Evidence of global pollution and recent environmental change in Kamchatka, Russia

Jones, Vivienne J.; Self, Angela; Solovieva, Nadia; Yang, Handong

doi:10.1016/j.gloplacha.2015.02.005

Cited by 20 publications

(13 citation statements)

References 73 publications

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“…Observations in Canada have shown that E. pedicellatum is sensitive to acidic precipitation (Maass & Yetman 2002). In Kamchatka, the level of air pollution is low in general, despite occasional volcanic activity, and detrimental levels of pollution were not found within local environments that could threaten E. pedicellatum populations (Jones et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Distribution and assessment of the conservation status ofErioderma pedicellatumin Asia

et al. 2019

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The first detailed survey is presented of a recently discovered population of Erioderma pedicellatum, a globally rare lichen, in the primeval spruce forests of the Kamchatka Peninsula, Russia. Three subpopulations are described, located in the Levaya Schapina River basin, in the Kimitina River basin, and on the slopes of the extinct volcano, Nikolka. In total, we observed 1894 thalli on 167 Yezo spruce trunks. In Kamchatka, E. pedicellatum occurs exclusively on bark-covered spruce twigs of mainly young and dwarf-stressed older trees. We discovered a high number of juvenile thalli, which suggests that this population is reproducing. However, its habitat is declining because spruce forests in the region are the target of industrial clear-cutting and there is a high incidence of forest fires. Over the next 60 years, which corresponds to three generations of E. pedicellatum, we infer that continued habitat loss will induce a 48% decline in these lichen populations. As a result of our analyses, the Asian population is classified as ‘Vulnerable’, based on IUCN Red List criteria.

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Section: Discussionmentioning

confidence: 99%

Distribution and assessment of the conservation status ofErioderma pedicellatumin Asia

et al. 2019

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“…We can dismiss significant impacts from the mining settlement 17 km NW of the lake because it was established only two years before core retrieval. Analyses of Hg in sediments of Lake Baikal (Gelety et al 2007) and other lakes (Jones et al 2015;Lamborg et al 2002) showed that Hg concentrations in sediments of remote natural lakes reflect variations in the Hg concentration in the atmosphere. In industrial areas, Hg adheres to aerosol particles and is transported over thousands of kilometers from its source for up to one year before being deposited (Lucotte et al 1995).…”

Section: Geochemical Impacts To the Lake Ecosystem At The Onset Of Inmentioning

confidence: 99%

“…Whereas atmospheric change acts mainly at a global scale, the impact of pollution occurs mainly at regional and local scales. Global influences on the environment can be recognized in pristine ecological systems that are not directly affected by local anthropogenic activities, such as in the vast boreal areas of the Northern Hemisphere (Jones et al 2015).…”

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confidence: 99%

“…Atmospheric fallout of anthropogenic pollutants, including heavy metals, leads to contamination of soils and subaquatic substrates. Historically emitted mercury (Hg) is a well-established tracer of heavymetal pollution in lakes (Jones et al 2015;Wang et al 2004). Although it is mainly adsorbed to sediment, it is still a dangerous threat to aquatic ecosystems and can affect the composition of, for example, diatom assemblages (Pérès et al 1997).…”

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confidence: 99%

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Effects of climate change and industrialization on Lake Bolshoe Toko, eastern Siberia

et al. 2021

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Industrialization in the Northern Hemisphere has led to warming and pollution of natural ecosystems. We used paleolimnological methods to explore whether recent climate change and/or pollution had affected a very remote lake ecosystem, i.e. one without nearby direct human influence. We compared sediment samples that date from before and after the onset of industrialization in the mid-nineteenth century, from four short cores taken at water depths between 12.1 and 68.3 m in Lake Bolshoe Toko, eastern Siberia. We analyzed diatom assemblage changes, including diversity estimates, in all four cores and geochemical changes (mercury, nitrogen, organic carbon) from one core taken at an intermediate water depth. Chronologies for two cores were established using 210Pb and 137Cs. Sedimentation rates were 0.018 and 0.033 cm year−1 at the shallow- and deep-water sites, respectively. We discovered an increase in light planktonic diatoms (Cyclotella) and a decrease in heavily silicified euplanktonic Aulacoseira through time at deep-water sites, related to more recent warmer air temperatures and shorter periods of lake-ice cover, which led to pronounced thermal stratification. Diatom beta diversity in shallow-water communities changed significantly because of the development of new habitats associated with macrophyte growth. Mercury concentrations increased by a factor of 1.6 since the mid-nineteenth century as a result of atmospheric fallout. Recent increases in the chrysophyte Mallomonas in all cores suggested an acidification trend. We conclude that even remote boreal lakes are susceptible to the effects of climate change and human-induced pollution.

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“…In remote lakes, anthropogenic heavy metals are usually derived dominantly from atmospheric deposition. Hence sediment records from these lakes usually document atmospheric deposition changes in the past and thus often employed to reconstruct pollution histories (Catalan et al, 2013;Engels et al, 2018;Jones et al, 2015;Sarkar et al, 2015;Wan et al, 2016). In recent years, such kind investigations have been carried out in many lakes from relatively remote areas of China, such as the Tibetan Plateau, West China, the Yungui Plateau (e.g.…”

Section: Introductionmentioning

confidence: 99%

One-century sediment records of heavy metal pollution on the southeast Mongolian Plateau: Implications for air pollution trend in China

et al. 2019

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Evidence of global pollution and recent environmental change in Kamchatka, Russia

Cited by 20 publications

References 73 publications

Distribution and assessment of the conservation status ofErioderma pedicellatumin Asia

Distribution and assessment of the conservation status ofErioderma pedicellatumin Asia

Effects of climate change and industrialization on Lake Bolshoe Toko, eastern Siberia

One-century sediment records of heavy metal pollution on the southeast Mongolian Plateau: Implications for air pollution trend in China

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