Mountains of Kilpisjarvi Host An Abundance of Threatened Plants in Finnish Lapland

Kauhanen, Heikki

doi:10.17581/bp.2013.02105

Cited by 10 publications

(9 citation statements)

References 14 publications

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“…Our findings show calcareous bedrock to support a higher THR (see also Neuvonen 1997, Anderson andFerree 2010). As calcareous areas are not common in this region, it follows that many of the species favoring a high soil pH are rare or threatened (Kauhanen 2013). Furthermore, due to linkages between bedrock pH and plant diversity with evolutionary history (Chytrý et al 2003), historical dynamics are highly relevant, alongside contemporary conditions, for patterns of plant diversity (Gaston 2000).…”

Section: The Patterns and Drivers Of Diversitymentioning

confidence: 53%

Drivers of high-latitude plant diversity hotspots and their congruence

Niskanen

Heikkinen

Väre

et al. 2017

Biological Conservation

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Determining the drivers, patterns and hotspots of biodiversity can be of critical importance in supporting regional conservation planning. However, as biodiversity hotspots can be described with several different metrics, it is important to investigate their congruence as well as the spatial overlap of hotspots with protected areas. Here, by using extensive data on climate, topography, soil characteristics and vascular plants combined with boosted regression tree models, we determine the patterns and key drivers of plant diversity hotspots along broad environmental gradients in northernmost Europe spanning from taiga landscapes to treeless tundra. We assess plant diversity with four metrics-species richness, range-rarity richness, threatened species richness, and local contribution to beta diversity-and examine their congruence with each other as well as with contemporary conservation areas. We found that climate plays an important role in governing species diversity, though topoedaphic are highlighted alongside climatic predictors in determining the diversity patterns of many threatened, near-threatened, and range-restricted species. Importantly, the different diversity metrics have contrasting drivers and, overall, their hotspots have low congruence. Furthermore, existing protected areas appear to offer limited coverage for hotspots of vascular plant diversity. Modelling the various facets of diversity and their drivers, such as the topo-edaphic setting, may help conserve diversity in a changing climate. Projected patterns of different aspects of diversity and their congruency can provide insights for the processes underlying biodiversity and be employed to assess the representativeness of protected area networks.

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Section: The Patterns and Drivers Of Diversitymentioning

confidence: 53%

Drivers of high-latitude plant diversity hotspots and their congruence

Niskanen

Heikkinen

Väre

et al. 2017

Biological Conservation

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“…The hill sites are likely to be harsher environments than the valley sites as ambient temperatures drop with altitude on average 0.9 C with every 100 m increase in altitude (Järvinen 1989), exposure to winds becomes higher, and vegetation cover is reduced (Kauhanen 2013). Because of the latter, also exposure to predation by birds and mammals is likely to increase.…”

Section: Discussionmentioning

confidence: 99%

“…The climate in the area lies between the North Atlantic oceanic climate and the Eurasian continental climate, with a mean annual temperature of -2.0°C. The area experiences a large variation in solar radiation: in winter the sun is below the horizon for 55 days, while in summer there is no sunset for 62 days (Kauhanen 2013 Järvinen 1987). The area resides about 100 km north of the continuous coniferous forest and belongs to the sub-alpine birch forest zone (Betula pubescens) at low altitudes (480-600 m).…”

Section: Study Areamentioning

confidence: 99%

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Small-scale spatial and temporal variation of life-history traits of common frogs (Rana temporaria) in sub-Arctic Finland

et al. 2017

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Small-scale spatial and temporal variation in abiotic and biotic factors can cause variation in several major life history traits in vertebrate ectotherms such as amphibians. However, relatively little is known about small-scale variation in life history traits of sub-Artic amphibians. We studied the spatio-temporal variation of adult life history traits linked to age and body size in the common frog (Rana temporaria) from low (i.e., valley at 480 m a.s.l.) and high (i.e., hill at 530-650 m a.s.l.) altitude sites in the sub-Arctic Kilpisjärvi area (Finland). Data on life history traits of frogs from hill sites collected during a three-year field study were compared with previously published data from the valley sites. The results showed spatio-temporal variation in life-history traits, frogs responding to spatio-temporal variation in the environmental conditions with variation in age, life span, survival rates, body size and mass. Frogs from hill sites had shorter life span, both in terms of mean age (5.6 versus 10.5 years) and longevity (9-10 versus 18 years), smaller snout-vent length (63 versus 77 mm) and body mass (24 versus 45 g) than frogs from valley sites. The differences were more pronounced in females than in males indicating some sexspecific responses to environmental differences among sites. The results show that small differences in elevation (or elevation related abiotic and biotic factors) can translate to large differences in mean values of important life history traits in common frogs living at the edge of their distribution range.

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“…This study has shown that chemical composition of the fluid does not match the geochemical signal from the soil. Although relevant studies on the relation between bedrock geochemistry and biodiversity have been conducted on the Lake Saana catchment (Systra, 2010;Kauhanen, 2013;Kumar et al, 2016) [72][73][74], these are not detailed enough to understand whether hydrochemical differences between the western and eastern parts of the catchment have affected local biodiversity.…”

Section: Stream Water Input Into the Surroundingsmentioning

confidence: 99%

Geochemical Processes Controlling Ionic Composition of Water in the Catchments of Lakes Saana and Saanalampi in the Kilpisjärvi Area of North Scandinavia

et al. 2019

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The study focuses on chemical composition of stream and subsurface water in the catchments of two small arctic alpine lakes in the Kilpisjärvi area (northwest Finland). Differences and changes in chemical components of both water types are followed in order to detect spatial variability and impact of environmental factors. To achieve this, ion compositions of subsurface water and streams were measured at 12 sites in the catchments of Lakes Saana and Saanalampi during four years (2008–2010, and again in 2017). In the Lake Saanalampi catchment, the salinity of stream water (7.0 to 12.7 μS·cm−1) corresponded to that of snow. In the catchment of Lake Saana, however, the conductivity in stream water was much higher (40 to 220 μS·cm−1), connected mainly to the increase of SO42− and less with Mg2+ and Ca2+ contents, especially in the western part of the Saana catchment. These results demonstrate that arctic conditions do not preclude intense chemical weathering where conditions are favourable. Although chemical composition of the soil fluid does not match the geochemical signal from the local soil, rock composition, especially the presence of pyrite, is the main controller of chemical weathering rates of the rocks on the area. This supports earlier views that the character of precipitation mostly controls water chemistry of local lakes in the Kilpisjärvi area.

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Mountains of Kilpisjarvi Host An Abundance of Threatened Plants in Finnish Lapland

Cited by 10 publications

References 14 publications

Drivers of high-latitude plant diversity hotspots and their congruence

Drivers of high-latitude plant diversity hotspots and their congruence

Small-scale spatial and temporal variation of life-history traits of common frogs (Rana temporaria) in sub-Arctic Finland

Geochemical Processes Controlling Ionic Composition of Water in the Catchments of Lakes Saana and Saanalampi in the Kilpisjärvi Area of North Scandinavia

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