| Titre | Monitoring habitat condition changes during winter and pre-calving migration for Bathurst Caribou in northern Canada |
| Auteur | Chen, W; Russell, D E; Gunn, A; Croft, B; Chen, W R; Fernandes, R; Zhao, H; Li, J; Zhang, Y; Koehler, K; Olthof, I; Fraser, R H; Leblanc, S G; Henry, G R; White, R G; Finstad, G L |
| Source | vol. 14, no. 1, 2013 p. 36-44, https://doi.org/10.1080/14888386.2012.705110 |
| Année | 2013 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20181589 |
| Éditeur | Informa UK Limited |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1080/14888386.2012.705110 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | télédétection; géophysique |
| Programme | Géosciences de changements climatiques |
| Résumé | (disponible en anglais seulement)
Many factors influence the abundance of migratory tundra caribou (Rangifer tarandus). To understand their interactions with caribou abundance, we need to
quantify these factors. In this study, we documented the changes in habitat conditions during winter and pre-calving migration for the Bathurst Caribou herd, using remote sensing data and ground measurements. We found there was a significant decrease
in forest area which has abundant lichen, the main caribou winter diet, during recent decades due to increase in burned area, which in turn was positively correlated with summer temperature. For winter forage accessibility, we examined the annual
maximum snow depth and mean ice content in snow (ICIS). There was a significant increase in ICIS during 1963-2006, but no trend in the maximum snow depth. During the pre-calving migration, the percent snow cover showed large inter-annual variations
but no significant trend. |
| GEOSCAN ID | 311944 |
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