Plant Consumers Play Unexpectedly Large Role in The Evolution of Seedling Success
Published:26 May2021 Source:University of California - San Diego
For young plants, timing is just about everything. Now, scientists have found that herbivores, animals that consume plants, have a lot to say about evolution at this vulnerable life stage. Once a plant seedling breaches the soil surface and begins to grow, a broad range of factors will determine whether it thrives or perishes.
Scientists have long perceived that natural selection favors early rising seeds. Seedlings that emerge early in the growing season should have a competitive advantage in monopolizing precious soil resources. Early growth also should mean more access to light, since early growers can block sunlight for seedlings that emerge later in the season.