Importance of Cattails in Wetlands (Audio Described)
Cattail (Typha) is an iconic emergent wetland plant found worldwide. By producing an abundance of wind-dispersed seeds, cattail can colonize wetlands across great distances, and its rapid growth rate, large size, and aggressive expansion results in dense stands in a variety of aquatic ecosystems such as marshes, ponds, lakes, and riparian areas. These dense stands impact local plant and animal life, biogeochemical cycling, and wetland hydrology, which in turn alter wetland functions. Over recent decades, the distribution and abundance of cattail in North America has increased as a result of human disturbances to natural water cycles and increased nutrient loads. In addition, highly competitive nonnative and hybrid taxa have worsened the rapid spread of cattail. Because cattail invasion and expansion often change wetlands in undesirable ways, wetland managers often respond with widespread management efforts, though these efforts may have short-lived or weak effects. Despite the negative impacts, cattail provides beneficial ecosystem services including the reduction of pollution through bioremediation and the production of biofuel material. A diverse team of researchers produced a paper that details the spread and management of cattail throughout North America (https://link.springer.com/article/10.1007/s13157-019-01174-7). This video highlights the primary topics covered in the paper.