Factors influencing the distribution of Bathurst barren-ground caribou (Rangifer tarandus groenlandicus) during winter.

Barrier, Tara A.

doi:10.24124/2011/bpgub794

Cited by 2 publications

(3 citation statements)

References 76 publications

(231 reference statements)

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“…Vegetation is characterized by northern boreal forest ecosystems. Tree and shrub species include black spruce (Picea mariana), white spruce (Picea glauca), jack pine (Pinus banksiana), willow (Salix), and blueberry/cranberry (Vaccinium), which typically develop on a continuous mat of lichens and mosses (Barrier 2011). The climate is semiarid and reflects that of the Canadian continental interior.…”

Section: Study Areamentioning

confidence: 99%

Distribution of barren‐ground caribou during winter in response to fire

Anderson

Johnson

2014

Ecosphere

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Abstract. We investigated the influence of past fires on the large-scale distribution of barren-ground caribou (Rangifer tarandus groenlandicus) in the Northwest Territories, Canada, during winter. We used an information-theoretic approach and data describing fire history, vegetation, and predation risk to develop resource selection functions that explained caribou distribution on early-and late-winter ranges. We evaluated multiple sets of models constructed across years for all caribou (pooled models) and for individual caribou by period (early and late winter). Winter range habitats important to caribou were characterized by a high percentage of ground cover of lichen and herbaceous forage and a close proximity to lakes and rivers. Although caribou avoided areas densely populated with burns, there was considerable use of early-seral habitats as well as areas adjacent to the burn boundary. Disparate selection strategies among caribou highlight the importance of investigating both individual and global resource selection models. These results suggest that at some spatial and temporal scales, individual barren-ground caribou may be less averse to fire than previously thought.

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Section: Study Areamentioning

confidence: 99%

Distribution of barren‐ground caribou during winter in response to fire

Anderson

Johnson

2014

Ecosphere

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“…Indicates whether or not dead bases of lichen thalli were included in the biomass estimates(Barrier 2011). b Addition toBarrier's (2011) original table.…”

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confidence: 99%

“…Barrier 2011). At the plot centre I conducted a visual estimate of tall shrub cover (>50 cm tall) in a 5.64 m 2 (0.01 ha) fixed-area plot and identified the top three most frequent shrub species.I used a rod relascope to determine stand basal area (m 2 /ha) in each plot.…”

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confidence: 99%

Close encounters of the burned kind: Spatiotemporal effects of fire on habitat selection strategies of woodland caribou (Rangifer tarandus caribou) during winter

Russell¹

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Forest fire is the primary natural disturbance process influencing the distribution and abundance of terrestrial lichens across ranges of woodland caribou (Rangifer tarandus caribou), including the Klaza Caribou Herd in west-central Yukon. I used stand and understory data to understand variation in the abundance of lichens in burns of various ages. Focusing on the distribution of individual caribou, I used a dataset of GPS collar locations to examine resource selection on the winter range and within burns. Results suggested that burns provided suboptimal habitat for the KCH until 50 years post-fire; however, analyses focused on the use of burned habitat indicated that they regularly encountered burns and opportunistically used remnant lichen within the burn perimeter. The relationship between caribou and burned landscapes is complex and non-linear indicating that wildlife managers should look beyond burn age to account for the effects of fire on the availability and quality of caribou habitat.

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Factors influencing the distribution of Bathurst barren-ground caribou (Rangifer tarandus groenlandicus) during winter.

Cited by 2 publications

References 76 publications

Distribution of barren‐ground caribou during winter in response to fire

Distribution of barren‐ground caribou during winter in response to fire

Close encounters of the burned kind: Spatiotemporal effects of fire on habitat selection strategies of woodland caribou (Rangifer tarandus caribou) during winter

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