..., some species actively shed branches or whole branch systems by using a mechanism that is similar to that of leaf abscission. This process, called cladoptosis, generally occurs in the crowns of trees where ultimate shoots or small branches are sacrificed in order to modify or optimize the tree's canopy...

... with events that may be coincident with high sedimentation rates ( Gastaldo, 1994 ; Martín-Closas and Gomez, 2004 ). But, it is important to know the biology of the plants involved. For example, fruits of Zelkova are disseminated by shedding leafy branches (cladoptosis). Hence, such debris encountered...