Problem with side-by-side tables

Question

I've checked out related questions here, and found similar answers via Google, and still can't figure out why the following code does not produce two side-by-side tables. They are narrow enough to fit on the page, but for any variation of textwidth, using either parbox or minipage, I always get the tables stacked vertically on top of each other instead of left to right.

I must be missing something obvious, but this is driving me nuts. What have I done wrong?

\documentclass{article}
\usepackage[margin=1in]{geometry}
\begin{document}

\begin{table}[h]
 \begin{minipage}{0.4\textwidth}
  \centering
  \begin{tabular}{|l|l|c|}\hline
    Site & Species & Abundance \\\hline
    S1 & A.rubrum & 25 \\
    S1 & A.saccharum & 5 \\
    S2 & Q.rubrum & 45 \\\hline
  \end{tabular}
  \caption{Long-form data}
  \label{tab:long-form}
\end{minipage}

\begin{minipage}{0.5\textwidth}
 \centering
 \begin{tabular}{|l|c|c|c|}\hline
  Sites & A.rubrum & A.sacch & Q.rubrum \\\hline
  S1    & 25 & 5 & 0 \\
  S2    & 0 & 0 & 45 \\\hline
 \end{tabular}
 \caption{Wide-form data}
 \label{tab:wide-form}
\end{minipage}

\end{table}

\end{document}

Answer 1

The empty line between the minipages generates a new paragraph. This pushes the second one down. Simply remove that line or end it with % will avoid the paragraph.