What are the Duties of the Speaker Pro Tempore?

Rep. Jacque running for Assembly speaker pro tem. (Milwaukee Journal Sentinel, 8/26/2013)

Tyler August (R-Lake Geneva) is also considering a run.

With current Assembly Majority Leader Scott Suder (R-Abbotsford) resigning to take a position with the Public Service Commission,  2 members of the Assembly, Dean Knudson (R-Hudson) and Bill Kramer (R-Waukesha), are campaigning for the leadership position that Suder is vacating.

Kramer currently serves as speaker pro tem.

According to the Wisconsin Blue Book  (2011-12 editions, pages 238, 240).....

Speaker pro tempore = "temporary speaker", or, literally, speaker "for the time being".

Key phrase:  "to varying degrees".

The Wisconsin State Statutes [13.41[1][b]0 sets the pecking order for the majority party in the Assembly.

1. The speaker of the assembly. 
2. The assembly majority leader. 
3. The speaker pro tempore of the assembly. 
4. The assistant assembly majority leader. 
5. The assembly majority caucus chairperson. 
6. The assembly majority caucus vice chairperson. 
7. The assembly majority caucus secretary.
8. The assembly majority caucus sergeant at arms.