Can an rvalue be moved into a shared_ptr

Is it possible to 'move' an rvalue into a shared_ptr. All the methods which I've tried so far result in a copy.

My desired usage pattern is:

class Element {
public:
    Element(const string &);
    Element(const Element &) = delete; //delete copy constructor
};

class MyCollectionOfElements {
public:
    void add(Element &&); // add by rvalue
protected:
    vector<shared_ptr<Element>> elements;
};

MyCollectionOfElements elements;
elements.add(Element("something"));

There are reasons why I want this pattern, and understand that there are alternative patterns which naturally work (e.g. passing the new Element as a pointer rather than an rvalue).

My current suspicion is that the incoming rvalue is on the stack, whilst I need to have it on the heap to store it in a shared_ptr, therefore a copy is inevitable.