Host:European black alder (Alnus glutinosa
(L.) Gaertn.) Descriptor: Damage Description: Species re-introduced into Poland after WWII. At present, over 37,000 beavers exist in Poland, some causing damage to agricultural and forested lands. Image location: Poland
Specimen in collection: No Specimen Condition: Identification Method:
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Image Citation:(?) Gil Wojciech, Polish Forest Research Institute, Bugwood.org