Breaking Dawn over the Swamp

Swamps may be classified as either river swamps or still-water swamps. River swamps have a surface flow of water at least part of the year. They generally have a shorter hydroperiod than still-water swamps with more frequent dry periods in between. River swamps are usually formed from the overflow of rivers or streams. In dry seasons, when water levels drop, these swamps have a mucky, peat-like soil. Swamps with short hydroperiods and flowing water have higher levels of dissolved oxygen and faster rates of organic matter removal. Additionally, water in river swamps is usually clearer and less acidic than in still-water swamps. Hardwood species are more likely to grow in these wetlands than in still-water swamps. About one-third of the swamps in Florida are classified as river swamps. Most of these are found in Northern Florida.