Invasive Purple Loosestrife (finally) slows its northward march

According to a study by Robert Colautti, the Purple Loosestrife (Lythrum salicaria) invading Canada has shortened its growing season to match the climate, resulting in smaller plants and reduced seed production. According to Colautti: “Genes that cause early flowering also reduce plant size, so early flowering and small size evolve together,” says Colautti. “Smaller size results in lower seed production, which is likely to limit the spread of purple loosestrife in northern regions.” Read more here.

Advertisements
Posted in INVASIVE species. Comments Off on Invasive Purple Loosestrife (finally) slows its northward march