Rangifer https://septentrio.uit.no/index.php/rangifer Rangifer is the world's only scientific journal dealing exclusively with biology and management of arctic and northern ungulates, reindeer and caribou in particular. Rangifer publishes original research papers, review articles and brief communications in all themes and fields related to the animal reindeer/caribou and reindeer husbandry as culture and industry, and also papers on other northern ungulates. en-US <!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves /> <w:TrackFormatting /> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning /> <w:ValidateAgainstSchemas /> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF /> <w:LidThemeOther>SV</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables /> <w:SnapToGridInCell /> <w:WrapTextWithPunct /> <w:UseAsianBreakRules /> <w:DontGrowAutofit /> <w:SplitPgBreakAndParaMark /> <w:EnableOpenTypeKerning /> <w:DontFlipMirrorIndents /> <w:OverrideTableStyleHps /> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> <m:mathPr> <m:mathFont m:val="Cambria Math" /> <m:brkBin m:val="before" /> <m:brkBinSub m:val="&#45;-" /> <m:smallFrac m:val="off" /> <m:dispDef /> <m:lMargin m:val="0" /> <m:rMargin m:val="0" /> <m:defJc m:val="centerGroup" /> <m:wrapIndent m:val="1440" /> <m:intLim m:val="subSup" /> <m:naryLim m:val="undOvr" /> </m:mathPr></w:WordDocument> </xml><![endif]--><p class="MsoNormal"><span style="font-family: 'Verdana','sans-serif'; color: black; mso-ansi-language: EN-US;" lang="EN-US">Authors retain copyright and grant Rangifer<em> </em>irrevocable and non-exclusive right of publication with the work simultaneously licensed under a Creative Commons Attribution License (CC-BY). This means, among other things, that anyone is free to copy and distribute the content, as long as they give proper credit to the author(s) and the journal. 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font-size:10.0pt; font-family:"Times New Roman","serif";} --> <!--[endif] --> rangifer@slu.se (Eva Wiklund) septentrio@ub.uit.no (Septentrio Academic Publishing) Tue, 05 May 2020 20:11:39 +0200 OJS 3.1.2.0 http://blogs.law.harvard.edu/tech/rss 60 Spatial structure of boreal woodland caribou populations in northwest Canada https://septentrio.uit.no/index.php/rangifer/article/view/4902 <p>Local population units (LPUs) were delineated in Canada’s recovery strategy for threatened boreal woodland caribou (<em>Rangifer tarandus caribou</em>). Population viability analyses central to contemporary integrated risk assessments of LPUs implicitly assume geographic closure. Several LPUs in northwest Canada, however, were in part delineated by geopolitical boundaries and/or included large areas in the absence of evidence of more finely resolved population spatial structure. We pooled &gt;1.2 million locations from &gt;1200 GPS or VHF-collared caribou from northeast British Columbia, northwest Alberta and southwestern Northwest Territories. Bayesian cluster analysis generated 10 alternative candidate LPUs based on a spatial cluster graph of the extent of pairwise co-occurrence of collared caribou. Up to four groups may be artifacts in as yet under-sampled areas. Four were mapped LPUs that were conserved (Prophet, Parker, Chinchaga and Red Earth). &nbsp;One small group between Parker and Snake-Sahtaneh known locally as the “Fort Nelson core,” and outside any mapped LPU, was also conserved. Finally, one large group, at &gt;136000 km<sup>2</sup>, spanned all three jurisdictions and subsumed all of six delineated LPUs (Maxhamish, Snake-Sahtaneh, Calendar, Bistcho, Yates, Caribou Mountains) and part of southern Northwest Territories. These results suggest less geographic closure of LPUs than those currently delineated, but further analyses will be required to better reconcile various sources of knowledge about local population structure in this region.