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Research article - Peer-reviewed, 2023

Widespread habitat for Europe's largest herbivores, but poor connectivity limits recolonization

Bluhm, Hendrik; Diserens, Tom A. A.; Engleder, Thomas; Heising, Kaja; Heurich, Marco; Janik, Tomas; Jirku, Miloslav; Klich, Daniel; Koenig, Hannes J. J.; Kowalczyk, Rafal; Kuijper, Dries; Maslanko, Weronika; Michler, Frank-Uwe; Neumann, Wiebke; Oeser, Julian; Olech, Wanda; Perzanowski, Kajetan; Ratkiewicz, Miroslaw; Romportl, Dusan; Salek, Martin;
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Aim: Several large-mammal species in Europe have recovered and recolonized parts of their historical ranges. Knowing where suitable habitat exists, and thus where range expansions are possible, is important for proactively promoting coexistence between people and large mammals in shared landscapes. We aimed to assess the opportunities and limitations for range expansions of Europe's two largest herbivores, the European bison (Bison bonasus) and moose (Alces alces).Location: Central Europe.Methods: We used large occurrence datasets from multiple populations and species distribution models to map environmentally suitable habitats for European bison and moose across Central Europe, and to assess human pressure inside the potential habitat. We then used circuit theory modeling to identify potential recolonization corridors.Results: We found widespread suitable habitats for both European bison (> 120,000 km(2)) and moose (> 244,000 km(2)), suggesting substantial potential for range expansions. However, much habitat was associated with high human pressure (37% and 43% for European bison and moose, respectively), particularly in the west of Central Europe. We identified a strong east-west gradient of decreasing connectivity, with major barriers likely limiting natural recolonization in many areas.Main conclusions: We identify major potential for restoring large herbivores and their functional roles in Europe's landscapes. However, we also highlight considerable challenges for conservation planning and wildlife management, including areas where recolonization likely leads to human-wildlife conflict and where barriers to movement prevent natural range expansion. Conservation measures restoring broad-scale connectivity are needed in order to allow European bison and moose to recolonize their historical ranges. Finally, our analyses and maps indicate suitable but isolated habitat patches that are unlikely to be colonized but are candidate locations for reintroductions to establish reservoir populations. More generally, our work emphasizes that transboundary cooperation is needed for restoring large herbivores and their ecological roles, and to foster coexistence with people in Europe's landscapes.


Alces alces; Bison bonasus; ecological restoration; megafauna; niche modeling; potential habitat; range expansion; rewilding; wildlife crossings

Published in

Diversity and Distributions
2023, volume: 29, number: 3, pages: 423-437
Publisher: WILEY

Authors' information

Bluhm, Hendrik
Humboldt University of Berlin
Diserens, Tom A. A.
Polish Academy of Sciences
Diserens, Tom A. A.
University of Warsaw
Heurich, Marco
Inland Norway University of Applied Sciences
Heurich, Marco
University of Freiburg
Janik, Tomas
Silva Tarouca Research Institute for Landscape and Ornamental Gardening
Jirku, Miloslav
Czech Academy of Sciences
Klich, Daniel
Warsaw University of Life Sciences
Koenig, Hannes J. J.
Leibniz Zentrum fur Agrarlandschaftsforschung (ZALF)
Kowalczyk, Rafal
Mammal Research Institute of the Polish Academy of Sciences
Kuijper, Dries
Mammal Research Institute of the Polish Academy of Sciences
Maslanko, Weronika
University of Life Sciences in Lublin
Michler, Frank-Uwe
Eberswalde University for Sustainable Development
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies
Oeser, Julian
Humboldt University of Berlin
Perzanowski, Kajetan
Catholic University of Lublin
Ratkiewicz, Miroslaw
University of Bialystok
Romportl, Dusan
Silva Tarouca Research Institute for Landscape and Ornamental Gardening
Salek, Martin
Institute of Vertebrate Biology of the Czech Academy of Sciences
Salek, Martin
Czech University of Life Sciences Prague
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