Propagule pressure

Propagule pressure is a term used in ecology and environmental science to describe the quantity and viability of organisms (propagules) that are introduced to a new environment. These propagules can include seeds, spores, eggs, larvae, or any dispersible stages of plants or animals. The concept of propagule pressure is significant in the study of biological invasions, as it helps to explain the likelihood and success of non-native species establishing themselves in new ecosystems.