&nbsp; &nbsp;</p> Steve Wilson, Glenn Sutherland, Nicholas Larter, Allicia Kelly, Ashley McLaren, James Hodson, Troy Hegel, Robin Steenweg, Dave Hervieux, Tom Nudds Copyright (c) 2020 Steve Wilson, Glenn Sutherland, Nicholas Larter, Allicia Kelly, Ashley McLaren, James Hodson, Troy Hegel, Robin Steenweg, Dave Hervieux, Tom Nudds http://creativecommons.org/licenses/by/3.0/ https://septentrio.uit.no/index.php/rangifer/article/view/4902 Tue, 05 May 2020 00:00:00 +0200 Reindeer fidelity to high quality winter pastures outcompete power line barrier effects https://septentrio.uit.no/index.php/rangifer/article/view/4968 <p>We investigated barrier effects of a 66 kV power line established in 1966 before and after the line was upgraded to 132 kV in 2004 over a period of 44 years (1974-2017) in the North Ottadalen wild reindeer area (3245 km<sup>2</sup>) of &nbsp;which 1038 km<sup>2</sup> are in use as winter pastures. The power line transects a peninsula (135 km<sup>2</sup>) with high quality winter pastures in the southeast periphery. The reindeer population originated from a nucleus herd of 402 animals of domestic origin released in the area in 1964-1965 and 100 resident wild animals. Yearly winter survey started in 1974 and reindeer were first surveyed south of the 66 kV power line in 1982. Comparing the number of animals recorded in the peninsula vs. the number of individuals expected relative to available grazing area during the three periods (1974-2004, 1982-2004 and 2005-2017), the number of animals recorded in the peninsula was 3.6–4.9 times higher than expected. Since the upgrade of the power line, a substantial part of the reindeer population grazed in the peninsula every year. We therefore conclude that there was no long-term barrier effect from the original power line and no barrier effects at all from the upgrade. However, during the first 5 surveys of this study, there were no animals in the peninsula. Therefore, even if there are several possible reasons for this, we cannot exclude the possibility of short-term barrier effects resulting from the construction of the original power line. Our results support recent studies that report no effects from existing power lines and contrast some previous findings that have reported strong long-term barrier and avoidance effects of such infrastructure for <em>Rangifer</em> migration and grazing behaviour.</p> Eigil Reimers, Sindre Eftestøl, Diress Tsegaye, Knut Granum Copyright (c) 2020 Eigil Reimers, Sindre Eftestøl, Diress Tsegaye, Knut Granum http://creativecommons.org/licenses/by/3.0/ https://septentrio.uit.no/index.php/rangifer/article/view/4968 Wed, 16 Sep 2020 15:07:49 +0200 A review of reindeer lichen (Cladonia subgenus Cladina) linear growth rates https://septentrio.uit.no/index.php/rangifer/article/view/4636 <p><em>Cladonia</em> subgenus <em>Cladina</em> (the reindeer lichens) can be a dominant part of terrestrial ecosystems worldwide. They are particularly abundant in arctic-alpine and boreal regions, where they are a primary food source for woodland caribou/reindeer in winter months. Determining the growth rates of reindeer lichen is important for understanding and managing lichen regeneration following disturbances such as timber harvesting, mining, grazing, and wildfire. Regeneration and rehabilitation rates can be calculated with greater accuracy when growth rates are well understood. We provide a summary of 17 studies from 6 countries that determined the linear growth rates of three reindeer lichen groups, <em>Cladonia arbuscula/mitis</em> (mean = 4.7 mm/yr.), <em>C. rangiferina/ C. stygia</em> (mean = 5.1 mm/yr.), and <em>C. stellaris</em> (mean = 4.8 mm/yr.). We use linear growth rates as a proxy for over-all growth and biomass. Variables found to influence lichen growth rates are also discussed, which include light, moisture, temperature, air pollution, acid rain, precipitation, snow accumulation, substrate, age of individuals, and type of disturbance. These results can assist land managers in developing more accurate strategies for restoring lichens in disturbed areas.</p> Richard Troy McMullin, Sean Rapai Copyright (c) 2020 Richard Troy McMullin, Sean Rapai http://creativecommons.org/licenses/by/3.0/ https://septentrio.uit.no/index.php/rangifer/article/view/4636 Wed, 12 Aug 2020 20:41:50 +0200