 Factors influencing chironomid distribution and abundance One of the major factors that affect chironomid distribution is the climate conditions at the local, regional, and global scale . Changes in these conditions are preserved  over large periods of time as a fossil record .
<clarity>  Factors influencing chironomid distribution and abundance One of the major factors that affect chironomid distribution is the climate conditions at the local, regional, and global scale . Changes in these conditions are preserved  over large periods of time as a fossil record .
 Factors influencing chironomid distribution and abundance One of the major factors that affect chironomid distribution is the climate conditions at the local, regional, and global scale . Changes in these conditions are preserved over large periods of time .