Shrubs Overtook Tundra in Krkonoše Mountains

Rising temperatures allowed woody vegetation to expand across alpine grasslands in the Czech and Polish border region.

Updated on Oct. 14, 2026 in Botany

Dwarf mountain pines and hardy shrubs spreading across a rocky high-altitude meadow with distant granite mountain slopes.
Rising temperatures in the Krkonoše Mountains are allowing woody shrubs to encroach upon and displace rare alpine grassland ecosystems. AI Illustration. Upload story photo >

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In late September, researchers documented how rising global temperatures are triggering shrubification in the Krkonoše Mountains. Dwarf mountain pine, heather, and bilberry are now spreading into open alpine grasslands previously reserved for rarer flora.

Why it matters

The encroachment of shrubs threatens the tundra ecosystem, which remains one of the rarest natural features in the region. Climate change has provided favorable conditions for these plants to outcompete and displace distinctive alpine species.

Scientific research in the Krkonoše Mountains has spanned over 100 years. During a meeting in Špindlerův Mlýn, 160 experts from Czechia and Poland gathered to examine findings from areas such as Studniční hora.

The players

Czech and Polish National Parks

These organizations manage the cross-border protected areas where research findings are expected to influence future conservation management strategies.

The details

Warmer conditions have reduced the harshness of the mountain climate, allowing species like dwarf mountain pine to colonize areas outside their typical confined ranges. Conservationists are currently working to determine how to manage these changes while fulfilling legal mandates to protect specific endangered plant life.

Timeline

  1. In late September, researchers from Czechia and Poland met to discuss climate impacts.

The Big Picture

This discovery follows a pattern set by the alpine tundra shrubification process, where warming climates consistently alter high-altitude vegetation composition. The findings provide a critical data point for understanding how fragile alpine biomes reorganize as environmental pressures shift.

The findings in the Krkonoše Mountains serve as a model for understanding how climate change impacts biodiversity in high-altitude environments worldwide. This data informs the development of future management strategies for protecting endangered alpine flora in shifting ecological zones.

The takeaway

Understanding how shrubification alters alpine landscapes is essential for the future conservation of rare tundra ecosystems. These findings emphasize the need for adaptive management strategies in protected areas facing rapid environmental shifts.

Further reading

For more on plant ecosystem changes, visit the Botany section.

Source note: This article includes information reported by Radio Prague International.

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Should park authorities actively intervene to stop natural vegetation shifts in protected nature reserves?