After reading this article, I was thinking it would be a real challenge to be out in the swamp area in Louisiana. If you were with a group investigating animal life in the swamps, you'd be hot and sweaty most of the time. How would you take a bath?
With so many insects, including those that bite, you would need to bring some netting to put over you when you sleep. It would be wise to bring a medicine bag to treat insect bites, cuts, etc.
In a hot humid place like this, keeping food cold and safe is very important, and water would need to be treated.
If the group is moving around, everyone would have to take turns with latrine duty!