Removal of nitrate from porewater through denitrification and other biogeochemical processes
The movement away from your place of birth and onto another location involving decision to depart, displacement, and settlement
The modification of environments by organisms in ways that influence resource availability for other species, exemplified by beaver dam construction creating pond habitats.
Movement of genes between populations through migration and reproduction
Transfer of pollen between different plant species that share generalist pollinators, often resulting in reproductive costs through pollen loss and reductions in seed set