Assertion: sea otter | /r/CapableOf | provide valuable ecosystem services
Facets:
value: by means of these indirect effects
type: MANNER
Source sentences:
text: At the same time, sea otters have helped to restore the ecological functioning of degraded coastal ecosystems by initiating trophic cascades in kelp forests (Estes and Palmisano, 1974; Estes and Duggins, 1995; Watson and Estes, 2011) and estuaries (Hughes et al., 2013), thereby providing valuable ecosystem services by means of these indirect effects.