close-up of a beaver-gnawed tree trunk with small pieces of wood, molenplas nature reserve

close beavergnawed tree trunk small pieces wood molenplas nature reserve animal bark beaver bite broken brown castor chew closeup concept cut dam damage destroyed destruction detail downfallen dry ecology ecosystem environment europe fall forest gnaw ground log marks nibble nobody outdoor park pattern plant rodent rough rural sawdust season stump texture timber wilderness wildlife wooden woods typical tooth construction natural dams south limburg netherlands