Mutual or reciprocal actions or influences. For example, predation, parasitism, mutualism, etc. Relations with products grown and stored by man (plagues) are also included.

##Atomized branch##

InteractionAtomized

Interactions element in structured format.

Class: [InteractionAtomizedClass] (https://github.com/tdwg/PlinianCore/wiki/InteractionAtomizedClass)

AncillaryData

Ancillary information of the InteractionAtomized element.

Class: [AncillaryDataClass] (https://github.com/tdwg/PlinianCore/wiki/AncillaryDataClass)

##Unstructured branch##

InteractionUnstructured

Interactions element in text block format.

Class: [NormalString] (https://github.com/tdwg/PlinianCore/wiki/NormalString)

AncillaryData

Ancillary information of the InteractionUnstructured element.

Class: [AncillaryDataClass] (https://github.com/tdwg/PlinianCore/wiki/AncillaryDataClass)

Image	Description
	Complex Type
	Sequence structure
	Choice structure
	Obligatory element
	Optional element
	minOccurs=0 maxOccurs=unbounded
	minOccurs=1 maxOccurs=unbounded